4-24
MECHANISM TROUBLESHOOTING GUIDE
Are there T/up and supply reel
pulses.
In Play/Cue/Rev is the pinch
roller in contact with the capstan
shaft.
Replace Reel Sensor.
Is the output of DFG, DPG OK?
Check aligment positions (page 4-
14) Check Pinch spring.
Replace Drum Motor.
Check Servo, Syscon.
Check the Syscon, µ-COM.
Insert the cassette.
Check CST Holder Assembly.
Is there variation for CST IN S/W
Output?
(In Tape with REC Tab
“L” “H” “L”)
(In Tape without REC Tab
“L” “H” “L” “H”)
Does the CST IN S/W work
normally?
Does the lever Assembly S/W
work normally.
Check Syscon Circuit.
Check Syscon Circuit.
Replace CST IN S/W.
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
YES
C. AUTO STOP(PLAY/CUE/REV)
D. NO CASSETTE LOADING
Содержание LGXBR342
Страница 10: ...OVERALL WIRING DIAGRAM 3 2 ...
Страница 36: ...3 36 3 37 EE MODE VIDEO TU MODE AUDIO 2 TU IF CIRCUIT DIAGRAM ...
Страница 38: ...3 40 3 41 4 JACK CIRCUIT DIAGRAM ...
Страница 44: ...3 52 3 53 PRINTED CIRCUIT DIAGRAMS 1 VCR P C BOARD ...
Страница 45: ...3 54 3 55 3 TIMER P C BOARD 2 POWER P C BOARD ...
Страница 46: ...3 56 3 57 4 KEY P C BOARD 5 JACK P C BOARD ...
Страница 47: ......
Страница 60: ...3 70 3 71 CIRCUIT DIAGRAMS 1 E5_BGA POWER UART2 CIRCUIT DIAGRAM ...
Страница 61: ...3 72 3 73 2 DDR_SDRAM FLASH CIRCUIT DIAGRAM ...
Страница 62: ...3 74 3 75 3 RST CONTROL STATUS_REG ATAPI HOST_CPLD LATCH CIRCUIT DIAGRAM ...
Страница 63: ...3 76 3 77 4 1394 ETHERNET_CONNECTOR CIRCUIT DIAGRAM ...
Страница 64: ...3 78 3 79 5 VIDEO_IN OUT CIRCUIT DIAGRAM ...
Страница 65: ...3 80 3 81 6 AUDIO IN OUT NON STD_VIDEO CIRCUIT DIAGRAM ...
Страница 66: ...3 82 3 83 7 AUDIO DAC VIDEO_Y MIXER CIRCUIT DIAGRAM ...
Страница 67: ...8 FRONT A V 1934 JACK CIRCUIT DIAGRAM 3 84 3 85 ...
Страница 72: ...3 94 3 95 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...
Страница 73: ...3 96 3 97 2 MAIN P C BOARD BOTTOM VIEW ...
Страница 103: ...3 127 4 IC302 uPD76f0047 MICOM Pin Assignment ...
Страница 108: ...3 132 3 Main Clock2 for IC302 20MHz GND LEVEL X301 IC302 PIN 13 4 SDRAM Clock GND LEVEL MCLK IC201 PIN 35 ...
Страница 125: ......
Страница 127: ...3 151 3 152 2 DSP CIRCUIT DIAGRAM No Power No operation DSP IC RESET IC SDRAM R259 0Ω ...
Страница 129: ...3 155 3 156 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...
Страница 152: ...MAINTENANCE INSPECTION PROCEDURE 4 22 GEAR F R GEAR AY P2 P3 F R Lever Tension Base Boss CAM ...
Страница 161: ...MEMO ...
Страница 163: ......