Question about Sony KP-65WS500 65" Rear Projection Television

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Sony 7 blinks

Wondering if you or any tv expert can answer my entry on dec 8th in same status as before.A local repair tech is leaning to replace my power supply? I feel i will become a victum of a fraudulant repair estimate.Can anyone help or give me any pro advice? thanks
tony p

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Re: sony 7 blinks

6 times, Diagnosis: LOW B OCP/OVP (Overcurrent/over voltage). Possible causes: +5 line is overloaded. (A, B boards), +5 line is shorted. (A, B boards). Symptoms of the problem: No picture.

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MODEL: KDP51WS550, KDP57WS550, KDP65WS550, KP46WT500, KP46WT510, KP46WT520, KP51WS500, KP51WS510, KP57WS500, KP57WS510, KP57WS520, KP65WS500, KP65WS510
SUBJECT: Picture gets bright then shuts down. After repairs tech noticed a mark was created on all 3 CRT's.
CAUSE: Found Video Output was defective causing the failure of the 200v line. 200 volt line has two fuse resistors R7301 (10 ohm 1/4w) on the CB Board. R8225 (1 ohm 1/2w) on the D board. R8208 (0.47 ohm 1/2w) also on the D Board. All three resistors are in series. One or all 3 could be open. After replacing 2 resistors and Video Output IC set returned to normal operation. CRTs will need to be changed due to phosphor damage. On Models KDP-51WS550, KDP-57WS550, KDP-65WS550 CB Board resistor is R9335 10 ohm 1/4w. D Board resistor is R6509. NOTE: This resistor may be a jump wire according to the schematic. Models: KP-51WS520, KP-57WS520 These models have a fuse resistor on all 3 CRT Boards. CB R9335 10 ohm 1/4w CR R9110 10 ohm 1/4w CG R9211 10 ohm 1/4w On the D Board R6509 is a jumper wire according to the schematic.

Posted on Dec 11, 2007

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