Configuration Of Test Mode; Manual Mode - Sony MZ-G755 Service Manual

4-5. Configuration of Test Mode

Test Mode (Display Check Mode)
Press the > or VOL +

Manual Mode

Press the x key.
Press the . or VOL –
Overall Adjustment Mode
Press the x key.
ENTER key
Self-diagnosis Result Display Mode
Press the x key.
Press the N or REC key.
Sound Skip Check Result Display Mode
Press the x key.
Press the T MARK or ENTER key for several
seconds (about 3 seconds).
Key Check Mode
The key check quits, or open the upper panel.
4-6. Manual Mode
Mode to adjust or check the operation of the set by function.
Normally, the adjustment in this mode is not executed.
However, the Manual mode is used to clear the memory, power
supply adjustment, and laser power check before performing
automatic adjustments in the Overall Adjustment mode.
• Transition method in manual mode
1. Setting the test mode (see page 12).
[VOL +]
2. Press the or
>
where the LCD display as shown below.
This set LCD display
Manual
3. During each test, the optical pick-up moves outward or in-
ward while the N or .
onds respectively.
4. Each test item is assigned with a 3-digit item number;
100th place is a major item, 10th place is a medium item, and
unit place is a minor item.
The values adjusted in the test mode are written to the
nonvolatile memory (for the items where adjustment was
made).
key.
Servo Adjustment
Audio Adjustment
Power Supply Adjustment
OP Alignment Adjustment
key.
Electrical Offset Adjustment
Power Supply Adjustment
Auto Item Feed
CD Overall Adjustment/
MO Overall Adjustment
key activates the manual mode
00 0
key is pressed for several sec-
VOL + key: 100th Place of item number
Major Item Switching
VOL – key: 100th Place of item number
N key x key
VOL + key: 10th Place of item number
Medium Item Switching
VOL – key: 10th Place of item number
N key x key
N key: Unit Place of item number
Minor Item Switching
. key: Unit Place of item number
Adjusted Value Variation
Adjusted Value Write
MZ-G755
increase.
decrease.
increase.
decrease.
increase.
decrease.
VOL + key: Increases the
adjusted value.
VOL – key: Decreases the
adjusted value.
X key: When adjusted value is
chaged:
Adjusted value is written.
When adjusted value is
not changed:
That item is adjusted
automatically.
13