YORKVILLE Traynor Custom Valve 20, Service Manual

Page: 9 / 10

2.
1.
TL072C
HOLE
RIBBON CABLE
LEAD/PIN REFERENCE
LEAD BENT AND TRIMMED
LEADS FOR W25 RIBBON CABLE MUST BE BENT AWAY
FROM PCB HOLE AND TRIMMED
SEE LAYOUT DIAGRAM
PRODUCTION NOTES
MOUNTING DETAILS FOR Q11, U3 AND U4
#8837
#3850
#8800
Z437
#3796
Devices
C2
NC
C1
NO
3696_DRW
G S D
TO-220
IRF830
E C B
TO-92
MPSA06
MPSA56
C E B
TO-92
BC550C
G1
G3
K
1 9
NC
P
4
H
6
EL84
2
3
H
8
7
NC
5
G2
NC
"STYLE_P32"
NO1
NC1
NO2
NC2
COM1 COM2
3700_DRW
2G
2K
1 9
1K
1G
4
H
6
2
3
H
8
7
2P
5
HT
1P
12AX7A
11
8
5
2
12
9
6
13
10
7
3
4
1
D
D
D
V
V
V
N
N
N
D
D
D
D
D
D
D
V
V
V
V
V
V
V
N
N
N
N
N
N
N
12-OCT-2005 6.00 AH, PC#6937, CHANGE TUBE SOCKET DRILLING
23-MAY-2006 7.00 PC#7125:GT:#3914 RCA JACK ->#6541, PC#7091: ENLARGE
. . HOLES FOR #3522 DPDT SWITCH, UPDATED RELAYS
KNOB PART# FUNCTION REF
MODEL(S):-
{NEW}
YCV20
M647 POT LIST
MAR 2003
" "
" "
" "
" "
" "
" "
" "
N
N
N
N #8430
#8430
#8430
#8430
#8430
#8430
#8430
#8430
K
K
K
K #4424
#4425
#4423
#4425
#4425
#4425
#4425
#4424
P
P
P
P TREBLE
BASS
MID
GAIN 2 (CLN)
GAIN 1 (OD DRV)
VOL 2 (CLN)
VOL (OD)
REVERB
F
F
F
F P1
P2
P3
P4
P5
P6
P7
P8
R
R
R
R
4
1
6
5
3
#
2
MODEL(S):-
PC#
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
PENDING CHANGE
X
X
X
X
X
X
PC
PC
PC
PC
PC
PC
M647 PENDING CHANGES
YCV20
5
2
#
6
3
4
1
DATE
MODEL(S):-
VER# DESCRIPTION OF CHANGE
D
D
V
V
N
N
D
D
D
V
V
V
N
N
N
M647 DRILL HISTORY
YCV20
V07 PC#7125 AND #7091, SEE HISTORY TABLE MAY-23-2006
11
8
5
2
12
9
6
13
10
7
3
4
1
D
D
D
D
V
V
V
V
N
N
N
N
D
D
D
D
D
D
D
D
D
V
V
V
V
V
V
V
V
V
N
N
N
N
N
N
N
N
N
13
12
11
10
9
DESCRIPTION OF CHANGE
5
4
3
2
1
# VER# DATE
MODEL(S):-
8
7
6
May, 12, 2003
. .
4.00
V3.00 Apr 07, 2003 PC#6597 R31 2k2 1/2W to 1K 1W. Add C64,C65,R95,R96,
D2
Fix shorts in Ver 3.00
FEB, 2003
19 Feb, 2003
V1.00
V1.03
FIRST PRODUCTION
Force updated r70,r72 to fix hole size.
YCV20
M647
21 Feb, 2003 V2.00 Fixed hole size on tube socket - added clinch hole
Updated targets . .
16-DEC-2003 5.00 Added headphones, DI out, ext. spkr jack and spkr defeat
16-DEC-2003 Connected jacks -ve to speaker -ve, reduced headphone gain
5-JAN-2004 Shifted footswitch jack by 200mil
5.00
5.00
06-OCT-2004 5.10 PC#6716 CHANGE R66&R63 TO 220K (4841), R58 TO 4R7
(4866), R54&R53 TO 4K7 (4827), C35 TO 150N (5229), R88
TO 100K (4838) [GT]
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