[TechAssist] Re: Zenith SS8769H2, 9-840-1, 9-822-1 no power
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 20 Nov 2002 16:48:38 -0500
These are from WINSTIPS:
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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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ZENITH SS8769H2
Dead
Raymond rivet
9-840 mainmodule: Cx2107 2200/50, C3407 100/50
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ZENITH SS8769H2
Dead (Sometimes Led Will Display &Relay Will Click)
Mike Rilee C.C.S.
Replace Q2 2n3904 Or Sk3854 , Cr5 1n4004, & Cr6 12v Zener Diode On Relay
Board & Resolder Conections On Bottom
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ZENITH SS8769H2
No High Voltage, Channel Led Is On And Set Tunes, Audio Ok Too
Marshfield Tv
Check/Replace Q3209 On 9-186. Zenith Part # 121-1040, Ecg123ap
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ZENITH SS8769H2
Start-Up Inop, 150v Ok...
D.A. Electronics
R3213 100 Kohm Resistor In Multivibrator Circuit Was Open. No Start Pulse
On Driver.
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ZENITH 9-822
Dead
Orlan Stone, Cet
Horiz Driver Xmer Burned. Q3404 Leaky (121-1264-1), Q3206 (121-1290), Tx3205
(95-4135-2). Also Check For Open Resistor In Series With Cr3434 Anode. 100
Ohm, Not On Schematics.
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ZENITH 9-822
Dead
gilbert
Module 9-822: C3407 100uf/25v
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ZENITH 9-822
Dead - Surge Damage
Marshfield Tv
Bad Icx3401, Uc3842an, Ecg7096. Shorted Chopper Transistor, Irf740,
Ecg2397. Blown Fuse.
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ZENITH 9-822
Dead Or Int.
Rick'S Tv
C3407
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ZENITH 9-822
Dead Or Int.
Also On 9-823, 9-824 & 9-1074 Possible A Few Others
C3407 100/25, This Is Normal For This To Be Bad In Most Cases Of No Hv
,However Found Another With A Shorted Vertical Ic Which Wont Let Hv Come
Up,If Intermitt Its Cap Only//Emergency Tv Electronics
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ZENITH 9-822
Dead. Green Stereo Led Flashes On & Off
Cx3402 100uf/25v
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ZENITH 9-822
Dead. No Startup. No P.S. Squeal
Billdog
Icx3401. I Had Replaced C3407 A Year Or 2 Before On This Set
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ZENITH 9-822
Dead. starts to come up (relay clicks 2x) works sometimes
tvkirk Flushing MI
Cr3434 ecg116 was 470 ohms resistance
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Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
----- Original Message -----
From: "Leonard G. Caillouet" <lcaillo@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, November 20, 2002 3:14 PM
Subject: [TechAssist] Zenith SS8769H2, 9-840-1, 9-822-1 no power
>
> Any of you zenith experts have some tips on this one? I have no manual
(NLA
> from Zenith) and no experience with this set. The set will not power up.
> Relay clicks twice. Power supply has output on secondary, 135v at HOT
> collector. FBT tests good, nothing happens at HOT except slight drop in
dc
> at collector when it tries to turn on. No drive signal at all appears.
> Micro is powered and it does respond to power button.
>
> power/deflection module is 9-840-1
> control/video module is 9-822-1
>
> I am guessing that the VCJ is IC2301 (221-518). can anyone tell me
anything
> about it? Where is it supplied from, H drive at what pin, etc? It
appears
> to not be powered...
>
> None of the Zenith manuals that I have contain anything like these
modules.
> Any help would be appreciated.
>
> Leonard G. Caillouet
> Service Manager
> Electronics World
> Gainesville, FL
> 352-332-5608
> 352-332-5668 (fax)
>
>
>
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