[TechAssist] Re: Toshiba CF3566A, TAC9190 intermit. instant shut down
- From: Philip Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 29 Aug 2003 12:58:20 -0400
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
*****************************************************************************
Classifieds! Buy or Sell!
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