19
19
18
18
17
17
16
16
15
15
14
14
13
13
12
12
11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
O
O
P
P
Q
Q
R
R
S
S
T
T
U
U
V
V
W
W
X
X
Y
Y
Product
Filename:
Date:
PCB#
of
Sheet
Rev:
2
1
10.00
M602
M602Q-10V00sch.SCH2002
YCV80
Tue Sep 05, 2006
Guitar Amp
Product
Filename:
Date:
PCB#
of
Sheet
Rev:
2
1
10.00
M602
M602Q-10V00sch.SCH2002
YCV80
Tue Sep 05, 2006
Guitar Amp
GND
+250V
GND
+15V
-15V
+250V
+15V
D16
4007
4007
D18
D15
4007
4007
D17
GND
GND
-15V
+15V
GND
-15V
+15V
R75
1/
4W 1M
.
R39
1/
4W 47R
.
R38
1/
4W 47R
.
R35
1/
4W 4K7
.
GND
GND
GND
1/
4W
10K
R160
.
GND
GND
-15V
GND
R48
1/
4W 10K
.
R36
1/
2W 2K
.
R69
1/
4W 220K
.
R85
1/
4W 27K
.
GND
NET00079
11
12
W25:K
NET00124
9
12
W25:I
NET00196
7
12
W25:G
-15V
5
12
W25:E
NET00089
3
12
W25:C
NET00060
LINE
+250V
3682
W11
GRN
FIL
+250V
+15V
HER508
D14
HER508
D13
GND
C65
250V
100N
GND
NET00066
NET00165
NET00095
GND
-15V
NET00147
+15V
GND
4007
D10
GND
4007
D8
+250VRAW
D7
1N5240BRL
10V0
0W5
GND
C40
100V
10N
GND
GND
-ABIAS
A1SENS
A1SENS
R43
1/4W
MINI
100K
C29
100V
220P
-BBIAS
-15V
GND
GND
B2SENS
B1SENS
C49
100V
470P
-15V
-15V
+15V
3682
W14
PLATE
BRN
+15V
GND
NET00125
NET00026
10
12
W25:J
12
12
W25:L
8
12
W25:H
NET00065
+15V
GND
4
12
W25:D
6
12
W25:F
1
12
W25:A
{Function}
2
12
W25:B
W41
#16
GRN
CHASSIS
CORD
DPST CE ONLY
S9
C81
275V
22N
W4
GND
#18
BL
K
W39
#16
GRN
GND
W40
#16
GRN
GND
3682
W22
WHT
LINE IN
R2
1/
4W 1M
.
R27
1/4W
.
220K
R3
1/
4W 1K54
.
C7
63V
1U
C21
250V
47N
+250V
3682
W10
FIL
GRN
1/
4W 220K
R22
.
R25
1/4W
MINI
100K
C3
100V
47N
1/
4W 2M2
R113
.
C2
100V
47N
R140
1/8W
FLMP
100R0
R141
1/8W
FLMP
100R0
2X_TRIODE_HCT
V2:B
R10
1/
4W 113K
.
2N
2
400V
C1
5
P4:A
4425
M
15A
500K
VOLUME
C9
100V
6N8
R13
1/4W
.
100K
C78
25V
470U
OUT
IN
U5
MC7915CT
6871
TO220
.
C76
25V
470U
OUT
IN
U4
6872
MC7815CT
TO220
.
PENTODE
V4:B
PENTODE
V5:B
1/
4W 62K
R152
.
R12
1/
4W 47K
.
R19
1/4W
.
470K
R20
1/4W
.
470K
-15V
R143
1/2W
.
18R
C79
100V
100N
PENTODE
V7:B
3682
W6
RED
HI.V
P7:A
4425
M
15A
500K
BASS
R16
1/4W
MINI
100K
R21
1/
4W 1M
.
R4
1/
4W 1K5
.
R142
1/2W
.
18R
D11
HER508
D12
HER508
GND
P9:A
4425
M
15A
500K
VOLUME
R26
1/
4W 470K
.
1/
4W 24K
R147
.
C85
400V
1N
R146
1/4W
MINI
100K
R15
1/4W
MINI
100K
GND
R138
1/
4W 36K
.
C62
450V
10U
R123
5.0W
390R
C70
450V
82U
2.
