Philips MC-100 Service Manual page 23

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CIRCUIT DIAGRAM - COMBI BOARD (Part 2)
1330 A13 2331 E4 2334 D5 2337 E9 2340 D9
1331 D13 2332 D4 2335 E5 2338 D9 2341 A11
2330 C7 2333 E5 2336 D5 2339 F9 2342 B11
1 2
COMBI BOARD
Power amplifier part
A
B
C
D
from
Source Selection and Sound Control Part
E
F
*
Item
3339 3341
2355
3340 3342
Model
G MC-1xx 100u 68 4K7
MC-200
120 560
H
I
1 2
10 - 2
2343 B11 2346 E12 2349 H10 2353 H7 3331 E5 3334 D5 3337 F9 3340 B10
2344 B11 2347 F11 2351 B6 2354 H8 3332 D5 3335 E9 3338 D9 3341 B11
2345 D12 2348 F10 2352 I5 2355 C8 3333 E5 3336 D9 3339 A10 3342 B11
3 4 5
4335
MUTE
+5V6
3356
(forseen only)
22K
3358
3354 4K7
10K
7334
BC847B
(forseen only)
2334
150n
T344 2332 3332
R
10K 4334
150n
3334 2336
6K8 220p
(forseen only)
(forseen only)
2333
150n
T343 2331 3331
L
4333
150n 10K
2335
3333
6K8 220p
(forseen
only)
3364 3365 6334 7335
3362 3363
390 270 BZX55-B11 BDW93CFP
1K8 10K
T331
6333
3359 3361
STANDBY
1N4148 6K8 100R
2352 3360
47u 100K
3 4 5
3343 E9 3346 D9 3349 G7 3352 G11 3356 B5 3360 I5 3363 C7 4333 E5
3344 D9 3347 G8 3350 I7 3353 G10 3358 B5 3361 H6 3364 B8 4334 D5
3345 F9 3348 G7 3351 G11 3354 B4 3359 H5 3362 B8 3365 B9 4335 A5
6 7 8 9
(MC148)
9330
9.8V
*
9.9V
BDW93CFP
T330 10.4V 7335
11.1V
11V 11.1V
2351 11V
* * *
11.1V
4u7
3362 3364 3365
* 11V
3363
2330
1K8 390R 270R
10K
4u7
*
*
6334
2355
100u BZX55-B11
(MC118)
T333
T332
3346
7330
10K
AN7125
1
MC148
VCC
5.8V
2 4.7V
OUT1+
3344
6 IN1 3
0V GND1
10K
MC148
OUT1- 4 5.8V
3.1V 4.7V
3.25V
0V
5 STB
STB
VREF
0/2.2V
9
MUTE
MUTE
MC148
OUT2- 10 4.7V 5.8V
0V 8 IN2 GND2 11
MC148
3343
OUT2+ 12 4.7V 5.8V
10K
GND
7
3345
10K
+12V +12V
POWERSTAGE
PROTECTION
3348 3347
22K
22K
3349
47K
BC857B BC857B MC148
MC148 7332 7331 7.2V
7.2V
6.2V 6.2V
T336 T335
2353 2354
0V
680p
680p
7333
BC847B
3350
47K
6 7 8 9
Digitized in Heiloo Netherlands
10 - 2
5331 E9 5334 C9 6333 H5 7331 G8 7334 B4 T330 B6 T333 C7
5332 D9 6331 G11 6334 C8 7332 G7 7335 B8 T331 H6 T334 G10
5333 E9 6332 G10 7330 D6 7333 H7 9330 B8 T332 C7 T335 H8
10 11 12
HEADPHONE SOCKET
*
2341
3339
68R 47u
*
L
3341
2343
4K7
1n
+AMP T337
L
*
R
T338
3342
2344
4K7
1n
R
*
2342
3340
68R
47u
5334
360n
2340
3338
220n
2R2
5332
360n
3336
2338 2345
2R2
220n 22n
2346
5331
22n
360n
3335
2337
2R2
220n
5333
360n
3337
2R2
2339
220n
2348 2347
47u 47u
6332 6331
1N4148
1N4148
3352 3351
T334 3353
1K 1K
BASS_ALC
47R
to 3547/3548
DIGITAL SOUND
2349
CONTROL (DSC)
100u
(230V MAINS SUPPLY ) DC VOLTAGES MEASURED IN :
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
10 11 12
1/11/2018
T336 H6 T339 D13 T342 E13
T337 B12 T340 E13 T343 E4
T338 B12 T341 E13 T344 D4
13 14 15
7
1330
4
3
16 - 150 ohm
2
5
6
1
1331
T339
1
L
LS BOX
T341
2 8R
L
left
T342 3
R
LS BOX
T340 4 8R
R
right
Clickfit
socket
13 14 15
A
B
C
D
E
F
G
H
I