Sony MZ-R910 Service Manual page 21

1. Connect a digital voltmeter to the AP914 (VC) on the MAIN
[VOLUME +]
board, and adjust
key (voltage down) so that the voltage becomes 2.40
MAIN board
AP914 (VC)
AP912 (GND)
2. Press the X key to write the adjusted value.
Adjustment and Connection Location: MAIN board
• Adjustment method of Vc PWM Duty (H)
(item number: 763)
Remote commander LCD display
VchPWM
763
**
: Adjusted value
1. Connect a digital voltmeter to the AP914 (VC) on the MAIN
[VOLUME +]
board, and adjust
--]
key (voltage down) so that the voltage becomes 2.75 ± 0.015
V.
MAIN board
AP914 (VC)
AP912 (GND)
2. Press the X key to write the adjusted value.
Adjustment and Connection Location: MAIN board
• Adjustment method of Vl PWM Duty (L)
(item number: 764)
Remote commander LCD display
VLpwmL
764
**
: Adjusted value
1. Connect a digital voltmeter to the AP915 (VL) on the MAIN
[VOLUME +]
board, and adjust
--]
key (voltage down) so that the voltage becomes 2.30
MAIN board
AP915 (VL)
AP912 (GND)
2. Press the X key to write the adjusted value.
Adjustment and Connection Location: MAIN board
• Adjustment method of Vl PWM Duty (H)
(item number: 765)
Remote commander LCD display
VLpwmH
765
**
: Adjusted value
[VOLUME --]
key (voltage up) or
+ 0.005
V.
– 0.01
digital
voltmeter
(see page 23)
**
[VOLUME
key (voltage up) or
digital
voltmeter
(see page 23)
**
[VOLUME
key (voltage up) or
+ 0.005
V.
– 0.01
digital
voltmeter
(see page 23)
**
1. Connect a digital voltmeter to the AP915 (VL) on the MAIN
[VOLUME +]
board, and adjust
--]
key (voltage down) so that the voltage becomes 2.55
MAIN board
AP915 (VL)
AP912 (GND)
2. Press the X key to write the adjusted value.
Adjustment and Connection Location: MAIN board
• Adjustment method of Vrec PWM Duty (L)
(item number: 766)
Remote commander LCD display
RECpwL
766
**
: Adjusted value
1. Connect a digital voltmeter to the AP611 (VREC) on the MAIN
[VOLUME +]
board, and adjust
--]
key (voltage down) so that the voltage becomes 1.08
MAIN board
AP611 (VREC)
AP912 (GND)
2. Press the X key to write the adjusted value.
Adjustment and Connection Location: MAIN board
• Adjustment method of Vrec PWM Duty (H)
(item number: 767)
Remote commander LCD display
RECpwH
767
**
: Adjusted value
1. Connect a digital voltmeter to the AP611 (VREC) on the MAIN
[VOLUME +]
board, and adjust
--]
key (voltage down) so that the voltage becomes 1.65 to 1.70
V.
MAIN board
AP611 (VREC)
AP912 (GND)
2. Press the X key to write the adjusted value.
Adjustment and Connection Location: MAIN board
• Adjustment method of Vd PWM Duty
(item number: 768)
Remote commander LCD display
VD_PWM
768
**
: Adjusted value
MZ-R910
[VOLUME
key (voltage up) or
+ 0.005
V.
– 0.01
digital
voltmeter
(see page 23)
**
[VOLUME
key (voltage up) or
+ 0.005
V.
– 0.01
digital
voltmeter
(see page 23)
**
[VOLUME
key (voltage up) or
digital
voltmeter
(see page 23)
**
21