ISSUE
DRAWING NO.
DRAWING TITLE
DATE
Filename:
ECO No.
DESCRIPTION OF CHANGE
L943C2_5.1.SCH
A80/P80 Power Supplies
Contact Engineer:
L943C2
9-Sep-2003
INITIALS
Printed:
2
8
Sheet
of
Notes:
Contact Tel:
(01223) 203 200
Mark Tweedale
A & R Cambridge Ltd.
Pembroke Avenue
Cambridge CB5 9PB
Waterbeach
23425
EARTH
MAINS WIRING AND AUXILIARY SUPPLY
0V(D)
+4.8V(D)
0V(D)
+4.8V(D)
ANALOGUE OP-AMP SUPPLIES
-15V(A)
+15V(A)
EMC Shield
SH200
1
L
N
E
SKT200
BULGIN
PX0580
C200
3N3
250V
CER
C201
3N3
250V
CER
C209
220N
275V
PP X2
LIVE
NEUTRAL
FHLDR200
20mm HLDR
FHLDR201
20mm HLDR
C203
3N3
250V
CER
C202
3N3
250V
CER
RLY200B
Takamisawa
F1CA005V
RLY200A
Takamisawa
F1CA005V
RLY200C
Takamisawa
F1CA005V
C204
470N
100V
MKS2
C210
100N
50V
0805
C211
100N
50V
0805
C215
1000UF
35V
YK
C216
1000UF
35V
YK
ADJ
REG202
LM337T
TO-220
ADJ
REG200
LM317T
TO-220
C217
100UF
25V
YK
C218
100UF
25V
YK
C224
1000UF
25V
YK
C221
100N
100V
MKS2
PWR_ON
0V(D)
+4.8V(D)
9VRMS
POWER AMP SUPPLIES
C205
470N
100V
MKS2
DBR201
GBU8D
+45V_R
-45V_R
-45V_L
+45V_L
-38V_VFD
VFD SUPPLY
0V_LS_L
0V_HF_L
TR200
BC849B
SOT-23
0V_LS_R
R215
2K2
0W125
0805
0V(D)
0V(SIG)
0V_HF_R
+5V(A)
DBR200
GBU8D
C206
470N
100V
MKS2
C219
100UF
25V
YK
+4.6V to +5.3V
ADJ
REG201
LM317T
TO-220
C225
1000UF
25V
YK
0V_LS_R
0V_HF_R
0V_HF_L
0V_LS_L
0V(SIG)
R217
680R
0W125
0805
0V_FB_L
0V_FB_R
0V_FB_L
0V_FB_R
Track by pre-out to pwr-in
0V(SIG)
SP202
0V(PSU)
D214
BAS16
SOT-323
D210
BAS16
SOT-323
D211
BAS16
SOT-323
D212
BAS16
SOT-323
D213
BAS16
SOT-323
D215
BAS16
SOT-323
C220
100UF
25V
YK
DZ200
BZX84C
5V6
SOT-23
C228
3,300UF
63V
USR
C229
3,300UF
63V
USR
C230
3,300UF
63V
USR
C231
3,300UF
63V
USR
FIL_1
FIL_2
ORANGE
1
BLUE
2
ORANGE
3
CON200
WAGO
256
R219
22R
0W125
0805
PCB Traces to route as shown here
1A
1
1B
2A
2
2B
115V
230V
SW200
18-000-0019
(NF ON P80)
R214
2K2
0W125
0805
R213
2K2
0W125
0805
R210
100R
0W125
0805
R209
100R
0W125
0805
R207
100R
0W125
0805
R208
100R
0W125
0805
BLUE
BLACK
ORANGE
GREEN
BLACK
GREY
BLUE
GREEN/YELLOW
Interwinding Screen
115V ac
115V ac
16Vac
16Vac
ORANGE
BLUE
ORANGE
WHITE
L916TX
(CHASSIS-MOUNTED)
3.2Vac
WHITE
WHITE
TR202
FMMT497
SOT-23
R216
2K2
0W125
0805
R206
10R
0W125
0805
C226
1000UF
10V
YK
ANNOTATION
R218
220R
0W25
MF
1
FIX200
Dia 3.2mm
DBR203
3BDF01M
HS200A
6043PB
23C/W
HS202A
6043PB
23C/W
HS201A
SW50-2
8.8C/W
ITEM203
1
Clip For SW Profile Heatsink
F006
D200
1N4003
DO-41
D203
1N4003
DO-41
D202
1N4003
DO-41
D201
1N4003
DO-41
C213
100N
50V
0805
C214
100N
50V
0805
(NF ON P80)
115V
115V
6
4
2
1
5
8
9V
9V
3
7
TX200
PCB Mount Frame
7A9301
0V(D)
SP200
SP201
R221
0R0
0W125 0805
R203
2R2
0W33
FU
FS200
T2.5A
S506
FS201
T2.5A
S506
FS202
T500mA
R452
BLUE
3
DK GREY
2
ORANGE
1
CON201
WAGO
256
GREEN
1
CON202
WAGO
256
GREY
4
DK GREY
3
LT GREY
2
BLUE
1
CON204
WAGO
256
GREY
2
GREY
1
CON205
WAGO
256
GREEN
1
CON203
WAGO
256
C212
22UF
63V
YK
0V(D)
R211
1K0
0W125
0805
C222
100N
50V
0805
0V(SIG_2)
SP203
0V(SIG_2)
For preamp bulk decoupling
P201
P200
P202
FS204
T2A
R452
FS203
T2A
R452
03_E116
TGP
R204, R205 CHANGED FROM 2R2 TO 0R
2.1
17 APR 03
R204
0R0
0W125
0805
R205
0R0
0W125
0805
03_E120
TGP
13 May 03
LEDs, BIAS & DOCUMENTATION CHANGE
3.0
03_E147
MJT
23 May 03
Removed double connection from R221 to star point. PCB change.
4.0
03_E230
MJT
04 Aug 03
None to this sheet. Display snapoff fixing holes reduced to 3.2mm
5.0
A80
C207
22UF
20V
OSCON
C208
22UF
20V
OSCON
03_E264
MJT
09 Sept 03
Remove EMC can from around IEC inlet.
5.1
This EMC can should now not appear
on any BoM as there is a safety
issue regarding the can shorting to a
live mains track on the top layer.
Consider removing the holes for the
can or perhaps move mains tracks
onto bottom layer for next PCB
revision.
NF
