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Philips MC-70/21 Service Manual page 82

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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
PAINEL COMBI - SEÇÃO AMPLIFICADOR
1302
6325
+50V
1
47V
+50
2
1N4003
23V
B1
B1
A
3
GND
4
35V
A1
A1
5
GND
6
A1
7
17V
A2
C1
8
GND
9
A2
EH-B
B
AMPLIFICADOR BUFFER
C
5,6V
3709
2708
VOL_LEFT
5,6V
470R
1u
+12V_A
D
3701
2701
VOL_RIGHT
E
5,6V
470R
1u
5,6V
2051
100n
F
1004 1
3073
2
470R
-0,5..-2,5V
0,7V
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
MUTE
I
.....V measured with headphone
.....V measured without headphone
A
1
2
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
6
3707
27K
AMP_LEFT
2707
100p
2K2
6
-0,5..-2,5V
3379
2046
5,6V
AMP_LEFT
7
5
100u
7700-B
NJM4556AM
3713
5700
11,2V
2u2
10R
7700-A
3
8
NJM4556AM
2033
5,6V
AMP_RIGHT
1
100u
2
4
GND_A
AMP_ON
2706
100p
3705
27K
SUB_W
AMP_RIGHT
2K2
AMP_MUTE
3081
7013
+5V
2K2
BC857B
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
BC817-25
0,7V
7009
7000
BC857B
+5V
4,9V
-0,2..-1,5V
4,8V
3035
4,8V
MUTE_HP
4,2V
10K
3
4
5
6
3077
F2
3107
H14
3309
A10
3328
B12
3079
G4
3300
F7
3310
E10
3329
C13
3081
G3
3301
A7
3311
B10
3331
A13
3082
G3
3302
E7
3312
F10
3336
B7
3094
I13
3303
A8
3314
A14
3337
F8
3095
I13
3304
E7
3315
A12
3340
D13
3096
E4
3305
C6
3318
A13
3341
E13
3097
D4
3306
F7
3323
C13
3342
D12
3105
C2
3307
C8
3326
B12
3353
C7
3106
C2
3308
G8
3327
A12
3364
C12
7
8
9
1301
F3.15AL
7301
3301
AN7591
2
12
11
NF2
VCC
B2
220R
INPUT
DRIVER
SEPP OUTP
CIRCUIT
CIRCUIT
CIRCUIT
6
STBY
4,4V
RIPPLE
PROTECTION
1
RF
FILTER
CIRCUITS
15,6V
4
NF1
INPUT
DRIVER
SEPP OUTP
CIRCUIT
1,3V
CIRCUIT
CIRCUIT
IN
GND1
GND2
B1
Power Amplifier
5
3
9
8
0V
0V
0V
14V
3336
5K6
2315
6311
4n7
1N4003
3305
9261
470R
C1
0V
MUTE
7328
0V
ESTÁGIO DE POTÊNCIA
BC817-25
6323
1N4148
1300
F3.15AL
3302
220R
7302
AN7591
2
12
11
NF2
VCC
B2
INPUT
DRIVER
SEPP OUTP
CIRCUIT
CIRCUIT
CIRCUIT
3300
6 STBY
4,4V
RIPPLE
PROTECTION
3K9
1 RF
FILTER
CIRCUITS
15,6V
4 NF1
INPUT
DRIVER
SEPP OUTP
1,3V
CIRCUIT
CIRCUIT
CIRCUIT
IN
GND1
GND2
B1
Power Amplifier
5
3
9
8
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
(Source Sel. 1018)
3046
6003
9214
5K6
5,4V
3053
7010
0V
BC847B
7
8
9
3365
D12
3707
C3
5303
A10
6307
B13
3366
C13
3709
D2
5700
D3
6308
B11
3367
C14
3711
D2
6002
H14
6311
B9
3379
C6
3712
D2
6003
H8
6315
D14
3380
G7
3713
D4
6300
E12
6323
D7
3700
E2
3714
D2
6301
E13
6324
D7
3701
E2
3715
H11
6302
E12
6325
A2
3704
E2
5300
F10
6303
E13
6328
C13
3705
F3
5301
B10
6304
A11
6332
A13
3706
D2
5302
E10
6306
B14
7000
H4
10
11
12
C1
B1
47V
7307
47V
BC856B
A1
3309
16,7V
O2 10
4R7
STP16NE06
8,3V
5303
7304
1u
7309
5301
STP16NE06
3328
16,7V
1u
O1 7
3311
4K7
8,3V
4R7
3326
4K7
6307
0300
CHAVES SUPER-G
BZX79-B3V9
2300
10u
7313
0V
BC857B
3342
0,6V
1,6V
10K
7300
BC847B
3310
O2
10
4R7
8,3V
5302
1u
2318
2317
5300
100n
100n
1u
O1
7
3312
8,3V
4R7
M62320FP
7005
AMP_ON
4
0V=Amplifier switched off
5V=Amplifier active
D0
MUTE_SW
5
0V=Amplifier and Subwoofer muted
5V=Amplifier and Subwooferactive
D1
6
HP_DET
0V=hedphone detected
5V=no headphone detected
D2
7
0V=hedphone muted
MUTE_HP
5V=headphone active
D3
MIC_DET
0V
9
D4
10
D5
11
MUTE_LINE
0V
D6
12
+5V CD ON
0V
D7
8
13
3
5V
3059
GND_D
3,8V
2K2
10
11
12
7004
H2
7302
E8
7700-A E3
7005
G12
7304
A13
7700-B D3
7006
I8
7307
A12
9214
I7
7009
H3
7308
B14
9261
C9
7010
I9
7309
B12
7011
G2
7310
B13
7012
G3
7313
D13
7013
G4
7326
C12
7300
D11
7328
C6
7301
A8
7329
G7
13
14
+50V
3318
A
3K3
46,7V
46,9V
BC856B
7310
B
7308
7,5V
BC847B
13V
C
CL_DET
(Source Selector part)
7,7V
D
1307-B
4
E
LEFT
3
2
RIGHT
1
YKD21-0026
1307-A
F
1
G
0V
+5V
14
CS2
15
CS1
16
H
CS0
2
3,8V
I
Power2001 40W SuperG Combi-Amplifier Part 2001 02 21
13
14

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