[TechAssist] Re: 27R411T RCA TV Chasssis ITC008FHM
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 28 Apr 2005 08:13:30 -0400
What does the waveform look like at the HOT collector?
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "Eric Manuel" <tvman@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, April 28, 2005 7:43 AM
Subject: [TechAssist] Re: 27R411T RCA TV Chasssis ITC008FHM
> Hi Carl a tip here check it out Eric
>
> RCA ITC008FCS SHUTS DOWN IMMEDIATELY AFTER TURN ON REPLACE TL062
>
>
> Eric
> E M Electronics
> Deer Lake Nfld
> Canada
> tvman@xxxxxxxxxxxxxxx
>
> CARL HURT wrote:
>> I'm having problems with this chassis, It goes into shutdown in about a
>> second.
>> The shutdown leg of IC IV001 pin 36 EHT is 2.3 volts sams says it should
>> be
>> 2.00 volts. it should take 3.6 volts to go into shutdown.
>> I assume it's not in overvoltage shutdown.
>>
>> I removed MAV board. still shutsdown.
>>
>> I'm Removing tuner tomorrow.
>>
>> The IPO30 regulator has all the correct voltages except pin 1 which is 11
>> volts. This is high because of shutdown , I think.
>>
>> All power supply voltages are correct.
>>
>> I changed the eprom.
>>
>> Drive signal at Hor Driver transformer looks normal.
>>
>> All diodes in secondary of flyback look good. No shorts
>>
>> Any help or suggestions welcome.
>>
>> Carl Hurt Electronics
>> 3513 Budreau Av.
>> Savannah, Ga, 31408
>> 912-964-2275
>> churt-savannah@xxxxxxxxxxxxxxxx
>>
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