Sony MZ-E710 Service Manual page 14

MZ-E710
5-5-3. Vc PWM Duty (L) adjustment method
1. Set the Test mode.
2. Set the manual mode, item No. will change to 754.
LCD display
754 ChgV L XX
3. Connect a digital voltmeter to TP962 (V) on the main board
and adjust (voltage up) key and
VOL +
down)key on the remote control.
Adjustment value:1.35V
Standard value:1.345 to 1.355V
MAIN BOARD (SIDE A)
D903
TP962
(V)
C915
9
R907
C912
C910
C911
D902
C905
R904
C907
C906
4. Press key to write the adjustment value.
5-5-4. Charge voltage (H) adjustment method
1. Set the Manual mode and set the item No. to 755.
LCD display
755 ChgV H XX
2. Connect a digital voltmeter to TP962(V) on the main board
and adjust key (Voltage down) and
VOL +
(Voltage up) on the remote control.
Adjustment value:1.80V
Standard value:1.795 to 1.805V
MAIN BOARD (SIDE A)
D903
TP962
(V)
C915
9
R907
C912
C910
C911
D902
C905
R904
C907
C906
3. Press key to write the adjustment value.
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5-5-5.Current Amplifier (L) adjustment method
1. Make a solder bridge to short out TAP951 on the main board
2. Set the test mode.
3. Set the Manual mode and set the item No. to 752.
(voltage
VOL –
4. Connect a digital voltmeter to TP959 on the main board and
digital voltmeter
TP962
(V)
Note: Even when a measurement voltage doesn't make it in the
key
VOL –
5. Press
6. Turm off the power and open the solder bridge on TAP951 on
5-5-6. Current Amplifier (H) adjustment method
1. Make a solder bridge to short out TAP952 on the main board
digital voltmeter
2. Set the test mode.
3. Set the overall adjustment mode and set the item No. to 753.
TP962
(V)
and turn on the power.
LCD display
752 ChgI L XX
adjust key (Voltage up) and
VOL +
down) on the remote control.
Adjustment value:1.41V
Standard value:1.405 to 1.415V
MAIN BOARD (SIDE A)
1 IC951
C960
TP963
R965
digital voltmeter
standard value,it surely presses more than once the
key or the key.
VOL –
But, adjustment value is made to protect the inside of the
standard range.
key to write the adjustment value.
the main board.
and turn on the power.
LCD display
753 ChgI H XX
key (Voltage
VOL –
TP959
TAP952 TAP951
R964
TAP951
TP959
VOL +