Ir Power Amp Assy (3/6) - Pioneer SC-LX85 Service Manual

1

10.30 IR POWER AMP ASSY (3/6)

A
CN4400
V+12V
KM200IB5
SR+ 5
Q
SR- 4
GNDR 3
R4491
V+12R
CN3840
2 2125
NM
V-12R 1 2125
R4492
NM
V-12V
B
V+12V
CN4300
KM200IB5
5
SL+
Q
SL- 4
GNDL 3
R4391
CN3830
V+12L
2 2125
NM
1 2125
V-12L
R4392
NM
V-12V
C
GND
SR_IN
SL_IN
R
1/6, 2/6, 5/6
AMUTE
GND
D
V+64V
E
KN4513 KN4514
CKF1089-A CKF1089-A
1
GNDS
V-64V
F
R
3/6
152
1
2
GND_C3
R4400 R4402
680 0.5% 5.6k
0.5%
C4404
NM
C4405
NM
R4401 R4403
GND
680 0.5% 5.6k
0.5%
GND_C33
R4300 R4302
680 0.5% 5.6k 0.5%
C4304
NM
C4305
NM
GND
R4301 R4303
680 0.5% 5.6k 0.5%
V+5V
V+5VFILT3
R4471
0
GND
R4472
0
V-5V
V-5VFILT3
*R4410
4.7k
R4411 C4416 100u
470 ACH1479-A-T
R4311 C4316 ACH1479-A-T
470 100u
*R4310
4.7k
V+5V
V+5VFILT4
R4371
0
GND
R4372
0
V-5V
V-5VFILT4
VD
ACN7187-A VD3 ACN7187-A VD4
0.22 /5W 0.22 /5W
R4425 R4325
1
R4426 R4326
0.22 /5W 0.22 /5W
ACN7187-A ACN7187-A
VS3 VS4
VS
The ! mark found on some component parts should be replaced
with same parts(safety regulation authorized) of identical
designation.
2
3
C4408
ACH7320-A
470u/16
C4409
0.01u/16 R4406
0
2125
V-12V
CFHXSQ103J16-T
IC4402
(1/2)
3
4 UPC4570G2-A
SR_IN
1
8
2
R4405
3.3k 0.5%
C4407
NM
C4309
1%
CFHXSQ103J16-T V+12V
R4415
R4306
0.01u/16
ACN7192-A ACN7185-A
2125
0
47k
C4308
ACH7320-A
470u/16
UPC4570G2-A
GNDS
5
SL_IN
7
6
IC4402
R4305
3.3k 0.5%
C4307
C4420
NM
1000p/50
1
R4448
2
3.3k
3
1%
4
GND
IC4400
TLC071IDR
GND
V-5VFILT3
1%
R4315
ACN7192-A ACN7185-A
47k
GNDS
C4320
1000p/50
1
R4348
2
3.3k
3
1%
4
GND
IC4300
TLC071IDR
GND TLC081
V-5VFILT4
R
1/6, 2/6
VD3
4/6 - 6/6
Q4408
LSC4081UB(QRS)
Q4410
R4466 R4467
2SA1514K(RS)
TEMP
10k 1k
1% 1%
VD4
GND
GND
Q4310
R4366
2SA1514K(RS)
10k R4367
1%
Q4308
1k 1%
LSC4081UB(QRS)
GND
GND
SC-57
3
4
10k
1%
R
R4416
1/6, 2/6
PWM3
5025
OSC1
4/6 - 6/6
1%
R4419
1k
V+5VFILT3
Q4403
1%
LSC4081UB(QRS)
R4420 *C4424
0.1u/50
220
R
YB 1/6
GND
V+5VFILT3
AMPDISABLE2
R
1/6
GND
IREN_SLR
8
7
VDD
Q4406
R4422
6
LTC124EUB
1%
DTC115EUA-TLB
5 1k
GND
R
1/6, 2/6
10k
1%
4/6 - 6/6
R4316
PWM4
5025
OSC1
1%
R4319
1k
V+5VFILT4
Q4303
1%
LSC4081UB(QRS)
R4320 *C4324
220 0.1u/50
R
YB
1/6
GND
V+5VFILT4
AMPDISABLE2
R
1/6
GND
IREN_SLR
8
7
VDD
Q4306
R4322
6
LTC124EUB
1%
DTC115EUA-TLB
5 1k
GND
V+5V
*R4475
*Q4411
10 2
LSA1576UB(QRS)
8 GND
1
R4470
TEMP_OUT
4
1k 3
IC4404
R
NJM12904V
1/6, 2/6
4/6 - 6/6
GND
GND
IC4404
NJM12904V
6
GND
*Q4311
7
R4370 LSA1576UB(QRS)
1k 5
GND
: Audio Signal Route
NOTE
1. RESISTORS
Unit: k-k , M-M or unless otherwise noted.
Rated Power: 1/16w unless otherwise noted.
Toleranee: (J)5% unless otherwise noted.
2. CAPACITORS
Unit: p-pF or u-uF unless otherwise noted.
Ratings: Capacity(F)/Voltage(V) unless otherwise noted.
YB:CKSRYB, QYB:CKSQYB,SYB:CKSYB, CH:CCSRCH
HAT:CEHAT, ZL:CEHAZL
3. NM: No Mount
4
MODULATOR & MOS FET Driver
Q4405
IC44
LTC124EUB
IRS2095
DRIV
DTC115EUA-TLB
1
VDD
2
CSD
3
IN
4
VSS
5
NC1
R4429
6
2125 VREF
1.8k
7
OCSET
8
DT
R4432
2125
5.6k
VSS+12V
R4447
1M
R4440
ACN7165-A
4.7u
L4404
NM
R4409
10k
Q4305
IC43
LTC124EUB
IRS2095
DRIV
DTC115EUA-TLB
1
VDD
2
CSD
3
IN
4
VSS
5
NC1
R4329
6
2125 VREF
1.8k
7
OCSET
8
DT
R4332
2125
5.6k
VSS+12V
R4347
1M
R4340
ACN7165-A
4.7u
L4304
NM
R4309
10k
1608 SIZE
RS1/
RN1/
CCS
CKSR