Sharp MD-X5H Service Manual page 32

MD-X5H/CP-X5H
Error display
BLANK MD
DEFECT
TOC W ERROR
MD ERROR
M E C H A _ E R R 1 _ *
M E C H A _ E R R 2 _ *
M E C H A _ E R R 3 _ *
* = E Ejection completion position
* = MHorizontal midway position
* = L Load completed position
* = D Head-down position
E 2 -PROM (IC402) writing procedure
1. Procedure to replace E
value of microcomputer in E
2
(1) Replace E -PROM.
2
(2) Refer to the latest E -PROM data list.
(3) Hold down the button and MD PLAY button, and press the
POWER button to enter the test mode.
(4) Indication of version.
[ t s m e
(5) Press the CD PLAY key 7 times.
[ E E P R O M S E T ]
(6) Perform the operation shown in the "E
chart", compare the indication with the E
make a setting according to the E
UP botton or VOL DOWN button.
(7) Set the temperature reference value.
(Refer to "Temperature reference setting procedure".)
(8) The setting must conform to the E
(9) Turn off power supply to write in E
• UTOC was read but total TNO and the number of characters of
NAME was 0?
• Focusing error was caused by shock during REC-PLAY.
• Although UTOC can be read but UTOC cannot be rewritten.
• Data of EEPROOM is not correct.
EXPLANATION OF MECHANISM ERROR
Error display
HINF (IC1401 97 PIN)
< 1.3 V
> 3.06 V
1.853~2.48 V
1.3~1.853 V
2 -PROM and to write the initial
2
-PROM
]
E 2 -PROM version (c to z)
Microcomputer ROM version
Model code
2
-PROM setting mode
2 -PROM data list, and
2 -PROM data list, using VOL
2 -PROM data list.
2
-PROM.
Errors
Ejection failure
Head-up failure
Head-down failure
2. Temperature reference value setting procedure
(to be executed at room temperature within 21 to 29 C)
(1) Test mode stop state.
[ t s m
(2) Crrect temperature depending on ambient temperature according
to the following table.
Ambient temperature
12.2 C ~ 15.8 C
15.9 C ~ 19.6 C
19.7 C ~ 23.2 C
23.2 C ~ 26.8 C
26.9 C ~ 30.7 C
30.8 C ~ 34.3 C
34.4 C ~ 37.9 C
An example: When ambient temperature is 22 C and meadured
(3) Press the CD PLAY button 7 times.
[ E E P R O M S E T ]
(4) Press the MD PLAY button 1 times.
[ F O C U S
(5) Press the CD PLAY button 4 times.
[ T e m p
(6) Press once the MD PLAY button.
[ T E M P
: Measured temperature,
(7) Set temperature to the value determined above, using the
VOL UP or VOL DOWN button.
(8) Press the MD STOP button.
[ T e m p
– 32 –
Corrective action
• Perform recording to check that the disc
is recordable disc.
• Check that the disc is free from flaw,dust,
fingerprint and black spot. Check for disc
disalignment and run-out.
• Check that the record head contact is
normal. Check that there is no broken
wire between PWB and the recording
head.
• Once reset, and redo. If error occurs
persistently, replace EEPROM.
Errors
e ]
temperature is 73H
Temperature setting = 73 H - 01 H
= 72 H
* When the measured temperature fluctuates between
two values, take lower one (if temperature fluctuates
between 73H and 72H, take 72H).
]
]
]
: Temperature setting
]
correction
-0 3
H
-0 2
H
-0 1
H
0
H
+0 1
H
+0 2
H
+0 3
H