Troubleshooting - Fostex CR200 Service Manual

8. TROUBLESHOOTING

8-1. Service Number Display
• The CR200 displays the "CHECK" or "CHECK" "DISC?" prompts during abnormal operations and it stops.
• When the STOP or CLEAR key on the remote control unit Model 8317 is pressed continuously for about 10 seconds, the
last service number will be displayed even though the CR200 is once turned off and back on.
• To correct the error, check the "Checkpoint" device and its surrounding circuit indicated in the table below.
8-2. Service Codes and Countermeasures
Code Contents
H0 Unit does not operate.
H1
H2 Recording preparations
cannot be performed and
tray does not open.
("CHECK" is displayed.)
H5 Recording is impossible.
("CHECK" is displayed.)
Unit stops operating while
L*
tray is open/close.
("CHECK" is displayed.)
Operations stop when disc
E*
is inserted, playback start
is requested, REC/PLAY is
requested and operations
are acknowledged.
("CHECK" is displayed.)
Unit stops when disc is
P*
inserted without reading
internal information.
("CHECK" is displayed.)
Operations stop before
C*
REC/PLAY is set.
("CHECK" is displayed.)
Operations stop before
F*
playback or recording.
("CHECK" is displayed.)
A* " C H E C K " " D I S C " i s
displayed and unit stops
during operations related
to recording.
B* Same as "A*" above.
Internal information on disc
cannot be read. Unit stops
when disc is inserted.
Location of fault
H0: Communication is not properly made
between mechanism and mode controllers.
H1: Fault on mechanism controller is detected.
H2: Voltage error on Mechanism controller pin-
22, 23 and 24.
(See page 42 to check voltage.)
IC360
Fault on loading section is detected.
Fault on slider section is detected.
• Pickup cannot be moved to designated position.
Fault on spindle section is detected.
• Disc is placed upside-down.
• Disc with scratches or dusts is inserted.
• Disc does not rotate regularly.
• Designated signal cannot be obtained from disc.
Fault on recording laser power is detected.
• Disc with scratches or dusts is inserted.
• Proper recording power is not output.
• RF is not properly detected.
Fault on pickup section is detected.
•
Disc with scratches, dusts, etc obstructs
operations and unit stops.
• Proper laser power is not output.
• Not focused.
Stop is detected during recording.
Disc with scratches, dusts, etc obstructs
•
operations and unit stops.
Cause
• Faulty soldering
• PCB pattern is shorted or open.
• Parts next to each other is shorted.
• Faulty power supply
• IC 360 is faulty.
• Faulty tray position sensor.
• Faulty loading motor.
• Faulty soldering
• PCB pattern is shorted or open.
• Faulty power supply.
• Flexible cable is not properly connected.
• Faulty drive circuit.
• Faulty TOC position SW.
• Faulty soldering.
• PCB pattern is shorted or open.
• Faulty power supply.
• Faulty spindle motor.
• Faulty spindle drive circuit.
• Error in FG detection.
• Faulty WBL circuit.
• ATIP or subcodes cannot be read.
• Error rate is high.
• Faulty laser diode.
• Error in RF detection.
• Faulty RFT, RTB circuit.
• Insufficient recording power.
• Faulty soldering.
• PCB pattern is shorted or open.
• ATIP or subcodes cannot be read.
• Faulty laser diode.
• Faulty focus drive circuit.
• Faulty pickup.
• Faulty soldering.
• PCB pattern is shorted or open.
• Faulty power supply.
If hardware problems occur before A* or
B* is displayed, unit stops with displaying
s e r v i c e c o d e s o t h e r t h a n t h e s e .
Consequently, these service codes are
displayed only when disc is faulty.
Faulty soldering, shorted / open PCB
pattern and faulty power supply would
cause same symptom.
CR200
Checkpoint
IC356, IC357,
IC207, IC358,
IC352, IC353
IC205
IC360
IC203
D1001, IC203,
IC201, IC206
PC1001, IC202,
IC201, IC206
IC205, IC101,
IC362, IC363
IC206, IC203
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