0W 220K
R157
10MM
-15V
TO92
BC550C
Q23
5101
R28
1/4W
.
27K
U9:B
TL072
U9:A
TL072
5
W30:E
9
4
W30:D
9
7
W30:G
9
6
W30:F
9
9
W30:I
9
8
W30:H
9
1
W30:A
9
.
R137
1/4W
MINI
2K2
C67
250V
220N
C68
250V
220N
R129
1/
4W 470R
.
63V
C90
150N
1/
4W 22K
R151
.
C89
100V
10N
R29
1/4W
.
47K
R116
1/4W
.
18K
R136
1/
4W 1M
.
1N5262B
D9
0W5
51V0
C64
450V
10U
1N5262B
51V0
D21
0W5
R159
1/8W
FLMP
220R0
4
6
5
6880
U6:B
4N35
R127
1/4W
.
2M2
R132
1/
8W 220R0
FLMP
Q22
5101
BC550C
TO92
2.
0W 2K2
R30
.
TO92
MPSA06
Q3
5103
R44
1/
4W 2K2
MINI
C27
400V
1N
R32
1/
4W 10K
.
R45
1/4W
.
1K
C41
100V
82N
R78
1/
4W 4K7
.
C39
100V
10N
R77
1/4W
.
10K
R76
1/
4W 1M
.
+15V
R135
1/
4W 1K
.
R33
1/4W
.
10K
R42
1/
4W 10K
.
4148
D19
R34
1/4W
.
10K
C26
100V
100N
LD4
GRN
CH2
C53
63V
330N
LD3
RED
OPERATE
R134
1/
2W 470R
.
GND
1/
4W 220R
R37
.
R40
1/
4W 100R
.
LD2
YEL
CH1
C44
63V
220N
R81
1/4W
.
47K
R80
1/4W
.
47K
B1SENS
R68
1/4W
.
820R
-ABIAS
-BBIAS
C51
63V
330N
R98
1/
4W 1K5
.
4148
D3
3436
S5:B
BOOST
3522
DOW
N
UP
S3:B
NET00125
Q13
5104
TO92
MPSA56
R60
1.0W
FLMP
220R
SCREEN
R62
1.
0W 10R
FLMP
R61
1.
0W 10R
FLMP
B1SENS
R101
1/4W
.
4K7
R119
1/4W
.
24K
U1:A
TL072
C30
63V
330N
+15V
C45
63V
220N
B2SENS
R67
1/4W
.
820R
GND
R64
1.
0W 10R
FLMP
R63
1.
0W 10R
FLMP
+15V
R102
1/4W
.
4K7
GND
P13:A
4423
M
15A
20K
REVERB
GND
GND
P11
4497
M
B LIN
10K
EFF.SEND
R59
1.0W
FLMP
220R
3682
W13
B+
RED
-15V
+15V
R117
1/4W
.
4K7
U7:A
TL072
1/
4W 100K
R155
MINI
R56
1/4W
.
10K
W33
#18
BLK
GND
W35
#18
BLK
GND
3682
W16
GRN
SPKR
W34
#18
YEL
SPKR
W36
#18
YEL
SPKR
R107
1/4W
.
10K
U3:A
TL072
C57
100V
220P
+15V
GND
1/
4W 47R
R111
.
R154
1/4W
.
220R
R153
1/4W
.
220R
GND
R96
1/
4W 100K
MINI
R92
1/4W
.
18K
R51
1/4W
.
1K
C36
100V
47N
R57
1/4W
.
10K
W32
#18
BLK
GND
S
R
T
J7
LINE_IN
-
-
-
1/
4W 4K7
R95
.
GND
GND
NAmer 3A
FUSE
F1
CE T2A
1/
4W 2M2
R114
.
C13
400V
1N
W3
GND
#18
BL
K
1/
4W 2K2
R5
MINI
63V
C19
330N
R1
1/4W
.
2K21
1/
4W 249K
R9
.
100V
C93
47P
W2
INPUT
#18
YEL
C14
400V
2N2
8
3
4
5
6
7
9
2
1
GRN
GRN
YEL
GRY
RED
GRY
RED
BLK
T1
BLK
1327(E)
R7
1/
4W 113K
.
3682
W8
YEL
C.T.
