Philips MC-70 Service Manual page 83

0300 C10 2033 E5 2070 I14 2309 A9
1004 F1 2038 H2 2300 D9 2310 E9
1014 G1 2045 H2 2301 A7 2311 A10
1300 E9 2046 C5 2302 E7 2312 E10
1301 A9 2051 F1 2303 A7 2313 B10
1302 A1 2055 F4 2304 E7 2314 F10
1307-A F14 2057 F2 2305 A7 2315 B9
1307-B E14 2058 G4 2306 E7 2316 G9
1315 B1 2061 I13 2307 C8 2317 F13
2032 I5 2062 I13 2308 G8 2318 F12
1 2
COMBI BOARD
AMPLIFIER PART
1302
6325
1
47V
+50
1N4003
2 23V
B1
B1
A
3
GND
4 35V
A1
A1
5
GND
6
A1
7
17V
C1
A2
8
GND
9
A2
EH-B
B
BUFFER AMPLIFIER
C
3709
2708
VOL_LEFT
1u 470R
+12V_A
D
3701
2701
VOL_RIGHT
E
470R
1u
2051
100n
F
1004 1
3073
2
470R
3
YKC21-3416
7012
BC817-25
7011
BC817-25
MUTE
G
-0,5..-2,5V
0,7V
.....V measured in MUTE off
.....V measured in MUTE active
1014
HP_DET
HP_DET
4
HP_RIGHT
3
GND_A
GND_A
2
H
HP_LEFT
1
FE-BT-VK-N
-0,2..-1,5V
BC817-25 0,7V
7004
I
.....V measured with headphone
.....V measured without headphone
A
1 2
11-9
2319 F13 2341 A3 2715 D4 3046 H7
2320 F12 2700 E3 2716 D1 3048 I8
2321 F13 2701 E1 3014 G2 3053 I8
2322 F12 2702 E3 3028 I5 3057 H4
2324 B14 2706 F3 3031 H10 3059 I10
2333 F7 2707 C3 3032 H4 3062 I9
2334 B1 2708 D1 3033 H4 3065 H5
2335 B2 2709 C3 3034 H10 3066 H5
2336 B2 2713 D3 3035 I5 3071 G4
2340 C14 2714 E3 3042 H3 3073 F2
3 4 5
+50V
3707
27K
AMP_LEFT
2707
100p
6
2046
5,6V
5,6V AMP_LEFT
7
5 100u
7700-B
5,6V
NJM4556AM
3713
5700
11,2V
2u2
10R
7700-A
3
8
NJM4556AM
5,6V 2033
5,6V AMP_RIGHT
1
100u
2
5,6V 4
GND_A
2706
100p
3705
27K
SUB_W
-0,5..-2,5V
0,7V 2K2
AMP_MUTE
3081
7013
+5V
BC857B
2K2 4,9V
-0,5..-2,5V
3082
4,8V
3071
4,8V MUTE_SW
4,2V
10K
39R 39R
3033 3032
39R 39R
3066 3065
-0,2..-1,5V
0,7V
BC817-25
7009
7000
+5V
BC857B
4,9V
-0,2..-1,5V
4,8V
MUTE
3035
4,8V MUTE_HP
4,2V
10K
3 4 5
3077 F2 3107 H14 3309 A10 3328
3079 G4 3300 F7 3310 E10 3329
3081 G3 3301 A7 3311 B10 3331
3082 G3 3302 E7 3312 F10 3336
3094 I13 3303 A8 3314 A14 3337
3095 I13 3304 E7 3315 A12 3340
3096 E4 3305 C6 3318 A13 3341
3097 D4 3306 F7 3323 C13 3342
3105 C2 3307 C8 3326 B12 3353
3106 C2 3308 G8 3327 A12 3364
6 7 8 9
1301
F3.15AL
7301
3301
AN7591 2 12
220R NF2 VCC
INPUT DRIVER
CIRCUIT CIRCUIT
6 STBY
4,4V RIPPLE PROTECTION
1 RF
FILTER
CIRCUITS
15,6V
4 NF1
INPUT DRIVER
1,3V CIRCUIT CIRCUIT
IN GND1 GND2
Power Amplifier
