Text preview for : ampeg pwa-dsp rfx65 guitar amp.pdf part of Ampeg RFX65 RFX65 amplifier
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A
+16V D1
B
C
OVERDRIVE GAIN
CW
D DISTORTION CHANNEL
E
C18
.0056 100V
F
C24
2.2
J1 {Label}
1N914
TP2
R11
2.2K
C3
.0068 100V
C6
10 35V
R5
15K
P1
10K L
R14
4.7K
S D
Q3
G
C2 C15
S
R22
4.7K
J175
TP4
6 5
R29 C30 R51
1M
CW
TP1
D2 R4
680K
3 5 1 2 7 6
R10
10K
D
1N914
2.2
IC2:B
7
C19
4.7K
C17
.22
1
.047 100V
R6 C8 -16V C9 +40V
.22 6.8K
C1
.47
IC1:A TLO-72 R7
22K
IC1:B TLO-72 C2
.0033 100V
C7
1
R18 R12
10K 1.5K
2 3
B IC2:A
1
G D
Q2
J175
TLO-72 D6
R21
47K
D10
1N914
R38
1K
.0047 100V
HIGH C25
P5
C13
.01 100V
1
P3
CW
3 2
R44
1.5K
1
B2
TLO-72 C71 D4
1N746 3.3V
S
Q8
2N5210
10K L .22
IC3:A TLO-72 C27
.015
10K L
SHAPE R106 Q7
D S G
TP3
D3
1N746 3.3V
1N914
R2
J18
3 2 1
22K
R111 +16V
220
.0033 100V
R16
4.7K
R17
4.7K
R28
47K
D9
1N914
R30
10K
.47
CW
R43 P4
10K A 22K
LOW C23 C20
1 1
CW
C31
.1 50V
1M
TP5
R3
22K
P2
10K L 2N5210
CW
R34 Q6 R26
22K 47K
R45
4.7K
C62
100 35V DASH 03 & 04
J175
D16 C81
.01 100V 1N914
Q4 R9
680
R1
1.5K
TO TUNER
ONLY
A
SOLO GAIN
MID
P13
500 A
R41
2.2K
G
D
GND-CH C4 TP 1 2 3 4 CONDITION "A" .48Vpp 18Vpp 7.2Vpp 5Vpp 9.8Vpp 3.3Vpp 9.8Vpp 4.8Vpp 30Vpp CONDITION "B" .48Vpp 5.2Vpp 6.2Vpp 5.2Vpp 8Vpp 3.2Vpp 5Vpp 2.5Vpp 30Vpp 3.6Vpp 3Vpp 1.5Vpp 30Vpp
56 pF 200V
J112
JOW2 C2
CW
C10
.015
CONDITION "C" .48Vpp 5.2Vpp .18Vpp R80
6.8K
.22
R113 C82
1M
C
C5 I C56
.0015 100V
CW
Q1 R8
1M
D S G
.1
SOLO LEVEL B
CW
P12
10K A
R112
10K
OVERDRIVE LEVEL P6
10K A
.01 100V
C68
R57 2_PWRAMP
15K
G D S
J175
R72
12K C52 .047 100V
R109
4.7K
TP8
Q29
J175
G D S G
T
.22
R73 B
R77
47K
2 3
P10 HIGH C46
2.2
CW
Q25 D
J175 S
TP7
100K
IC4:A
1
R99 R
2.2K
R48
27K
C33
.001 100V
C38
.001 100V J175
10K L
R76
10K
TLO-72 R89
6 5
Q16
2
C49 Q21
S
R78
22K
5 6 7 8 9*
CLEAN CHANNEL
LOW P8
10K A
6 5 7
R52
10K
1
IC4:B
7
2
47K
Q31
2N5087
C32
2.2
R47
4.7K
R59
47K
D
G
A C53
56 pF 200V
TLO-72 C50
.001 100V
IC3:B P7 R64
47K
J112
R56 C60 D20
.0022 100V 47K
C47
1
TLO-72 R42
CW
D39
1N754
TP6
100K RA
P9 MID
500 A
150K
LEVEL
CW
+16V
S D
C29
R75
47K
1N914
R118
10K
Q24
G
R68 +16V
1M
J175
R46
1K
C34
2.2
R58
10K
D
C42
2.2
R84
100K
J2
R115
47K
R91
22K
5 7
R116
47K
3
R82
0
6
IC5:B TLO-72 R90 R94
0 47K
3
JOW1
REPLACE WITH JUMPERS ON DSP VERSIONS E'
J112
3 1 2 D S
R92
10K
1
J10
IC5:A TLO-72 R88
0
2 3 4
E
G
Q26
I J11 D34
1N4002 100V PIV
5
REPLACE WITH JUMPER ON DSP VERSIONS
R107 D32
1N4002 100V PIV 10 1/2W
2 1 0
REV
5-18-04 6/26/03 11/27/02 Date
ADDED TUNER CIRCUIT FOR DASH 03 AND 04 CHG'D C36 FROM .1 TO .O1 UF . CONTROL ISSUE
N01496 N01177
RLB REM
6
CAUTION: THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
DESCRIPTION
Ecr(s)/Ecn(s)
Chgd By
Appvd by
Date
D33
1N4002 100V PIV
D31
1N4002 100V PIV
1000 16V
C64
C63
.1 100V
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC
Signatures:
Drawn: Checked: Released:
Plot Date: Tue May 18, 2004 Drawing Size: Plot Time:
Date:
REM 8/30/02 First Used On:
4
NOTES: 1) CAUTION: SHOCK HAZARD!! THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE TOUCHING INTERNAL PARTS. 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE AND 10 MEGOHM DIGITAL VOLTMETER.