K2:A
K2:B
C1
400V
1N
C20
63V
470N
R6
1/
4W 1K5
.
C80
100V
100N
P8:A
4423
M
15A
20K
MID
3682
W5
RED
HI.V
P6:A
4424
M
1B
100K
TREBLE
R8
1/
4W 113K
.
100V
C83
6N8
1/
4W 100K
R41
MINI
1/
4W 4K7
R24
.
8
V+
4
V-
U9:C
51V
0
1N
5262B
D
24
0W5
C66
450V
10U
63V
C71
10U
3
W30:C
9
2
W30:B
9
R148
1/4W
.
8K2
R149
1/4W
.
15K
D6
1N5262B
0W5
51V0
1
2
6880
U6:A
4N35
K2:C
C25
50V
22U
1/
4W 10K
R156
.
B E
TO-92
C
BC550C
R99
1/
4W 33K
.
LD5
YEL
STANDBY
LD1
RED
BOOST
C B
TO-126
MJE340
E
GND
R70
1/
4W 220K
.
R65
1/4W
.
820R
R100
1/
4W 36K
.
S5:A
3436
CH-SELECT
3522
DOW
N
UP
S2:B
I G
TO-220
O
78XX
R79
1/
4W 39K
.
R84
1/
4W 27K
.
R53
1.0W
FLMP
220R
C55
250V
4N7
-15V
GND
GND
C59
16V
33U
R118
1/4W
.
10K
C56
400V
1N
R120
1/
4W 10K
.
C92
16V
33U
C38
100V
100N
R54
1.0W
FLMP
220R
C60
16V
33U
R110
1/4W
.
470R
8
V+
4
V-
U3:C
R90
1/4W
.
4K7
D4
4148
4148
D5
GND
R55
1/4W
.
10K
R106
1/4W
.
10K
R93
1/4W
.
12K
C58
100V
220P
R58
1/4W
.
10K
1/
4W 33R
R91
.
8
V+
4
V-
U7:C
S
R
T
J6
-
-
-
LINE_IN
W17
#18
YEL
SPKR
W18
#18
BLK
GND
6541
J10
REV RTN
P5:A
4425
M
15A
500K
GAIN
8
V+
4
V-
U1:C
11
W26:K
12
9
W26:I
12
7
W26:G
12
5
W26:E
12
3
W26:C
12
C82
250V
4N7
C22
250V
47N
C6
100V
470P
C11
50V
470P
SCREEN
A2SENS
A1SENS
GND
B2SENS
C46
100V
22N
R89
1/4W
.
24K
12
W26:L
12
10
W26:J
12
8
W26:H
12
3682
W9
GRY
LO.V
6
W26:F
12
4
W26:D
12
2
W26:B
12
1
W26:A
12
{Function}
3682
W7
GRY
LO.V
3682
W19
LINE
BLK
3682
W20
FROM SWCH
BLK
3682
W21
BLK
LINE
C16
400V
2N2
R23
1/4W
.
220K
C17
400V
1N
2X_TRIODE_HCT
V1:A
R11
1/
4W 47K
.
W38
#18
RED
To W37
R144
1/2W
.
18R
C74
25V
100U
C77
25V
470U
2X_TRIODE_HCT
.V2:C
C75
25V
470U
C73
25V
100U
2X_TRIODE_HCT
.
V3:C
C69
450V
82U
PENTODE
V6:B
C24
250V
4N7
C5
100V
47N
C18
100V
100N
R17
1/4W
.
1M
C12
250V
10N
R14
1/4W
MINI
100K
C23
100V
470P
1/
4W 100K
R133
MINI
C86
50V
330P
4148
D20
100V
C10
6N8
R126
1/4W
.
1M
R145
1/4W
MINI
100K
100V
C84
3N3
9
9
W29:I
8
9
W29:H
5
9
W29:E
4
9
W29:D
7
9
W29:G
6
9
W29:F
1
9
W29:A
R139
1/
4W 36K
.
C63
450V
10U
1N
5262B
0W5
51V
0
D2
2
1N
5262B
0W5
51V
0
D2
3
R124
1/4W
.
100K
R121
1/2W
.
8K2
R131
1/4W
.
1M
R130
1.0W
FLMP
0R47
C88
63V
150N
50V
C28
22U
R150
1/4W
.
