- 2-12 -
Normal IR.VFD & Front
pannel key functions?
Communications between
IR.VFD Front pannelkey & MT1389
is normally?
Check communication lines on
MT1389.
NO
YES
Check the cable connection on
Front pannel.
TEST END
YES
Normal Audio output
when disc playback?
Audio PWM IC received
correct data stream?
Check connection between MT1379
& Audio PWM IC.
Normal Audio PWM IC
out?
Check the related
circuit of Audio PWM IC.
Check Audio filter,amplify,mute
circuit.
NO
NO
NO
YES
YES
YES
E
NO
Summary of Contents for DVT654
Page 9: ...2 3 3 FRONT CIRCUIT 1 2 PIN104 Pins PIN 27V PIN 6 18V PIN7 22V PIN 5V...
Page 24: ...2 18 FIG 7 2 DVD FIG 7 3 CD...
Page 25: ...2 19 FIG 7 4 CD FIG 8 1 DVD 8 FOCUS ON WAVEFORM...
Page 26: ...2 20 FIG 8 2 CD FIG 9 1 9 SPINDLE CONTROL WAVEFORM NO DISC CONDITION...
Page 27: ...2 21 10 TRACKING CONTROL RELATED SIGNAL System checking FIG 10 1 DVD FIG 10 2 CD...
Page 29: ...2 23 ADAT0 3 FIG 12 2 FIG 13 1 2 COMPOSITE VIDEO SIGNAL 13 MT1389 AUDIO OUTPUT TO PWM IC...
Page 30: ...2 24 FIG 14 1 14 AUDIO OUTPUT FROM PWM IC...
Page 31: ...2 25 WIRING DIAGRAM...
Page 38: ...SMPS 2 SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T 2 33 2 34...
Page 39: ...2 35 2 36 MICOM SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 40: ...2 37 2 38 I O SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 41: ...2 39 2 40 AMP SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 42: ...2 41 2 42 FRONT SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 43: ...2 43 2 44 H PHONE SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 44: ...2 45 2 46 AV2 SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 46: ...2 49 2 50 DSP SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 47: ...2 51 2 52 SERVO SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 48: ...3 53 3 54 PRINTED CIRCUIT DIAGRAMS MAIN P C BOARD TOP SIDE...
Page 49: ...3 55 3 56 MAIN P C BOARD BOTTOM SIDE...
Page 50: ...2 57 2 58 FRONT P C BOARD TOP SIDE FRONT P C BOARD BOTTOM SIDE...
Page 57: ......
Page 59: ......
Page 61: ...4 2 2 SPEAKER CENTER SECTION MODEL LHS 75SGC A700 750 751 753 756 754 758 759 756 755...
Page 62: ...4 3 3 SPEAKER REAR FRONT SECTION MODEL LHS 75SGS A800 851 853 850 857 856 858 854 855 859...
Page 63: ......
Page 87: ......
