Question about Sony KP-65WS500 65" Rear Projection Television
Wondering if you or any tv expert can answer my entry on dec 8th 2007.tv 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
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.
also found this
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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