Electrical Adjustments - Sony STR-DA5500ES Service Manual Digest

STR-DA5500ES
QQ
3 7 63 1515 0
BIAS ALIGNMENT ADJUSTMENT
Note: After 10 minutes or more have passed since the power supply was turned on, this adjustment is done.
Connection:
CN1561 (CN1611, CN1761, CN1861) pin 1, CN1561 (CN1761, CN1861) pin 3
CN1561 (CN1611, CN1761, CN1861) pin 2, CN1561 (CN1761, CN1861) pin 4
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:
– BIAS Board (Conductor Side) –
TE
L 13942296513
Adjustment hole Adjustment hole
for RV1801 for RV1851
(SBL) (SBR)
– PROTECTOR (SB) Board
(Component Side) –
CN1861
4 1
www
.
20
http://www.xiaoyu163.com
SECTION 4

ELECTRICAL ADJUSTMENTS

Adjustment hole Adjustment hole
for RV1601 for RV1501
(CENTER) (F-L)
– PROTECTOR (F-C) Board
(Component Side) –
CN1611
4 1
x ao u163
y
i
http://www.xiaoyu163.com
2 9
8
digital voltmeter
+
–
Q Q
3 6 7 1 3 1 5
Adjustment hole Adjustment hole
for RV1551 for RV1701
(F-R) (SUR-L)
– PROTECTOR (SURR) Board
CN1561
4 1
co
.
9 4 2 8
0 5 8 2 9 9 4
Adjustment hole
for RV1751
(SUR-R)
(Component Side) –
CN1761
4 1
m
9 9
2 8 9 9