Philips MC-200 Service Manual page 25

CIRCUIT DIAGRAM - COMBI BOARD (Part 2)
1330 A13 2331 E4 2334 D5 2337 E9 2340 D9 2343 B11 2346 E12
1331 D13 2332 D4 2335 E5 2338 D9 2341 A11 2344 B11 2347 F11
2330 C7 2333 E5 2336 D5 2339 F9 2342 B11 2345 D12 2348 F10
1 2 3
COMBI BOARD
Power amplifier part
A
MUTE
B
C
D
from
Source Selection and Sound Control Part
E
F
*
Item
3339 3341
2355
3362 3363
3340 3342
Model
G
MC-1xx 100u 68 4K7 1K8 10K
MC-200 120 560
H
I
1 2 3
10 - 2
2349 H10 2353 H7 3331 E5 3334 D5 3337 F9 3340 B10 3343 E9 3346 D9
2351 B6 2354 H8 3332 D5 3335 E9 3338 D9 3341 B11 3344 D9 3347 G8
2352 I5 2355 C8 3333 E5 3336 D9 3339 A10 3342 B11 3345 F9 3348 G7
4 5 6
4335
+5V6
3356
(forseen only)
22K
T330
3358
3354 4K7
2351
10K
4u7
7334
BC847B
(forseen only) 7330
2334 AN7125
150n
T344 2332 3332
R
10K 4334
150n 6 IN1
0V
3334 2336
3.1V
6K8 220p
3.25V
(forseen only)
0V
5 STB
0/2.2V
9 MUTE
(forseen only)
2333
0V 8 IN2
150n
T343 2331 3331
L
4333
10K
150n
3333 2335
6K8 220p
(forseen
only)
3364 3365 6334 7335
BZX55-B11 BDW93CFP
390 270
MC148
7.2V
T336
T331
6333
3359 3361
STANDBY
1N4148 6K8 100R
2352 3360
100K
47u
4 5 6
3349 G7 3352 G11 3356 B5 3360 I5 3363 C7 4333 E5 5331 E9
3350 I7 3353 G10 3358 B5 3361 H6 3364 B8 4334 D5 5332 D9
3351 G11 3354 B4 3359 H5 3362 B8 3365 B9 4335 A5 5333 E9
7 8 9
(MC148)
9330
+AMP
9.8V
*
9.9V
BDW93CFP
7335
10.4V
11.1V
11V 11.1V
11V
* * *
11.1V
3362 3364 3365
* 11V
3363
2330
1K8 390R 270R
10K
4u7
*
*
6334
2355
100u BZX55-B11
(MC118)
T333
T332
5334
360n
3346
2340
3338
10K 220n
1
MC148
2R2
VCC
5.8V
5332
OUT1+ 2 4.7V
3344
360n
3
GND1
10K
MC148
3336
4 5.8V
OUT1- 4.7V
2338
2R2
220n
STB
VREF
MUTE
MC148
5331
5.8V
OUT2- 10 4.7V
360n
GND2 11
MC148
3343
3335
OUT2+ 12 4.7V 5.8V
10K
2337
2R2
220n
GND
5333
7
3345
360n
10K
3337
2R2
2339
220n
+12V +12V
POWERSTAGE
PROTECTION
3348 3347
22K
22K
3349
47K
T334
BC857B BC857B
MC148
BASS_ALC
7332 7331
7.2V
to 3547/3548
6.2V 6.2V
T335
DIGITAL SOUND
CONTROL (DSC)
2353 2354
0V
680p 680p
7333
BC847B
3350 (230V MAINS SUPPLY ) DC VOLTAGES MEASURED IN :
47K
V
V
V
V
7 8 9
10 - 2
5334 C9 6333 H5 7331 G8 7334 B4 T330 B6 T333 C7 T336 H6 T339 D13
6331 G11 6334 C8 7332 G7 7335 B8 T331 H6 T334 G10 T337 B12 T340 E13
6332 G10 7330 D6 7333 H7 9330 B8 T332 C7 T335 H8 T338 B12 T341 E13
10 11 12 13
HEADPHONE SOCKET
* 2341
3339
7
1330
68R
47u
*
L 4
3341
2343
4K7
1n
T337
3
L
2
* R
T338 5
3342
2344
4K7
1n
R 6
*
2342
3340
1
68R 47u
1331
T339
2345 L 1
22n
T341
L 2
T342 3
R
T340 4
2346 R
22n
Clickfit
socket
2348 2347
47u
47u
6332 6331
1N4148
1N4148
3352 3351
3353
1K 1K
47R
2349
100u
CD Mode 1KHz , 0dB track, DSC "OPTIMAL", DBB "OFF", INCR "OFF", VOLUME "20"
Tuner Mode 1KHz , df "22.5kHz", DSC "OPTIMAL", DBB "OFF", INCR "OFF", VOLUME "20"
Standby Mode
MUTE OFF/ON
10 11 12 13
T342 E13
T343 E4
T344 D4
14 15
A
16 - 150 ohm
B
C
D
LS BOX
8R
left
LS BOX
8R
right
E
F
G
H
I
14 15