Combi Board - Philips MC-200 Service Manual

10 - 2
T DIAGRAM - COMBI BOARD (Part 2)
3 2331 E4 2334 D5 2337 E9 2340 D9 2343 B11 2346 E12 2349 H10 2353 H7
3 2332 D4 2335 E5 2338 D9 2341 A11 2344 B11 2347 F11 2351 B6 2354 H8
7 2333 E5 2336 D5 2339 F9 2342 B11 2345 D12 2348 F10 2352 I5 2355 C8
1 2 3

COMBI BOARD

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