Sony AM-NX1 Service Manual page 20

AM-NX1
• Adjustment Method of REG3_LOW (VC2_HIGH)
(item number: 748)
LCD display
748
R E G 3 L 2 * *
** : adjusted value
1. Connect a digital voltmeter to the TP913 (REG3) on the MAIN
[VOL +]
board, and adjust
(voltage down) so that the voltage becomes 1.20 ± 0.005V.
MAIN board
TP913 (REG3)
TP952 (GND)
2. Press the key to write the adjusted value.
–
Adjustment and Connection Location: MAIN board
• Adjustment Method of REG3_HIGH
(item number: 749)
LCD display
749 R E G 3 H * *
** : adjusted value
1. Connect a digital voltmeter to the TP913 (REG3) on the MAIN
[VOL +]
board, and adjust
(voltage down) so that the voltage becomes 1.55 ± 0.005V.
MAIN board
TP913 (REG3)
TP952 (GND)
2. Press the key to write the adjusted value.
–
Adjustment and Connection Location: MAIN board
20
[VOL --]
key (voltage up) or
digital
voltmeter
(see page 22)
[VOL --]
key (voltage up) or
digital
voltmeter
(see page 22)
• Adjustment Method of VREC_LOW
(item number: 751)
LCD display
751
V R E C L * *
** : adjusted value
1. Connect a digital voltmeter to the TP602 (VREC) on the MAIN
key board, and adjust
(voltage down) so that the voltage becomes 1.12
MAIN board
TP602 (VREC)
TP952 (GND)
2. Press the key to write the adjusted value.
–
Adjustment and Connection Location: MAIN board
• Adjustment Method of VREC_MIDDLE
(item number: 752)
LCD display
752 V R E C M * *
** : adjusted value
1. Connect a digital voltmeter to the TP602 (VREC) on the MAIN
key board, and adjust
(voltage down) so that the voltage becomes 1.22
MAIN board
TP602 (VREC)
TP952 (GND)
2. Press the key to write the adjusted value.
–
Adjustment and Connection Location: MAIN board
[VOL +]
key (voltage up) or
digital
voltmeter
(see page 22)
[VOL +]
key (voltage up) or
digital
voltmeter
(see page 22)
[VOL --]
key
+0.025
V.
–0.01
[VOL --]
key
+0.025
V.
–0.01