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No power Q601

No power

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  • Sony Master
  • 14,553 Answers

Follow it back from the collector to see where the voltage comes from--- Its not a bottom of the line unit so if you can get the service manual for it and know how to check things with it apart do so, if not have a tech look it over.

Since I do not know your skill level this is the best advice I can give.

Posted on Dec 07, 2012

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SSL2006 TV Q601


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

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I have sharp tv model 20v-r70m not power on the b+ is ok i try test 9v supply go to ic801 drop the 9v,then i try replace ic801 nothing happen, how to fix this


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What is the name of the missing transistor at the space Q601?


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Mar 16, 2012 | Computers & Internet

1 Answer

KP-41T15


On the pcb labeled (G) board look for location RY602
the replacment sony part number is # 1-755-018-11
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Thi is the repair for Power light blinging.
Q601, Q602 parts number(2sc4843)
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hope this helps,
regards,
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2 Answers

Powersupply


Your main power supply may have failed or you've lost the horizontal drive pulse to the the horizontal output transistor. Also the flyback may be bad and the horizontal output transistor may be shorted. If this is the case the main power supply will not start up. These are a few things that may have happened. Stargazer

Sep 08, 2007 | Televison & Video

1 Answer

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ak-blinking needs caps and resistors changed check Q601,Q602,T603

Aug 22, 2007 | Sony KV-27S66 27" 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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