Sony AM-NX1 Service Manual page 21

• Adjustment Method of VREC_HIGH
(item number: 753)
LCD display
753
V R E C H * *
** : adjusted value
1. Connect a digital voltmeter to the TP602 (VREC) on the MAIN
[VOL +]
board, and adjust
(voltage down) so that the voltage becomes 1.52
MAIN board
TP602 (VREC)
TP952 (GND)
2. Press the key to write the adjusted value.
–
Adjustment and Connection Location: MAIN board
• Adjustment Method of ChgV_L
(item number: 755)
LCD display
755 C h g V L * *
** : adjusted value
1. Connect a digital voltmeter to the TP951 (ChgV) on the MAIN
[VOL +]
board, and adjust
(voltage down) so that the voltage becomes 1.35 ± 0.01V.
MAIN board
TP951 (ChgV)
TP952 (GND)
2. Press the key to write the adjusted value.
–
Adjustment and Connection Location: MAIN board
[VOL --]
key (voltage up) or
+0.06
V.
–0.01
digital
voltmeter
(see page 22)
[VOL --]
key (voltage up) or
digital
voltmeter
(see page 22)
• Adjustment Method of ChgV_H
(item number: 756)
LCD display
756
C h g V H * *
** : adjusted value
1. Connect a digital voltmeter to the TP951 (ChgV) on the MAIN
key board, and adjust
(voltage down) so that the voltage becomes 1.80 ± 0.01V.
MAIN board
TP951 (ChgV)
TP952 (GND)
2. Press the key to write the adjusted value.
–
Adjustment and Connection Location: MAIN board
• Adjustment Method of ChgI_L
(item number: 757)
LCD display
757 C I L
** : adjusted value
1. In the state of power off, short SL951 on the MAIN board
key with a solder bridge. Then, turn on the power.
2. Connect a digital voltmeter to the TP961 (ChgI L) on the MAIN
board, and adjust
(voltage down) so that the voltage becomes 1.41 ± 0.01V.
MAIN board
TP961 (ChgI L)
TP952 (GND)
3. Press the key to write the adjusted value.
–
4. After adjustment, turn off the power and open the solder bridge
on SL951 on the MAIN board.
Adjustment and Connection Location: MAIN board
AM-NX1
[VOL +]
key (voltage up) or
digital
voltmeter
(see page 22)
* *
[VOL +]
key (voltage up) or
digital
voltmeter
(see page 22)
[VOL --]
key
[VOL --]
key
21