[TechAssist] Re: Toshiba CF3566A, TAC9190 intermit. instant shut down

Couldn't you find more?
kidding.
I was "unawares" as you said.
Most of these seem low cost parts- Maybe in extremely intermittant
cases, all could be installed as a "kit".
Will check on these. Thanks much-
Phil Bader 

Gemini Computer & TV wrote:
> 
> Are you aware of these?
> 
> ---------------------------------------------------------------
> Text pasted from WinSTIPS 2.0
> http://www.ServiceSoftware.com
> ---------------------------------------------------------------
> 
> TOSHIBA   CF3566A
> 
> Dead
> 
> Phil Hull
> 
> Traced Down Problem To Low Reset Volts On Pin 44 Ica01 Ic 840 Defective Part
> # 23318299     L78mr05-Fa
> 
> ---------------------------------------------------------------
> 
> TOSHIBA   CF3566A
> 
> Dead / Ticks
> 
> Phil Hull
> 
> Found A Shorted  D-442  Part# 23316250     ( Erd08m-15 ) Located On Main
> Board
> 
> ---------------------------------------------------------------
> 
> 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.
> 
> ---------------------------------------------------------------
> 
> TOSHIBA   CF3566A
> 
> Dead, Ticking Noise When Plugged In
> 
> Dash 2871
> 
> H.O.T. Q402 2sd2578 Nte2353, C416 10/160
> 
> ---------------------------------------------------------------
> 
> 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)
> 
> ---------------------------------------------------------------
> 
> 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.
> 
> ---------------------------------------------------------------
> 
> 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
> 
> ---------------------------------------------------------------
> 
> 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
> 
> ---------------------------------------------------------------
> 
> 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.
> 
> ---------------------------------------------------------------
> 
> TOSHIBA   CF3566A
> 
> Shuts Down - Intermittently Shuts Off Or Won'T Turn On
> 
> Austin Tv & Electronics
> 
> Found Defective C342 & C871
> 
> ---------------------------------------------------------------
> 
> 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
> 
> ---------------------------------------------------------------
> 
> 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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-- 
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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