2N5401
Q10B
1K
R133B
2N5551
EBC
2N5401
MPSA06
EBC
MPSA42
#
2u2
63V
C1B
1R
0.5W
R1B
MTP10N15L
MTP23P06
SDG
220K
R6B
10
CLIP_B
MC2
6
10
GNDREF_B
MC2
10
MT1
MT2
G
TRIAC_MAC224
Q48B
16v
10u C45B
10R
R146B
33K
R145B
220K
R10B
7K5
R11B
10
2OHMLIMB
MC2
7
10
+17V
MC2
4
10
LVGND
MC2
3
4K7
R53B
4n7
C21B
10
-17V
MC2
2
MJE350
Q26B
10
SIGNAL_B
MC2
9
MJE340
Q28B
10
ILIMIT_B
MC2
8
D7B
P
MJL1302A
Q32B
CW
4K7
LIN
R115B
1R
R20B
1R
R21B
S
G
D
N
MTP10N15L
Q34B
16v
1W
D55B
1W
16v
D56B
0R10
5W
R113B
0R10
5W
R114B
0R10
5W
R120B
0R10
5W
R116B
MJ21196
Q36B
MJ21196
Q37B
220N250V
C44B
MJ21196
Q38B
MJ21196
Q39B
A42
Q6B
10
TEMPB
MC2
5
MJ21195
Q40B
MJ21195
Q41B
10
RELAY_B
MC2
1
10K
R143B
MJ21195
Q42B
MJ21195
Q43B
P
MJL3281A
Q33B
SHEET OF
YORKVILLE NAME: PCB#&VER:
MODELS: SCH VERSION:
TITLE:
DATE: 23
M1185
CR12
M1185V1.SCH
APR/23/2002
POWER_AMP_B
1.10
P
S
G
DMTP23P06
Q35B
100n
C25B
16v
330u
C7B
249R:1%
R106B
249R:1%
R107B
100n
C24B
BC560
Q13B
BC560
Q14B
BC560
Q15B
D23B
33078
1/2
(4=V-,8V+)
U1B
6
5
7
D9B
22u
10v
C8B
22u
10v
C9B
10R
R22B
17K8
R101B
BC560
Q16B
BC560
Q12B
SLEEVE
OUTPUT
1/4"_VERT_HI-CURRENT
B_OUT_POS
RED
EYEB1
39R
R108B
39R
R109B
1K
R110B
1K
R111B
120v
10u
C6B
MJE340
ECB
MJE350
D22B
100K
R137B
BC550
Q22B
1R
0.5W
R2B
BC550
Q18B
1R
R25B
16v
330u
C15B
100K
R147B
16v 22n
C27B
16v 22n
C28B
100v 1n
C29B
100v 1n5
C30B
200v 3N3
C31B
200v 3N3
C32B
3R9
2W
R122B
470R
R155B
10R
R100B
18V
500mW
D57B
D8B
14V
500mW
D58B
14V
500mW
D59B
MR854
D76B
MR854
D77B
MR854
X78B
2K7
1W
R104B
2N5551
Q8B
MR854
D79B
MR854
D80B
2K7
1W
R103B
VIEW
BOTTOM
BE
YS6900
YS6927
39
470R
R154B
11
10
7
8
6
5
4
39R
R99B
220P
C47B
D19B
D18B
33078
1/2
(4=V-,8V+)
U1B
2
3
1
MJE340
Q31B
470R
R33B
470R
R34B
39R
R35B
47R
R36B
1K
R37B
1K
R38B
249R
R39B
249R
R40B
60K4
R41B
17K8
R42B
17K8
R43B
60K4
R44B
249R
R45B
249R
R46B
39R
R98B
1R
R48B
MJE350
Q30B
MR854
D81B
470R
R49B
470R
R50B
BAV21
D17B
D28B
68R
R97B
50V
4N7
C33B
D13B
D14B
D15B
D16B
100K
R148B
68R
R96B
75R
R112B
10V
33u
C19B
75R
R94B
BC550
Q23B
220R
R47B
4K7
R150B
A42
Q7B
BC550
Q19B
BC550
Q20B
BC550
Q21B
D12B
D11B D10B
D27B
1B
BAV21
D20B
BAV21
D21B
