[TechAssist] Re: Philips CTV MD1.1 lightning FIX
- From: "Stefaan Van Slycken" <vanslycken@xxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 10 Jun 2003 20:11:55 +0200
Apart from the bad contact mentioned earlier, i couldn't turn down the sound
(as i mentioned before). The problem was the sound processor, located under
a metal shield, MSP3400C. I replaced it with an MSP3410 i had from an other
TV (3410 has some more features i believe - see my other post for datasheet
URL) and it's fixed now.
Kind regards,
Stefaan Van Slycken
Van Slycken Elektro - Waasmunster, BE.
----- Original Message -----
From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, June 10, 2003 4:40 PM
Subject: [TechAssist] Re: Philips CTV MD1.1 lightning almost fixed
One euro = $1.16 or It takes $1.16 to buy one euro
Phillip R Hull STET
phil245@xxxxxxxxxxxxx
FAX 517--569-3075
----- Original Message -----
From: "Stefaan Van Slycken" <vanslycken@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, June 10, 2003 3:39 AM
Subject: [TechAssist] Re: Philips CTV MD1.1 lightning almost fixed
> Hi Al
> a Euro is about the same value as a $... so about 30$. I don't mind
buying
> schematics as long as i'm sure i can use them for more than one customer.
> But as we've never sold Philips TVs (I personally consider most of them
> crap), I don't want to buy one.
> BUT: I found the problem!! While measuring i found that a bad contact on
> diode 6423 was the cause. I pressed it while measuring with my scope
probe
> and the TV started for a second. Resoldered it and now it's working fine,
> so i guess it's not lightning-related at all!
> There is still *one problem*: the TV's sound volume won't mute. It's as
if
> there's a "basic volume" (pretty loud), and turning up the volume of the
set
> increases the volume even more. Any ideas?
>
> TIA
> Stefaan Van Slycken
> Van Slycken Elektro - Waasmunster, Belgium.
>
> ----- Original Message -----
> From: "Al L" <alleathe@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, June 09, 2003 5:45 PM
> Subject: [TechAssist] Re: Philips CTV MD1.1 lightning
>
>
> Sounds like the same customers in the USA!If they won't pay as much as a
> schematic costs,it means one of two things:You are getting screwed on the
> schematic,or you need new customers. Same thing happens here at times.
> How much is the schematic in US dollars?
> I had good luck in having a customer get a schematic free from
Philips,by
> telling him to whine about Philips encouraging a monopoly on service,and
> suggesting he was buying an other brand next time! Good luck. al
>
> Al Leatherman
> 224 Rt. 46
> Mine Hill, NJ. 07803
> 973-361-5796
> WWW.ALS-TV.NET
>
> ----- Original Message -----
> From: "Stefaan Van Slycken" <vanslycken@xxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, June 09, 2003 11:28 AM
> Subject: [TechAssist] Re: Philips CTV MD1.1 lightning
>
>
> > I could get a schematic, there are official philips dealers which sell
> them,
> > but they're about €30, and the customers don't want the repairs to cost
> that
> > much. I've never sold these sets, so to me it's not worth buying a
schem.
> > When there's no cable signal with PAL, you get snow. I'm having a tough
> > time with this one, first i suspected the PAL decoder (TDA8366 - find
> > datasheet on www.semiconductors.philips.com ) because i had no RGB
output
> > there, but it works fine in an other set.
> > Problem is, the only indications for voltages i find are +8 and +13, the
> > others just have measurement point numbers, so i'd like to have a schem
or
> a
> > service manual to compare them with. Tough sets to work on...
> >
> > TIA
> > Stefaan Van Slycken
> > Van Slycken Elektro, Waasmunster, BE.
> >
> > ----- Original Message -----
> > From: "Al L" <alleathe@xxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Monday, June 09, 2003 6:27 PM
> > Subject: [TechAssist] Re: Philips CTV MD1.1 lightning
> >
> >
> > Without a schematic, I would look for the 8 and 13 volt regs,but they
> might
> > be high because there is no load.Where would you get a schematic in
> > Belgium,if i may ask?Can you compare the crt voltages with a similar
> > crt?Thats where I would start for no brightness.
> > My advice may be all wrong if you use a different system there in
> > Belgium,since I once heard the screen is black in England with no
> signal,so
> > who knows?
> > May we have some details, as to size of set, and whether PAL system
is
> > high bright without signal,or black? Good luck.al
> >
> > Al Leatherman
> > 224 Rt. 46
> > Mine Hill, NJ. 07803
> > 973-361-5796
> > WWW.ALS-TV.NET
> >
> > ----- Original Message -----
> > From: "Stefaan Van Slycken" <vanslycken@xxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Monday, June 09, 2003 5:05 AM
> > Subject: [TechAssist] Philips CTV MD1.1 lightning
> >
> >
> > > This is a philips CTV set with MD1.1 chassis (which is a lot like
MD1.2,
> > MD2.1 and the like), struck by lightning. It was switched off at the
> time.
> > > I get a green light, Horizontal and Vertical signals are present but
> > screen stays black. I get a DC voltage on the R, G and B taps of the
CRT.
> > I put the tuner PCB (with IF, PAL decoder etc) in a good TV and it
worked
> > fine, so that's not the cause. I notice that the "+8V" and "+13V" are
11V
> > and 15V respectively. I have no schematic or other voltage indications
I
> > can refer to.
> > > Any help?
> > > TIA
> > > Stefaan Van Slycken
> > > Van Slycken Elektro - Waasmunster, Belgium.
> > >
> > > P.S. This is not the same set I posted about earlier.
> > >
> >
>
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