Pioneer XR-MR7, Руководство по обслуживанию

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XR-MR7
7.1.3 ERROR CODE (CD-R)
Error Code Display for Service
The XR-MR7 can display the total turn-on time of the laser diode
and error codes for service.
When the STOP key is held down for about 10 seconds in stop
state in CD-R mode, an FL display as shown below is obtained.
Right 2 FL digits : Error code for service
The total turn-on time of the laser diode is displayed in the range
of 0 to 5100.
The error code for service is displayed as a number (ERROR
NUMBER), which follows a message "CHECK DISC" or
"CHECK." For details, see the table below.
Display
Error code table for service
Error code Number
∗∗∗∗ ∗∗
Code Symptom Contents of Error Possible Cause Checkpoints
H0
No operation even when
power is supplied.
Communication between mechanism
controller and mode controller is not
achieved.
• Improper soldering
• Pattern short IC301 (PE5109A)
IC351 (PDJ014A)
H1 (CHECK display)
Defective mechanism controller
terminals
• Short-circuiting of parts
• Improper power supply
IC371
(HD74HC573FP)
H2
Pre-recording process does
not complete, and the tray
does not open.
(CHECK display)
Improper input voltage at the
mechanism-control terminals
(pins 22, 23, 24)
IC201 (PA9007A)
H5
Pre-recording process
disabled (CHECK display)
Improper IC303 data writing • Defect in IC303 IC303 (PYY1196)
L
∗
The unit stops during the
tray open/close operation.
(CHECK display)
Improper loading
• Defective tray position sensor
• Defective loading motor
• Improper soldering
• Pattern short
• Improper power supply
IC451 (M56788FP)
E
∗
The unit stops when PLAY
or REC/PAUSE starts.
(CHECK display) Defective slider
• The pickup cannot be returned to the
specified position.
• Disconnected flexible cable
• Defective drive circuit
• Abnormal power supply
• Abnormal TOC position switch
• Improper soldering
S601 (PSG1013)
IC451 (M56788FP)
IC401 (CXD2585Q)
P
∗
The unit does not read the
inserted disc, and stops.
(CHECK DISC display)
Defect in spindle
• Disc upside-down.
• Dirty or cracked disc
• Abnormal disc rotation
• No signal obtained from the disc
• Defective spindle motor
• Defective spindle drive circuit
• Abnormal FG signals
• Defective WBL circuit
• Defective decoder circuit
• Unable to read ATIP or subcode
• High error rate
PC651
(NJL5803K-F1)
IC451 (M56788FP)
IC401 (CXD2585Q)
∗
1
∗
1
∗
1 : SERVO MECHANISM Assy
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