[TechAssist] Re: Philips TS2744C103 chassis 27B8 Micro-p problem.
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 15 Apr 2003 07:19:30 -0400
Leroy,
Did you ever fix this one yet?
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
www.geminicomputertvsecurityalarms.com
----- Original Message -----
From: "LeRoy Westlund" <llw@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, March 28, 2003 12:48 PM
Subject: [TechAssist] Re: Philips TS2744C103 chassis 27B8 Micro-p problem.
>
> Go ahead and get some sleep for a few days.
> In the meantime, I'll order a philips IC for the vertical, even though I
> don't think it will fix the problem.
> Yes,...I used the Philips part for IC271.
> I have NO RGB output waveforms from IC271. I think there is a blanking
> pulse, but no video on it. But I do have video on pin 6, and around the
> video buffer stages. It's been a while, so I need to double check that.
> Pin 18 = + .1
> Pin 19, 20, & 21 = all read + 2.6
> I'll check the voltage on Y321 (xytal) later. I'll order a new one, just
in
> case.
>
> Thanks,
> LLW
>
> LeRoy Westlund
> Westlund TV & Electronics " Walk tall,...Walk straight
> 93 North Main and look the world
> Centerfield, UT 84622-0087 right in the eye "
> Ph./Fax 435-528-3822
> mailto:LLW@xxxxxxxxxx
>
> -----Original Message-----
> From: Gemini Computer & TV <geminitv@xxxxxxxxxxxxxxxx>
> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> Date: Friday, March 28, 2003 4:49 AM
> Subject: [TechAssist] Re: Philips TS2744C103 chassis 27B8 Micro-p problem.
>
>
> >
> >Leroy,
> >I agree with Jeff. I think you should install the Philips vertical IC
first
> >(part# 483520988531). In the mean time, what part number did you replace
> >IC271 with and what are the generic markings on that IC (I show it should
> be
> >a TDA8373C/N3, Philips part# 483520988544)? As far as crystal Y321
(Philips
> >part# 483524277023) goes, do you have oscillation there and if so what is
> >the frequency? What are the DC voltages at pins 10 and 11 of IC345? What
> are
> >the DC voltages at pins 18,19,20, and 21 of IC271? Do you have RGB output
> >waveforms at pins 19, 20, and 21 of IC271? Now you have made this a
mission
> >to figure this thing out and I won't be able to sleep right until we do!
> >
> >Bob Waterman, CET® #RI-28
> >Master Technician License #9109
> >Service Manager
> >Gemini Computer, TV, & Security Alarms
> >(508)695-7302
> >(508)695-7769 FAX
> >geminitv@xxxxxxxxxxxxxxxx
> >geminitv@xxxxxxx
> >www.geminicomputertvsecurityalarms.com
> >
> >----- Original Message -----
> >From: "LeRoy Westlund" <llw@xxxxxxxxxx>
> >To: <techassist@xxxxxxxxxxxxx>
> >Sent: Thursday, March 27, 2003 11:53 PM
> >Subject: [TechAssist] Re: Philips TS2744C103 chassis 27B8 Micro-p
problem.
> >
> >
> >>
> >> George,
> >> I guess I still need to do that. Took it off the bench, and robbed a
part
> >> out of it for now.
> >> I'll get back on it in a few days, and post the results.
> >> I can't figer that the set would even turn on, with a bad xytal. That's
> >why
> >> I never checked it.
> >>
> >> Thanks,
> >> LLW
> >>
> >> LeRoy Westlund
> >> Westlund TV & Electronics " Walk tall,...Walk straight
> >> 93 North Main and look the world
> >> Centerfield, UT 84622-0087 right in the eye "
> >> Ph./Fax 435-528-3822
> >> mailto:LLW@xxxxxxxxxx
> >>
> >> -----Original Message-----
> >> From: George <grndmstrg@xxxxxxxxxxxx>
> >> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> >> Date: Thursday, March 27, 2003 9:39 PM
> >> Subject: [TechAssist] Re: Philips TS2744C103 chassis 27B8 Micro-p
> problem.
> >>
> >>
> >> >
> >> >LeRoy,
> >> >
> >> >Did you scope crystal Y321 when installed to verify it's oscillating,
as
> >> you
> >> >know the micro needs clock to work?
> >> >
> >> >
> >> >George
> >> >Afana Electronics
> >> >Moreno Valley, CA
> >> >
> >> >----- Original Message -----
> >> >From: "LeRoy Westlund" <llw@xxxxxxxxxx>
> >> >To: <techassist@xxxxxxxxxxxxx>
> >> >Sent: Thursday, March 27, 2003 7:07 PM
> >> >Subject: [TechAssist] Re: Philips TS2744C103 chassis 27B8 Micro-p
> >problem.
> >> >
> >> >
> >> >>
> >> >> OK, Bob,
> >> >> Like you said,...back to basics.
> >> >> I have my +, and - 13 volts.
> >> >> I replaced the vertical IC with a part from Electronica # TDA9302H.
