[TechAssist] Re: Zenith SE3191H, 9-700, 9-604..No audio

  • From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Fri, 17 Oct 2003 18:21:00 -0400

Bob,
Pin 8S4 was missing 39v..
I found IC801 shorted, 221-177...still available...
I checked the resistors and capacitors and they checked OK..
I will post the results after replacing this IC.

Jeff Dougherty
Intrepid Video TV/VCR
263 S Front St
Steelton PA 17113
fax...717-564-4952
www.intrepid-video.com www.tech-repair.net

----- Original Message ----- 
From: "Bob@Bobs tv" <woodman1@xxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, October 17, 2003 11:14 AM
Subject: [TechAssist] Re: Zenith SE3191H, 9-700, 9-604..No audio


Jeff,
       Check the caps in the center of the SMPS 9-604 all 100uf I think,
don't miss the small 100 also hiding within the large ones.. 9-765 is base
stereo amp board.. 8S4 pins not marked on print but +39 center pin.. 9-701
IF/AUDIO 1F3 +26  +12 SW... GND +12  SB....... 8P1  n/c +36 gnd.. Probably
those caps in the power supply as both amps normally would fail at the same
time..or all 5 speakers...I assume when you say no sound its completely.....
no clicks hiss or noise. If u need more help let me know..
Bob,

Bobs TV   Worcester, ma

woodman1@xxxxxxxx

Main  508-853-1482
Fax    508-853-1480
----- Original Message ----- 
From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
To: "Techassist" <techassist@xxxxxxxxxxxxx>
Sent: Thursday, October 16, 2003 5:49 PM
Subject: [TechAssist] Zenith SE3191H, 9-700, 9-604..No audio


> Unit came it with severely magnetized CRT and no audio.
> I manually degaussed the CRT and that seems to have worked.
> I do have audio out of jacks, though not very loud.
> In the menu settings, the only audio option available is Mono..Stereo and
SAP say not available.
> I noticed the degauss coil drooping pretty low under the CRT and thought
maybe it damaged the
> speakers...but it doesn't appear to be close enough to all four front
speakers.
> I'm not at all familiar with this unit..has anyone seen this problem
before?
> ..OH, I also found bad solder on I believe RX3676...black box device with
63-11078..one pin was totally
> breaking contact
>
> Jeff Dougherty
> Intrepid Video TV/VCR
> 263 S Front St
> Steelton PA 17113
> fax...717-564-4952
> www.intrepid-video.com www.tech-repair.net
>
>
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