Sony MD Walkman MZ-E25, Service Manual

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SECTION 4
ELECTRICAL ADJUSTMENTS
Precautions on Adjustment
• In this set, the CD and MO adjsutment can be executed auto-
matically by selecting the TEST mode.
• Execute adjustment in the AUTO mode, then if NG occurred,
readjust faulty item in the SERVO mode.
Adjustment in AUTO Mode
1. Enter the TEST mode, and press VOL + key to select the AUTO
mode.
2. Insert the CD Test disc (TDYS-1) or commercially available
SONY MO disc (already recorded).
3. Press
(
key twice, and the CD or MO is discriminated, then
respective items are automatically adjusted in the order as listed
in tables below.
• CD AUTO Adjustment
No. Mode Description
1 061 Sled IN
2
071
Focus search
3 062 Sled OUT 5
4 051 CD EF balance
5
052
CD EF gain
6 051 CD EF balance
7 053 CD ABCD gain
8 054 CD focus gain
9 055 CD tracking gain
10 056 CD RF offset
11 057 CD RF gain
12
056
CD RF offset
13 058 CD focus bias
14
073
ADER check
15
074
Biaxial gain correction
POWER Mode
•
Enter the TEST mode, and press VOL
−
key,
(
key, and VOL
−
key in this order to select the POWER mode.
•
To select other modes, refer to the TEST mode configuration.
1. Configuration of POWER Mode
AUTO Mode
•
Enter the TEST mode, and press VOL + key to select the AUTO
mode.
•
To select other modes, refer to the TEST mode configuration.
•
In the AUTO mode, the Remote controller LCD display is as
shown below:
1. Configuration of AUTO Mode
p
key
(
key
p
key
(
key
(
key
POWER Mode
3 0 0
UNREG Check
3 1 0
POWER OFF
3 1 1
343 Auto?
p
key
p
key
p
key
p
key
(
key
(
key (CD, MO discrimination)
CD Auto Adj.
MO Auto Adj.
Start?
OK
NG
OK
NG
MANUAL Mode
Manu?
AUTO Mode
Auto?