RAM 2000 Service Manual - page 19
1
2
3
4
5
6
78
A
B
C
D
8
7
6
5
4
3
2
1
D
C
B
A
R
130
10k
R
131
10k
R
141
10k
R
117
10k
C7
3
100p/50V
C5
8
100p/50V
Gs
B
C4
9
10u/50V
C4
7
10u/50V
R2
10k
Gs
B
R
125
47k
Gs
B
+1
5
G1
B
R18
0R33/4W
R19
0R33/4W
D96
MURS160T3
Q2
5
M
JE
15033
Q2
6
MJW21195
Q2
7
MJW21195
R22
0R33/4W
R21
0R33/4W
D126
MURS160T3
Q3
4
M
JE
15032
Q31
MJW21196
Q33
MJW21196
3
2
1
8
4
U6
A
5532
C
140
47u/16V
G1
B
R
330
3k
01
R
326
12k
RV
2
500R
R
329
20k
+1
5
R
325
620R
D
128
1N
4148
D
129
1N
4148
R
328
20k
-1
5
M+
R
267
2k
R
272
39k
C
118
2n2/100V
Q
114
5401
R20
0R33/4W
Q2
8
MJW21195
R23
0R33/4W
Q32
MJW21196
1
2
J17
IN
.B
C5
6
100n/100V
C5
4
220n/50V
C5
7
100n/100V
5
6
7
U6
B
5532
R
101
47k
Gs
B
R145475R
R1401k5
Gs
B
R
124
1k
5
C5
9
470p/50V
R
105
15k
NTC Sense
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J8
Ad
ap
t O
ut
+1
5
-1
5
G1
5
OUT
B
OUT
B
IOUT+B
IOUT
-B
TE
M
P_A
IN
B
S2
A
GA
B
R139NC
26dB
32dB
38dB
C6
8
100p/50V
Gs
B
3
2
1
8
4
U7
A
5532
R
153
4k
7
Gs
B
R
157
1k
5
C7
1
100u/16V
R
154
1k
C7
6
470p/50V
R9
7
12k
R109
100R
GB
R
110
100R
GB
R
108
39k
+1
5
R
132
15k
C7
0
10p/100V
5
6
7
U7
B
5532
R
126
15k
Gs
B
C6
5
22p/50V
R
160
3k
3
+1
5
Q6
2
5551
Q5
7
5401
R
118
7k
5
R
112
1k
GB
C6
6
470p/50V
Q5
6
5551
Q5
5
5551
R
103
1k
5
R
111
1k
5
-1
5
Q6
0
5401
D2
D
LEDB
R9
6
20k
R
107
390k
C51
10u/35V
-1
5
3
14
S3
C
SW
A
B
2
15
S3
B
SW
A
B
1
16
S3
A
SW
A
B
M-
FB
KB
LIMB
ERRORB
3
2
1
8
4
U5
A
L
M
393
R
127
10k
+1
5
R
119
4k
7
R
135
1k
5
D2
B
LEDB
GB
R
134
10k
D
22
1N
4148
C5
3
100n/100V
GB
5
6
7
U5
B
L
M
393
R
114
2k
R
121
4k
7
R
143
47k
R
129
15k
Ga
da
p
ERRORB
R
146
300k
OUT
B
TE
M
P_I
N
B
R
152
3k
3
C6
7
10u/16V
R
100
470k
R
144
75k
GB
-1
5
Q5
9
5401
R
115
1k
5
C6
3
10u/16V
GB
D2
A
LEDB
GB
R9
3
3k
3
GB
+15U
3
-15U
3
+15U
4
-15U
4
+1
5
R
156
100R
C7
2
47u/16V
-1
5
R
116
100R
C6
2
47u/16V
GB
+15U
3
-15U
3
+1
5
R
162
100R
C6
9
47u/16V
-1
5
R
106
100R
C6
0
47u/16V
GB
+15U
4
-15U
4
C6
4
10u/35V
C5
2
10u/35V
GB
GB
+1
5
-1
5
Q6
3
5551
R
120
47k
-1
5
+1
5
R9
8
3k
3
GB
R
113
82k
5
5
12
S3
E
SW
A
B
4
13
S3
D
SW
A
B
Gs
B
R
161
1k
5
BRIDGEA
V
OUT
_B
IOUT
_B
TE
M
PA
_B
CLIP
_B
TE
M
P_B
INB-
INB+
Ga
da
p
CLIP
_I
NB
TE
M
P_I
N
B
TE
M
P_A
IN
B
IOUT
+B
IOUT
-B
OUT
B
1
2 3
J15
Ad
ap
t I
n 4
1 2
3
J16
Ad
ap
t I
n 1
1
2 3
J21
Ad
ap
t I
n 3
1
2
J19
Ad
ap
t I
n 2
t
RT2 NTC 10k
G1
B
R
122
1M
MB
RMSLi
m
LIMB
D2
C
LEDC
M+
D
21
1N
4148
R9
9
20k
GB
Q5
8
5551
GB
R
104
47k
R
136
10k
Q6
5
5401
R
123
100k
+1
5
R
150
3k
92
-1
5
R
163
39k
R
128
1M
-1
5
D