> >> >> D409, D445, R420, and R445, were also replaced. I have tripple
checked
> >> for
> >> >> bad connections, and open traces in and around the vertical IC.
> >> >> I have used the TDA9302H from Electronica before, with good results.
> >But,
> >> >> NO,..I didn't use the OEM part on that one. My vertical deflection
is
> >OK.
> >> >I
> >> >> have a full dark raster. When I turn up the screen control, it shows
> >Gray
> >> >> raster, with retrace lines. At the top there is about 1/2 inch, that
> is
> >> >MUCH
> >> >> brighter then the rest of the screen.
> >> >>
> >> >> I replaced the eprom (Twice) with an OEM part number 483520988527.
> >> >> I socketed the eprom, and when I remove it, the set works exactly
the
> >> >same.
> >> >> I tried all the reset proceedures that you sent me. NO change.
> >> >> Cannot enter the service mode, to check the corrupted parameters
that
> >you
> >> >> suggested (66, or 67).
> >> >>
> >> >> The CRT module has been repaired, by replacing one of the driver ICs
> >with
> >> >> part # TDA6106Q, from Electronica. Also had to replace the 10 ohm
> >> resistor
> >> >> R58, on the 200 volt line. The set has new H.O.T (BU2508DF) in it,
> and
> >> >also
> >> >> a new C432 (100@200).
> >> >>
> >> >> For now, I am going to leave the original Micro-p in it, since a new
> >one
> >> >is
> >> >> NLA anyway. Maybe someone will come up with an idea other then
> >replacing
> >> >it.
> >> >> One more note: The missing SMD (R321) has been replaced with a 510K
> >> >> resistor.
> >> >> Xytal Y321 dosn't seem to matter, if it is in the ckt or not. Set
> works
> >> >the
> >> >> same without it. That don't seem normal to me. Maybe it is bad.
> >> >>
> >> >> LLW
> >> >>
> >> >> LeRoy Westlund
> >> >> Westlund TV & Electronics " Walk tall,...Walk straight
> >> >> 93 North Main and look the world
> >> >> Centerfield, UT 84622-0087 right in the eye "
> >> >> Ph./Fax 435-528-3822
> >> >> mailto:LLW@xxxxxxxxxx
> >> >>
> >> >> -----Original Message-----
> >> >> From: Gemini Computer & TV <geminitv@xxxxxxxxxxxxxxxx>
> >> >> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> >> >> Date: Thursday, March 27, 2003 5:59 PM
> >> >> Subject: [TechAssist] Re: Philips TS2744C103 chassis 27B8 Micro-p
> >> problem.
> >> >>
> >> >>
> >> >> >
> >> >> >There is no R468 in this set. I cannot cross the 313501001321 to
any
> >> >> number.
> >> >> >You may have a defective or incorrect EEPROM which you stated in
your
> >> >> >original post that you have replaced so we need to know what part
> >number
> >> >> you
> >> >> >replaced it with. Usually if you do have a defective EEPROM, you
> >should
> >> >be
> >> >> >able to remove it and see if the problem goes away as a test.
Having
> >> said
> >> >> >that, it's time to go back to basics so let's verify we have the
plus
> >> and
> >> >> >minus 13 volts to the vertical. If so, replace the vertical IC with
> >the
> >> >> >original part# 483520988531 ONLY!!! If you are missing one or both
of
> >> the
> >> >+
> >> >> >or - 13 volts, check D409, D445, R420, and R445. Then let's see
where
> >we
> >> >> >stand. The 483520988525 which should be the proper micro for this
set
> >is
> >> >> NLA
> >> >> >with no sub listed.
> >> >> >
> >> >> >Bob Waterman, CET® #RI-28
> >> >> >Master Technician License #9109
> >> >> >Service Manager
> >> >> >Gemini Computer, TV, & Security Alarms
> >> >> >(508)695-7302
> >> >> >(508)695-7769 FAX
> >> >> >geminitv@xxxxxxxxxxxxxxxx
> >> >> >geminitv@xxxxxxx
> >> >> >www.geminicomputertvsecurityalarms.com
> >> >> >
> >> >> >----- Original Message -----
> >> >> >From: "LeRoy Westlund" <llw@xxxxxxxxxx>
> >> >> >To: <techassist@xxxxxxxxxxxxx>
> >> >> >Sent: Thursday, March 27, 2003 4:00 PM
> >> >> >Subject: [TechAssist] Re: Philips TS2744C103 chassis 27B8 Micro-p
> >> >problem.
> >> >> >
> >> >> >
> >> >> >>
> >> >> >> That's funny. I don't see an R468 in this set. It's not listed on
> >the
> >> >> >parts
> >> >> >> list, either.
