[TechAssist] Re: sony tv KV-27S66 no video, led blinks nonstop

  • From: "Barry Scanlan" <scaninky@xxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Sun, 13 Jun 2004 20:49:15 -0500

I already tried that... I thought I had good HV but I checked and I only have 
12kv. I looked at the h. driver and signal looks good on the base and collector 
but... the base on Q502 the H. Out transistor it should be 23.4 p to p but I 
only have 6.9 P-P. Just not sure why... the collector should be 1.08 kv I have 
450v.

Barr Scanlan
Eng.
WEHT

---------- Original Message ----------------------------------
From: "al m" <ampm@xxxxxxx>
Reply-To: techassist@xxxxxxxxxxxxx
Date:  Sun, 13 Jun 2004 21:36:22 -0400

>You got a weak CRT. Turn up the screen a little and the video will come on.
>Al Marquardt
>ampm@xxxxxxx
>Al Marquardt Electronic Repair
>206 W Main
>Girardville Pa. 17935
>----- Original Message ----- 
>From: "Barry Scanlan" <scaninky@xxxxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Sunday, June 13, 2004 6:05 PM
>Subject: [TechAssist] sony tv KV-27S66 no video, led blinks nonstop
>
>
>> I'm  sorry if this message got sent twice... problem with this browser
>based email. Anyway, I have a Sony KV-27S66 that was blinking the led 2
>times....B+ OCP. After searching I found C641 was loading down the 12v
>line.... down to 6v. I also found Q601 and Q603 were leaky in the PS
>section. I replaced those also. The problem is, now with the new cap in
>place, I have audio but no video and the led just blinks non stop. When you
>first turn on the tv the relay kicks in and you can hear the HV and the
>audio comes up but the led just keeps blinking and the picture does not come
>on. I have checked all the voltages and they are fine except one....TP504,
>it should be 200v but I have 156 volts.  I have spent a lot of time on this
>and would appreciate a little help so I can move on....
>>
>> Thanks in advance,
>> Barry Scanlan
>> Engineering Dept.
>> WEHT-TV
>>
>> --------------------------------------------------------------------------
>---
>> Lost Password:
>> http://www.tech-assist.org  and select "Login Problems?".
>> Email Archives:
>> //www.freelists.org/archives/techassist/
>>
>>
>
>
>
>-----------------------------------------------------------------------------
>Lost Password:
>http://www.tech-assist.org  and select "Login Problems?".
>Email Archives:
>//www.freelists.org/archives/techassist/
>

-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org  and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/

Other related posts:

  1. Home
  2. techassist
  3. Archive
  4. 06-2004