Sony MZ-R700 User Manual

19

1. Connect a digital voltmeter to the TP901 (VC) on the MAIN

board, and adjust 

[VOL +]

 key (voltage up) or 

[VOL --]

 key

(voltage down) so that the voltage becomes G750: 2.50 ± 0.01
V, R700: 2.40 ± 0.01 V.

2. Press the

X

key to write the adjusted value.

(The item number changes to 763 when

X

key is pressed)

Adjustment and Connection Location: MAIN board

(see page 21)

1. Connect a digital voltmeter to the TP901 (VC) on the MAIN

board, and adjust 

[VOL +]

 key (voltage up) or 

[VOL --]

 key

(voltage down) so that the voltage becomes G750: 2.50 ± 0.01
V, R700: 2.75 ± 0.01 V.

2. Press the

X

key to write the adjusted value.

(The item number changes to 764 when

X

key is pressed)

Adjustment and Connection Location: MAIN board

(see page 21)

3) Press the

X

key to write the adjusted value.

4) Select the manual mode of the test mode, and set item number

862 (see page 13).

5) Adjust with the 

[VOL+]

 key (adjusted value up) or 

[VOL--]

key (adjusted value down) so that the adjusted value becomes
01.

6) Press the

X

key to write the adjusted value.

7) Select the manual mode of the test mode, and set item number

871 (see page 13).

8) Adjust with the 

[VOL+]

 key (adjusted value up) or 

[VOL--]

key (adjusted value down) so that the adjusted value becomes
20.

9) Press the

X

key to write the adjusted value.

10) Select the manual mode of the test mode, and set item number

872 (see page 13).

11) Adjust with the 

[VOL+]

 key (adjusted value up) or 

[VOL--]

key (adjusted value down) so that the adjusted value becomes
39.

12) Press the

X

key to write the adjusted value.

Adjustment must be done with the following steps.

1. Make sure that the power supply voltage is 3V.
2. Set the test mode (see page 12).
3. Press the

.

or 

[VOL--]

 key to activate the overall adjustment

mode.

4. Press the 

[END SEARCH]

 key. (the 

[END SEARCH]

 key causes

the item number to be switched to 762.)

8 62

V1dat

8 71

V5num

8 72

V5dat

2.    Vc PWM Duty (H) adjustment (item number 763)

3.    Vl PWM Duty adjustment (item number 764)

1.    Vc PWM Duty (L) adjustment (item number 762)

0 00

Assy 00

7 62

VclPWM

7 63

VchPWM

7 64

Vl PWM