> >> >> >>
> >> >> >> LLW
> >> >> >>
> >> >> >> LeRoy Westlund
> >> >> >> Westlund TV & Electronics " Walk tall,...Walk straight
> >> >> >> 93 North Main and look the
world
> >> >> >> Centerfield, UT 84622-0087 right in the eye "
> >> >> >> Ph./Fax 435-528-3822
> >> >> >> mailto:LLW@xxxxxxxxxx
> >> >> >>
> >> >> >> -----Original Message-----
> >> >> >> From: Tel-Tek Electronics <teltek3@xxxxxxxxxxxx>
> >> >> >> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> >> >> >> Date: Thursday, March 27, 2003 1:26 PM
> >> >> >> Subject: [TechAssist] Re: Philips TS2744C103 chassis 27B8 Micro-p
> >> >> problem.
> >> >> >>
> >> >> >>
> >> >> >> >
> >> >> >> >Also have a note here No Video..No OSD...Open R468 1ohm/12watt.
> >> >> >> >
> >> >> >> >-Ed-
> >> >> >> >----- Original Message -----
> >> >> >> >From: "LeRoy Westlund" <llw@xxxxxxxxxx>
> >> >> >> >To: <techassist@xxxxxxxxxxxxx>
> >> >> >> >Sent: Thursday, March 27, 2003 2:19 PM
> >> >> >> >Subject: [TechAssist] Re: Philips TS2744C103 chassis 27B8
Micro-p
> >> >> >problem.
> >> >> >> >
> >> >> >> >
> >> >> >> >>
> >> >> >> >> OK, Bob,
> >> >> >> >> You got me back to square one.
> >> >> >> >> I have had this set here for so long, that I forgot that I had
> >> >> replaced
> >> >> >> >the
> >> >> >> >> micro-p with one from a used chassis, that had 52 pins,
instead
> >of
> >> >42
> >> >> >> >pins.
> >> >> >> >> I put the original 42 pin IC345 (313501001321) back in, and
now
> >> the
> >> >> >set
> >> >> >> >> turns on again.
> >> >> >> >> Now I'm back to my original problem, of NO video, and NO OSD.
If
> >I
> >> >> turn
> >> >> >> up
> >> >> >> >> the screen, I get retrace lines, so I know I don't have a
> >vertical
> >> >> >> >deflected
> >> >> >> >> beam problem.
> >> >> >> >> I also, have replaced IC271, and rebuilt the CRT board, and
> >> replaced
> >> >> >the
> >> >> >> >> Eprom.(which is socketed). Works the same, with or without the
> >> Eprom
> >> >> >> >> installed.
> >> >> >> >> Do you think it is a good idea to order the correct Miicro-p ?
> >> >> >> >> The number on the original IC345 is 313501001321. Is that the
> new
> >> >> >number
> >> >> >> >for
> >> >> >> >> 483520988525 ?
> >> >> >> >>
> >> >> >> >> Regards,
> >> >> >> >> LLW
> >> >> >> >>
> >> >> >> >> LeRoy Westlund
> >> >> >> >> Westlund TV & Electronics " Walk tall,...Walk straight
> >> >> >> >> 93 North Main and look the
> >world
> >> >> >> >> Centerfield, UT 84622-0087 right in the eye "
> >> >> >> >> Ph./Fax 435-528-3822
> >> >> >> >> mailto:LLW@xxxxxxxxxx
> >> >> >> >>
> >> >> >> >> -----Original Message-----
> >> >> >> >> From: Gemini Computer & TV <geminitv@xxxxxxxxxxxxxxxx>
> >> >> >> >> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> >> >> >> >> Date: Thursday, March 27, 2003 7:53 AM
> >> >> >> >> Subject: [TechAssist] Re: Philips TS2744C103 chassis 27B8
> Micro-p
> >> >> >> problem.
> >> >> >> >>
> >> >> >> >>
> >> >> >> >> >
> >> >> >> >> >First of all you have a non-commercial model (90 day labor
> >> >warranty).
> >> >> >> >> >Usually a commercial model will have a model number that
begins
> >> >with
> >> >> >> "PC"
> >> >> >> >> or
> >> >> >> >> >"PL" such as a PC7225C which is also a B7/B8 chassis series
and
> >> has
> >> >a
> >> >> >1
> >> >> >> >> year
> >> >> >> >> >labor warranty. On that note, Force 32 lists the following 2
> >part
> >> >> >> numbers
> >> >> >> >> >for IC345 as follows:
> >> >> >> >> >
> >> >> >> >> >483520988523 (LC864132)(subs to 313501003611) for commercial
> >> >models.
> >> >> >> >> >483520988525 (LC864725A-5F34) for non-commercial models. This
> >part
> >> >> >shows
> >> >> >> >as
> >> >> >> >> >an inactive part number on the Philips Parts Store website
with
> >no
> >> >> sub
> >> >> >> >> >listed.
> >> >> >> >> >
> >> >> >> >> >Now the 613077-2 number (6130770002) subs to 483520988458
which
> >> >subs
> >> >> >to
> >> >> >> >> >483520988384 and is an active part number.
> >> >> >> >> >
> >> >> >> >> >R321 is listed as a 510K, 1/10 watt resistor, part#
> 483511127053
> >> >for
> >> >> >> >> >non-commercial models and you are correct about 0 ohms for
> >> >commercial
> >> >> >> >> >models.
