ISSUE
DRAWING NO.
DRAWING TITLE
DATE
Filename:
ECO No.
DESCRIPTION OF CHANGE
L924C1 1.1.sch
P7 Amplifier Module
Contact Engineer:
L924CT
7 Mar 2002
INITIALS
Printed:
1
3
Sheet
of
Notes:
Contact Tel:
(01223) 203200
Jonny Reckless
A & R Cambridge Ltd.
Pembroke Avenue
Cambridge CB5 9PB
Waterbeach
EMC
1
N
F
SK103
PHONO2G
C104
1N0 SM
0V_SIG
0V_LS
THERMPROT
VIPROT
DCPROT
RLY101A
RLY G2R-1E-24DC 16A SPDT
RLY101B
RLY G2R-1E-24DC 16A SPDT
+24V_DIG
MUTE
OUT RLY
1
2
3
4
5
6
7
8
9
10
SK104
10WAY-H-0.1-F
FAULT
D101
BAS16W SM
C103
100N SM
L101
2U2 AIR CORED
R103
2R2 MF
R104
100R SM
0V_DIG
+24V DIG
OUT RLY
INPUT
NFB
OUTPUT
EMITTER1
EMITTER2
BASE1
BASE2
L924C2
L924C2_1.1.sch
VIPROT
DC
EMITTER1
EMITTER2
OUTPUT
BASE1
BASE2
THERM
FAULT
L924C3
L924C3_1.1.sch
VIPROT
DCPROT
FAULT
SP101
STAR_8
0V_PSU
0V_LS
0V_ZOB
0V_SIG
0V_HF
THERMPROT
SK105
4MM 2W HOR
TP100
TP101
TP112
TP111
TP103
TP102
TP104
TP105
TP106
TP107
TP108
TP109
TP110
1
2
PL100
2WVERTJUMPER
NB: Nets +24V_DIG and 0V_DIG are isolated from amplifier circuit
Z100
L924PB
PCB
HEATSINK
INSULATOR
M3 TAPTITE
M3 TAPTITE
M3 TAPTITE
M3 TAPTITE
SUB PANEL
SCREW
SCREW
SCREW
SUB PANEL
SUB PANEL
SUB PANEL
Z102
E915HK
Z107
HB3B12A
Z108
HB3B12A
Z109
HB3B12A
Z110
HB3B12A
Z101
E107AY
Z103
HF4V09B
Z104
HF4V09B
Z105
HF4V09B
Z106
E950MC
02_E055
JR
4/3/2002
FIXED DC FAULT AT POWER ON SEQUENCE BY FEEDBACK
1.1
Electrical ground star point
Inputs
Amplifier circuit
Protection and supplies
To microprocessor PCB
NB: Feedback around relay not fitted
Microprocessor GND
Micropro24V
MUTE not used
Output relay control
Not used
Thermal protection
SOA protection
DC offset protection
Overall fault signal
NB: Signals THERMPROT, VIPROT,
DCPROT and FAULT are open
collector outputs, active low,
referenced to 0V_DIG with no pull up
resistors
Not used
TRANSISTOR
Summary of Contents for FMJ P7
Page 1: ...P7 FMJ P7 7 Channel Amplifier Service Manual ARCAM Issue 1 0...
Page 3: ...Technical Specifications Contents Technical specifications Rear panel silk screen...
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