[TechAssist] Re: Proscan ctc169bj5 dead
- From: "Tomlee" <t8872695@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 23 Jan 2002 19:26:54 -0800
Hello Perry.
I am sorry that I tell something wrong. Actually the tv has good B+ 160v.
But When I push power button. I see voltage at pin 38 of Microcontrol goes
up a bit about one volt then goes down. so q4705 never turn on and q4702
never turn on. So
it miss source #3 12v. and some sources come from q4703.I do not know it
is protected or power supply fails by itself.
thank for help. Dang TVCR
----- Original Message -----
From: "Electric Medic" <info@xxxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, January 22, 2002 9:53 PM
Subject: [TechAssist] Re: Proscan ctc169bj5 dead
>
> Check these things:
> Change C4108 which causes high bias on Q4101 (200165)
> and its failure. Also replace U4101(200419). Do not sub Chopper or IC.
Done
> 100's of these, if you do not replace IC and C4108, the set will recall in
> most cases. Also change C4118 and C4102 The main thing to check is
> your B+ in stand by which all of the above caps, if defective, will go as
> high as 200 volts (it's supposed to be approximately 140 volts)
>
> Perry Bower
> Electric Medic
> "It's Cheaper to Keep Her"
> 3850 Washington Road Suite 5b
> Martinez, Georgia 30907
> Phone: 706-8MEDIC4 (863-3424)
> Phone: 706-863-3474
> Fax: 706-863-2316
> Website: www.electricmedic.com
> mailto:info@xxxxxxxxxxxxxxxxx
> "WE REPAIR WITH CARE"
> More Info: www.augusta-ga.bbb.org/report.html?compid=6001278&national=y
>
> Factory Trained Authorized Service Center For: Fisher, GE, KEC/KTV,
Konka,
> Mitsubishi, Panasonic, Philips Magnavox, Pioneer, ProSCAN, RCA, Samsung,
> Sanyo, Sharp, SONY, Technics, Zenith
>
> Provide Extended care for: AON, Circuit City, GE Contracts, Glass Agency,
> Philips Contracts, NEW, Rex
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Tomlee
> Sent: Tuesday, January 22, 2002 11:20 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Proscan ctc169bj5 dead
>
>
>
> Hello techs.
> I am working with proscan CTC169BJ5. it is dead .Q4101 is not working.
> suspect ic 4101 fails. Is there any tips for this problem.TIA.I am not
> familiar with this brand TV.
> Dang TVCR
>
> ------------------------------------------
> Make your TechAssist database better!
> Submit Repair Tips here: http://www.tech-assist.org/secure/tip/
> ------------------------------------------
> To UNSUBSCRIBE your email address, click here:
> mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe
> Or send a BLANK email with unsubscribe in the
> SUBJECT field to the address above.
>
> ------------------------------------------
> Make your TechAssist database better!
> Submit Repair Tips here: http://www.tech-assist.org/secure/tip/
> ------------------------------------------
> To UNSUBSCRIBE your email address, click here:
> mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe
> Or send a BLANK email with unsubscribe in the
> SUBJECT field to the address above.
>
------------------------------------------
Make your TechAssist database better!
Submit Repair Tips here: http://www.tech-assist.org/secure/tip/
------------------------------------------
To UNSUBSCRIBE your email address, click here:
mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe
Or send a BLANK email with unsubscribe in the
SUBJECT field to the address above.
Other related posts:
