Sony MZ-G755 Service Manual page 22

MZ-G755
• Overall adjustment mode (Title display)
This set LCD display
Assy
: (Disc mark) At end power supply adjustment: Outside lit
At end of electrical offset adj.:inside lit
Note: On the set having microcomputer version 1.000, the disc
mark is displayed on the set LCD only.
: Left side = MO overall adjustment information
F : MO overall adjustment completed
1 : Manual adjustment exists (overall adj. not completed)
0 : Not adjusted
Right side = CD overall adjustment information
F : CD overall adjustment completed
1 : Manual adjustment exists (overall adj. not completed)
0 : Not adjusted
• Electrical offset adjusting method
Caution: The electrical offset adjustment must be made with no
disc loaded.
1. Make sure that the power supply voltage is 3V.
2. Set the test mode (see page 12).
[VOL --]
3. Press the . or
mode.
This set LCD display
Assy 11
[ENTER]
4. Press the key.
This set LCD display
Ofst
: Adjusted value
5. Electrical offset adjustment is over, if the following display
appears.
This set LCD display
OfstOK
22
0 00
key to activate the overall adjustment
0 00
0 35
0 00
• Adjustment method of overall CD and MO adjustment
mode
1. Setting the test mode (see page 12).
[VOL --]
2. Press the or
.
ment mode.
This set LCD display
Assy 11
3. Insert CD disc in the set, and press the
overall CD adjustment mode. Automatic adjustments are made.
This set LCD display
CD RUN
X XX : Item number for which on adjustment
is being executed.
4. In case of CD overall adjustment NG, reset the NV (see page
18), then readjust from the temperature correction (see page
20).
This set LCD display
NG OF
: NG item number
5. If OK through the overall CD adjustments, then perform over-
all MO adjustments.
This set LCD display
CD OK
6. Insert MO disk in the set, and press the
overall MO adjustment mode. Automatic adjustments are made.
This set LCD display
MO RUN
X XX : Item number for which on adjustment
is being executed.
7. In case of MO overall adjustment NG, reset the NV (see page
18), then readjust from the temperature correction (see page
20).
This set LCD display
NG OF
: NG item number
8. If OK through the overall MO adjustments, press the
to return to the test mode and terminate the overall adjustment
mode.
This set LCD display
MO OK
key activates the overall adjust-
0 00
. key to set the
X XX
0 00
0 00
> key to set the
X XX
0 00
key
x
0 00