3-58
A
B
RESET or Power On.
Show LOGO?
Flash
Memory operates
properly?
Check connection lines between FLASH
& MT1379 and the FLASH access time
whether is sui table or not.
SDRAM
works properl y?
MT1379
VIDEO outputs
properly?
Have
TV signal output?
Check AV cable
connection to TV set .
Check the load OPEN &
CLOSE switch
Check the Tray control IO pins
on MT1376 & MT1379.
Check the Tray control amplifying
circuit on Motor driver.(IC202)
Does
Tray move inside
when it is not at
closed position?
Normal
TROUT & TRIN
signals?
Normal
TRCLOSE &
TROPEN signal?
Normal
LOAD+ & LOAD-
signal ?
Check the cable connection between
main PCBA and loader. (MECHA)
Check connection lines between
SDRAM(IC502,IC503) & MT1379 and the
SDRAM is damaged.
Check the related circuit of MT1379.
(IC501 PIN 161,166, 168 check)
Check the filtering and amp circuit of
TV si gnal .(IC604)
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
Содержание XBV323 Series
Страница 2: ......
Страница 36: ...PB REC 3 34 3 35 2 TU IF CIRCUIT DIAGRAM...
Страница 39: ...ONLY COMPONENT OPTION ONLY SVHS OPTION 3 40 3 41 5 JACK CIRCUIT DIAGRAM...
Страница 41: ...3 44 3 45 7 TIMER CIRCUIT DIAGRAM...
Страница 44: ...LOCATION GUIDE 3 50 3 51 PRINTED CIRCUIT DIAGRAMS 1 VCR P C BOARD...
Страница 45: ...3 52 3 53 2 KEY 1 LEFT P C BOARD LOCATION GUIDE 3 KEY 2 RIGHT P C BOARD LOCATION GUIDE...
Страница 66: ...3 75 3 C IC604 PIN 26 FIG 13 3 14 AUDIO OUTPUT FROM AUDIO DAC 1 Audio L R FIG 14 1 JK601 PIN 4 5...
Страница 67: ...3 76 2 Audio related Signal ASDAT3 IC501 PIN 157 ABCK IC501 PIN 148 ALRCK IC501 PIN 149 ASDATA3 FIG 14 2...
Страница 72: ......
Страница 74: ...No CD DVD LD 3 83 3 84 2 RF DSP SERVO CIRCUIT DIAGRAM...
Страница 75: ...3 85 3 86 3 AUDIO CIRCUIT DIAGRAM...
Страница 76: ...3 87 3 88 4 AV JACK CIRCUIT DIAGRAM...
Страница 79: ...LOCATION GUIDE 3 93 3 94 PRINTED CIRCUIT DIAGRAMS 1 MTR P C BOARD...
Страница 80: ......
Страница 103: ...4 22 GEAR F R GEAR AY P2 P3 F R Lever Tension Base Boss CAM...
Страница 112: ...MEMO...
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