Arcam FMJ P7 Service Manual page 15

+55V
D308
22V 350MW SM
Instant SOA limiting
BASE1
D300
BAS16W SM
R340
10K SM
R338
TR309
EMITTER1
R302
FMMT497
330R SM
100R SM
+ C318
C305
100U EL
100N SM
R300 R335
100R SM 22R SM
DC offset detection
OUTPUT
R316
22K SM
R301 R336
100R SM 22R SM C320 C321
100U NP 100U NP
+ C319 C306
100N SM 0V_HF
100U EL
TR305
R311
FMMT597
R339
100R SM
EMITTER2
330R SM
R341
10K SM
D307
BAS16W SM
BASE2
Instant SOA limiting
D309
22V 350MW SM
-55V
IC300A
DC
OPTO-PC3Q66-QUAD-SM
0V_DIG
R320
22K SM
D303
BAS16W SM
TR310
FMMT497
TP300
R334
4K7 SM
TR302
FMMT597
0V_HF
R332 R333
22K SM 22K SM
TR312 TR313
FMMT497 FMMT497
R314 R315
100R SM 100R SM
IC300B
OPTO-PC3Q66-QUAD-SM
VIPROT
C300
100N SM
D301
R321
+ C301 15V 350MW SM
22K SM
0V_DIG
100U EL
R337
1K SM
TR311
R310
FMMT497
100R SM
Over temperature sensing
Power supplies
BR300
SK300 BRGBU8D
MOLEXPWR2WAY_R/A
1 3 2
AC from transformer ~ ~
TP304
2
TP305
BR301
SK301
BRGBU8D
MOLEXPWR2WAY_R/A
1 3 2
~ ~
AC from transformer
TP306
2
TP307
DRAWING TITLE
P7 Amplifier Module
Filename: L924C3 1.1.sch
Notes:
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB Contact Engineer: Jonny Reckless
IC300C
OPTO-PC3Q66-QUAD-SM
FAULT
TH300 IC300D
PTH 110DEG SM
THERM
R304
270R SM
OPTO-PC3Q66-QUAD-SM
R343 R303 0V_DIG
100K SM 22K SM
TR301
FMMT597
R342
120K SM
R305
10K SM
R307 TR300
39K SM FMMT497
R306
10K SM
0V_HF
+55V
TP302
+ C322
C AM 71V 10000U
0V_PSU
+ C323
C AM 71V 10000U
TP303
-55V
02_E055 JR 4/3/2002 FIXED DC FAULT AT POWER ON SEQUENCE BY FEEDBACK
ECO No. INITIALS DATE DESCRIPTION OF CHANGE
Contact Tel: (01223) 203200 Printed: 7 Mar 2002 Sheet 3 of 3 DRAWING NO.
1.1
ISSUE
L924CT