[TechAssist] Re: RCA F32672SB , Chassis # CTC 187 CJ3 , DEAD

  • From: "Jerry" <geiting@xxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Sun, 15 Dec 2002 12:35:21 -0500

Is the power supply working?  There should be appx. +150 volts on the
collector of the HOT in standby mode and the +12 and +5  sources should also
be present.  Have you repaired the tuner wrap ground connections?  The
EEPROM may be corrupted.  A good test of that is to scope the clock and data
pins of the EEPROM.  If you see a continuous pulse train on them when you
press the power button, then it is probably is corrupt. If you have chipper
check, you can reinialize it, if not, you will have to replace it and
realign the chassis.

Jerry Eiting  geiting@xxxxxxxxxx
Christians Electronic Service
Piqua, Ohio

----- Original Message -----
From: "Nova Service Center" <techassist@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, December 15, 2002 11:23 AM
Subject: [TechAssist] RCA F32672SB , Chassis # CTC 187 CJ3 , DEAD


> Hi
>
> This RCA tv is dead , I found  bad flyback transformer , bad Horizontal
output transistor ( BUH 517 ), bad regulator ( STK 730-150 ) and an open
aresistor. I replced all with new ones. TV still does not turn on. Any Idea
? Or service manual ?
>
> Nava Service Center
> PO Box 2515
> Gaithersburg, MD 20886
>  240-632-2994
>
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