[TechAssist] Re: F8 Chassis Dead - Relay clicks 5 times?
- From: "George" <grndmstrg@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 3 Jan 2005 20:30:25 -0800
Oops, I reset it after I opened window, should be ok this time.
George
Afana Electronics
Moreno Valley, CA
----- Original Message -----
From: "Dan Garris" <dgarris@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, January 03, 2005 8:19 PM
Subject: [TechAssist] Re: F8 Chassis Dead - Relay clicks 5 times?
> Also I replaced the Yoke, and I tried turning down the Screen voltage
> some... Still same problem.
>
> Garris TV
> Dan Garris
> New Bern, NC
> dgarris@xxxxxxxxxxx
>
> ***************
>>
>>I Removed CRT board from pic tube, checked 1572, 1573 Pico fuses are OK,
>>zener
>>diodes 6510 & 6514 are ok, diode 6460 is ok, 2508 Main Filter Cap 470/200v
>>is ok, Leads are ok and NOT broken on the 7460 H.O.T., Checked HOT out of
>>circuit against a good one and was ok, Checked C2409 out of circuit and
>>was
>>OK, Replaced Vertical output again with another new STV9379FA just in case
>>I
>>had a bad new one in my stock, double checked for csj's and any cracks in
>>pcb, randomly checked all diodes and lo ohm resistors, (looking more like
>>the IHVT) still have same problem... Set will make first relay click pause
>>and click rapidly anywhere from 4 to 7 times (average about 5 times).
>>(dead
>>set) Anyone ran into this on the F8 NAP Chassis?
>>
>>Garris Radio & TV
>>Dan Garris
>>New Bern, NC
>>dgarris@xxxxxxxxxxx
>>
>>
>> >From: "Dan Garris" <dgarris@xxxxxxxxxxx>
>> >Reply-To: techassist@xxxxxxxxxxxxx
>> >To: techassist@xxxxxxxxxxxxx
>> >Subject: [TechAssist] F8 Chassis Dead - Relay clicks 5 times?
>> >Date: Mon, 03 Jan 2005 20:13:51 -0500
>> >
>> >What: 27" Color TV
>> >Make: Magnavox
>> >Model: MS2730 C221
>> >Chassis: 27F800-7583
>> >Made: March 2002
>> >
>> >Problem: When you hit the Power button on front, the relay "clicks"
>> >once
>> >then "clicks" FIVE times and quits. The Front LED lights "once" with the
>> >first relay click, then goes out, then lights once more again while the
>> >relay clicks five times quickly, then goes out for good. High voltage is
>> >not
>> >coming on.
>> >
>> >I replaced the STV9379FA Vertical output IC and checked R3488, R3486,
>> >R3487,
>> >R3491, R3492, all diodes in the area, checked all pico fuses, checked
>> >for
>> >cracks on the pcb and bad solder, replaced the common R3340 on the CRT
>> >board. This is sounded like the flyback. Anyone experiencing this
>> >before?
>> >
>> >Garris Radio & TV
>> >Dan Garris
>> >New Bern, NC
>> >dgarris@xxxxxxxxxxx
>> >
>> >
>> >
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