> >> >> >> >> >
> >> >> >> >> >And finally the EEPROM (IC346) is listed as an ST24C04FB1,
> >Philips
> >> >> >part
> >> >> >> >> >number 483520988527.
> >> >> >> >> >
> >> >> >> >> >Bob Waterman, CET® #RI-28
> >> >> >> >> >Master Technician License #9109
> >> >> >> >> >Service Manager
> >> >> >> >> >Gemini Computer, TV, & Security Alarms
> >> >> >> >> >(508)695-7302
> >> >> >> >> >(508)695-7769 FAX
> >> >> >> >> >geminitv@xxxxxxxxxxxxxxxx
> >> >> >> >> >geminitv@xxxxxxx
> >> >> >> >> >www.geminicomputertvsecurityalarms.com
> >> >> >> >> >
> >> >> >> >> >----- Original Message -----
> >> >> >> >> >From: "LeRoy Westlund" <llw@xxxxxxxxxx>
> >> >> >> >> >To: <techassist@xxxxxxxxxxxxx>
> >> >> >> >> >Sent: Wednesday, March 26, 2003 8:50 PM
> >> >> >> >> >Subject: [TechAssist] Re: Philips TS2744C103 chassis 27B8
> >Micro-p
> >> >> >> >problem.
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> >>
> >> >> >> >> >> Bob, and All;
> >> >> >> >> >> I'm a little confused.Could you check out the part numbers
> for
> >> me
> >> >?
> >> >> >> >> >> IC345
> >> >> >> >> >> # on part is 613077-2 (52 pins).
> >> >> >> >> >> # I ordered from number on microfitche 483520988523
> >> >> >> >> >> # they sent me number 313501003611 (52 pins).
> >> >> >> >> >> (These were for Non-commericial models).
> >> >> >> >> >> Is that the right part number for my set ?
> >> >> >> >> >>
> >> >> >> >> >> Also, there is a SMD missing. It is R321. (For
> Non-commericial
> >> >> sets)
> >> >> >> it
> >> >> >> >> >says
> >> >> >> >> >> to use 510K part # 483511127056. ( 0 ohms for Commericial
> >> units).
> >> >> >> >> >> Am I right to assume this is a Non-commericial unit ? How
can
> >I
> >> >> tell
> >> >> >?
> >> >> >> >> >>
> >> >> >> >> >> LLW
> >> >> >> >> >>
> >> >> >> >> >> LeRoy Westlund
> >> >> >> >> >> Westlund TV & Electronics " Walk tall,...Walk
straight
> >> >> >> >> >> 93 North Main and look
the
> >> >world
> >> >> >> >> >> Centerfield, UT 84622-0087 right in the eye
"
> >> >> >> >> >> Ph./Fax 435-528-3822
> >> >> >> >> >> mailto:LLW@xxxxxxxxxx
> >> >> >> >> >>
> >> >> >> >> >> -----Original Message-----
> >> >> >> >> >> From: Gemini Computer & TV <geminitv@xxxxxxxxxxxxxxxx>
> >> >> >> >> >> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> >> >> >> >> >> Date: Wednesday, March 26, 2003 2:48 PM
> >> >> >> >> >> Subject: [TechAssist] Re: Philips TS2744C103 chassis 27B8
> >> Micro-p
> >> >> >> >> problem.
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >> >
> >> >> >> >> >> >Well in that case, it is probably one of three things.
> Either
> >> >you
> >> >> >> have
> >> >> >> >a
> >> >> >> >> >> new
> >> >> >> >> >> >defective micro, the wrong replacement micro, or it is not
> >> >> >installed
> >> >> >> >> >> >properly. Can you reinstall the original micro and see if
it
> >is
> >> >> >still
> >> >> >> >> >dead?
> >> >> >> >> >> >
> >> >> >> >> >> >Bob Waterman, CET® #RI-28
> >> >> >> >> >> >Master Technician License #9109
> >> >> >> >> >> >Service Manager
> >> >> >> >> >> >Gemini Computer, TV, & Security Alarms
> >> >> >> >> >> >(508)695-7302
> >> >> >> >> >> >(508)695-7769 FAX
> >> >> >> >> >> >geminitv@xxxxxxxxxxxxxxxx
> >> >> >> >> >> >geminitv@xxxxxxx
> >> >> >> >> >> >www.geminicomputertvsecurityalarms.com
> >> >> >> >> >> >
> >> >> >> >> >> >----- Original Message -----
> >> >> >> >> >> >From: "LeRoy Westlund" <llw@xxxxxxxxxx>
> >> >> >> >> >> >To: <techassist@xxxxxxxxxxxxx>
> >> >> >> >> >> >Sent: Wednesday, March 26, 2003 4:39 PM
> >> >> >> >> >> >Subject: [TechAssist] Re: Philips TS2744C103 chassis 27B8
> >> >Micro-p
> >> >> >> >> >problem.
