4-2
2. TEST & DEBUG
CHECK AV CABLE
CONNECTION TO TV SET.
POWER ON
CHECK CONNECTION LINES
BETWEEN FLASH & ES8381 OR
THE FLASH ACCESS TIME
WHETHER IS SUITABLE OR NOT.
NO
NO
YES
SHOW LOGO?
FLASH
MEMORY OPERATES
PROPERLY?
CHECK CONNECTION LINES
BETWEEN SDRAM (IC502) &
ES8381 OR THE SDRAM IS
DAMAGED.
NO
YES
SDRAM WORKS
PROPERLY?
CHECK THE RELATED
CIRCUIT OF ES6698FD (IC501)
PIN133,134,137,138,139,140
NO
YES
ES8381
VIDEO OUTPUTS
PROPERLY?
CHECK THE CABLE
CONNECTION BETWEEN DVD
PCB AND MD (MECHA)
CHECK THE MD MECHA
NO
NO
YES
DOES
FIRST TRAY MOVE
INSIDE WHEN IT IS AT
CLOSED
POSITION?
OUT_SW, IN_ SW
SIGNALS OK?
CHECK THE OUTPUT SIGNAL
OF ES8381 TO IC401 FOR
CONTROL OPEN / CLOSE
NO
YES
OPEN / CLOSE
SIGNALS ON IC401 ARE
OK?
CHECK THE TRAY
CONTROL I/O PIN ON IC401.
NO
YES
LOAD+ &
LOADSIGNALS ON PDM02
ARE OK?
YES
YES
B
Содержание MDS902S
Страница 9: ...1 8 MEMO ...
Страница 17: ...2 15 2 16 MEMO MEMO ...
Страница 18: ...2 17 PACKING ACCESSORY SECTION ...
Страница 31: ...3 13 INTERNAL BLOCK DIAGRAM OF ICs 1 HA12237F BLOCK DIAGRAM ...
Страница 32: ...3 14 2 NJW1190 BLOCK DIAGRAM 3 AF330W20FT 3 1 PIN CONFIGURATION ...
Страница 33: ...3 15 3 2 BLOCK DIAGRAM 3 3 PIN DESCRIPTION ...
Страница 34: ...3 16 4 AF350W01FT 4 1 PIN CONFIGURATION 4 2 BLOCK DIAGRAM ...
Страница 35: ...3 17 4 3 PIN DESCRIPTION ...
Страница 36: ...3 18 3 19 WIRING DIAGRAM ...
Страница 37: ...3 20 3 21 BLOCK DIAGRAM ...
Страница 40: ...3 26 3 27 3 AUDIO MAIN SCHEMATIC DIAGRAM ...
Страница 41: ...3 28 3 29 4 DECK SCHEMATIC DIAGRAM ...
Страница 42: ...3 30 3 31 5 USB AUX2 HEADPHONE AMP SCHEMATIC DIAGRAM ...
Страница 43: ...3 32 3 33 6 I O JACK SCHEMATIC DIAGRAM ...
Страница 44: ...3 34 3 35 7 AMP SCHEMATIC DIAGRAM ...
Страница 45: ...3 36 3 37 8 WOOFER AMP SCHEMATIC DIAGRAM ...
Страница 46: ...3 38 3 39 9 FRONT SCHEMATIC DIAGRAM ...
Страница 47: ...3 40 3 41 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...
Страница 48: ...3 42 3 43 MAIN P C BOARD BOTTOM VIEW ...
Страница 49: ...3 44 3 45 2 SMPS POWER P C BOARD 3 SUB SMPS POWER P C BOARD ...
Страница 50: ...3 46 3 47 4 FRONT P C BOARD TOP VIEW ...
Страница 51: ...3 48 3 49 FRONT P C BOARD BOTTOM VIEW ...
Страница 52: ...3 50 3 51 5 AMP P C BOARD TOP VIEW BOTTOM VIEW ...
Страница 53: ...3 52 3 53 6 WOOFER AMP P C BOARD MEMO ...
Страница 63: ...4 10 4 FOCUS WAVEFORM AT CD 1 F 2 F NO DISK 5 FOCUS WAVEFORM AT DVD 1 Q401 DVD_LD 2 Q402 CD_LD INSERT CD ...
Страница 65: ...4 12 8 TRACKING SIGNAL 1 Tro 2 Tr 3 Tr 9 RF WAVEFORM ...
Страница 66: ...4 13 10 DISK TYPE JUGEMENT WAVEFORM 1 F 2 FDO 3 SVRRF DVD CD ...
Страница 67: ...4 14 MEMO ...
Страница 68: ...4 15 4 16 SCHEMATIC DIAGRAMS 1 MPEG SCHEMATIC DIAGRAM ...
Страница 69: ...4 17 4 18 2 SERVO SCHEMATIC DIAGRAM ...
Страница 70: ...4 19 4 20 3 USB SCHEMATIC DIAGRAM ...
Страница 71: ...4 21 4 22 4 INTERFACE SCHEMATIC DIAGRAM ...
Страница 72: ...4 23 4 24 DVD P C BOARD TOP VIEW PRINTED CIRCUIT DIAGRAM ...
Страница 73: ...4 25 4 26 DVD P C BOARD BOTTOM VIEW ...