Table of Contents
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Circuit Diagrams and PWB Layouts
Small Signal Board: Headphone Amplifier
1
2
HEADPHONE-AMPLIFIER
A
L-HEADPHONE
B
C
R-HEADPHONE
D
E
8204 000 8258.3
1
2
EM5.2E AA
7.
55
3
4
5
B6-
2521
F500
100n
+8V_AUD
+8V_AUD
F502
7682
BC847B
F506
A
A
2524
F503
B6-
100n
F505
A
A
3
4
5
6
7
+8V_AUD
2520
100n
7681-B
MC33178D
5
8
F501
7
6
4
3511
100K
3500
3501
15K
100K
2522
7685-B
470p
BC847BPN
A
+8V_AUD
A
7681-A
7684-A
MC33178D
3
8
BC847BPN
7685-A
F504
BC847BPN
1
2
4
3515
100K
7684-B
3505
BC847BPN
15K
2525
3506
100K
470p
A
A
6
7
8
9
HEADPHONE-L
B1-
BAS316
PDZ-2.4B
A
+5V_AUD
6660
6661
3537
3538
100K
470K
HEADPHONE-R
B1-
A
E_14590_012.eps
8
9
2520 A6
2521 A4
2522 C5
2523 C5
2524 C4
2525 E5
2526 E5
2528 B4
2529 B5
A
2530 D5
2531 C5
2532 E5
2578 E9
2579 B9
2596 C7
3500 B5
3501 B6
3504 C5
B1 B10
B
3505 E5
3506 E6
3509 E5
3510 A4
3511 B5
3512 B4
3513 B4
3514 C4
3515 D5
3516 B4
C
3535 C7
3536 C6
3537 C7
3538 C8
3539 C8
3541 D6
3543 E7
6660 C8
6661 C8
D
7681-A C6
7681-B A6
7682 B4
7684-A C6
7684-B E6
7685-A C7
7685-B C6
F500 A5
F501 A6
E
F502 A5
F503 C5
F504 D6
F505 D5
F506 B4
F507 B4
220304
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