> >> >> >> >> >> >
> >> >> >> >> >> >
> >> >> >> >> >> >>
> >> >> >> >> >> >> No, Bob. I have all these fixes, already.
> >> >> >> >> >> >> My set is "dead" at the present time, and you have to be
> >able
> >> >to
> >> >> >at
> >> >> >> >> >least
> >> >> >> >> >> >> turn it on, before performing some of these proceedures.
> It
> >> >> >turned
> >> >> >> >on
> >> >> >> >> >> >> "before" I changed the micro-p.
> >> >> >> >> >> >> I would give up on this one,...but, it has become a life
> >long
> >> >> >dream
> >> >> >> >of
> >> >> >> >> >> >mine
> >> >> >> >> >> >> to fix it.
> >> >> >> >> >> >> The set belongs to me now, so it has become a matter of
> >> >> >principle,
> >> >> >> >> >> instead
> >> >> >> >> >> >> of profit.
> >> >> >> >> >> >>
> >> >> >> >> >> >> Regards,
> >> >> >> >> >> >> LLW
> >> >> >> >> >> >>
> >> >> >> >> >> >> LeRoy Westlund
> >> >> >> >> >> >> Westlund TV & Electronics " Walk tall,...Walk
> >straight
> >> >> >> >> >> >> 93 North Main and look
> >the
> >> >> >world
> >> >> >> >> >> >> Centerfield, UT 84622-0087 right in the
> eye
> >"
> >> >> >> >> >> >> Ph./Fax 435-528-3822
> >> >> >> >> >> >> mailto:LLW@xxxxxxxxxx
> >> >> >> >> >> >>
> >> >> >> >> >> >> -----Original Message-----
> >> >> >> >> >> >> From: Gemini Computer & TV <geminitv@xxxxxxxxxxxxxxxx>
> >> >> >> >> >> >> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> >> >> >> >> >> >> Date: Wednesday, March 26, 2003 2:09 PM
> >> >> >> >> >> >> Subject: [TechAssist] Re: Philips TS2744C103 chassis
27B8
> >> >> Micro-p
> >> >> >> >> >> problem.
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >Perhaps this may have been it:
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >Symptom: High Voltage (EHT) remains but there is no:
> >> >> >> >> >> >> >OSD - Menu
> >> >> >> >> >> >> >Video - Raster
> >> >> >> >> >> >> >Sound
> >> >> >> >> >> >> >There may be a faint line across the top of the CRT.
> >> >> >> >> >> >> >Cause: Information in the EEPROM (IC346) is incorrect.
> >> This
> >> >> >> >results
> >> >> >> >> >in
> >> >> >> >> >> >> >deadlock of the BIMOS Signal Processor. Caused in one
> >> >instance
> >> >> >> >when
> >> >> >> >> >> >> >Register 66 on Service Page A was adjusted to FF and
> >stored.
> >> >> >> >> >> >> >Cure: If in the Service Mode exit by pressing 9, then
+
> >> >> (volume
> >> >> >> >up).
> >> >> >> >> >> >The
> >> >> >> >> >> >> >set will shut off. Power on and enter the Service Mode
> by
> >> >> >> >> >> 06-25-95-MENU.
> >> >> >> >> >> >> >Press A/CH (Surf). ROM defaults will be written to the
> >> >EEPROM
> >> >> >and
> >> >> >> >> >> normal
> >> >> >> >> >> >> >operation will come back.
> >> >> >> >> >> >> >Note: At this point all items in the Service Mode will
> >have
> >> >to
> >> >> >> >> >adjusted
> >> >> >> >> >> >> for
> >> >> >> >> >> >> >proper operation.
> >> >> >> >> >> >> >----------------------------------
> >> >> >> >> >> >> >Symptom: There may be no raster, no video (slick
raster)
> >or
> >> >> only
> >> >> >> >the
> >> >> >> >> >top
> >> >> >> >> >> >> >half of the raster.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >Cause: Corrupted value in EEPROM memory, IC346,
register
> >67
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >Cure: TO AVOID CHANGING ALL MEMORY LOCATIONS:
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >1. With set unplugged from AC ground pin 6 of memory IC
> >> >> (IC346).
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >2. Power set and turn on. Video and/or raster should be
> >> >> >restored.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >3. Enter Service Mode, first page.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >4. With cursor up/down select register 67.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >5. With right/left cursor set value to 1D.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >6. While on remove ground from pin 6 of IC346.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >7. Press MENU to save. Press 9, press cursor right, set
> >will
> >> >> >turn
> >> >> >> >> off.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >8. Break AC power for 10 seconds to insure value is
> saved.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >9. Restore AC power and check operation.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >If full video is restored in step 2 but readjustment of
> >> >> register
> >> >> >> 67
> >> >> >> >> >does
> >> >> >> >> >> >> not
> >> >> >> >> >> >> >resolve the problem do the following:
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >A. Perform steps #1, #2 and #3 above.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >B. While in the Service Mode record all displayed
values
> >in
> >> >> >pages
> >> >> >> B
> >> >> >> >> >> >through
> >> >> >> >> >> >> >H.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >C. Return to page A (press 1) & press A/CH on remote to
> >> write
> >> >> >> >> defaults
> >> >> >> >> >> >from
> >> >> >> >> >> >> >the micro-P to the memory IC.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >D. Complete steps 7, 8 and 9 above.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >E. Turn on set, enter Service Mode and reset pages B
> >through
> >> >H
> >> >> >to
> >> >> >> >the
> >> >> >> >> >> >> >recorded values in Step B.
