Sony MZ-N10 Notes: installing & operating OpenMG Service Manual page 18

MZ-N10
Power Supply Manual Adjustment
• Adjustment sequence
Adjustment must be done with the following steps.
1. VC1 Low adjustment (item number : 741)
2. VC1 High adjustment (item number : 742)
3. VC2 Low adjustment (item number : 743)
4. VC2 High adjustment (item number : 744)
5. REG1 adjustment (item number : 745)
6. REG3 Low (VC2 Low) adjustment (item number : 747)
7. REG3 Low (VC2 High) adjustment (item number : 748)
8. REG3 High adjustment (item number : 749)
9. VREC_Low adjustment (item number : 751)
10. VREC_Middle adjustment (item number : 752)
11. VREC_High adjustment (item number : 753)
12. 3.3upc adjustment (item number : 754)
13. ChgV L adjustment (item number : 755)
14. ChgV H adjustment (item number : 756)
• Setting method of power supply manual adjustment
1. Make sure that the power supply voltage is 6V(AC adaptor).
2. Select the manual mode of the test mode (see page 12).
3. Set item number.
Note : Power supply adjustment auto item feed mode (see page
12 ) is available to perform the temperature correction and
power supply adjustment without entering the manual mode.
• Adjustment method of VC1 Low
(item number: 741)
Remote commander LCD display
741
VC1 L
** : Adjusted value
1. Connect a digital voltmeter to the TP1906 (VC1) on the MAIN
[VOL +]
board, and adjust
(voltage down) so that the voltage becomes 2.35
MAIN board
TP1906 (VC1)
TP1951 (GND)
2. Press the key or the
X
to write the adjusted value.
Adjustment and Connection Location: MAIN board
• Adjustment method of VC1 High
(item number: 742)
Remote commander LCD display
742
VC1 H
** : Adjusted value
18
**
[VOL --]
key (voltage up) or
+ 0.005
V.
– 0.000
digital
voltmeter
key on the remote commander
(see page 21)
**
1. Connect a digital voltmeter to the TP1906 (VC1) on the MAIN
board, and adjust
(voltage down) so that the voltage becomes 2.75
MAIN board
TP1906 (VC1)
TP1951 (GND)
2. Press the key or the
X
to write the adjusted value.
Adjustment and Connection Location: MAIN board
• Adjustment method of VC2 Low
(item number: 743)
Remote commander LCD display
743
VC2 Lo **
** : Adjusted value
1. Connect a digital voltmeter to the TP1936 (VC2) on the MAIN
board, and adjust
(voltage down) so that the voltage becomes 1.25
MAIN board
TP1936 (VC2)
TP1951 (GND)
2. Press the key or the
X
to write the adjusted value.
Adjustment and Connection Location: MAIN board
key
• Adjustment method of VC2 High
(item number: 744)
Remote commander LCD display
744
VC2 Hi **
** : Adjusted value
1. Connect a digital voltmeter to the TP1936 (VC2) on the MAIN
board, and adjust
(voltage down) so that the voltage becomes 1.70
MAIN board
TP1936 (VC2)
TP1951 (GND)
2. Press the key or the
X
to write the adjusted value.
Adjustment and Connection Location: MAIN board
[VOL +]
key (voltage up) or
digital
voltmeter
key on the remote commander
(see page 21)
[VOL +]
key (voltage up) or
digital
voltmeter
key on the remote commander
(see page 21)
[VOL +]
key (voltage up) or
digital
voltmeter
key on the remote commander
(see page 21)
[VOL --]
key
+ 0.005
V.
– 0.000
[VOL --]
key
+ 0.007
V.
– 0.000
[VOL --]
key
+ 0.007
V.
– 0.000