12
D-A03
MD SECTION
Enter the test mode, adjust or set as shown in the following table according to the repair operations.
Repair
Operations
PICK replacement
HEAD replacement
MECHANISM
replacement
MAIN PWB
replacement
MD microcomputer
replacement
MD LSI
replacement
RF IC replacement
EEPROM IC
replacement
Execution item
required
TEMP
basic
setting
TEMP EEPROM_SET TEST-CANCEL AUTO-YOBI AUTO-ADJ AUTO-AFB TEST-CANCEL TEST-PLAY TEST-REC
Checking
EEPROM
setting
Writing the
EEPROM
setting
AUTO-YOBI
adjustment
AUTO-
adjustment
AUTO-AFB
adjustment
Writing the
EEPROM
setting
Operation check
1
1
1
2
2 3 4 5 6 7 8
3 4 5 6 7 8
4 5 6 7 8 9
4 5 6 7 8 9
4 5 6 7 8 9
1
2
1 3 4 5 62
3 42
3
3
3
2
2
2
1
1
1
1 8 9
number to and indicate the order of inplementation.
"−" is an item that you don’t have to execute.
The EEPROM writing result is shown at the end of the test mode
OK_EEPROM: "SET" and "YOBI COMPLETE" were wirtten normally
WR_EEPROM: Although "SET" was written normally, it was not written in the "YOBI COMPLETE" state
Perform "AUTO-YOBI" adjustment. After making a normal adjustment.
Write the preliminary adjustment into the EEPROM.
NG_EEPROM: "SET" could not be written.
Check the connection between the MD microcomputer and the EEPROM.
1. Preparation for adjustment
Test disc
Type Test Disc
1 High reflection disc TGYS1 (SONY) for playback
2 Low reflection disc Mini disc for recording
3 Transparent disc for head alignment
2. Test Mode
Test mode setting method
1. While the CD PLAY (CD
) button and the TUNER button are pressed down together, press the POWER button
and then MD PLAY button. (State
A
is changed to state
B
.)
2. Insert the playback-only disc 1 (high reflection disc) or the recordable disc 2 (low reflection disc).
(State is changed to
C
.)
Above procedures will set the unit to the test mode.
A
tsm 22 e : TEST MODE represents version of MD microcomputer.
STOP state
represents version of EEPROM data.
B
EJECT (When the MD STOP button is pressed in the
C
state, the indication
A
is
restored. To restore
C
again, press the CD PLAY (CD ) button.)
C
AUT AJST
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