Sony MZ-E800 Service Manual page 19

• Adjustment method of normal charging current
(item number 721)
1. Select the manual mode of the test mode, and set item number
721 (see page 13).
Remote commander LCD display
721 ChgPW1 **
** : Adjusted value
2. Connect a digital voltmeter between TP901 (BATT+) and
[VOL +]
TP902 (BATT-) on the MAIN board, and adjust with
key (voltage up) or [VOL --] key (voltage down) so that the
voltage becomes 1.236±0.036 V.
If the voltage is already adjusted, go to the next adjustment
item without pressing the X key.
digital
voltmeter
MAIN board
TP901 (BATT +)
TP902 (BATT –)
3. Press the key to write the adjusted value.
X
• Adjustment method of trickle charging current
(item number 722)
1. Select the manual mode of the test mode, and set item number
722 (see page 13).
Remote commander LCD display
722 ChgPW2 **
** : Adjusted value
2. Connect a digital voltmeter between TP901 (BATT+) and
[VOL +]
TP902 (BATT-) on the MAIN board, and adjust with
[VOL --]
key (voltage up) or key (voltage down) so that the
+0.036
voltage becomes 0.168 V.
–0
If the voltage is already adjusted, go to the next adjustment
item without pressing the X key.
digital
voltmeter
MAIN board
TP901 (BATT +)
TP902 (BATT –)
3. Press the X key to write the adjusted value.
Adjustment and Connection Location:
– MAIN Board (Conductor side) –
TP902 (BATT –)
(SET GND)
TP918 TP903 TP919 TP901
(VC) (2V IN) (VR) (BATT +)
Overall Adjustment Mode
• Configuration of overall adjustment
N > key . key
Overall adjustment mode
(Title display)
CD overall
adjusting
All item NG item exists
OK or
x key
CD overall
adjustment
x key
OK
N >
MO overall
adjusting
NG item exists
or
x key
MO overall
adjustment
key
x OK
[Test mode $display check mode%]
Note: Adjust the CD first, when performing adjustment.
– 19 –
• Adjustment Method of Overall CD and MO Adjustment
Mode
1. Setting the test mode (see page 12).
[VOL --]
2. Press the key activates the overall adjustment mode.
Remote commander LCD display
000 Assy11
3. Insert CD disc in the set, and press the
Overall CD Adjustment mode. Automatic adjustments are made.
Remote commander LCD display
TP904
XXX CD RUN
XXX: Item number for which an adjustment is being executed.
4. If NG in the overall CD adjustments, return to NV reset (see
page 17) and perform the adjustment again.
Remote commander LCD display
000 *** NG
***: NG item number.
5. If OK through the overall CD adjustments, then perform over-
all MO adjustments.
Remote commander LCD display
000 CD OK
6. Insert MO disc in the set, and press the
Overall MO Adjustment mode. Automatic adjustments are
made.
Remote commander LCD display
XXX MO RUN
XXX: Item number for which an adjustment is being executed.
x key
7. If NG in the overall MO adjustments, return to NV reset (see
CD overall
page 17) and perform the adjustment again.
adjustment
Remote commander LCD display
NG
000 *** NG
***: NG item number.
key
8. If OK through the overall MO adjustments, press the
to return to the test mode and terminate the Overall Adjustment
mode.
Remote commander LCD display
000 MO OK
x key
MO overall
adjustment
NG
• Overall CD and MO adjustment items
1. Overall CD adjustment items
Item No.
312
313 CD electrical offset adjustment
314
328 CD TWPP gain adjustment
321 CD tracking error gain adjustment
key to set the
.
323
CD tracking error offset adjustment
332
336 CD ABCD level adjustment
344 CD focus gain adjustment
345 CD tracking gain adjustment
521
CD two-axis sensitivity adjustment
522
341 CD focus bias adjustment
2. Overall MO adjustment items
Item No.
112
113
MO electrical offset adjustment
114
118
221 Low reflective CD tracking error gain adjustment
223
N > key to set the Low reflective CD tracking error offset adjustment
232
236 Low reflective CD ABCD level adjustment
244 Low reflective CD focus gain adjustment
245 Low reflective CD tracking gain adjustment
121 MO tracking error gain adjustment
122 MO tracking error offset adjustment
134 MO TWPP gain adjustment
131
MO TWPP offset adjustment
132
136 MO ABCD level adjustment
144 MO focus gain adjustment
145 MO tracking gain adjustment
141 MO focus bias adjustment
key
x
– 20 –
Description
Description