Philips LX7000SA Service Manual page 41

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POWER AMPLIFIER BOARD - CIRCUIT DIAGRAM (PART 2)
1 2
POWER AMPLIFIER CIRCUIT (Part 2)
A
B
3407
220R
AC
C
3K9
3406
D
+C
1N4148
6339
E
G
F
G
1305
FE-BT-VK-N
SUR RIGHT
7
GND_SUR
AS
H 6
SUR LEFT
5
GND_CTR
4 AC
CENTER
3
C_ON
2
S_ON S_ON
1
I
# : Provision
Note : Some values may varies, see respective parts list for correct value.
1 2
9-5
3 4 5
+C
T3A15
BZX79-B3V9
1510
6335
100u
7302 2372
G
AN7591 2 12 11
3390
NF2 VCC B2
4R7
INPUT DRIVER SEPP OUTP O2 10
CIRCUIT CIRCUIT CIRCUIT
5315
6 STBY
1u
RIPPLE PROTECTION
1 RF
FILTER CIRCUITS
3391
4R7
INPUT DRIVER SEPP OUTP
4 NF1 O1 7
CIRCUIT
CIRCUIT CIRCUIT
5314
G
IN GND1 GND2 B1
1u
5 3 9 8
100u
3380
68K
2374
2373
4n7
8521
AC
C
1
10u
2375
3404
7329
BC847B
10K
G
S_ON
2364
22u
3401
150K
G
AMP_S
3351
39K
AS
AMP_S
3350
39K
G
3 4 5
6 7 8
+A +50V
7325
STP16NE06
7326
BC856B
2368
47p
7327
BC847B
470R
G G G
3389 3392
BC857B
7328
4K7
G
G
C
+A
+C +50V
7322
STP16NE06
2365
7321
BC856B
47p
7320
BC847B
BZX79-B3V9
6322
2352
G G G G
4u7
G
AN17830A
7301
1
VCC
6 CH1-IN CH1-O+ 2
TSD PROT
CIRCUIT
CH1-O- 4
3362
8 CH2-IN
4K7
9 MUTE CH2-O+ 12
MUTE
# 2391
G
REF
220p
5 STBY CH2-O- 10
STBY
CIRC
GND
7 3 11
4n7 2380
4n7
2381
AS SR SL AS
6 7 8
Published in Heiloo, Holland.
9-5
9 10 11 12
# 4314
SL SR C
CTR-
CTR+
BP
CTR-
CTR+
3359
2R2
5311
1u
BP
3361
2R2
5313
1u
SR
3360 BP
SL
2R2
5310
1u
5312
1u
BP
3358
2R2
3139 118 55290...8239_210_91863...for 3470 pt3 dd wk0230
9 10 11 12
12/21/15
1303-C G12 7320 F8
1303-D H12 7321 F8
1303-E H12 7322 E7
1305 H1 7325 A6
1510 B4 7326 A6
2350 H4 7327 B7
2351 H4 7328 C7
2352 G6 7329 E3
2354 H9 8521 D5
A 2355 H9
2356 I9
2357 G9
2358 I12
2359 H12
2360 G12
2364 F5
2365 F8
2366 D8
2367 D8
2368 B7
2369 B4
B
2371 D3
2372 C5
2373 D5
# 4315
2374 D4
2375 E3
2376 C2
2377 C3
2378 C2
2379 B2
AC AS
2380 I7
2381 I7
2391 H8
C
2393 G11
2394 G11
2395 H11
2396 I11
2397 H11
2398 H11
3350 I3
3351 H3
3352 H3
3353 H3
3358 I9
D 3359 G9
3360 H9
3361 H9
3362 H8
3363 G7
3364 G7
3365 G7
3366 F6
3367 F6
3368 F7
3371 I5
3372 E7
E
3373 E8
3374 F5
3375 G5
3380 D3
3381 D3
3386 B6
3387 B6
3388 B6
3389 C7
3390 C5
3391 C5
3392 C8
F
3396 A7
3397 A6
3398 B6
3399 B5
3400 B5
3401 F5
3402 H8
3403 B7
1303-C
3404 E4
3405 E2
3406 C2
G 3407 C2
3408 B3
CENTER
4314 B12
4315 B12
5310 I9
5311 G9
5312 I9
1303-D 5313 H9
5314 D5
5315 C5
6320 G8
6321 G8
H
6322 F7
6323 F7
6324 I8
6325 H8
6326 H8
1303-E
6327 H8
6328 E6
6330 C8
6331 D7
6332 B8
6333 C8
6334 A6
I
6335 B5
6336 A5
6337 D4
6338 E2
6339 E2
7301 H6
7302 C3