STR-DA5400ES
25
SECTION 5
ELECTRICAL ADJUSTMENTS
BIAS ALIGNMENT ADJUSTMENT
Note: Afer 10 minutes or more have passed since the power supply was
turned on, this adjustment is done.
Connection:
+
–
digital voltmeter
CN1561 (CN1611, CN1761, CN1861) pin , CN1561 (CN1761, CN1861) pin
CN1561 (CN1611, CN1761, CN1861) pin , CN1561 (CN1761, CN1861) pin
Note: Pin 3, 4 of CN1611 are open.
Procedure:
1. Connect a digital voltmeter to the CN1561 (CN1611, CN1761,
CN1861).
2. Press the [POWER] button to turn on the main power.
3. Adjust the RV1501 (RV1551, RV1601, RV1701, RV1751,
RV1801, RV1851) so that the digital voltmeter reading is 5
mV to 20 mV.
Note: Adjust for the digital voltmeter reading to become 5 mV as much as
possible.
Adjustment and Connection Location:
Adjustment hole
for RV1801
(SBL)
– BIAS Board (Conductor Side) –
– PROTECTOR (F-C) Board
(Component Side) –
– PROTECTOR (SURR) Board
(Component Side) –
– PROTECTOR (SB) Board
(Component Side) –
4
1
CN1561
4
1
CN1761
4
1
CN1611
4
1
CN1861
Adjustment hole
for RV1851
(SBR)
Adjustment hole
for RV1601
(CENTER)
Adjustment hole
for RV1501
(F-L)
Adjustment hole
for RV1551
(F-R)
Adjustment hole
for RV1701
(SUR-L)
Adjustment hole
for RV1751
(SUR-R)
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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