27K
D2
4148
D1
4148
TO92
MPSA06
Q4
5103
K1:C
S6
:B
3522
C
ont
our
WHT
R115
1/4W
.
91K
TO92
MPSA56
Q14
5104
C43
400V
22N
R74
1/4W
.
470R
R73
1/4W
.
220K
C52
63V
330N
R103
1/4W
.
4K7
U8:B
TL072
C54
63V
100N
C61
16V
33U
R47
1/
4W 4K7
.
S3:A
3522
DOW
N
UP
BOOST
TO92
BC560C
Q15
5102
U1:B
TL072
R82
1/4W
.
47K
R83
1/4W
.
47K
W31
#18
YEL
SPKR
A2SENS
3682
W12
BLU
PLATE
R109
1/4W
.
10K
R105
1/4W
MINI
620R
R104
1/4W
MINI
620R
U8:A
TL072
8
V+
4
V-
U8:C
J8:A
3923
1/
4W 47R
R112
.
Q17
5104
TO92
MPSA56
Q18
5103
TO92
MPSA06
C50
100V
100N
R52
1/4W
.
10K
R97
1/4W
.
4K7
C35
100V
220P
R86
1/4W
.
47K
R88
1/4W
.
24K
C34
100V
220P
C33
16V
33U
R49
1/4W
MINI
620R
R50
1/4W
MINI
620R
8
V+
4
V-
U2:C
U2:A
TL072
C31
100V
220P
C32
100V
220P
{Value}
SCH_SPDT
S8
K1:A
P2:A
4425
M
15A
500K
BASS
P3:A
4423
M
15A
20K
MID
2X_TRIODE_HCT
V1:B
W1
INPUT
YEL
#18
2X_TRIODE_HCT
.V1:C
1/
4W 82K
R158
MINI
C4
100V
47N
R18
1/4W
MINI
100K
C8
50V
22U
BRIGHT
S1:B
3522
DOW
N
UP
S1:A
3522
DOW
N
UP
BRIGHT
S4
:B
3522
S
C
OOP
WHT
2X_TRIODE_HCT
V2:A
S6
:A
3522
C
ont
our
WHT
63V
C72
100U
P10:A
4423
M
15A
20K
MASTER VOLUME
6873
Q20
TO126
MJE340
Hi-Reg
3
9
W29:C
2
9
W29:B
W37
#18
RED
To W38
R128
1/4W
.
680K
D
S
G
Q19
6730
IRF830
TO220
HI.V REG
K1:B
R31
1/
4W 10K
.
TO92
MPSA06
Q5
5103
TO92
BC550C
Q7
5101
TO92
BC550C
Q6
5101
S4
:A
3522
S
C
OOP
WHT
"STYLE_P32"
"STYLE_P29"
C42
400V
22N
R71
1/
4W 100K
MINI
R72
1/
4W 82K
MINI
R66
1/4W
.
820R
C47
50V
22U
C48
50V
22U
2X_TRIODE_HCT
V3:A
2X_TRIODE_HCT
V3:B
V4:A
PENTODE
V6:A
PENTODE
STANDBY
S7:B
3522
DOW
N
UP
R46
1/
4W 4K7
.
TO92
BC560C
Q16
5102
S
T
R
J11
Gold
Gold
.
3522
DOW
N
UP
CH-SELECT
S2:A
B C
E
MPSA56
MPSA06
TO-92
D S
G
TO-220
IRF830
I
TO-220
O
G
79XX
1
2
3
5
4
BLU
BLK
GRN
BRN
T2
RED
1327M
3682
W15
BLK
SPKR
R108
1/4W
.
10K
U3:B
TL072
S
R
T
J5
HEADPHONES/LINE.OUT
-
-
-
C91
16V
33U
U7:B
TL072
U2:B
TL072
C37
25V
100U
S
R
T
J4
EFF.RETURN
-
-
-
6541
J9
RCA SNGL PCB MT HORZ K901
REV SND
P12
4497
M
B LIN
10K
EFF.RETURN
R87
1/4W
.
47K
3700_DRW
S
R
T
J2
Gold Gold
.
