[TechAssist] Re: Zenith B32A34Z 9-2075 SHUTDOWN -FIXED
- From: Paul Medvetz <paulcho@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 29 May 2003 20:32:04 -0400
Thank you all for your quick response , It was the new IC, NTE=
brand
that was bad, You can't trust anything just because its=
new,Thanks
Again.
TV-Service-Company
Paul Medvetz
On Thu, 29 May 2003 14:14:05 -0400, Bob@Bobs tv wrote:
>Paul,
>Only problems I have seen on this model is the bad Vert chip,
>resistors and
>diodes and power supply.. But like all other Zeniths PS/ IC &=
100
>/ 22 m
>caps. You can try this, at turn on see if the filaments start=
to
>light or
>turn up the screen and see if you have vert sweep.. Also=
certain
>models
>Zeniths when they go into shutdown must be unplugged to reset
>micro.. OOO
>make sure your replacement chip is ok.. and did you check /=
replace
>caps in
>Vert? Anything is possible but fly's normally don't go bad when=
chip
>burns..
>example Samsung..
>
>Hope this helps..
>Bob,
>
>Bobs TV Worcester, ma
>
>woodman1@xxxxxxxx
>
>Main 508-853-1482
>Fax 508-853-1480
>----- Original Message -----
>From: <jose.aviles7@xxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Thursday, May 29, 2003 1:11 PM
>Subject: [TechAssist] Re: Zenith B32A34Z 9-2075 SHUTDOWN
>
>
>>Paul
>>
>>Check your standby voltages first. 169.7V at CX3407,130V at=
CX3420,
>>18V at
>>CX3424 and 5V at ICX3402. If this voltages are correct then=
check
>>Q3402
>>which is the power supply turn on transistor. If it check good=
then
>>ring
>or
>>replace your flyback. If you need any portion of the schematic=
let
>>me
>know.
>>
>>Jose
>>Aviles Computer & TV Repairs
>>508 Bingaman St
>>Reading, PA
>>Fax # 1-610-375-3766
>>----- Original Message -----
>>From: "Paul Medvetz" <paulcho@xxxxxxxx>
>>To: <techassist@xxxxxxxxxxxxx>
>>Sent: Thursday, May 29, 2003 4:55 AM
>>Subject: [TechAssist] Zenith B32A34Z 9-2075 SHUTDOWN
>>
>>
>>>We have a Zenith Model B32A34Z uses a 9-2075. Vertical=
output=3D
>>>IC2100
>>>burnt. As soon as you take the back off you can smell it ,=3D
>>>Replaced
>>>it now set goes into shut down instintly.You only hear audio=
for=3D
>>>a
>>>split second, high voltage comes up also.Power supply are=
134V
>>>at=3D
>>>
>>>D3410 17.23V at D3411 5V at ICX3402 The 26V from the FBT to=
the=3D
>>>vert
>>>out put is their till shutdown I did not find any other=
parts=3D
>>>shorted
>>>or burnt in vertical circuit.Any help wellcome.
>>>
>>>TV_Service-Company
>>>RR 3 Box 3550
>>>Hazleton,Pa.18202
>>>570-455-8868
>>>paulcho@xxxxxxxx
>>>
>>>
>>>
>>>
>>
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