EN 68
3139 785 32530
7
Circuit Diagram and PWB Layout
Audio Board: Circuit Diagram (Part 4)
COM
OUT
IN
#
# PROVISION
F412 D1
F413 D6
GND_D
-12VA
GND
PWR_DN
+12VA
+5VL
-33
7401 B3
7409 D3
7410 D5
F402 B1
F403 B1
F404 B1
+5VL
STBY_AMP
GND_D
+12VL
GND_A
GND_D
+5VSTBY
#
F410 D1
F411 D1
2406 B8
2409 D6
3413 C2
3414 D2
3415 C1
3416 A3
3420 D9
3421 E9
3422 A8
3423 C6
4400 B2
4401 C1
4402 A4
5400 A4
5401 A6
5402 A8
5403 B6
5404 B8
5405 C6
7400 A3
9
1
2
3
4
5
F405 C1
F406 C1
F407 D1
F408 D1
F409 D1
C
E
1400 B1
1401 C1
1402 D9
1404 B2
1406 D2
2411 D5
2412 D6
2413 D6
3400 A4
3410 D3
3411 D3
2404 B2
+12VL
+5VL
+5VL
1
2
3
4
5
6
7
8
1409 C2
2400 A4
2401 A6
2402 A8
2403 B6
6
7
8
9
A
B
D
E
A
B
C
D
3
4
5
F405
1400
B5B-EH-A
1
2
0
0
4
3
R
0
6
5
2409
F402
u
0
1
V
6
1
F403
1
3
2
4
GND_A
LD1117S33
7410
220R
5405
7400
PBSS5220T
F408
7401
BC847B
V
6
1
4402
2413
u
0
1
BC847BW
7409
K
6
5
3411
F412
12
2
3
4
5
6
7
8
9
B12B-EH-A
1401
1
10
11
30R
5400
F
2.0A
1406
1
2
220R
3420
1402
B2B-EH-A
F413
F410
K
0
1
6
1
4
3
F409
F
1A
1409
F404
GND_A
F407
5403
220R
3414
10R
F411
220R
5402
3413
2401
V
6
1
u
0
1
10R
F406
n
0
0
1
2
1
4
2
4400
4401
3
2
4
3
2
K
2
2
K
2
2
2
4
3
1
1
4
2
n
0
0
1
10K
3410
F
1A
1404
220R
5404
4R7
3415
u
0
1
V
6
1
2406
220R
5401
2403
V
6
1
u
0
1
V
6
1
u
0
1
2404
V
6
1
u
0
1
2402
3421
220R
GND_A
-12VA
+5VSTBY
-33V
+5VL_PSU
+5VL
V
6
1
u
0
1
2400
+12VL_PSU
+5VSTBY
+5VL
+5VL
STBY_PB
+5VSTBY
+12VL
+12VL_PSU
+12VA
+12VA_PSU
-12VA_PSU
-33V_PSU
PWR_DN
+3V3
STBY_CU
+5VSTBY_CU
-12VA_PSU
+12VA_PSU
-33V_PSU
+5VL_PSU
3139-243-36064-130-04-a3 pbx.pdf 2007-01-26