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M602 PCB DATABASE HISTORY
MODEL(S):-
YCV80
#
DATE
VER#
DESCRIPTION OF CHANGE
1
2001 05 08
1.00p0
First Prototype
2
2001 06 05
1.00p1
Remove cutouts for BE tube sockets, move ribbons cables
3
.
.
to line up, change shearing to routing
4
2001 07 05
1.00p2 Moved Send and Return pots out 0.075"
5
.
.
Added Skrn outline to BE tube sockets
6
2001 08 13
1.00
Value changes to tweak sound
7
2001 09 20
2.00
Add C166 10N across R122
8
.
.
Move C93 47P to be across R2
9
.
.
Add R160 10K from wiper to top of P13
10
.
.
Add R159 in series with Q20 output.
11
2001 10 10
2.10
pc#6544 D6 30V ->33V, C19 150N ->330N, C20 330N->470N,
12
.
.
C15 1N->470P, C17 470P->1N, R23,R23 470K->220K
13
.
.
C39, C40 100N->10N
.
MODEL(S):-
YCV80
#
DATE
VER#
DESCRIPTION OF CHANGE
1
2001 10 17
2.20
PC#6456 C16 1N TO 2N2, C11 220p TO
2
.
.
470P, R148 10K TO 8K2
3
NOV 30 2001
2.30
PC#6475 REPLACE R125,R122,C87,Q21 WITH D6,D22,D23,D24
4
D25,D26 51V ZENER IN SERIES
5
C66 220N/250V TO 10u/450V
6 JAN/17/02
3.00
PC#6484 UPDATE SOLDERMASK FOR RCA JACKS AND TABS
7
FEB/26/02
4.00
PC#6512 D11,12,13,14 MR854 TO 1N5408
8
D
V
NEW PADS FOR TABS, RCA JACKS
9
Apr 10,2002
5.00
new pads and holes for 3921 jack
10
APR 29 02
.
C15 MOVED ADD JUMPER X64
11
JUN 26 2002
5.10
PC#6541 R124 100K TO 47K
12
JUL 05 2002
6.00
PC#6544 MOVE TRACES RE SLD BRDGING
13
SEP 03, 2002
6.10
PC#6563 R124 47K TO 100K D25 TO A JMP
M602
MODEL(S):-
YCV80
#
DATE
VER#
DESCRIPTION OF CHANGE
1
NOV 18 2002
7.00
MOVE D11 D12 D13 D14 TO ELIMINATE
2
.
.
SHORTS
3
NOV-01-2004 8.00
PC#6728:TUBE LABELS UPDATED TO V1 TO V7 (GT)
4
JAN/04/2005
8.10
PC#6789 D11,D12,D13,D14 1N5408 TO HER508 (HG)
5
JAN-06-2005 .
ADDED Z437 HEATSINK (GT)
6
APR-15-2005 .
PC#6793, PC#6795: FIX BREAKAWAY AND RTE NEAR S5
7
MAY-17-2005 9.00
GT:FORCE UPDATE PADS REQUIRED TRACE CHANGES
8
.
.
R94 #4849 -> #4796 180K, REPLACED LEAD_SIZE PARTS
9
MAY/12/06
10.00
PC#7125:HG: RCA JACKS #3914 TO #6541
10
MAY/23/06
.
PC#7091:HG: #3522 SWITCH HOLES 0.031" TO 0.040"
11
D
V
N
12
D
V
N
13
D
V
N
SEE LAYOUT DIAGRAM
M602 DRILL HISTORY
MODEL(S):-
YCV80
#
DATE
VER# DESCRIPTION OF CHANGE
1
APR-15-2005 V12
PC#6793, PC#6795: FIX BREAKAWAY AND RTE NEAR S5
2
MAY/17/05
V13
SEE HISTORY TABLE FOR V9.00
3
MAY/23/06
V14
PC#7091 #3522 SWITCH HOLES FROM 0.031" TO 0.040"
4
D
V
N
5
D
V
N
6
D
V
N
M602 PENDING CHANGES
MODEL(S):-
YCV80
#
PC#
PENDING CHANGE
1
PC
X
2
PC
X
3
PC
X
4
PC
X
5
PC
X
6
PC
X
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
POTLIST
YCV80
MODEL(S):-
REF
FUNCTION
PART#
KNOB
{NEW}
P1,P6
TREBLE
4424
8430
N
P2,P7
BASS
4425
8430
N
P3,P8
MID
4423
8430
N
P5
GAIN
4425
8430
N
P11
EFF.SEND
4497
N/A
N
P12
EFF.RETURN
4497
N/A
N
P10
PRESCENCE
4423
8430
N
P13
REVERB
4423
8430
N
P4,P9
VOLUME
4425
8430
N
R
F
P
K
N
"STYLE_P32"
R
F
P
K
N
R
F
P
K
N
MPSA06
BC550C
MPSA56
TLO72
4N35
H
C
B
E
E
B
C
G2
G1
H
1P
5
4
5
4
6
TO-92
TO-92
2K
1G
P
NC
3
6
3
7
78XX
79XX
H
2
7
H
2G
2
8
1K
1
8
1
9
K
2P
HT
NC
G3
6L6GB
12AX7A
I
G
O
G
TO-220
TO-220
PRODUCTION NOTES:
1. THERE IS A HEATSINK Z436 THAT IS ATTACHED
IN WIRING.
Z437
"STYLE_P29"
IRF830
MJE340
E
C
B
G
D
S
TO-126
TO-220
COM1 COM2
NC1
NC2
NO1
NO2
I
O
3700_DRW
#8800
#3850
Devices
#3796
#8806
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