Alto Dragonfly PM-12 Service Manual page 23

1 2
PH PWR +VCC
R73
R76
C173
6K81 6K81
10N
R9 C114
4R7
1 47u/63V
MIC 5 3
2
C69
4
330P
X28 R221
20K
JY-5042-030G
R10
D
C113
4R7
47u/63V
3c R
4d RN -VCC
C10 R142
LINE IN5
2b TN
22u/35V 6K34
1a T
5e S R141
C9
6K34
22u/35V
X29
C181
JY-6351G-02-250
1n
R213
1K50
R233
MIC GAIN=-10~-60dB
2K49
LINE IN GAIN=+10~-40dB
PH PWR +VCC
R91 R109
C175
6K81 6K81
10N
R40 C168
4R7
47u/63V
1
MIC 6
3
2
C70
4
330P
R224
X30
20K
JY-5042-030G
R42
C115
4R7
47u/63V
C 3c R
4d
RN -VCC
C20 R152
LINE IN6 2b TN
22u/35V 6K34
1a T
5e S C19 R151
6K34
22u/35V
X31
C183
JY-6351G-02-250
1n
R215
1K50
R240
2K49
PH PWR +VCC
R92 R110
C176
6K81
6K81
10N
R41 C169
4R7
1 47u/63V
MIC 7 3
2
C75
4
330P
X32 R227
20K
JY-5042-030G
R45
C170
4R7
47u/63V
3c R
4d RN -VCC
C42 R175
LINE IN7
2b TN
B 22u/35V 6K34
1a T
5e R172
S C25
6K34
22u/35V
X33
C185
JY-6351G-02-250
1n
R217
1K50
R251
2K49
PH PWR +VCC
R139
R140
C179
6K81 6K81
10N
R44 C172
4R7 47u/63V
1
MIC 8 3
2
C76
4
330P
X34 R228
20K
JY-5042-030G
R58
C171
4R7
R 47u/63V
3c
4d RN -VCC
C48 R182
LINE IN8 2b
TN
22u/35V 6K34
1a T
A
5e S C43 R181
6K34
22u/35V
X35
C187
JY-6351G-02-250
1n
R219
1K50
R258
2K49
1 2
3
+VCC +VCC +VCC
R237
2K49
R234 C174 R236 D5 R238
C195
C189 BAS316
2K49 10N 2K49 2K49 22P
1000u/10V
3
TR29 TR31
U16A R271
2
TR30
HR HR
4580M 5K11
HR
3
1
2
R285
10K0
R261 R262
C193 R270
470R 470R
5K11
22P
VR5
O10K
U16B
4580M
5
TR14
7
R39
A1316 R297
TR13 6
4R7 R286 1K3
A1316
10K0
R239
C209
C194
2K49
R214
22P
0.22u/50V
1K50
R269
R235
-VCC
C182
5K11 R293
2K49
1n
62K
-VCC -VCC
+VCC +VCC +VCC
R247
2K49
R241 C177 R244 D6 R249
C199
C190
2K49 10N 2K49 BAS316 2K49
22P
1000u/10V
3
TR34
TR32 U18A R275
2
TR33
HR HR 5K11
4580M
HR
3
1
2
R288
10K0
R263
R264
C197 R274
470R 470R
22P 5K11
VR6
O10K
U18B
4580M
5
TR24
7
R43 R298
A1316
TR15 6
1K3
4R7 R287
A1316
10K0
C212
R248 0.22u/50V
C198
2K49
R216
22P
1K50
R273
R294
R243
C184 -VCC
5K11 62K
1n 2K49
-VCC -VCC
+VCC +VCC R246 +VCC
2K49
R242 C178 R245 D7 R250 C200
C191 BAS316
2K49 10N 2K49 2K49
22P
1000u/10V
3
TR35 TR39
U20A R280
2
TR37
HR HR
4580M 5K11
HR
3
1
2
R290
10K0
R265 R267
C202 R279
470R
470R
5K11
22P
VR7
O10K U20B
4580M
5
TR26
7
R299
A1316 R59
TR25 6
1K3
4R7 R291
A1316
10K0
R256 C215
C204
2K49 0.22u/50V
