YORKVILLE Custom Valve YCV80, Service Manual

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Z437
TLO72 4N35
#8806
#8800
SEE LAYOUT DIAGRAM
#3796
#3850
Devices
PRODUCTION NOTES:
1. THERE IS A HEATSINK Z436 THAT IS ATTACHED
IN WIRING.
P
1
4
G2
8
5
NC
H H
3
K
6
G1
2
NC
7
G3
6L6GB
G O I
79XX
TO-220
E C B
MPSA56
TO-92
MPSA06
G S D
TO-220
IRF830
NO1
NC1
NO2
NC2
COM1 COM2
3700_DRW
"STYLE_P32"
I O G
78XX
TO-220
C E B
TO-92
BC550C
E B C
TO-126
MJE340
2G
2K
1 9
1K
1G
4
H
6
2
3
H
8
7
2P
5
HT
1P
12AX7A
"STYLE_P29"
13
12
11
10
9
DESCRIPTION OF CHANGE
5
4
3
2
1
# VER# DATE
MODEL(S):-
8
7
6
D
MAY/23/06
MAY/12/06 10.00
.
V
V
V
D
D
N
N
N
YCV80
7.00
.
8.10
.
JAN/04/2005
M602
SHORTS
NOV-01-2004 8.00
NOV 18 2002 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)
JAN-06-2005 . ADDED Z437 HEATSINK (GT)
APR-15-2005 . PC#6793, PC#6795: FIX BREAKAWAY AND RTE NEAR S5
MAY-17-2005 9.00
. . R94 #4849 -> #4796 180K, REPLACED LEAD_SIZE PARTS
GT:FORCE UPDATE PADS REQUIRED TRACE CHANGES
PC#7125:HG: RCA JACKS #3914 TO #6541
PC#7091:HG: #3522 SWITCH HOLES 0.031" TO 0.040"
5
2
#
6
3
4
1
DATE
MODEL(S):-
VER# DESCRIPTION OF CHANGE
D V N
D
D
V
V
N
N
M602 DRILL HISTORY
YCV80
APR-15-2005 V12 PC#6793, PC#6795: FIX BREAKAWAY AND RTE NEAR S5
PC#7091 #3522 SWITCH HOLES FROM 0.031" TO 0.040" V14 MAY/23/06
MAY/17/05 V13 SEE HISTORY TABLE FOR V9.00
4
1
6
5
3
#
2
MODEL(S):-
PC#
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
PENDING CHANGE
X
X
X
PC
PC
PC
PC
PC
PC
M602 PENDING CHANGES
YCV80
X
X
X
13
12
11
10
9
DESCRIPTION OF CHANGE
5
4
3
2
1
# VER# DATE
MODEL(S):-
8
7
6
2001 10 10 2.10
.
.
.
.
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
M602 PCB DATABASE HISTORY
2001 05 08
2001 06 05
1.00p0
1.00p1
. .
First Prototype
Remove cutouts for BE tube sockets, move ribbons cables
to line up, change shearing to routing
YCV80
2001 07 05 1.00p2 Moved Send and Return pots out 0.075"
. . Added Skrn outline to BE tube sockets
2001 08 13 1.00 Value changes to tweak sound
Add C166 10N across R122
.
2001 09 20
.
2.00
.
.
. .
Move C93 47P to be across R2
Add R160 10K from wiper to top of P13
Add R159 in series with Q20 output.
KNOB PART# FUNCTION REF
MODEL(S):-
{NEW}
YCV80
POTLIST
N
N
N
N
N
N
N
N
N
N
N
N
K
K
K P
P
P F
F
F R
R
R
BASS 4425 P2,P7
P12 EFF.RETURN 4497
P11 EFF.SEND 4497
P5 GAIN 4425
MID 4423 P3,P8
P10 PRESCENCE 4423
P13 REVERB 4423
P1,P6 TREBLE 4424
VOLUME 4425 P4,P9
8430
8430
8430
8430
8430
8430
N/A
N/A
8430
13
12
11
10
9
DESCRIPTION OF CHANGE
5
4
3
2
1
# VER# DATE
MODEL(S):-
8
7
6 JAN/17/02 3.00
YCV80
2.20
.
2.30
2001 10 17
.
NOV 30 2001
.
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
PC#6456 C16 1N TO 2N2, C11 220p TO
PC#6484 UPDATE SOLDERMASK FOR RCA JACKS AND TABS
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