BP-
2K
R93B
249R
R32B
249R
R31B
2K
R91B
330u
16v
C3B
33U10V
C18B
47K
R30B
BP+
10K0
R29B
400V
22N
C34B
120v
1N5
C35B
1K
R90B
1K
R89B
120v
10u
C2B
10p
200v
C23B
1n
C36B
1n
C37B
3K01
R26B
X26B
BC550C
CBE
BC560C
75R
R24B
10K0
R23B
D25B
14K7
R58B
MT1
G
MT2
MBS4992
Q49B
14K7
R59B
D24B
MJL1302A
MJL3281A
ECB
1N4732A
1WATT
4V7
D67B
4K7
R61B
4K7
R62B
3K3
R63B
3K3
R64B
2R2
R65B
2R2
R66B
68R
R67B
10K0
R68B
249R
R69B
39R
R70B
10K0
R71B
47K
R72B
22R
R73B
39R
R74B
39R
R75B
15K
R76B
15K
R77B
3K3
R78B
150R
R79B
150R
R80B
2R2
R81B
2R2
R82B
249R
R83B
10p
200v
C22B
4K7
R88B
75R
R105B
BC560
Q11B
MJE340
Q29B
4K7
R87B
4K7
R86B
22u
10v
C13B
22u
10v
C12B
B_OUT_GND
BROWN
EYEB2
22u
25V
C11B
22u
25V
C10B
4K7
R85B
5K6
R84B
220N250V
C46B
220R
R95B
MJE350
Q27B
1K5
R57B
1K5
R56B
5K6
R55B
4uH
L1B
5R6
5W
R117B
1K2
5W
R118B
1K2
5W
R119B
10R
R7B
2N5401
Q9B
1R
0.5W
R5B
10
9
8
7
6
5
4
3
2
1
# DESCRIPTION OF CHANGEVER#DATE
MODEL(S):-
D
D
D
D
D
D
D
D
APR/23/02
JAN/2002
V
V
V
V
V
V
V
V
1.10
1.00
N
N
N
N
N
N
N
N
CORRECT_R155B,C43B
PILOTRUN
CR12
M1185.SCH_DATABASE_HISTORY
T
10K
THERM1
21
BAV21
D1B
BAV21
D4B
220P.
C43B
100K
R139B
100K
R136B
100K
R138B
47K
R140B
100K
R135B
500mW
5V1
D30B
500mW
5V1
D29B
D6B
D5B
2N5401
Q45B
A06
Q47B
499K
R134B
1K91
R132B
64K9
R130B
100R0
R131B
27K
R14B
100K
R144B
BAV21
D3B
COLOR
A42
Q44B
47K
R92B
2N5551
Q46B
20K
R142B
1K54
R141B
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
TP5TP5
VH+
VH+
VH+
VH+
VH+
VH-
VH-
VH-
VH-
TP9
TP9
TP9
2OHMLIMB
CLIP_B
CLIP_B
TP1B
TP4
R+
TP10
TP10
TP10
PSGND
PSGND
+17V
+17V
+17V
VM+
VM+
VM+
VM-
VM-
VM-
O/PGND_B
O/PGND_B
TP3
-17V
-17V
-17V
TP6
ILIMIT_B
FP
FP
FP
+96V
-96V
+96V
+44V
+96V
-44V
-96V
-96V
+44V
-44V
-96V
-44V
+44V
+96V
TEST POINTS
TP11
TOP CHANNEL B
CHANNEL B VOLTAGE AMPLIFIER
4ma
AMP. B CLIP SENSE
2 OHM LIMIT SENSE
**ALL UNMARKED DIODES ARE 1N4148**
CR12-M1185
B OUTPUT
3mV ACROSS TEST POINTS 9 @ 10
OUTPUT
AMPLIFIER
Dc Protection
POWER AMPLIFIER BOARD
TESTPOINT:
Current Limit
Current Amplifier
WHEN THE AMPLIFIER IS COLD
BIAS ADJUSTMENT: ADJUST TRIM POT R115 FOR
BINDING POSTS
14ma
60mA IDLE
4 WATTS4 WATTS
RED