R218
22P
1K50
R277 R295
R253
C186 -VCC
5K11 62K
2K49
1n
-VCC -VCC
+VCC +VCC +VCC
R255
2K49
R252 C180 R254 D8 R257
C205
2K49 10N 2K49 C192 BAS316 2K49
22P
1000u/10V
3
TR40
TR36
U22A R281
2
TR38
HR HR 5K11
4580M
HR
3
1
2
R289
10K0
R266 R268
C203 R278
470R 470R
22P 5K11
VR8
O10K
U22B
4580M
5
TR28
7
R60 R300
A1316
TR27 6
4R7 R292 1K3
A1316
10K0
C218
R260
0.22u/50V
C208
2K49
R220
22P
1K50
R284 R296
R259 -VCC
C188
5K11 62K
2K49
1n
-VCC -VCC
3
4 5
U17A
4580M C221
47u/25V
1
R222
LO CUT
C196
20K
22P
SW9A
PS-22E85L
PRECH5
PRECH5
R272
5K11
INSERT5
R 3c
C211
SW9B
INS5 RN 4d
0.22u/50V
PS-22E85L
TN 2b
T 1a
C210
R301
0.22u/50V
6K8 R74
5e
S
120R
X13
C222
JY-6351G-02-250
47u/25V
6
7
5
R223
U17B
20K
4580M
U19A
4580M C223
47u/25V
1
R225
LO CUT
C201 20K
22P
SW10A
PS-22E85L
PRECH6
R276 PRECH6
5K11
INSERT6
R 3c
C214
SW10B
INS6 RN 4d
0.22u/50V
PS-22E85L
2b
TN
1a
T
C213 R302
0.22u/50V 6K8
R77
S 5e
120R
X14
C225
JY-6351G-02-250
47u/25V
6
7
5
R226
U19B
20K
4580M
U21A
4580M C224
47u/25V
1
R230
LO CUT
C206
20K
22P
SW11A
PS-22E85L
PRECH7
R282 PRECH7
5K11
INSERT7
R 3c
C217
SW11B
RN 4d
0.22u/50V INS7
PS-22E85L
TN 2b
T 1a
C216
R303
0.22u/50V
6K8 R79
S 5e
120R
X15
C227
JY-6351G-02-250
47u/25V
6
7
5
R231
U21B
20K
4580M
U23A
4580M C226
47u/25V
1
R229
LO CUT
C207
20K
22P SW12A
PS-22E85L
PRECH8
R283 PRECH8
5K11
INSERT8
R 3c
C220
SW12B
INS8 RN 4d
0.22u/50V
PS-22E85L
TN 2b
1a
T
C219 R304
0.22u/50V 6K8
R81
S 5e
120R
X16
C228
JY-6351G-02-250
47u/25V
6
7
5
R232
U23B
20K
4580M
4 5
22
6 7
C229 C231 C233 C235 C237 C239 C241 C243
100N 100N 100N 100N 100N 100N 100N 100N
+VCC
U16C U17C U18C U19C
4580M 4580M 4580M 4580M
-VCC
C230 C232 C234 C236 C238 C240 C242 C244
100N 100N 100N 100N 100N 100N 100N 100N
U16 U17U18U19U20U21U22U23
PRECH5
+VCC
-VCC
PRECH6
PRECH7
+VCC
-VCC
PRECH8
Titel
INPUT STAGE (CH5-CH8)
PCB# PM12PU1.PCB
Size Model No:
A2
Date:
File:
6 7
8
PM12PU1 (2/2)
U20C U21C U22C U23C
4580M 4580M 4580M 4580M
D
(TO PM12MN1)
CN3
2.5-12P
12
GND
11
C
10
GND
9
+VCC
8
GND
7
GND
6
-VCC
5
GND
4
3
GND
2
1
(TO PM12MN1)
CN4
2.5-12P
12
GND
11
10
GND
9
+VCC
8
GND
7
GND
6
-VCC
B
5
GND
4
3
GND
2
1
(TO PM12PU2)
CN5
2.5-4P
PH PWR 1
2
+VCC 3
-VCC 4
A
Revision
ALTO PM12
VER040101
6-Jan-2004 Sheet 2 of 2
PM12PU1.S01 Drawn By: BAO.
8