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6.3 ERROR MODE

- Error Messages
If a CD is not operative or stopped during operation due to an error, the error mode is turned on and cause(s) of the
error is indicated with a corresponding number. This arrangement is intended at reducing nonsense calls from the
users and also for facilitating trouble analysis and repair work in servicing.
(1) Basic Indication Method
1) When SERRORM is selected for the CSMOD (CD mode area for the system), error codes are written to DMIN (min-
utes display area) and DSEC (seconds display area). The same data is written to DMIN and DSEC. DTNO remains
in blank as before.
2) Head unit display examples
Depending on display capability of LCD used, display will vary as shown below. xx contains the error number.
8-digit display
ERROR–xx
(2) Error Code List
Code Class
Displayed error code Description of the code and potential cause(s)
10
Electricity
Carriage Home NG
SERVO LSI Com-
munication Error
11
Electricity
Focus Servo NG
12
Electricity
Spindle Lock NG
Subcode NG
17
Electricity
Setup NG
30
Electricity
Search Time Out
44
Electricity
ALL Skip
50
CD On Mech Error
Mechanism
A0
System
Power Supply NG
Remarks: Mechanical errors are not displayed (because a CD is turned off in these errors).
Unreadable TOC does not constitute an error. An intended operation continues in this case.
Upper digits of an error code are subdivided as shown below:
1x: Setup relevant errors, 3x: Search relevant errors, Ax: Other errors.
6-digit display
ERR–xx
CRG can't be moved to inner diameter.
CRG can't be moved from inner diameter.
→ Failure on home switch or CRG move mechanism.
Communication error between microcomputer and SERVO LSI.
Focusing not available.
→ Stains on rear side of disc or excessive vibrations on REWRITABLE.
Spindle not locked. Sub-code is strange (not readable).
→ Failure on spindle, stains or damages on disc, or excessive vibrations.
A disc not containing CD-R data is found.
Turned over disc are found, though rarely.
CD signal error.
AGC protection doesn't work. Focus can be easily lost.
→ Damages or stains on disc, or excessive vibrations on REWRITABLE.
Failed to reach target address.
→ CRG tracking error or damages on disc.
Skip setting for all track.
(CD-R/RW)
Mechanical error during CD ON.
→ Defective loading motor, mechanical lock and mechanical sensor.
Power (VD) is ground faulted.
→ Failure on SW transistor or power supply (failure on connector).
DEH-1400,14
4-digit display
E–xx
37

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