Arcam FMJ P7, Service Manual

Page: 14 / 40

ISSUE
DRAWING NO.
DRAWING TITLE
DATE
Filename:
ECO No. DESCRIPTION OF CHANGE
L924C2 1.1.sch
P7 Amplifier Module
Contact Engineer:
L924CT
7 Mar 2002
INITIALS
Printed:
2 3 Sheet of
Notes:
Contact Tel: (01223) 203200 Jonny Reckless
A & R Cambridge Ltd.
Pembroke Avenue
Cambridge CB5 9PB
Waterbeach
R223
1K0 SM
TR200
FMMT597 TR201
FMMT597
R214
47R SM R216
47R SM
TR205
FMMT497 TR207
FMMT497
R217
47R SM R218
47R SM
C212
470N PE
0V_SIG
INPUT
0V_HF
0V_HF
DZ200
15V 350MW SM
DZ201
15V 350MW SM
C201
100N SM
C200
100N SM
C202
100N SM
0V_SIG
0V_SIG
D205
1N4003F
D204
1N4003F
R228
22K SM
RV200
100R PSET
1
2
PL200
BIAS
R225
1K0 SM
R227
1K0 SM
Trim output stage Iq
D201
BAS16W SM
R211
27K SM
R213
27K SM
TR210
SAP15N
TR215
SAP15P
DZ202
4V7 350MW SM
DZ203
4V7 350MW SM
R231
4K7 SM
0V_SIG
TR204
FMMT497
TR203
FMMT597
+
C203
100U EL
+
C204
100U EL
R247
150R SM
R249
150R SM
R240
1M0 SM
R221
3K3 SM
R222
3K3 SM
C210
470P PPW
+
C215
10U EL
+ C213
100U EL 100V
+ C214
100U EL 100V
TR211
SAP15N
TR216
SAP15P
R250
150R SM
R248
150R SM
TR212
FMMT497
R257
1K SM
R255
6K8 SM
R241
1K CF 2W
R242
1K CF 2W
3
2
1
8
4
IC200A
TL072CD
5
6
7
IC200B
TL072CD
NFB
R229
22R MF
R230
22R MF
R212
27K SM
R210
27K SM
0V_HF
C217
47P/200V C218
47P/200V
C220
47P/200V
C221
47P/200V
C205
100P/250V
C207
100P/250V
C209
100N X7R 1812 500V
C208
100N X7R 1812 500V
D203
BAV99W
R219
220R MF
R220
220R MF
R232
560R MF
R234
680R MF
R233
560R MF
R235
680R MF
R236
R237
R238
R239
+
C216
10U EL
D200
BAS16W SM
D202
BAS16W SM
R224
1K0 SM
R226
1K0 SM
OUTPUT
+55V
-55V
+
C225
10U EL
EMITTER1
EMITTER2
BASE1
BASE2
R245
22R SM
R246
22R SM
R207
100R SM
R208
100R SM
TR208
FMMT497
TR213
FMMT597
0V_ZOB
R254
4R7 W2 CF
C223
47N PE
TR214
TR PNP 2SA1740
TR209
TR NPN 2SC4548
TR202
TR PNP 2SA1740
TR206
TR NPN 2SC4548
TP200
TP201
TP202
TP204
TP205
TP203
R236 THRU R239 NOT FITTED
02_E055 JR 4/3/2002 FIXED DC FAULT AT POWER ON SEQUENCE BY FEEDBACK 1.1
NF
NF
NF
NF
Input Filter
V to I converter
Integrating DC servo
PNP current mirror
NPN current mirror
Pre driver
Pre driver
Bootstrap
Output stage
Output stage
Pre driver bias
Measure Iq