23
1N
4148
Q6
7
MP
SA
13
+1
5
D
28
1N
4148
R
151
100k
-1
5
D2
5
1N
4148
Q6
1
MP
SA
13
+1
5
R
149
2k
7
D
24
1N
4148
MSB
MB
Gs
B
MSB
+1
5
LIMB
CLIP
_I
NB
R
148
100R
R
133
475R
R
155
47k
Q6
6
5401
Q6
8
MP
SA
13
R
159
100k
GB
R
158
680R
GB
+1
5
D2
6
1N
4148
C6
1
100p/50V
C5
5
100u/16V
14
15
13
9
12
16
10
U4
B
L
M
13700M
T1B
T2B
T3B
T4B
T5B
T6B
T7B
T8B
T9B
T10B
T11B
T12B
T14B
T16B
T18B
T27B
T28B
T29
R9
5
4k
7
GB
Q6
4
SST
11
1
R
102
20k
R
147
3k
3
+1
5
C4
6
NC
C5
0
NC
C7
4
NC
R
142
47k
LIMB
2
LIMB
2
-1
5
+1
5
Ga
da
p
Vi
ns
w
B
V
inposB
VI
N
SW
_B
V
INP
OS_
B
VinswB
VinposB
R
262
150k
R
283
330R
R
284
1k
8
R
285
100k
R
287
15k
C
120
10u/35V
D
106
BA
S8
5
Q
118
5551
Q
117
5401
G1
B
R
295
39k
R
296
2k
R
309
330R
R
308
1k
8
R
310
100k
R
311
15k
C130
10u/35V
Q
129
5401
Q
127
5551
D
118
BA
S8
5
D9
4
1N
4148
Q
109
MMB
T
A
42
Q
119
MMB
T
A
92
R
288
12k
R
305
150k
G1
B
C
129
2n2/100V
Q
126
5551
T19B
T20B
T21C
T22B
T24B
R15
0R33/4W
Q2
1
MJW21195
R16
0R33/4W
Q2
2
MJW21195
R17
0R33/4W
Q2
3
MJW21195
R24
0R33/4W
Q37
MJW21196
R25
0R33/4W
Q38
MJW21196
R26
0R33/4W
Q39
MJW21196
Ga
da
p
C7
5
470n/50V
RAM Audio - S
S
1500 - S
2000 - S
3
000 - S
4
000
Channel B
S
chemat
ic
Sh
eet 3 of 5
DW
G No: Ch
an
ne
l B.Sch
DRAWN
DESI
G
N
REPL
ACE
REPL
. BY
Q3
0
M
JF
15030
G1
B
Q3
6
M
JF
15031
+1
5
Q
112
PZ
T2222A
Q
125
PZ
T2907A
R
276
75R
R
263
75R
R
277
4R
7/1W
R
273
22R
/1W
C
121
470p/50V
C
116
470p/50V
C
117
33n/100V
R
268
220R
R
265
10R
/1W
D
105
1N
4148
D9
7
1N
4148
D
103
M
U
R
S160T3
R
299
220R
R
289
10R
/1W
D
116
M
U
R
S160T3
D
117
1N
4148
D
115
1N
4148
C
132
100p/50V
R
266
100R
C
113
100n/100V
R
304
100R
C
124
100n/100V
G1
B
-1
5
Q3
5
IRFI1310N
Q
124
5551
Q
122
5551
Q
123
5551
Q
121
5401
R
300
15k
R
292
47R
R
297
7k
5
R
291
3k
92
R
303
10k
R
294
10k
R298 47k
R293 47k
R
301
47k
R
302
10k
D
112
12V
D
108
15V
D
111
12V
D
109
1N
4148
D
110
1N
4148
D
107
1N
4148
D
114
1N
4148
D
113
1N
4148
C
127
22u/16V
C
131
27p/100V
C
126
1n/100V
Q
120
5401
R
290
NC
R
307
1R
/1W
D9
FF
PF
30U
60S
C
128
100n/100V
OUT
B
C
125
100p/100V
-V
2B
-V
1B
Q2
9
IRFI1310N
R
264
15k
R
280
47R
R
279
10k
R
282
3k
92
R
278
2k
R
281
10k
R
270
47k
R
271
47k
R
274
100k
R
269
47k
R
275
10k
Q
110
5551
Q
113
5551
Q
115
5551
Q
116
5401
Q
111
5401
D
101
15V
D9
2
12V
D9
3
1N
4148
D
100
1N
4148
D
104
1N
4148
D9
5
1N
4148
D9
8
1N
4148
D
102
1N
4148
D9
9
1N
4148
C
122
22u/16V
C
114
27p/100V
C
119
1n/100V
+V
2B
+V
1B
R
286
1R
/1W
D8
FF
PF
30U
60S
C
123
100n/100V
C
115
100p/100V
R
354
475R
+V
2B
R
171
2k
7