- 2-8 -
A
RESET or Power On.
NO
NO
YES
NO
YES
NO
YES
YES
B
NO
NO
NO
YES
YES
NO
NO
YES
YES
YES
Show LOGO?
Flash Memory operates
properly?
Check connection lines between FLASH
& MT1389 and the FLASH access time
whether is suitable or not.
SDRAM works properly?
Check connection lines between
SDRAM & MT1389 and the SDRAM
is damaged.
MT1389 VIDEO outputs
properly?
Check the related circuit of MT1389.
Have TV signal output?
Check the filtering and amp circuit of
TV signal.
Check AV cable connection
to TV set.
Does Tray move
inside when it is not
at closed position?
Normal TROUT &
TRIN signals?
Check the load OPEN & CLOSE
switch
Normal TRCLOSE &
TROPEN signal?
Normal LOAD+ &
LOADsignal?
Check the cable connection
between main PCBA and loader.
Check the Tray control IO pins on
MT1389 & IP4504.
Check the Tray control amplifying
circuit on Motor driver.
Содержание DVT654
Страница 9: ...2 3 3 FRONT CIRCUIT 1 2 PIN104 Pins PIN 27V PIN 6 18V PIN7 22V PIN 5V...
Страница 21: ...2 15 FIG 2 1 FIG 3 1 2 SDRAM CLOCK 1 MT1389 main clock is at 27MHz X601 3 TRAY OPEN CLOSE SIGNAL...
Страница 23: ...2 17 FIG 6 1 FIG 7 1 6 LASER POWER CONTROL RELATED SIGNAL NO DISC CONDITION 7 DISC TYPE JUDGEMENT WAVEFORM...
Страница 24: ...2 18 FIG 7 2 DVD FIG 7 3 CD...
Страница 25: ...2 19 FIG 7 4 CD FIG 8 1 DVD 8 FOCUS ON WAVEFORM...
Страница 26: ...2 20 FIG 8 2 CD FIG 9 1 9 SPINDLE CONTROL WAVEFORM NO DISC CONDITION...
Страница 27: ...2 21 10 TRACKING CONTROL RELATED SIGNAL System checking FIG 10 1 DVD FIG 10 2 CD...
Страница 29: ...2 23 ADAT0 3 FIG 12 2 FIG 13 1 2 COMPOSITE VIDEO SIGNAL 13 MT1389 AUDIO OUTPUT TO PWM IC...
Страница 30: ...2 24 FIG 14 1 14 AUDIO OUTPUT FROM PWM IC...
Страница 31: ...2 25 WIRING DIAGRAM...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 45: ...2 47 2 48 DVD PART SCHEMATIC DIAGRAMS MPEG SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Страница 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...
Страница 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...
Страница 48: ...3 53 3 54 PRINTED CIRCUIT DIAGRAMS MAIN P C BOARD TOP SIDE...
Страница 49: ...3 55 3 56 MAIN P C BOARD BOTTOM SIDE...
Страница 50: ...2 57 2 58 FRONT P C BOARD TOP SIDE FRONT P C BOARD BOTTOM SIDE...
Страница 57: ......
Страница 59: ......
Страница 60: ...4 1 SECTION 4 SPEAKER PART 1 WOOFER SPEAKER SECTION MODEL LHS 75SGW 952 959 953 954 955 958 957 950 A900 951...
Страница 61: ...4 2 2 SPEAKER CENTER SECTION MODEL LHS 75SGC A700 750 751 753 756 754 758 759 756 755...
Страница 62: ...4 3 3 SPEAKER REAR FRONT SECTION MODEL LHS 75SGS A800 851 853 850 857 856 858 854 855 859...
Страница 63: ......
Страница 87: ......
