Integra DTR-70.1(N) Service Manual page 4

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SERVICE PROCEDURE-3
6. Replacing Power Amplifier Parts
When a power amplifier of certain channel is broken and goes into Protect mode, the following parts in the channel
must be replaced at the sametime, because these parts get damage in most cases.
<Note>
Idling current readjustment is necessary for after repairs.
Center Sorround R
BACLA-0228 BACLA-0230
Q6012, Q6022 Q6014, Q6024
Q6032, Q6042 Q6034, Q6044
Q6102, Q6112 Q6104, Q6114
C6012, C6022 C6014, C6024
R6052, R6072 R6054, R6074
R6252, R6262, R6254, R6264,
R6272, R6282, R6274, R6284,
R6292, R6302, R6294, R6304,
R6312 R6314
Q6052, Q6062, Q6054, Q6064,
R6402, R6412 R6404, R6414
[e.g.] In case Front Lch
Refer to "SCHEMATIC DIAGRAMS-1
AMP1 (VOLTAGE POWER AMP) SECTION"
BACLA-0226
TE
L 13942296513
U0080 AMPLIFIER PC BOARD
(1/4W)
15
R5230
1.1V
R5250
68K
R5260
270K
C6000
R6110
102J
10K
IDLING
ADJ.
-1.1V
(1/4W)
15
R5240
BACLA-0226, BACLA-0229, BACLA-0231 and BACLA-0233 are electrically and mechanically full-compatible with each other,
but idling current readjustment is necessary.
BACLA-0227, BACLA-0228, BACLA-0230, BACLA-0232 and BACLA-0234 are also electrically and mechanically full-compatible
with each other, but idling current readjustment is necessary.
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Front Sorround
High R Back R
BACLA-0234 BACLA-0232
Q6018, Q6028 Q6016, Q6026
Q6038, Q6048 Q6036, Q6046
Q6108, Q6118 Q6106, Q6116
C6018, C6028 C6016, C6026
R6058, R6078 R6056, R6076
R6258, R6268, R6256, R6266,
R6278, R6288, R6276, R6286,
R6298, R6308, R6296, R6306,
R6318 R6316
BAAMP-0191
Q6058, Q6068, Q6056, Q6066,
R6408, R6418 R6406, R6416
L
+B1L 60.1V
+BL
R6310
10
(1/4W)
NFL
0.6V
-0.6V
-BL
-B1L
-60.2V
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8
Front R Front L
BACLA-0227 BACLA-0226
Q6011, Q6021 Q6010, Q6020
Q6031, Q6041 Q6030, Q6040
Q6101, Q6111 Q6100, Q6110
C6011, C6021 C6010, C6020
R6051, R6071 R6050, R6070
R6251, R6261, R6250, R6260,
R6271, R6281, R6270, R6280,
R6291, R6301, R6290, R6300,
R6311 R6310
Q6051, Q6061, Q6050, Q6060,
R6401, R6411 R6400, R6410
Refer to "SCHEMATIC DIAGRAMS-2
AMP2 (FINAL STAGE) SECTION"
Q Q
BAAMP-0192
3 6 7 1 3 1 5
U0021 AMPLIFIER PC BOARD
L
L6000
R6080
10
3
1
2
2
1
3 NFL
4
5
1
2
3
4
5
R6090
10
L6010
co
.
9 4 2 8
Sorround Front
Back L High L
BACLA-0231 BACLA-0233
Q6015, Q6025 Q6017, Q6027
Q6035, Q6045 Q6037, Q6047
Q6105, Q6115 Q6107, Q6117
C6015, C6025 C6017, C6027
R6055, R6075 R6057, R6077
R6255, R6265, R6257, R6267,
R6275, R6285, R6277, R6287,
R6295, R6305, R6297, R6307,
R6315 R6317
BAAMP-0192
Q6055, Q6065, Q6057, Q6067,
R6405, R6415 R6407, R6417
0 5 8 2 9 9 4 2 8
+B1L
1
Q6050
TTC0002(Q)
R6180
56K
P6070
ID+ ID-
R6210
47K
D6000
R6230
47K
1SS133
1
TTA0002(Q)
Q6060
-B1L
m
TX-NR3007
9 9
Surround L
BACLA-0229
Q6013, Q6023
Q6033, Q6043
Q6103, Q6113
C6013, C6023
R6053, R6073
R6253, R6263,
R6273, R6283,
R6293, R6303,
R6313
Q6053, Q6063,
R6403, R6413
9 9
+60V
IPRO
1
SPL
P6240A
18pvc
VPRO
VOLH
-60V