RAM 2000 Service Manual - page 10
1
2
3
4
5
6
78
A
B
C
D
8
7
6
5
4
3
2
1
D
C
B
A
R9
5
10k
R8
3
10k
R9
6
10k
R7
3
10k
C6
1
100p/50V
C4
0
100p/50V
Gs
A
C2
4
10u/50V
C1
9
10u/50V
R1
10k
Gs
A
R4
7
47k
Gs
A
+1
5
Q
143
PZ
T2222A
Q
132
PZ
T2907A
R
437
75R
R
450
75R
R
439
4R
7/1W
R
442
22R
/1W
C
196
470p/50V
C
201
470p/50V
G1
A
C
202
33n/100V
R
452
150k
R
432
330R
R
428
1k
8
R
427
100k
R
426
15k
R
448
220R
R
449
10R
/1W
R8
0R33/4W
R9
0R
33/4W
C
203
10u/35V
D
101
BA
S8
5
D
103
1N
4148
D
116
1N
4148
D
107
M
U
R
S160T3
D113
MURS160T3
Q
146
5551
Q
145
5401
Q1
4
M
JE
15033
Q9
MJW21195
Q1
0 MJW21195
G1
A
R
420
39k
R
422
2k
R
404
330R
R
402
1k
8
R
417
220R
R
423
10R
/1W
R5
0R
33/4W
R7
0R
33/4W
R
401
100k
R
397
15k
C191
10u/35V
D9
2
M
U
R
S160T3
D9
0
1N
4148
D9
4
1N
4148
D98
MURS160T3
Q
133
5401
Q2
M
JE
15032
Q3
MJW21196
Q5
MJW21196
Q
134
5551
D8
3
BA
S8
5
3
2
1
8
4
U7
A
5532
C
177
47u/16V
G1
A
D
115
1N
4148
R
382
3k
01
R
399
12k
RV
2
500R
R
383
20k
+1
5
R
398
620R
D8
2
1N
4148
D7
7
1N
4148
R
381
20k
-1
5
C
188
100p/50V
Q
150
MMB
T
A
42
Q
140
MMB
T
A
92
R
421
12k
M+
Q8
M
JF
15030
R
446
100R
C
206
100n/100V
G1
A
+1
5
R
447
2k
R
441
39k
C
204
2n2/100V
Q
147
5401
R1
0
0R33/4W
Q1
1 MJW21195
R
409
100R
C
192
100n/100V
G1
A
-1
5
R
407
150k
G1
A
C
194
2n2/100V
Q
135
5551
R6
0R
33/4W
Q4
MJW21196
1
2
J24
IN
.A
C3
8
100n/100V
C3
5
220n/50V
C3
9
100n/100V
5
6
7
U7
B
5532
R5
6
47k
Gs
A
R109
NC
R94 1k5
Gs
A
R8
2
1k
5
C4
3
470p/50V
R6
4
15k
NTC Sense
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J19
Ad
ap
t O
ut
+1
5
-1
5
G1
5
Ga
da
p
CLIP
_I
NA
TE
M
P_I
N
A
TE
M
P_A
IN
A
IOUT
+A
IOUT
-A
OUT
A
1 2
3
J14
Ad
ap
t I
n 4
1
2 3
J13
Ad
ap
t I
n 1
1 2
3
J7
Ad
ap
t I
n 3
1 2
J10
Ad
ap
t I
n 2
OUT
A
OUT
A
IOUT
+A
IOUT
-A
TE
M
P_A
IN
A
S4
B
GA
B
R93 475R
26dB
32dB
38dB
R4
2
20k
C4
4
100p/50V
Gs
A
3
2
1
8
4
U5
A
5532
R8
4
4k
7
Gs
A
R9
7
1k
5
C4
7
100u/16V
R8
5
1k
C5
7
470p/50V
R
118
12k
R101
100R
GA
R
100
100R
GA
R9
9
39k
+1
5
R6
6
15k
C3
6
10p/100V
5
6
7
U5
B
5532
R4
8
15k
Gs
A
C5
2
22p/50V
R
126
3k
3
+1
5
Q6
4
5551
Q6
0
5401
R6
7
7k
5
R5
9
1k
GA
C5
4
470p/50V
Q5
8
5551
Q5
7
5551
R4
9
1k
5
R5
8
1k
5
-1
5
Q6
5
5401
D1
D
LEDA
R
117
20k
R9
8
390k
C46
10u/35V
-1
5
8
9
S6
H
SW
A
B
7
10
S6
G
SW
A
B
6
11
S6
F
SW
A
B
FB
KA
LIMA
ERRORA
3
2
1
8
4
U6
A
L
M
393
R7
4
10k
+1
5
R6
8
4k
7
R8
7
1k
5
D1
B
LEDA
GA
R
102
10k
D
9
1N
4148
C3
0
100n/100V
GA
5
6
7
U6
B
L
M
393
R6
1
2k
R7
0
4k
7
R
128
47k
R
127
15k
Ga
da
p
ERRORA
R5
7
300k
