Sony net md walkman mz-n10 Benutzerhandbuch
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)
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.
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.
power supply adjustment without entering the manual mode.
• Adjustment method of VC1 Low
(item number: 741)
1. Connect a digital voltmeter to the TP1906 (VC1) on the MAIN
board, and adjust
[VOL +]
key (voltage up) or
[VOL --]
key
(voltage down) so that the voltage becomes 2.35 V.
2. Press the
X
key or the
key on the remote commander
to write the adjusted value.
Adjustment and Connection Location: MAIN board
(see page 21)
• Adjustment method of VC1 High
(item number: 742)
1. Connect a digital voltmeter to the TP1906 (VC1) on the MAIN
board, and adjust
[VOL +]
key (voltage up) or
[VOL --]
key
(voltage down) so that the voltage becomes 2.75
V.
2. Press the
X
key or the
key on the remote commander
to write the adjusted value.
Adjustment and Connection Location: MAIN board
(see page 21)
• Adjustment method of VC2 Low
(item number: 743)
1. Connect a digital voltmeter to the TP1936 (VC2) on the MAIN
board, and adjust
[VOL +]
key (voltage up) or
[VOL --]
key
(voltage down) so that the voltage becomes 1.25
V.
2. Press the
X
key or the
key on the remote commander
to write the adjusted value.
Adjustment and Connection Location: MAIN board
(see page 21)
• Adjustment method of VC2 High
(item number: 744)
1. Connect a digital voltmeter to the TP1936 (VC2) on the MAIN
board, and adjust
[VOL +]
key (voltage up) or
[VOL --]
key
(voltage down) so that the voltage becomes 1.70
V.
2. Press the
X
key or the
key on the remote commander
to write the adjusted value.
Adjustment and Connection Location: MAIN board
(see page 21)
Remote commander LCD display
**
: Adjusted value
VC1 L **
741
digital
voltmeter
MAIN board
TP1906 (VC1)
TP1951 (GND)
+ 0.005
– 0.000
– 0.000
Remote commander LCD display
**
: Adjusted value
VC1 H **
742
+ 0.005
– 0.000
– 0.000
digital
voltmeter
MAIN board
TP1906 (VC1)
TP1951 (GND)
Remote commander LCD display
**
: Adjusted value
VC2 Lo **
743
+ 0.007
– 0.000
– 0.000
digital
voltmeter
MAIN board
TP1936 (VC2)
TP1951 (GND)
Remote commander LCD display
**
: Adjusted value
VC2 Hi **
744
+ 0.007
– 0.000
– 0.000
digital
voltmeter
MAIN board
TP1936 (VC2)
TP1951 (GND)