FT.SWITCH
P1:A
4424
M
1B
100K
TREBLE
S
R
T
J3
EFF.SEND
-
-
-
RING
J1
PENTODE
V5:A
PENTODE
V7:A
9
10
11
12
13
MODEL(S):-
DATE
VER# DESCRIPTION OF CHANGE
#
1
2
3
4
5
6
7
8
.
8.10
.
JAN-06-2005
JAN/04/2005
.
M602
.
.
D
D
D
APR-15-2005
MAY-17-2005
.
9.00
V
V
V
ADDED Z437 HEATSINK (GT)
PC#6793, PC#6795: FIX BREAKAWAY AND RTE NEAR S5
GT:FORCE UPDATE PADS REQUIRED TRACE CHANGES
R94 #4849 -> #4796 180K, REPLACED LEAD_SIZE PARTS
PC#7125:HG: RCA JACKS #3914 TO #6541
N
N
N
SHORTS
NOV 18 2002 7.00
8.00
NOV-01-2004
MOVE D11 D12 D13 D14 TO ELIMINATE
PC#6728:TUBE LABELS UPDATED TO V1 TO V7 (GT)
PC#6789 D11,D12,D13,D14 1N5408 TO HER508 (HG)
PC#7091:HG: #3522 SWITCH HOLES 0.031" TO 0.040"
10.00
.
MAY/12/06
MAY/23/06
YCV80Q
S7:A
3522
DOW
N
UP
STANDBY
KNOB
PART#
FUNCTION
REF
MODEL(S):-
{NEW}
N
N
N
N
N
N
N
N
N
N
N
N
K
K
K
4424
4425
4423
4425
4497
4497
4423
4423
4425
P
P
P
TREBLE
MID
GAIN
EFF.SEND
EFF.RETURN
PRESCENCE
REVERB
VOLUME
F
F
F
P1,P6
P2,P7
P3,P8
P5
P11
P12
P10
P13
P4,P9
R
R
R
BASS
8430
8430
8430
8430
N/A
N/A
8430
8430
8430
POTLIST
YCV80Q
9
10
11
12
13
MODEL(S):-
DATE
VER# DESCRIPTION OF CHANGE
#
1
2
3
4
5
6
7
8
Add R160 10K from wiper to top of P13
Add R159 in series with Q20 output.
pc#6544 D6 30V ->33V, C19 150N ->330N, C20 330N->470N,
C15 1N->470P, C17 470P->1N, R23,R23 470K->220K
C39, C40 100N->10N
.
.
2.10
.
.
.
.
.
Move C93 47P to be across R2
Add C166 10N across R122
Value changes to tweak sound
Added Skrn outline to BE tube sockets
to line up, change shearing to routing
Remove cutouts for BE tube sockets, move ribbons cables
.
2.00
1.00
.
1.00p2
.
1.00p1
1.00p0
2001 09 20
2001 08 13
.
2001 07 05
.
2001 06 05
First Prototype
2001 05 08
.
M602 PCB DATABASE HISTORY
.
2001 10 10
Moved Send and Return pots out 0.075"
YCV80Q
9
10
11
12
13
MODEL(S):-
DATE
VER# DESCRIPTION OF CHANGE
#
1
2
3
4
5
6
7
8
PC#6484 UPDATE SOLDERMASK FOR RCA JACKS AND TABS
C66 220N/250V TO 10u/450V
D25,D26 51V ZENER IN SERIES
PC#6475 REPLACE R125,R122,C87,Q21 WITH D6,D22,D23,D24
470P, R148 10K TO 8K2
3.00
2.30
.
2.20
JAN/17/02
NOV 30 2001
.
.
PC#6456 C16 1N TO 2N2, C11 220p TO
2001 10 17
FEB/26/02
4.00
PC#6512 D11,12,13,14 MR854 TO 1N5408
D
V
NEW PADS FOR TABS, RCA JACKS
Apr 10,2002
5.00
new pads and holes for 3921 jack
APR 29 02
.
C15 MOVED ADD JUMPER X64
JUN 26 2002
JUL 05 2002
SEP 03, 2002
5.10
6.00
6.10
PC#6541 R124 100K TO 47K
PC#6544 MOVE TRACES RE SLD BRDGING
PC#6563 R124 47K TO 100K D25 TO A JMP
YCV80Q
Summary of Contents for Custom Valve YCV80
Page 15: ......