OUT
A
TE
M
P_I
N
A
R
116
3k
3
C5
5
10u/16V
R5
5
470k
R
108
75k
GA
-1
5
Q6
3
5401
R7
2
1k
5
C4
2
10u/16V
GA
D1
A
LEDA
GA
R3
2
3k
3
+15U
1
-15U
1
+15U
2
-15U
2
+1
5
R
123
100R
C6
4
47u/16V
-1
5
R6
5
100R
C5
1
47u/16V
GA
+15U
1
-15U
1
+1
5
R
110
100R
C4
5
47u/16V
-1
5
R3
1
100R
C2
7
47u/16V
GA
+15U
2
-15U
2
C4
8
10u/35V
C2
9
10u/35V
GA
GA
+1
5
-1
5
R
178
10k
Q8
0
5551
-1
5
R
196
10k
+1
5
SI
GNA
L_
IN
A
SI
GNA
L_
IN
A
Q6
7
5551
R7
5
47k
-1
5
+1
5
R4
3
3k
3
GA
R
60
82k
5
+1
5
BRIDGEA
+V
2A
C
Ga
da
p
Ga
da
p
VR
AI
L
_A
V
OUT
_A
IOUT
_A
TE
M
PA
_A
CLIP
_A
SI
GNA
L_
A
TE
M
P_A
INA-
INA+
t
RT1 NTC 10k
G1
A
M-
MA
R6
9
1M
RMSLi
m
LIMA
D1
C
LEDC
M+
D
7
1N
4148
R4
4
20k
GA
Q6
1
5551
GA
R5
0
47k
R8
9
10k
Q6
9
5401
R7
1
100k
+1
5
R
113
3k
92
-1
5
R
137
39k
D2
4
1N
4148
R8
8
1M
-1
5
D
13
1N
4148
Q7
2
MP
SA
13
+1
5
D
23
1N
4148
R
112
100k
-1
5
D1
5
1N
4148
Q6
6
MP
SA
13
+1
5
R
121
2k
7
D
16
1N
4148
D2
0
1N
4148
LIMA
MSA
MA
Gs
A
MSA
+1
5
LIMA
CLIP
_I
NA
R
111
100R
R8
6
475R
R
119
47k
Q7
1
5401
Q7
4
MP
SA
13
R
125
100k
GA
R
124
680R
GA
+1
5
D1
7
1N
4148
C2
8
100p/50V
C3
1
100u/16V
3
2
4
8
5
1
7
11
6
U8
A
L
M
13700M
-15OTA
1
+15O
TA1
+1
5
R
135
100R
C5
6
47u/16V
-1
5
R
120
100R
C7
2
47u/16V
GB
+15O
TA
1
-15O
TA
1
T1A
T2A
T3A
T4A
T5A
T6A
T7A
T8A
T9A
T10A
T11A
T12A
T14A
T15A
T16A
T18A
T19A
T20A
T21A
T22A
T24A
R4
6
4k
7
GA
B
C
E
Q5
9
SST
11
1
+1
5
R
103
3k
3
C2
5
nc
C2
6
nc
C5
3
nc
R
104
47k
LIMA
2
LIMA
2
-1
5
GA
C6
2
470n/50V
RAM Audio - S
S
3004 - S
4
004- S
4
044
Channel A
S
chemat
ic
Sh
eet 2 of 8
DW
G No: Ch
an
ne
l A.Sch
DRAWN
DESI
G
N
REPL
ACE
REPL
. BY
Q7
IRFI1310N
Q
139
5551
Q
138
5551
Q
137
5551
Q
136
5401
R
419
15k
R
405
47R
R
411
7k
5
R
418
3k
92
R
412
10k
R
416
10k
R414 47k
R415 47k
R
413
47k
R
410
10k
D9
3
12V
D
100
15V
D9
9
12V
D9
1
1N
4148
D8
8
1N
4148
D8
7
1N
4148
D9
7
1N
4148
D9
6
1N
4148
C
193
22u/16V
C
186
27p/100V
C
187
1n/100V
Q
141
5401
R
424
NC
R
406
1R
/1W
D8
9
FF
PF
30U
60S
C
189
100n/100V
OUT
A
C
190
100p/100V
-V
2A
C
-V
1A
C
Q1
3
IRFI1310N
R
431
15k
R
445
47R
R
444
10k
R
443
3k
92
R
440
2k
R
438
10k
R434 47k
R
435
47k
R
429
100k
R433 47k
R
430
10k
Q
144
5551
Q
149
5551
Q
142
5551
Q
151
5401
Q
148
5401
D
112
15V
D
105
12V
D
106
1N
4148
D
117
1N
4148
D
111
1N
4148
D
109
1N
4148
D
108
1N
4148
D
104
1N
4148
D
110
1N
4148
C
205
22u/16V
C
197
27p/100V
C
199
1n/100V
+V
2A
C
+V
1A
C
R
436
1R
/1W
D
102
FF
PF
30U
60S
C
200
100n/100V
C
198
100p/100V
OUT
A
+V
2A
C
Q1
M
JF
15031
R
388
475R