> >> >> >> >> >> >> >
> >> >> >> >> >> >>
> >> >> >----------------------------------------------------------------
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >Bob Waterman, CET® #RI-28
> >> >> >> >> >> >> >Master Technician License #9109
> >> >> >> >> >> >> >Service Manager
> >> >> >> >> >> >> >Gemini Computer, TV, & Security Alarms
> >> >> >> >> >> >> >(508)695-7302
> >> >> >> >> >> >> >(508)695-7769 FAX
> >> >> >> >> >> >> >geminitv@xxxxxxxxxxxxxxxx
> >> >> >> >> >> >> >geminitv@xxxxxxx
> >> >> >> >> >> >> >www.geminicomputertvsecurityalarms.com
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >----- Original Message -----
> >> >> >> >> >> >> >From: "LeRoy Westlund" <llw@xxxxxxxxxx>
> >> >> >> >> >> >> >To: "TechAssist" <techassist@xxxxxxxxxxxxx>
> >> >> >> >> >> >> >Sent: Wednesday, March 26, 2003 3:45 PM
> >> >> >> >> >> >> >Subject: [TechAssist] Philips TS2744C103 chassis 27B8
> >> Micro-p
> >> >> >> >> problem.
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> Hi,
> >> >> >> >> >> >> >> I have had multiple problems with this set. I
repaired
> >the
> >> >> >> >typical
> >> >> >> >> >> >> >vertical
> >> >> >> >> >> >> >> problem, plus the typical problems associated with
the
> >CRT
> >> >> >> board,
> >> >> >> >> >etc.
> >> >> >> >> >> >> >> I had everything working, except still NO video. I
> >> replaced
> >> >> >the
> >> >> >> >> >EPROM
> >> >> >> >> >> >> with
> >> >> >> >> >> >> >> no help, and as a last resort, I decided to change
the
> >> >> >micro-p.
> >> >> >> >> >> >> >> My new problem: After replacing the micro-p, I can't
> >get
> >> >the
> >> >> >> set
> >> >> >> >> to
> >> >> >> >> >> >even
> >> >> >> >> >> >> >> turn on. I did a nice clean solder job, and checked
my
> >> >> >> >> >> >> >> work,...but,....NOTHING.
> >> >> >> >> >> >> >> I remember seeing a post a while back, that had this
> >same
> >> >> >> >symptom,
> >> >> >> >> >and
> >> >> >> >> >> >a
> >> >> >> >> >> >> >> fix,..but, I can't find it. I thought I had saved it.
> >> >> >> >> >> >> >> Can anyone help me with this problem ?
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> Thanks for your time,
> >> >> >> >> >> >> >> LLW
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> LeRoy Westlund
> >> >> >> >> >> >> >> Westlund TV & Electronics " Walk tall,...Walk
> >> >straight
> >> >> >> >> >> >> >> 93 North Main and
> look
> >> >the
> >> >> >> >world
> >> >> >> >> >> >> >> Centerfield, UT 84622-0087 right in
the
> >> eye
> >> >"
> >> >> >> >> >> >> >> Ph./Fax 435-528-3822
> >> >> >> >> >> >> >> mailto:LLW@xxxxxxxxxx
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>>*********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> *
> >> >> >> >> >> >> *
> >> >> >> >> >> >> >*
> >> >> >> >> >> >> >> Submit A Repair Tip Here, or Change/Remove your Email
> >> >> Address:
> >> >> >> >> >> >> >>
http://www.tech-assist.org/secure/tip/main.html
> >> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>>*********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> *
> >> >> >> >> >> >> *
> >> >> >> >> >> >> >*
> >> >> >> >> >> >> >> For automatic password retrieval 24 hours a day, go
to:
> >> >> >> >> >> >> >> http://www.tech-assist.org and select "Lost your
Login
> >> >> >Info?".
> >> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>>*********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> *
> >> >> >> >> >> >> *
> >> >> >> >> >> >> >*
> >> >> >> >> >> >> >> Access the archives here:
> >> >> >> >> >> >> >> //www.freelists.org/archives/techassist/
> >> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>>*********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> *
> >> >> >> >> >> >> *
> >> >> >> >> >> >> >*
> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >
> >> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>>*********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> *
> >> >> >> >> >> >> **
> >> >> >> >> >> >> >Submit A Repair Tip Here, or Change/Remove your Email
> >> >Address:
> >> >> >> >> >> >> > http://www.tech-assist.org/secure/tip/main.html
> >> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>>*********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> *
> >> >> >> >> >> >> **
> >> >> >> >> >> >> >For automatic password retrieval 24 hours a day, go to:
> >> >> >> >> >> >> >http://www.tech-assist.org and select "Lost your Login
> >> >Info?".
