Zenith XBV613 Service Manual - Page 15
Zenith XBV613 - DVD/VCR Combination Manual
UPC - 719192169715
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(2) No 5.0V_D No 5.0V_D YES Is the Vcc(5.3V) sup- NO plied to Q165 Emittor? YES Is the Q162 Base NO 'H'? YES Check or Replace Q165 Check or Replace D125 Check the PWR CTL "H" signal from µ-com (3) No 5.0V_T No 5.0V_T YES Is the Vcc(5.3V) sup- NO plied to Q163 Emittor? YES Is the Q162 Base NO 'H'? YES Check or Replace Q163 Check or Replace D125 Check the PWR CTL "H" signal from µ-com (4) No 3.3V No 3.3V YES Is there about 3.8V NO at IC131 pin1? YES Is there about 3.3V~5V NO at IC131 pin4? YES Check IC131 and Replace Check or Replace D123 Check the PWR CTL "H" signal from µ-com (5) No 33V No 33V YES Is the Vcc(33V) sup- NO plied to Q161 Emittor? YES Is Q162 Base NO 'H'? YES Check or Replace Q161 Check or Replace D121 Check the PWR CTL "H" signal from µ-com 3-4