ViewSonic PJ750 Service Manual - Page 15
ViewSonic, Corporation, CONFIDENTIAL, PJ750
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Power can not be turned on A e voltage input at pinsO, 0,C),C)of NO E800 on the PWB ass'y Main at standby mode? (TP46): +14V YES O (TP47): +17V ® (TP48): +6V © (TP49): +4.3V Disconnect TSW form Power unit (circuit). And check TSW short or open? Short Open TSW Power unit (circuit) Fuse on Power unit (circuit) What is the state of TEM indicator D301? Blinks Not light PWB ass'y SENSOR DC FAN (EXHAUST) What is the state of LAMP Blinks indicator D302? Not light PWB ass'y Main Is the LAMP COVER set? NG Set the LAMP COVER OK Is the LAMP connection? NG Set the LAMP again OK PWB ass'y Main H (More than 6V) Measure voltage at the (2) (TP73) of E809 on the PWB ass'y Main. L (OV) Lirn't SW (PWB ass'y SW) ViewSonic Corporation 12 CONFIDENTIAL -- DO NOT COPY PJ750
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