[TechAssist] Re: Toshiba CF3566A, TAC9190 intermit. instant shut down
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 29 Aug 2003 12:21:59 -0400
Are you aware of these?
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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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TOSHIBA CF3566A
Dead
Phil Hull
Traced Down Problem To Low Reset Volts On Pin 44 Ica01 Ic 840 Defective Part
# 23318299 L78mr05-Fa
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TOSHIBA CF3566A
Dead / Ticks
Phil Hull
Found A Shorted D-442 Part# 23316250 ( Erd08m-15 ) Located On Main
Board
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TOSHIBA CF3566A
Dead Or Relay Clicks
Reg Chip Ic801 ( 23319619 )
Cap C863 ( 24677470 )
R860 And R866 (0.18 Ohm At 1 Watt ) 24004704
Shorted D-442 Part# 23316250 ( Erd08m-15 ) Located On Main Board
Check For Any Shorted Or Leaky Diodes And Capacitors On The Secondary Of The
Converter Transformer.
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TOSHIBA CF3566A
Dead, Ticking Noise When Plugged In
Dash 2871
H.O.T. Q402 2sd2578 Nte2353, C416 10/160
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TOSHIBA CF3566A
No Sound Or Picture Fast Tick
Bryn Mawr Tv John
Replaced Q402 (2sc3892a) And C416 (10/160v) High Esr T 401 Driver
Transformer (23224972)
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TOSHIBA CF3566A
Power Supply Is Just Ticking
Check: Reg Chip, Ic801 ( 23319619 ) Cap C863 ( 24677470 ) R860 And R866
( .18 Ohm At 1 Watt ) 24004704. Check For Any Shorted Or Leaky Diodes And
Capacitors On The Secondary Of The Converter Transformer.
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TOSHIBA CF3566A
Power Won'T Turn Off - Later The Set Would Not Power On
The Speaker
Replace The Power Relay.
C871 Bad 22uf / 50v
Located Off Collector Of Q870 On Power Supply Board
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TOSHIBA CF3566A
Relay Action No HV/Audio
Bruce A-1 TV Van.Wa. 1/99
Shorted H.O.T.=2SC3892A,Cause:Bad Solder T401=Horiz.Drv.Xformer Preventative
Maint.:C416=10/160v 105C
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TOSHIBA CF3566A
Set May Work - Off/On - Relay Clicks
Hugh/ Main Tv (Set Weighs 200 Lbs!)
Re-Solder All Suspect Connections In/Around Center Board Front Right
Side--Where Large Heat Sinks Are. Resolder T401 Can Tap On Large Heat Sinks
To Cause Problem.
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TOSHIBA CF3566A
Shuts Down - Intermittently Shuts Off Or Won'T Turn On
Austin Tv & Electronics
Found Defective C342 & C871
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TOSHIBA CF3566A
Shuts Down - Intermittently Shuts Off Or Won'T Turn On
Don Hutcheson'S Tv Service Ul 216v Ch Tac9190
Check For Dry Caps In Power Supply - Suspect C863, 47/160v - C871, 22/50v
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Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
www.geminicomputertvsecurityalarms.com
----- Original Message -----
From: "Philip Bader" <tjanphyl@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, August 29, 2003 12:11 PM
Subject: [TechAssist] Toshiba CF3566A, TAC9190 intermit. instant shut down
> Customer said once it came on, it worked all day OK.
> Problem is at turn on.Push power, hear the click and HV crackle,then
> instantly shuts down.Had to unplug awhile,then plug in,try again, may
> work OK. The incidence of shut down got worse over time,til mostly dead.
> It's heeeeeere! And it's working.
> Hate intermittants.
> I heated the chassis boards, flexed,shook, ran it.
> I need some histories on this model for this. Looks like three seperate
> large boards, a flyback has a seperate HV block between it and CRT.
> Where's X ray pin for starters(about 9 months ago another shop repl. HOT
> and two lytics).
> Phil Bader
> --
> Philip Bader
> Jan Phyl TV Inc. (estab. 1976)
> 3420 Recker Hwy. Winter Haven, Fl. 33880
> Fax (863) 299-8821
> email: tjanphyl@xxxxxxxxxxxxxxx
> For Professional Technicians Only
>
>
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