5 3 9
0V 0V 0V
3336
5K6 2315
4n7
3305
470R
C1
0V
2K2
MUTE
-0,5..-2,5V
3379
7328
0V
BC817-25 POWER STAGE
6323
1N4148
1300
F3.15AL
3302
220R
7302
AN7591 2 12
NF2 VCC
INPUT DRIVER
CIRCUIT CIRCUIT
3300
AMP_ON 6 STBY
RIPPLE PROTECTION
4,4V
3K9
1 RF
FILTER
CIRCUITS
15,6V
4 NF1
INPUT DRIVER
1,3V CIRCUIT CIRCUIT
IN GND1 GND2
Power Amplifier
5 3 9
AMP_RIGHT 3306 3337
470R 5K6
0V
2K2
MUTE
-0,5..-2,5V
3380
2316
7329
0V
BC817-25
4n7
BC807-25
2R2
1N4148
0V 7006 5,4V
+5V_CD +5V6
3046
(Source Sel. 1018)
6003
9214
5K6
5,4V
3053
7010
BC847B
6 7 8 9
11-9
B12 3365 D12 3707 C3 5303 A10 6307
C13 3366 C13 3709 D2 5700 D3 6308
A13 3367 C14 3711 D2 6002 H14 6311
B7 3379 C6 3712 D2 6003 H8 6315
F8 3380 G7 3713 D4 6300 E12 6323
D13 3700 E2 3714 D2 6301 E13 6324
E13 3701 E2 3715 H11 6302 E12 6325
D12 3704 E2 5300 F10 6303 E13 6328
3705 F3 5301 B10 6304 A11 6332
C7
C12 3706 D2 5302 E10 6306 B14 7000
10 11 12
C1 B1
47V
7307
47V
BC856B
11
A1
B2 3309 16,7V
SEPP OUTP O2 10
4R7
CIRCUIT 8,3V
5303
1u
7309
5301
STP16NE06
1u
O1 7
SEPP OUTP
3311
CIRCUIT 8,3V
4R7
B1
3326
8
14V
4K7
6311
0300
SUPER-G SWITCHES
1N4003
9261
2300
10u
0V
3342
0,6V
10K
7300
BC847B
11
B2
3310
SEPP OUTP O2 10
4R7
CIRCUIT 8,3V
5302
1u
2318
5300
100n
1u
O1 7
SEPP OUTP
3312
CIRCUIT 8,3V
4R7
B1
8
AMP_ON 4
0V=Amplifier switched off
5V=Amplifier active
MUTE_SW 5
0V=Amplifier and Subwoofer muted
5V=Amplifier and Subwooferactive
6
HP_DET
0V=hedphone detected
5V=no headphone detected
7
MUTE_HP
0V=hedphone muted
5V=headphone active
MIC_DET 0V 9
10
MUTE_LINE 11
0V
12
+5V CD ON 0V
3059
0V
2K2
10 11 12
B13 7004 H2 7302 E8 7700-A E3
B11 7005 G12 7304 A13 7700-B D3
B9 7006 I8 7307 A12 9214 I7
D14 7009 H3 7308 B14 9261 C9
D7 7010 I9 7309 B12
D7 7011 G2 7310 B13
A2 7012 G3 7313 D13
C13 7013 G4 7326 C12
A13 7300 D11 7328 C6
H4 7301 A8 7329 G7
13 14
+50V
3318
A
3K3
STP16NE06
7304
46,7V
46,9V
3328
BC856B
16,7V
7310
4K7
B
7308 7,5V
BC847B
13V
6307
BZX79-B3V9
C
CL_DET
(Source Selector part)
7313
7,7V
BC857B
1,6V D
1307-B
4 E
LEFT
3
2
RIGHT
1
YKD21-0026
2317 1307-A
100n
F
M62320FP
7005 1 G
0V
D0
+5V
D1
D2
D3
14
D4 CS2
15
D5 CS1
16 H
D6 CS0
D7
8 13 3 2
5V
GND_D
3,8V 3,8V
I
Power2001 40W SuperG Combi-Amplifier Part 2001 02 21
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