Read Sharp SD-NX10 (serv.man5) Service Manual online
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SD-NX10H
The details description of mechanism error
Error Display
Error Message
E r - M D 1
Cannot eject the disc.
E r - M D 2
The head does not ascend.
E r - M D 3
The head does not descend.
HINF
(93 Pin of IC1401)
= E
EJECT complete position
< 1.0V
= M
LOAD/EJECT halfway position
> 3V
= L
LOAD complete position
1.31 ~ 2.35V
= D
HEAD DOWN position
1.01 ~ 1.3V
EEPROM WRITING PROCEDURE
EEPROM (IC1402) writing procedure
1. Method for setting the reference temperature value
(This setting should be performed quickly at a room
temperature, between 21
temperature, between 21
°
C to 29
°
C when the PWB is not
hot.)
1
When replacing the EEPROM, wait until it has cooled
down.
2
Connect the main unit using the single MD main PWB.
3
Enter the test mode as shown on page 24.
"EJECT"
4
Press the TUNER (BAND) button.
"TEMP
"
: Measured temperature,
: Temperature setting
5
Find the temperature correction value for the current
ambient temperature on the following table. Adjust the
temperature correction value using the VOLUME UP/
DOWN button.
temperature correction value using the VOLUME UP/
DOWN button.
Ambient Temperature
Correction
+ 21.0
°
C ~ + 23.2
°
C
-1
H
+ 23.3
°
C ~ + 26.8
°
C
±
0
H
+ 26.9
°
C ~ + 29.0
°
C
+1
H
An example: When ambient temperature is 22
°
C and
measured temperature is 7AH
Temperature setting = 7A H - 01 H
Temperature setting = 7A H - 01 H
= 79 H
* When the measured temperature fluctuates
between two values, take lower one (if
temperature fluctuates between 7AH and
79H, take 79H).
temperature fluctuates between 7AH and
79H, take 79H).
6
Press the POWER button and write the temperature
setting into the EEPROM.
2. Method for making settings other than the reference
temperature
1
Install the MD main PWB in the mechanism, and connect
it to the main unit.
2
Enter the test mode as shown on page 23, and insert a
disc.
"AUTO AJST"
3
Press the CD PLAY button seven times.
"EEPROM SET"
4
Set the value according to the EEPROM DATA LIST
using the VOLUME UP/DOWN button.
5
Press the POWER button, and the settings will be written
into the EEPROM.
6
Enter the test mode again, perform an "AUTO YOBI
adjustment", and write the results into the EEPROM.
S P G
1 1
H
S P G — i n
6 0
H
S P G — m i d
4 B
H
S P G — o u t
3 B
H
S P G M
9 6
H
S P 1
1 0
H
S P 2
9 3
H
S P 2 2
9 3
H
S P 3
E D
H
S P 4
E E
H
S P 5
2 0
H
S P 5 2
2 0
H
S P D L I M
6 2
H
S P K L E V m
1 6
H
F G
9 B
H
F G 2
B 1
H
F F 0
1 0
H
F F 1
7 0
H
F F 2
E 0
H
F Z H L E V
E D
H
F O K L E V h
0 7
H
F O K L E V L
0 9
H
F O S T n
2 C
H
D S C J G
0 D
H
EEPROM DATA LIST (Version : 01)
Focus setting
Item indication
Setting
Spin setting
Item indication
Setting
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