Read Sony STR-DA7100ES Service Manual online
8
STR-DA7100ES
NOTE WHEN REPLACING THE POWER MOS ON THE D-AMP BOARD
When either Power MOS among those shown below on the D-AMP board is to be replaced, replace four pieces bracketed with [ ] at the
same time, because these four Power MOS could be all defective.
[Q1412, 1413, 1414, 1415], [Q1417 ,1418, 1419, 1420], [Q1422, 1423, 1424, 1425], [Q1426, 1428, 1429, 1430], [Q1432, 1434, 1435,
1436], [Q1437, 1439, 1440, 1441], [Q1442, 1444, 1445, 1446]
Also, when replacing them, be sure to destroy the Power MOS main body with pliers, etc. and wipe off debris, and then mount new parts.
same time, because these four Power MOS could be all defective.
[Q1412, 1413, 1414, 1415], [Q1417 ,1418, 1419, 1420], [Q1422, 1423, 1424, 1425], [Q1426, 1428, 1429, 1430], [Q1432, 1434, 1435,
1436], [Q1437, 1439, 1440, 1441], [Q1442, 1444, 1445, 1446]
Also, when replacing them, be sure to destroy the Power MOS main body with pliers, etc. and wipe off debris, and then mount new parts.
NOTE WHEN REPLACING REGULATORS ON THE MOTHER COM BOARD
When replacing the regulators (Q5313, 5323, 5330, 5340) and thermistor (THP4401) on the MOTHER COM board, unsolder all these
parts, and then remove them together with the heat sink, and remove screws and replace respective parts.
parts, and then remove them together with the heat sink, and remove screws and replace respective parts.
pliers
Q1413
Q1412
Q1415
Q1414
D-AMP board
heat sink
MOTHER COM board
fourteen solders
Q5340
Q5323
THP4401
Q5313
Q5330
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