Error Code List; Error Codes - Pioneer DEH-23UB/XSUC Service Manual

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5.2 ERROR CODE LIST

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ERROR CODES

If a CD memory device is inoperable, or operation of such media is stopped by an error, the error mode is established and a
cause of the error is displayed by an error code. Indication of error codes is intended to reduce the number of calls from
customers and facilitate failure analysis and repair work in servicing.
(1) DISPLAY METHOD
If "0xFD" error mode is displayed in CD MODE (CD MODE area for display), an error code will be displayed in the MIN (minute
display) and SEC (second display) areas.
The same code is displayed in the MIN and SEC areas.
The TNO area is blank (#0FFH), as it conventionally was.
• Display example of the main unit
Depending on the display capability of LCDs, the display format varies, as shown below. XX denotes an error number.
Note: In a case of an OEM product, the error display format is subject to the specifications used by the equipment
manufacturer.
8-digit display
ERROR-xx
(2) LIST OF CD ERROR CODES (Error Mode: 0xFD)
Code Classification Error code to be displayed
7 Servo
10 Servo
TE
L 13942296513
11 Servo
12 Servo
15 Servo
17 Servo
30 Servo
50 Mechanism
51 Mechanism
NOTES
• Indications of error codes are available only during disc operations, because CD operations are
unavailable if a mechanical error is generated.
• If the TOC cannot be read, this is not processed as an error, and operation continues accordingly.
• If you design a new head unit, be sure to use one of the display formats indicated in "Display example of
the main unit."
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• The 2 high-order digits of an error code denote the main
classification, shown below.
0x: Servo-related errors
1x: Servo-related errors
3x: Servo-related errors
.
5x: Mechanism-related errors
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6-digit display
ERR-xx
TOC reading NG TOC information cannot be read.
--> The partial disk or TOC content is illegal.
Carriage Home NG The CRG cannot move toward the inner track.
The CRG cannot move from the inner track.
--> Defective HOME SW; Failure in CRG movement.
Focus Search NG Focusing not available
--> Disc placed upside-down; Stains on the disc; excessive vibration.
Spindle Lock NG Spindle not locked. Subcode not readable.
Subcode NG Proper RF AMP gain not obtained.
RF-amp NG --> Defective spindle; Scratches or stains on the disc; excessive vibration.
--> A CD-R disc that does not contain data loaded, or in a rare case, disc placed upside-down.
--> CD signal error.
Failure in RF data RF not read
--> A CD-R disc that does not contain data loaded
--> A CD-RW disc that does not contain data loaded
Setup NG AGC protection does not work. Focus can be easily lost.
--> Scratches or stains on the disc; excessive vibration.
Search Time Out Failed to reach a target address
--> CRG tracking error; Scratches on the disc; Stains on the disc
Failure in ejection Disc ejection not completed
Load NG Disc loading not completed
--> A foreign object inserted in the mechanism; Disc jammed.
Failure in retried Disc could not be ejected even after disc turning had been retried.
turning for ejection --> A foreign object inserted in the mechanism; Disc jammed.
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4-digit display
E-xx
Details and possible causes
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• How to restore from each error is shown below.
0x, 1x and 3x: ACC-OFF then ON, CD-OFF then ON,
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Disc ejection
5X: ACC-OFF then ON, Disc ejection, Disc reloading
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DEH-23UB/XSUC
7
8
9 4 2 8
0 5 8 2 9 9 4 2 8
m
8
9 9
A
B
C
9 9
D
E
F
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