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Re: VS - 5043
1. SHORT DETECT SHUT DOWN (PIN 15 OF IC700) CHECK FOR OPEN L902 PART # 351P070010 OFF Q904 C (15 V SUPPLY) ON THE MAIN PCB. 2. SHORT DETECT SHUTDOWN (PIN 15 OF IC700) CHECK FOR SHORTED D913 PART # 264P722010 AND OPEN Z901 PART # 283P039020 (Z905 AND Z900 MAY ALSO BE OPEN BECAUSE OF THIS). 3. X-RAY SHUTDOWN (PIN 55 OF IC700) CHECK FOR A LEAKY D5A09 PART # 264P244030 OFF PIN 6 OF IC5A01. 4. X-RAY SHUTDOWN (PIN 55 OF IC700) CHECK FOR LEAKY D5A21, PART # 264P045040, IN THE BEAM PROTECTION CIRCUIT ON THE MAIN PCB. 5. CHECK FOR LEAKY Q5A03 AND/OR Q5A04 BOTH PART # 260P559050, IN THE HIGH VOLTAGE DETECT CIRCUIT, ON THE MAIN PCB.
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First you can safely take off back and look for Screen controls&Focus, Gently turn up the 3 screen controls this will add light to picture, but you need to evenly turn up, the 3 colors are red, blue, green. the other 3 knobs are for focus. Do not turn them if you do you will need to realign the focus also. And if this doesn't help then there is a high voltage capacitor leaky in the flyback area.