Arcam SA30 Manuale di servizio - Pagina 2
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SPECIFICATIONS
ITEM
UNIT
Power
source
V
Total
harmonic
distortion
%
Signal-to-noise
Ratio
dB
Rated
output
V
Input
sensitivity
dB
NOTE:
Nominal specs represent the design specs, All units should be able to approximate
these some will exceed and some may drop slightly below these specs. Limit specs
represent the absolute worst condition these still might be considered acceptable; In
no case should a unit fail to meet limit specs.
TROUBLE SHOOTING
SYMPTOM
Unit does not operate
Output is too small
Ineffective volume control
NOMINAL
LIMIT
REMARK
117
107~127
1
<2
55
>50
11
>10
at 4
15.06
>14
at 8
22.25
>22
at 16
-20
-22~-18
AUX1
-55
-57~-53
MIC1
-55
-57~-53
MIC2
-55
-57~-53
PHONO
CAUSE AND REMEDY
h loose pl g for power line:
u
replug into socket.
h
fuse is burnt out:
replace it.
h output transformer open:
replace OT-30.
h
check Q9~Q14:
replace the defective components.
h defective driver unit:
replace driver it.
h output transformer open:
replace OT-30.
h
VR1. VR2. VR3 is out of oder
replace
VR1. VR2. VR3
ELECTRICAL PARTS LIST
Ref. No.
Description
Resistors
(All carbon film 1/4w
5%,unless noted otherwise)
R29
47Kohm
R28
47Kohm
R44
39Kohm
R27
33Kohm
R64
27Kohm
R68
270Kohm
R32
33Kohm
R54
27Kohm
R42
22Kohm
R22
18Kohm
R37
12Kohm
R31
12Kohm
R30
12Kohm
R36
10Kohm
R15
10Kohm
R11
10Kohm
R60
27Kohm
R1
1Kohm
R12
330ohm
R13
5.6Kohm
R14
5.6Kohm
R16
2.2Kohm
R17
2.2Kohm
R2
10Kohm
R20
270ohm
R21
680ohm
R25
5.6Kohm
R26
1Kohm
R33
15ohm
Mfr s Part No.
RFB347S
RFB347S
RFB339S
RFB333S
RFB327S
RFB427S
RFB333S
RFB327S
RFB322S
RFB318S
RFB312S
RFB312S
RFB312S
RFB310S
RFB310S
RFB310S
RFB327S
RFB210S
RFB133S
RFB256S
RFB256S
RFB222S
RFB222S
RFB310S
RFB127S
RFB168S
RFB256S
RFB210S
RFB015S