Sony MZ-R91 762V c l P W M, 765V c h P W M, 763V r h V c l, 766V r h V c h, 764V r l V c l

digital

voltmeter

digital

voltmeter

digital

voltmeter

•Adjustment method of VC PWM Duty (L) (mode number: 762)

1.Select the manual mode of the test mode, and set the mode number 762. (See page 12)

LCD display

762V c l P W M

•Adjustment method of VC PWM Duty (H) (mode number: 765)

1.Select the manual mode of the test mode, and set the mode number 765. (See page 12)

LCD display

765V c h P W M

2.Connect a digital voltmeter to the TP915 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --]key (voltage down) so that the voltage becomes 2.5 ± 0.02 V.

Proceed to the next step without pressing X key if voltage is already adjusted.

digital

voltmeter

MAIN board

TP915 (VC)

TP5105 (GND)

3. Press the X key to write the adjusted value.

• Adjustment method of VREM PWM Duty (H) (mode number: 763)

1.Select the manual mode of the test mode, and set the mode number 763. (See page 12)

LCD display

763V r h V c l

2.Connect a digital voltmeter to the TP915 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --]key (voltage down) so that the voltage becomes 2.75 ± 0.02 V.

Proceed to the next step without pressing X key if voltage is

already adjusted.

MAIN board

TP915 (VC)

TP5105 (GND)

3. Press the X key to write the adjusted value.

• Adjustment method of VREM PWM Duty (H) (mode number: 766)

1.Select the manual mode of the test mode, and set the mode number 766. (See page 12)

LCD display

766V r h V c h

2.Connect a digital voltmeter to the TP914 (VR) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --]key (voltage down) so that the voltage becomes 2.75 ± 0.02 V.

Proceed to the next step without pressing X key if voltage is already adjusted.

digital

voltmeter

MAIN board

TP914 (VC)

TP5105 (GND)

3. Press the X key to write the adjusted value.

•Adjustment method of VREM PWM Duty (L) (mode number: 764)

1.Select the manual mode of the test mode, and set the mode number 764. (See page 12)

LCD display

764V r l V c l

2.Connect a digital voltmeter to the TP914 (VR) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --]key (voltage down) so that the voltage becomes 2.75 ± 0.02 V.

Proceed to the next step without pressing X key if voltage is already adjusted.

digital

voltmeter

MAIN board

TP914 (VC)

TP5105 (GND)

3. Press the X key to write the adjusted value.

•Adjustment method of VREM PWM Duty (L) (mode number: 767)

1.Select the manual mode of the test mode, and set the mode number 767. (See page 12)

LCD display

767V r l V c h

2.Connect a digital voltmeter to the TP914 (VR) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --]key (voltage down) so that the voltage becomes 2.5 ± 0.02 V.

Proceed to the next step without pressing X key if voltage is

already adjusted.

MAIN board

TP914 (VC)

TP5105 (GND)

3. Press the X key to write the adjusted value.

2.Connect a digital voltmeter to the TP914 (VR) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --]key (voltage down) so that the voltage becomes 2.5 ± 0.02 V.

Proceed to the next step without pressing X key if voltage is

already adjusted.

MAIN board

TP914 (VC)

TP5105 (GND)

3. Press the X key to write the adjusted value.

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