> >> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>>*********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> *
> >> >> >> >> >> >> **
> >> >> >> >> >> >> >Access the archives here:
> >> >> >> >> >> >> >//www.freelists.org/archives/techassist/
> >> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>>*********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> *
> >> >> >> >> >> >> **
> >> >> >> >> >> >> >
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>**********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> *
> >> >> >> >> >> >*
> >> >> >> >> >> >> Submit A Repair Tip Here, or Change/Remove your Email
> >> Address:
> >> >> >> >> >> >> http://www.tech-assist.org/secure/tip/main.html
> >> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>**********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> *
> >> >> >> >> >> >*
> >> >> >> >> >> >> For automatic password retrieval 24 hours a day, go to:
> >> >> >> >> >> >> http://www.tech-assist.org and select "Lost your Login
> >> >Info?".
> >> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>**********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> *
> >> >> >> >> >> >*
> >> >> >> >> >> >> Access the archives here:
> >> >> >> >> >> >> //www.freelists.org/archives/techassist/
> >> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>**********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> *
> >> >> >> >> >> >*
> >> >> >> >> >> >>
> >> >> >> >> >> >
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>**********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> **
> >> >> >> >> >> >Submit A Repair Tip Here, or Change/Remove your Email
> >Address:
> >> >> >> >> >> > http://www.tech-assist.org/secure/tip/main.html
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>**********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> **
> >> >> >> >> >> >For automatic password retrieval 24 hours a day, go to:
> >> >> >> >> >> >http://www.tech-assist.org and select "Lost your Login
> >Info?".
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>**********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> **
> >> >> >> >> >> >Access the archives here:
> >> >> >> >> >> >//www.freelists.org/archives/techassist/
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>>**********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >> **
> >> >> >> >> >> >
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>***********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >*
> >> >> >> >> >> Submit A Repair Tip Here, or Change/Remove your Email
> Address:
> >> >> >> >> >> http://www.tech-assist.org/secure/tip/main.html
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>***********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >*
> >> >> >> >> >> For automatic password retrieval 24 hours a day, go to:
> >> >> >> >> >> http://www.tech-assist.org and select "Lost your Login
> >Info?".
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>***********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >*
> >> >> >> >> >> Access the archives here:
> >> >> >> >> >> //www.freelists.org/archives/techassist/
> >> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>***********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> *
> >> >> >> >> >*
> >> >> >> >> >>
> >> >> >> >> >
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>***********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> **
> >> >> >> >> >Submit A Repair Tip Here, or Change/Remove your Email
Address:
> >> >> >> >> > http://www.tech-assist.org/secure/tip/main.html
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>***********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> **
> >> >> >> >> >For automatic password retrieval 24 hours a day, go to:
> >> >> >> >> >http://www.tech-assist.org and select "Lost your Login
Info?".
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>***********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> **
> >> >> >> >> >Access the archives here:
> >> >> >> >> >//www.freelists.org/archives/techassist/
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>>***********************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >> **
> >> >> >> >> >
> >> >> >> >>
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>************************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >*
> >> >> >> >> Submit A Repair Tip Here, or Change/Remove your Email Address:
> >> >> >> >> http://www.tech-assist.org/secure/tip/main.html
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>************************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >*
> >> >> >> >> For automatic password retrieval 24 hours a day, go to:
> >> >> >> >> http://www.tech-assist.org and select "Lost your Login
Info?".
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>************************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >*
> >> >> >> >> Access the archives here:
> >> >> >> >> //www.freelists.org/archives/techassist/
> >> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>>************************************************************************
> *
> >> *
> >> >> *
> >> >> >> *
> >> >> >> >*
> >> >> >> >>
> >> >> >> >
> >> >> >>
> >> >>
> >>
>
>>>>************************************************************************
> *
> >> *
> >> >> *
> >> >> >> **
> >> >> >> >Submit A Repair Tip Here, or Change/Remove your Email Address:
> >> >> >> > http://www.tech-assist.org/secure/tip/main.html
> >> >> >>
> >> >>
> >>
>
>>>>************************************************************************
> *
> >> *
> >> >> *
> >> >> >> **
> >> >> >> >For automatic password retrieval 24 hours a day, go to:
> >> >> >> >http://www.tech-assist.org and select "Lost your Login Info?".
> >> >> >>
> >> >>
> >>
>
>>>>************************************************************************
> *
> >> *
> >> >> *
> >> >> >> **
> >> >> >> >Access the archives here:
> >> >> >> >//www.freelists.org/archives/techassist/
> >> >> >>
> >> >>
> >>
>
>>>>************************************************************************
> *
> >> *
> >> >> *
> >> >> >> **
> >> >> >> >
> >> >> >>
> >> >> >>
> >> >>
> >>
>
>>>*************************************************************************
> *
> >> *
> >> >> *
> >> >> >*
> >> >> >> Submit A Repair Tip Here, or Change/Remove your Email Address:
> >> >> >> http://www.tech-assist.org/secure/tip/main.html
> >> >> >>
> >> >>
> >>
>
>>>*************************************************************************
> *
> >> *
> >> >> *
> >> >> >*
> >> >> >> For automatic password retrieval 24 hours a day, go to:
> >> >> >> http://www.tech-assist.org and select "Lost your Login Info?".
