Ssb: Class-D & Muting (B3) - Philips 32PFL3403D/85 Service Manual

Circuit Diagrams and PWB Layouts
SSB: Class-D & Muting
1301 C15 2308 B9 2313 C13 2318 D11 2323 D13 2328 D12 2333 F9 2338 E13
1302 B15 2309 C9 2314 C12 2319 D8 2324 D8 2329 D8 2334 F9 2339 D2
2301 A6 2310 C10 2315 C7 2320 D7 2325 D10 2330 E10 2335 D11 2340 E8
2302 A9 2311 C7 2316 C7 2321 C11 2326 D13 2331 E11 2336 E11 2341 E13
2304 A6 2312 C8 2317 C13 2322 D8 2327 D10 2332 E8 2337 B13 2342 F6
1 2 3
CLASS-D & MUTING
B3
A
B
+3V3STBY
MUTING CIRCUIT
3348
10K
+3V3STBY +3V3STBY
FROM STANDBY uP
6304
FAST_PLOP
BAS316
3345
10K
7302
BC857BW
C
TO FLASH&NVM 3333
3V3
6305
ANTI_PLOP F313 3344 10K
7309
BC847BW
BAS316 10K
+3V3STBY
3337
4K7
D
POWER_DOWN 2339 I330 3338
7303
F314 3V3
BC857BW
4K7
1u0
0V
E
MUTEn F315
F
3139 123 6359.2
1 2 3
LC8.1U LA
2345 E9 3303 C7 3308 D8 3314 E13 3327 E13 3335 C4 3344 C2 4301 E6
2346 C5 3304 C8 3309 C11 3315 D10 3328 E13 3337 D3 3345 C3 4302 F6
2347 C5 3305 B13 3311 D7 3317 D11 3332 C4 3338 D2 3346 B5 5301 A5
3301 A5 3306 C7 3312 D10 3319 E8 3333 C3 3342 E4 3347 B5 5302 A8
3302 A8 3307 C7 3313 D8 3326 E8 3334 C4 3343 E4 3348 B2 5303 C12
4 5 6
F333
5301
F301
3301 10R 11V9
+12VAudio +12VAAudi o
22u
2301
100n
GNDSND
F334
5305 30R 12V2 +12VDAudio
2304
220u
25V
GNDSND
+3V3_SW
TO ANALOG-IOs
3346 3347
10K 10K
2347 HP_ROUT
932225872685
3332 100u
F316
7304
2SD2704K
1K0
2SD2653K
2346 HP_LOUT PreAmpL F305
3334 100u
F317
0V 7305
I342 2SD2704K
1K0
2SD2653K
3335
10K
932225872685 F306
F309
PreAmpR
I343
F312
3342 I340 F318
I344 STANDBYn
7308
BC847BW
10K
3343
22K
FROM STANDBY uP
5307 30R
4301 5308 30R
4302 2342 10n
RES
GNDSND SNDGND
4 5 6
7. 44
5304 D12 6302 E3 7302 C3 7307 E14 F304 D10 F309 D7 F314 D2
5305 A5 6303 E3 7303 D3 7308 E5 F305 C7 F310 C15 F315 E1
5306 A8 6304 C2 7304 C4 7309 C2 F306 D7 F311 C15 F316 C5
5307 E6 6305 C2 7305 C4 F301 A5 F307 C15 F312 E7 F317 C5
5308 E6 7301 C9 7306 E14 F302 A8 F308 C15 F313 C1 F318 E7
7 8 9 10
F335
5302 F302
3302 10R -12V2
-12VAudi o -12VAAudio
22u
2302
100n
GNDSND
F336
+12V2
5306 30R -12VDAudio
2308
220u
25V
GNDSND
+12VAAudio +12VDAudio
7301
GNDSND GNDSND
I301 I302
TDA8932BTW
3303 10K 2311 1u0
VDDA
Φ VDDP
3304
2312 2 27
IN1P OUT1
68K 220p CLASS D
-2V8
I305 I306
3306 10K 2315 1u0 POWER
3 22
IN1N OUT2
10K 2316 1u0 I309 AMPLIFIER
3307 -2V8
15 4
I310
IN2P DIAG
3308 2319 -2V8
GNDSND
68K 220p
14 30
I311 I312 IN2N HVP1
3311 10K 2320 1u0 -2V8
100n
2322 I313 12 19
INREF HVP2
2324 100n
-7V6
3313 39K I315
-12VAAudi o 10 28
OSCREF BOOT1
31 21
NC OSCIO BOOT2
GNDSND 11 25
HVPREF STAB1
-8V2
I319
2329 100n
-12VAAudi o 18 24 -1V3
DREF STAB2
I333 4V7
3326 0R 5
ENGAGE
3V2
3319 I321
6
POWERUP
-2V6
10K
I322
13
TEST
VSSP VSSD|HW
CGND VSSA
EMC
2332
1n0
-12VAAudi o
-12VDAudio
2345 1n0
GNDSND
GNDSND
-12VAAudi o
7 8 9 10
F332 E15 I301 C7 I306 C8 I312 D8 I317 E13 I329 E14 I337 D13 I343 D3
F333 A6 I302 C8 I307 C10 I313 D8 I318 D10 I330 D2 I338 E11 I344 E3
F334 A6 I303 C10 I309 C8 I314 D10 I319 D8 I333 D8 I339 E11
F335 A9 I304 B13 I310 D7 I315 D8 I321 E8 I335 C11 I340 E4
F336 A9 I305 C7 I311 D7 I316 D10 I322 E8 I336 D11 I342 C4
11 12 13
GNDSND
5303
22u
3309
10R
2314 2317
1n0
470n
I335
I303 2321 LEFT-
1n0
GNDSND
I307
GNDSND
EMC 2318 RIGHT+
I336
F304 1n0
2V6
2335
1n0
GNDSND
3312 RES
2328 2323
1n0
470n
2325 15n
8V9
GNDSND 5304
I314
22u
3V9 2327 15n
I316
I318
3317
3315 RES 2326
10R
RES
I337
I338
2330 2331 2338
100n 1n0
RES
3327
-12VDAudio
I339 I317 220K
3328
2336 3314
220K
1n0
RES
GNDSND GNDSND
GNDSND
11 12 13
14 15
B3
A
B
TO SUBWOOFER OUT
1302
1
GNDSND 2
3
RES
TO SPEAKERS C
1301
1735446-4
F307
1 LEFT -
F308
2 GND
F310
3
GND
F311
4
RIGHT +
D
TO FLASH&NVM
F332
DC_PROT
I329
7306
BC847BW
E
7307
GNDSND BC847BW
DC-DETECTION
F
H_17740_003.eps
210108
14 15