Question about Toshiba 32A32 32" TV

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Toshiba 32a32 chassis tac 245 powers up for 1 secopnd then red power light flashes.

Checked horizontal output transistor and resoldered all cold solder joints. Could not find any bad parts shutting down this set.

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  • Jesse Hassan Aug 28, 2008

    Thanks ! But that set already went to the curb. I was tired of messing with it. Thanks for the reply anyways!!

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Just fixed one with that problem it was the vertical output ic Q301
that was shorted. try wicking it out. it is a LA7833S.
Postings say to be sure to use the Toshiba part

Posted on Aug 28, 2008

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Have rca r52wh74 power ligt will come on an tv makes a whinning noise and goes off


LOT [Line Output Transformer] fault. Contact any service technician. The LOT, and horizontal output transistor should be replaced at the same time. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

Mar 15, 2014 | Toshiba 32A32 32" TV

1 Answer

29pt5301/15 chassis GR2.4AA Dead only flashing red LED standby. 148V on transistor horizontal, and 38V on transistor vertical is ok.


Check the frequency at the base of the horizontal output transistor. It should be in betwen 15.5 to 15.7 KHz. If you want more details about service help, try any service help sites. There are so many can be at internet.

Jun 12, 2012 | Philips Standard (CRT) Televisions

1 Answer

RED LED FLASHING WANT STOP/TV WANT COME ON


Check power supply to see if its working, check across main cap, Do not use chassis ground for 160v. If good, check for 130v on the collector of the horizontal output transistor, if missing voltage, check for either an open low value resistor in the power supply or an open pekoe fuse or a bad voltage reg ic.

Oct 31, 2011 | Toshiba 32A43 32" TV

1 Answer

Sound, no picture, Red LED 4 flashes


Hello Thanshar, Hi, you TV has sound, but no picture. this could be several things, and let us add the red led flash. In my analysis, no picture means no high voltage is reaching the picture tube. this could be due to a bad Horizontal output transistor, and/or a bad flyback transformer. This bad transistor is causing an overload to the power supply section, causing the 4 led flash to blink. Now i want to know if you want to do this service or get professional help. if you decide to do this by yourself, this needs to be performed: the Horizontal output transistor must be checked for short, the horizontal flyback transformer needs to be tested, the deflection yoke also needs to be checked, especially to horizontal coil.

Oct 09, 2010 | Sony FD Trinitron WEGA KV-36FS120 36" TV

1 Answer

Screen will not turn on, power light flashes red. Nothing happens when power button is pushed will not turn set off.


try checking first your tact switch or your power button, then next look for open fuses or low ohm resistor on secondary part of your power supply then check your horizontal and vertical outputs for shortage and open circuits check also your horizontal drive stage.

Oct 13, 2009 | Toshiba 32A32 32" TV

1 Answer

Toshiba 32A32 won't turn on


just fixed one with that problem it was the vertical output ic Q301
that was shorted. try wicking it out. it is a LA7833S.
Postings say to be sure to use the Toshiba part

Feb 27, 2008 | Toshiba 32A32 32" TV

1 Answer

Tv problem


The F27442 uses the CTC203 series chassis and that symptom is very common. If the horizontal output is shorted you MUST resolder the coil in series with the base of that transistor and the pins of the small horizontal drive transformer. When they have been properly resoldered you can put in a new original horizontal output transistor. If the output transistor shorts out again then your flyback (high voltage) transformer is shorted and needs to be replaced.

Aug 08, 2007 | RCA F27442 27" TV

1 Answer

RCA F27669 27"


The F27669 uses the CTC203 series chassis. The most common cause of that symptom is a shorted horizontal output transistor, caused by a cracked solder joint on a small coil connected to that transistor's base. When this happens, the main B+ supply is shorted to ground so the power supply squeels. Every once in a while I also see the horizontal output transistor shorted due to a shorted flyback (high voltage) transformer. A good tech will replace the horizontal output transistor, resolder the coil and drive transformer, test the flyback (replacing it if necessary) and your set will be back to perfect.

Aug 08, 2007 | RCA 27V570T 27" TV

1 Answer

Ge 32gt740


The GE (actually RCA) 32GT740 uses the CTC203 series chassis. The most common problem in that chassis is a coil connected to the base of the horizontal output transistor comes loose, and the set may run sometimes and then it will shut off by itself. If you keep trying to run the set with the solder joints cracked on that coil then the horizontal output transistor will short out and the power supply will squeel when plugged in. Do not plug the set in if it squeels as this could eventually cause major problems in the power supply. The set needs a new horizontal output transistor and a good resoldering of the drive coil, drive transformer and all related parts. If you do not have experience in unsoldering and soldering electronic components in TV's then have a qualified tech handle it for you.

Jul 19, 2007 | GE 32GT740 32" TV

1 Answer

No picture, sound works on Sony TV


Hello, maybe there is a contact error in power supply or the deflection stage. If the resoldering does not help- here are some possible solutions: remedy Replace flyback location LP04. Entered for KV32S22 /SONY (Chassis) remedy 2 Replace IC351, Q602, Q601 (2SC4834M), R607 (1R/0.5W), R622 (10R), IC641 (SI3090CA) and Q502 (2SC5148). remedy 3 Replace tuner. remedy 4 Replace R607, Q502 and IC601. Entered for KV32S22 /SONY (Chassis) remedy 5 Replace regulator IC, R607, check C609, C610 (0.68pF) and C613 (0.0022pF/500V). remedy 6 Replace horizontal output transistor (2SC5148), IC601 (MX0841) and R607 (0.1R). remedy 7 Replace IC1701 and IC601. remedy 8 Replace Q501 (2SC5148), R607 and resolder horizontal driver transformer. remedy 9 Check and replace horizontal output transistor Q502 (2SC5148) and IC601 (MXD8411AB-F). remedy 10 Replace shorted R607. Also check T501 and Q501 for dry joints. remedy 11 Replace C608. remedy 12 Replace Q602 and D648. remedy 13 Replace Q502, Q601, Q602 and R602. Entered for KV32S22 /SONY (Chassis) remedy 14 Replace D626 (6.2V). remedy 15 Replace IC801 and R607. remedy 16 Replace horizontal output transistor and the associated damping capacitor. Check flyback transformer and SMD microprocessor as well. remedy 17 Replace R639 (4.7R/0.250W) located on G board in standby power circuit. remedy 18 Replace D600. remedy 19 Replace C502 (0.47uF/50V). remedy 20 Check D655(1N4937), D657 (1S1834) and Q601 (2SC4423). remedy 21 Check D606 for leakage. remedy 22 Check yoke between vertical and horizontal windings for S/C. remedy 23 Replace Q601 (2SC4834MNP), R607 (0.1R) and C517 (2.2uF/250V). remedy 24 Replace R611.

Apr 22, 2007 | Sony KV-27V22 TV

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