Sony Walkman MZ-NF810CK, Руководство по обслуживанию

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20
MZ-NF810/NF810CK
• Adjustment Method of REG3_LOW2
(item number: 748)
1. Connect a digital voltmeter to the TP1907 (REGO3) on the
MAIN board, and adjust
[VOL +]
key (voltage up) or
[VOL --]
key (voltage down) so that the voltage becomes 1.25 ± 0.01V.
2. Press the
X
key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location: MAIN board
(see page 22)
• Adjustment Method of REG3_HIGH
(item number: 749)
1. Connect a digital voltmeter to the TP1907 (REGO3) on the
MAIN board, and adjust
[VOL +]
key (voltage up) or
[VOL --]
key (voltage down) so that the voltage becomes 1.25 ± 0.01V.
2. Press the
X
key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location: MAIN board
(see page 22)
• Adjustment Method of VREC_LOW (X2 speed)
(item number: 751)
1. Connect a digital voltmeter to the TP1620 (VREC) on the MAIN
board, and adjust
[VOL +]
key (voltage up) or
[VOL --]
key
(voltage down) so that the voltage becomes 1.10 ± 0.02V.
2. Press the
X
key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location: MAIN board
(see page 22)
• Adjustment Method of VREC_MIDDLE (X4 speed)
(item number: 752)
1. Connect a digital voltmeter to the TP1620 (VREC) on the MAIN
board, and adjust
[VOL +]
key (voltage up) or
[VOL --]
key
(voltage down) so that the voltage becomes 1.10 ± 0.02V.
2. Press the
X
key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location: MAIN board
(see page 22)
• Adjustment Method of VREC_HIGH (HEAD MOTOR)
(item number: 753)
1. Connect a digital voltmeter to the TP1620 (VREC) on the MAIN
board, and adjust
[VOL +]
key (voltage up) or
[VOL --]
key
(voltage down) so that the voltage becomes between 1.65V and
1.75V.
2. Press the
X
key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location: MAIN board
(see page 22)
digital
voltmeter
TP1907 (REGO3)
BATT– (GND)
MAIN board
digital
voltmeter
TP1907 (REGO3)
BATT– (GND)
MAIN board
748
R E G 3 L 2 * *
**
: Adjusted value
Remote commander LCD display
749
R E G 3 H * *
**
: Adjusted value
Remote commander LCD display
751
V R E C L * *
**
: Adjusted value
Remote commander LCD display
digital
voltmeter
TP1620 (VREC)
BATT– (GND)
MAIN board
752
V R E C M * *
**
: Adjusted value
Remote commander LCD display
digital
voltmeter
TP1620 (VREC)
BATT– (GND)
MAIN board
753
V R E C H * *
**
: Adjusted value
Remote commander LCD display
digital
voltmeter
TP1620 (VREC)
BATT– (GND)
MAIN board