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PRE- & POWER AMPLIFIER CIRCUIT
0888 E13
1323 E14
2365 E12
2370 F13
2378 E12
2608 D2
0889 G13
2351 D14
2366 F12
2371 C7
2604 C2
2609 A3
1300-A F13
2352 F14
2367 D12
2372 D8
2605 A2
2610 D3
1300-B E13
2361 E7
2368 F13
2373 C10
2606 D2
2611 B6
1322 E14
2362 E7
2369 E12
2377 C14
2607 B2
2612 D6
1
2
HPREF
GND_A
+12V
A
B_REF3
2662
VOL_LEFT
3632
+6V
7600-A
3
8
NJM4556AM
10R
2u2
1
+6V
2
+6V
4
GND_A
B
2607
220p
HPREF
3635
3634
+6V
6K8
27K
C
HPREF
GND_A
+12V
B_REF3
2663
VOL_RIGHT
3633
7600-B
+6V
5
8
NJM4556AM
10R
2u2
7
+6V
6
+6V
4
D
GND_A
2608
220p
HPREF
3636
3608
6K8
27K
E
+5V6
3623
+12V_A
5601
B_REF3
2u2
10R
MUTE
GND_A
+5V
F
+12V_A
+6V
HPREF
G
GND_A
1
2
11-6
2613 G1
2618 E4
3356 E14
3361 E7
3366 F12
2614 G2
2662 A1
3357 E14
3362 F7
3367 D12
2615 E2
2663 D1
3358 F14
3363 E7
3368 G12
2616 E2
2664 A2
3359 E14
3364 E7
3369 D12
2617 F4
3355 D14
3360 F14
3365 D12
3370 F12
3
4
5
2609
3609
3615
22u
1K
1K
3611
3613
7608
BC817-25
BC817-25
7603
1K
1K
GND_PA
GND_PA
GND_PA
3617
3619
HP_LEFT
33R
47R
GND_A
GND_PA
TU
3618
3620
HP_RIGHT
33R
47R
2610
3610
3616
1K
1K
22u
3612
3614
BC817-25
7602
BC817-25
7604
1K
1K
GND_PA
GND_PA
GND_PA
7606
7607
BC847B
BC857B
+5V
+5V
+5.6V
+4.3V
3627
0.1V
5K6
3624
0.6V
7605
BC847B
10K
0V
D
D
3
4
5
3371 E12
3377 B10
3386 C13
3392 C8
3612 D4
3617 B5
3372 E12
3378 B10
3387 D10
3608 E2
3613 B5
3618 C5
3373 E12
3379 D10
3388 D10
3609 A4
3614 D5
3619 B5
3374 E11
3384 B13
3389 C9
3610 D4
3615 A5
3620 C5
3376 C9
3385 C14
3390 C9
3611 B4
3616 D5
3621 F1
6
7
8
+C
+17.5V
+16.7V
G
AQ00
2372
4u7
G
7301
AN17830A
3361
0V
6
CH1-IN
82K
TSD PROT
CIRCUIT
0V
8
CH2-IN
9
MUTE
0V
MUTE
AP
5
STBY
+3.64V
STBY
CIRC
3362
82K
AMP_IC
For point 2 pc board only
pt2
6
7
8
11-6
3622 G1
3627 E4
3632 A1
5301 D12
6371 B9
3623 E1
3628 E4
3633 D1
5302 G12
6372 B8
3624 F3
3629 F5
3634 B2
5303 E12
6373 C8
3625 F3
3630 A1
3635 B2
5304 F12
6374 C10
3626 E4
3631 C1
3636 E2
5601 E2
6375 C11
9
10
11
+H
+50V
+35.8V
+54.2V
7302
STP16NE06
+16.7V
+16.7V
7303
2373
6375
+53.8V
BC856B
47p
+54.2V
1N4148
7304
+16.7V
BC847B
+13.8V
+7.2V
G
G
G
G
+16.7V
1
VCC
+7.8V
CH1-O+
2
+7.8V
CH1-O-
4
+7.8V
CH2-O+
12
REF
CH2-O-
10
+7.8V
GND
7
3
11
0V
0V
0V
AP
AL
AR
9
10
11
6376 E11
7301 E9
7600-B D3
7606 E4
6377 E11
7302 C9
7602 D4
7607 E5
6378 F12
7303 C10
7603 B5
7608 B4
6379 E12
7304 C10
7604 D5
9508 G14
6380 D11
7600-A A2
7605 F4
9510 D14
12
13
14
AMP_ON
5V
2377
22u
4.7V
3385
150K
G
+3.64V
AMP_IC
5301
1u
9510
3365
4R7
2351
3369
220u
4R7
3367
3355
4R7
330R
3371
3357
1300-B
4R7
330R
4
5303
1323
3359
3
1u
2
3373
330R
AL
4K7
pt2
1
0888
2378
EH-S
G
TO HEATSINK SCREW
1322
3372
220p
3356
2
2
4R7
1
330R
2370
1
3366
3358
EH-S
220n
1300-A
4R7
330R
AR
5304
3360
AV00
1u
330R
3370
220u
4R7
2352
3368
9508
4R7
5302
0889
1u
HEATSINK SCREW HOLE
3139 118 55160 ...90280 sh 4 dd wk203
12
13
14
A
B
C
D
E
F
G
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