84
TROUBLESHOOTING
IC 12V
obtained at
IC252 pin #16?
YES
Check Output JACK.
YES
NO
Check IC601.
No sound in LINE2 E-E
mode.
Is 12V obtained at IC251
pin#58?
NO
Is 5V obtained at IC251
pin#40?
Check POWER circuit.
YES
YES
NO
Are CLK and DATA obtained at
IC251 pin#42,43?
Check Input LINE2
JACK
Replace IC251
YES
Is Audio signal output at IC251
pin#53, 57?
Is Audio signal at IC251
pin#10, #15?
YES
Is there MUTE(H)
at IC251 pin#36?
NO
A-3. LINE2 E-E
Is there H at
IC252 #9,
#10?
Is there at
signal IC252
#3, #13?
NO
YES
NO
Replace IC 252
YES
YES
NO
YES
YES
NO
All manuals and user guides at all-guides.com
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Содержание DR-C912B
Страница 13: ...11 INSTRUMENT DISASSEMBLY All manuals and user guides at all guides com...
Страница 37: ...35 EXPLODED VIEW 6 1 EXPLODED VIEW OF DECK ASS Y TOP VIEW All manuals and user guides at all guides com...
Страница 38: ...36 EXPLODED VIEW 6 2 EXPLODED VIEW OF DECK ASS Y BOTTOM VIEW All manuals and user guides at all guides com...
Страница 39: ...37 EXPLODED VIEW 6 3 EXPLODED VIEW OF FL ASS Y All manuals and user guides at all guides com...
Страница 40: ...38 EXPLODED VIEW D0040 D0040 D0020 D0050 D0010 D0060 D0070 All manuals and user guides at all guides com...
Страница 44: ...42 WAVEFORMS VIDEO WAVEFORMS 480 4 6 20 34 All manuals and user guides at all guides com...
Страница 102: ...100 SCHEMATIC DIAGRAM VIDEO AUDIO SCHEMATIC DIAGRAM DVD COMBO RECEIVER All manuals and user guides at all guides com...
Страница 105: ...RECEIVER FRONT PART SCHEMATIC DIAGRAM 103 SCHEMATIC DIAGRAM All manuals and user guides at all guides com...
Страница 112: ...110 BLOCK DIAGRAM RECEIVERSERVO SYSCON BLOCK DIAGRAM All manuals and user guides at all guides com...
Страница 113: ...111 BLOCK DIAGRAM COMBO RECEIVER VIDEO BLOCK DIAGRAM All manuals and user guides at all guides com...
Страница 114: ...NORMAL AUDIO BLOCK DIAGRAM 112 BLOCK DIAGRAM All manuals and user guides at all guides com...
Страница 116: ...114 BLOCK DIAGRAM DIGITAL AUDIO BLOCK DIAGRAM All manuals and user guides at all guides com a l l g u i d e s c o m...
Страница 117: ...AMP BLOCK DIAGRAM 115 BLOCK DIAGRAM All manuals and user guides at all guides com...
Страница 118: ...MAIN PCB CIRCUIT BOARD RTD300 116 CIRCUIT BOARD INDEX All manuals and user guides at all guides com...
Страница 119: ...117 CIRCUIT BOARD INDEX POWER LOGIC PCB CIRCUIT BOARD RTD300 All manuals and user guides at all guides com...
Страница 120: ...118 CIRCUIT BOARD INDEX AMP PCB CIRCUIT BOARD RTD300 All manuals and user guides at all guides com...