Service Manual
Page 18
No No Is there voltage at pin No 10 of IC402 6V? Yes Yes Is R412 broken? Check IC402 and peripheral circuit. E-1 Change F401. Yes Change DIGITAL PCB. Change R412. No Is there voltage at pin 1 of IC401 19V? Check IC401 and peripheral circuit. (LCD SECTION) POWER DOES NOT TURN ON TROUBLESHOOTING GUIDE Yes Is F401 broken?
No No Is there voltage at pin No 10 of IC402 6V? Yes Yes Is R412 broken? Check IC402 and peripheral circuit. E-1 Change F401. Yes Change DIGITAL PCB. Change R412. No Is there voltage at pin 1 of IC401 19V? Check IC401 and peripheral circuit. (LCD SECTION) POWER DOES NOT TURN ON TROUBLESHOOTING GUIDE Yes Is F401 broken?
Service Manual
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... 2 and 5 of IC2801? Check IC6551 and peripheral circuit. No Is there signal at pins Yes AA3 and AA4 of IC302? Check IC5801 and peripheral circuit. TROUBLESHOOTING GUIDE THE PICTURE APPEARS, BUT THE AUDIO DOES NOT APPEARS. (AT RF MODE) No Is CP302 connected? Check IC302 and peripheral circuit. Check IC6552, IC6553...
... 2 and 5 of IC2801? Check IC6551 and peripheral circuit. No Is there signal at pins Yes AA3 and AA4 of IC302? Check IC5801 and peripheral circuit. TROUBLESHOOTING GUIDE THE PICTURE APPEARS, BUT THE AUDIO DOES NOT APPEARS. (AT RF MODE) No Is CP302 connected? Check IC302 and peripheral circuit. Check IC6552, IC6553...
Service Manual
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No Change DIGITAL PCB. Is there voltage at pins No 1, 2, 3, 4 and 5 of CP2804 5V? Yes Connected CD2804. Yes Is there voltage at pins 1, No 2, 3, 4 and 5 of CP2804? Change V2301 (PANEL). Yes No Is CD2804 connected? Yes Is there signal at pins 13, Yes 14, 16, 17, 19, 20, 22, 23, 25 and 26 of CP406 24V? Check IC407 and peripheral circuit. Check IC401, T401, D437 and peripheral circuit. E-3 TROUBLESHOOTING GUIDE THE PICTURE DOES NOT APPEAR No Does backlight shine?
No Change DIGITAL PCB. Is there voltage at pins No 1, 2, 3, 4 and 5 of CP2804 5V? Yes Connected CD2804. Yes Is there voltage at pins 1, No 2, 3, 4 and 5 of CP2804? Change V2301 (PANEL). Yes No Is CD2804 connected? Yes Is there signal at pins 13, Yes 14, 16, 17, 19, 20, 22, 23, 25 and 26 of CP406 24V? Check IC407 and peripheral circuit. Check IC401, T401, D437 and peripheral circuit. E-3 TROUBLESHOOTING GUIDE THE PICTURE DOES NOT APPEAR No Does backlight shine?
Service Manual
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Adjust the color. Yes No Is the color signal received? Yes No Is there color signal at IC2801? E-4 Yes Change DIGITAL PCB. Receive the color signal. Check IC2801 and peripheral circuit. TROUBLESHOOTING GUIDE THE COLOR DOES NOT APPEAR No Is setting of color normal?
Adjust the color. Yes No Is the color signal received? Yes No Is there color signal at IC2801? E-4 Yes Change DIGITAL PCB. Receive the color signal. Check IC2801 and peripheral circuit. TROUBLESHOOTING GUIDE THE COLOR DOES NOT APPEAR No Is setting of color normal?