J8
4
C
NONE 2
Drawing Title:
Drawing Type: Schematic Class Code: Sheet 1 of
PWA - DSP GUITAR AMP
Drawing Number:
Tolerance:
07S195-XX F
A
B
C
D
E
A
B
TEST POINT CONDITIONS FOR POWER AMP:
1.1Vpp 1kHz SINE WAVE INPUT INTO INSERT TIP, 4 OHM LOAD
C
D
TP11
E
+40V C26
47 35V
F
TP13
J5 Q5
TIP-142
R69 TP 10 11 12 13 14 15 AC .65Vpp 35Vpp 35Vpp 32Vpp 1.8Vpp RIPPLE 1.8Vpp RIPPLE DC .048V 1.4V -.67V .048V 34V -34V 2_PWRAMP Q14
2N5087 220 47
D23 +40V
1N914
TO SPEAKER J15
C51 R70
22K
R24 C40 +40V
1.5K 1/2W
R31
3.3K 1/2W
+40V R20
4.7
D5
MR-752 200V PIV
+ -
4W
1
1
TP10
Q20
2N5087
220 pF 100V
Q11
TIP-142
C22 R65 +40V
220 pF 100V 27K
S+ R37
D12
MR-752 200V PIV
C57
10 35V
4.7
S-
C35
220 pF 100V
D14
1N914
C21
1
R36
220
SWITCHING LOGIC A SOLO OVERDRIVE CLEAN -10V -10V 0V B +10V 0V +10V C 0V +10V 0V OR +10V R66 -40V
47
R13 R100
330 1.5K
C11
.001 100V
R39 Q9
2N5088 470
D13 R33
1N914 .47 5W
R23
.47 5W
R49
680
Q19
MJE-340
Q12 R62
10 1/2W
R40
330
MPS-A06
Q18
2N5087
R60
470
D21 R83
1N914 .47 5W
R85
.47 5W
C59
.047 100V
+16V +16V
C45
220
AP1
CW
R63
220 1/2W
D17
1N914
C39
1
R61
220
R101
100
500
R97 Q15
TIP-147 10 1/2W
R117
4.7K
4
D' B'
R32
3 2 1
4.7K
TP12
D'
REPLACE WITH R104 0.2 OHM, 5W ON 60W VERSIONS .1 ONLY 5W
2
R79
1K
-40V C43
220 pF 100V
TIP-147
2
-40V
J4
1K
Q10
S D G
Q23
E'
R108
A
-40V C78
S1
O C I
J112
+16V R86
2.2K
LINE
J25
JOW6 ICL1
3A
J23 J20
1
.1 100V
O
C79
.1 100V
C
I
ON 120W VERSIONS ONLY
TP14
R96
220 5W
T1
3
D19 -16V D18
GRN 1N914
J13 +16V +16V D7 R67
YEL
+40V
J19
2
4 CT 5
D35 J22
GBPC602
J24
C67
4700
C69
.1 100V
J21
1 2 3 4 5
R T C65
1
D27
1N914
D24
1N914
R50
2.2K
10K
NEUTRAL J29
OPT1 OPT2
D29 1N5353B 16V
100 35V
C14 +16V C28
.047 100V
C77 J27
.1 100V
C16
.047 100V
C44
.047 100V
C66 C70
4700 .1 100V
A R71
1M
R19
2.2K
J26 C41
.01 100V
C36 B' R110
3.3K .01
3
6 7 8 9 10 11
R55
33K
Q17
MPS-A55
C
FOR DSP VERSIONS SEE BOM
C76 J28
.1 100V
D28 1N5353B 16V
-16V
100 35V
C12
R95 -40V
220 5W
OPT3
R25 D22
10K
TP15
3
C75 -16V S+ S1
+16V R74
1N914
Q13
MPS-A13
C48
.1
R53
100K
O
C
I
S2
1.5K
R27 +16V
2.2K
R81
O C I
R54
1M
06a195-01/02 120 WATT/ 65 WATT 06a195-03/04 120 WATT/ 65 WATT WITH TUNER
470
Q22
MPS-A13
R15 B2
47K
D8 Q28
MPS-A13 RED
D25 1N746 3.3V
B C37
.01 100V
CAUTION: THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
+16V -16V R103
33K
CONNECT APPROPIATE XFMR LEAD TO J17 FOR 240V DESIRED LINE VOLTAGE. GRAY/WHT J17 230V
-16V
BROWN J23
2 1 0
REV
5-18-04 6/26/03 11/27/02 Date
ADDED TUNER CIRCUIT FOR DASH 03 AND 04 CHG'D C36 FROM .1 TO .O1 UF . CONTROL ISSUE
N01496 N01177
RLB REM
DESCRIPTION
Ecr(s)/Ecn(s)
Chgd By
Appvd by
Date
120V
R98
2.2K
BLK BLUE
J13
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC
R102
33K
Signatures:
J22 Drawn: Checked: Released:
Plot Date: Tue May 18, 2004
Date:
REM 8/30/02 First Used On:
4
NOTES: 1) CAUTION: SHOCK HAZARD!! THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE TOUCHING INTERNAL PARTS. 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE AND 10 MEGOHM DIGITAL VOLTMETER.
D36
1N914
C74
.047 100V
R105 E
1M
D37
1N914
C73
.01 100V
100V "PARK" THE THREE UNUSED LEADS ON ISOLATED TABS WHITE J26, J27, & J28. J19
4
Drawing Size:
Q27
MPS-A55
C
NONE 2
Drawing Title:
EXPORT WIRING
C D
Plot Time:
Drawing Type: Schematic Class Code: Sheet 2 of
PWA - DSP GUITAR AMP
Drawing Number:
Tolerance:
07S195-XX F
A
B
E