Yamaha CDX-E400, Service Manual

Page: 13 / 35

CDX-E400
CDX-E400
13
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ERROR MESSAGE
(1) If stopped by any cause, error message can be displayed by pressing the remote STOP key while pressing and
holding the panel STOP key, or by test mode command number 23.
The player holds the latest error message in EEPROM. So even if stopped with no error, the latest error message
can be displayed with same operation.
(2) Shown below is an example of display. (“E-73” as an example)
(3) Listed in the table below are error messages.
ERROR MESSAGES
E – X 0
E – X 1
E – 7 1
E – 7 2
E – 7 3
E – 7 5
E – 9 4
E – 9 5
E – X 7
E – X 8
ERROR
DESCRIPTION
Data cannot be read after finishing search.
Data cannot be read during PLAY(X=0), PAUSE(X=3), or SCAN(X=2).
At the start, tracking servo is not effective.
At the start, spindle servo PLL is not effective.
At the start, data can not be read.
Tracking servo off in FO balance, or FO fine, or TR fine gain adjustment
and recovery action failure.
Close switch does not work with tray closed.
Open switch does not work with tray open.
Traverse(Feed) inner switch does not work.
Recovery action fails after focus drop.
MN35511 does not give response of SENSE, with resetting by the unit’s
microcomputer.
●
Error Messages List
*No. for each state
(meaning of “X”)
PLAY X=“0”
SCAN X=“2”
PAUSE X=“3”
PEAK SEARCH X=“4”
SEARCH X=“5”
START X=“7”
STOP X=“8”
LOADING X=“9”
OPEN X=“–”
NO DISC X=“C”
1) Error Code Troubleshooting
Error code
X0 , X1 , 73
...... Data cannot be read.
Error codes
94 , 95
..... Poor tray loading operation.
Motor defective
Control IC (IC302) defective
Microcomputer defective
Does tray
operate when
OPEN/CLOSE key is
pressed?
YES
NO
Loading switch detection
poor Microcomputer
defective
TRACKING
servo defective.
FEED servo defective.
Check by using
another disc.
Is disc dirty or
scratched?
YES
NO
Pick-up position
Within disc range
Outermost
(on mirror
surface)
Pick-up defective, Spindle system
defective (Motor fails to run, etc.)
Error code
X7
............. FEED operation defective.
(Limit switch fails)
FEED servo defective
Microcomputer defective
Is forced
feed operation
available in TEST
mode?
YES
NO
Feed limit switch
defective
Microcomputer defective
Y
...Outward
T
...Inward
Error code
X8
............ Focus drops.
TRACKING servo
defective.
FEED servo defective.
Check by using
another disc.
Is disc dirty or
scratched?
YES
NO
Pick-up position
Within disc range
Outermost
(on mirror
surface)
FOCUS servo defective
Pick-up defective
1 E-73