> >> >> >>
> >> >>
> >>
>
>>>*************************************************************************
> *
> >> *
> >> >> *
> >> >> >*
> >> >> >> Access the archives here:
> >> >> >> //www.freelists.org/archives/techassist/
> >> >> >>
> >> >>
> >>
>
>>>*************************************************************************
> *
> >> *
> >> >> *
> >> >> >*
> >> >> >>
> >> >> >
> >> >>
> >>
>
>>>*************************************************************************
> *
> >> *
> >> >> **
> >> >> >Submit A Repair Tip Here, or Change/Remove your Email Address:
> >> >> > http://www.tech-assist.org/secure/tip/main.html
> >> >>
> >>
>
>>>*************************************************************************
> *
> >> *
> >> >> **
> >> >> >For automatic password retrieval 24 hours a day, go to:
> >> >> >http://www.tech-assist.org and select "Lost your Login Info?".
> >> >>
> >>
>
>>>*************************************************************************
> *
> >> *
> >> >> **
> >> >> >Access the archives here:
> >> >> >//www.freelists.org/archives/techassist/
> >> >>
> >>
>
>>>*************************************************************************
> *
> >> *
> >> >> **
> >> >> >
> >> >>
> >> >>
> >>
>
>>**************************************************************************
> *
> >> *
> >> >*
> >> >> Submit A Repair Tip Here, or Change/Remove your Email Address:
> >> >> http://www.tech-assist.org/secure/tip/main.html
> >> >>
> >>
>
>>**************************************************************************
> *
> >> *
> >> >*
> >> >> For automatic password retrieval 24 hours a day, go to:
> >> >> http://www.tech-assist.org and select "Lost your Login Info?".
> >> >>
> >>
>
>>**************************************************************************
> *
> >> *
> >> >*
> >> >> Access the archives here:
> >> >> //www.freelists.org/archives/techassist/
> >> >>
> >>
>
>>**************************************************************************
> *
> >> *
> >> >*
> >> >
> >>
>
>>**************************************************************************
> *
> >> **
> >> >Submit A Repair Tip Here, or Change/Remove your Email Address:
> >> > http://www.tech-assist.org/secure/tip/main.html
> >>
>
>>**************************************************************************
> *
> >> **
> >> >For automatic password retrieval 24 hours a day, go to:
> >> >http://www.tech-assist.org and select "Lost your Login Info?".
> >>
>
>>**************************************************************************
> *
> >> **
> >> >Access the archives here:
> >> >//www.freelists.org/archives/techassist/
> >>
>
>>**************************************************************************
> *
> >> **
> >> >
> >>
> >>
>
>***************************************************************************
> *
> >*
> >> Submit A Repair Tip Here, or Change/Remove your Email Address:
> >> http://www.tech-assist.org/secure/tip/main.html
> >>
>
>***************************************************************************
> *
> >*
> >> For automatic password retrieval 24 hours a day, go to:
> >> http://www.tech-assist.org and select "Lost your Login Info?".
> >>
>
>***************************************************************************
> *
> >*
> >> Access the archives here:
> >> //www.freelists.org/archives/techassist/
> >>
>
>***************************************************************************
> *
> >*
> >>
> >
>
>***************************************************************************
> **
> >Submit A Repair Tip Here, or Change/Remove your Email Address:
> > http://www.tech-assist.org/secure/tip/main.html
>
>***************************************************************************
> **
> >For automatic password retrieval 24 hours a day, go to:
> >http://www.tech-assist.org and select "Lost your Login Info?".
>
>***************************************************************************
> **
> >Access the archives here:
> >//www.freelists.org/archives/techassist/
>
>***************************************************************************
> **
> >
>
>
****************************************************************************
*
> Add a known good Tech line number or part supplier in The
> Tech Address Book.
> http://www.tech-assist.org/secure/tip/contact.html
>
****************************************************************************
*
> Submit A Repair Tip Here, or Change/Remove your Email Address:
> http://www.tech-assist.org/secure/tip/main.html
>
****************************************************************************
*
> For automatic password retrieval 24 hours a day, go to:
> http://www.tech-assist.org and select "Lost your Login Info?".
>
****************************************************************************
*
> Access the archives here:
> //www.freelists.org/archives/techassist/
>
****************************************************************************
*
>
*****************************************************************************
The Tech Address Book:
http://www.tech-assist.org/secure/tip/contact.html
Add a Repair Tip Here, or Change/Remove your Email Address:
http://www.tech-assist.org/secure/tip/main.html
Lost Password:
http://www.tech-assist.org and select "Lost your Login Info?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
