Fisher RS-913 - LW RF Frequency Cover Alignment (153 kHz); MW RF Tracking Alignment (603 kHz); MW RF Tracking Alignment (1404 kHz); LW RF Tracking Alignment (160 kHz)

Se ee ) 2. ee
AM TUNER ALIGNMENT (continued)
ee ee te at
0.8V ~ 1.0V.
Display
Set to 153kHz.
Note: Repeat the adjustments in Items 4 and 5. Then, confirm that each voltage becames 1.0V to 7.5V at receiving frequency
of 153kHz to 360kHz. (See Table 3) ,
6. MW RF Connect Standard Loop Set Preset Connect AC VTVM | Adjust MW ANT Coil (7101) for
TRACKING Antenna to output STATION button and Oscifloscope | maximum gain output.
ALIGNMENT terminal of AM RF Signal | to “1” position. to REC OUT.
(603kHz) Generator. Place Loop Set to 603kHz.
Antenna 60cm away from
Loop antenna (Unit).
Generator Setting to
603kHz or 1404kHz.
Modulate with 400Hz to “2” position.
7.
(1404kHz)}
(30 % modulation}. Set to 1404kHz.
Note: Repeat the adjustments in Items 6 and 7. Then, confirm there is no tracking error.
8. LW RF Connect AC VTVM | Adjust LW ANT Coil (T106) for
Change Preset Same as above.
Adjust MW ANT Trimmer (TC101)
STATION button
for maximum gain output.
Change generator Set Preset
TRACKING setting to 160kHz. STATION button and Oscilloscope | maximum gain output.
ALIGNMENT to “4" position. to REC OUT.
{160kHz) Set to 160kHz.
Change generator
setting to 350kHz.
Change Preset Same as above.
STATION button
to “5” position.
Note: Repeat the adjustments in Items 8 and 9. Then, confirm there is no tracking error.
10. AM AUTO Change generator
STOP setting to 999kHz and
SENSITIVITY output level to to “3” position.
ADJUSTMENT | 60dBypV/m. Set to 999kHz.
Use a screwdriver with plastic grip for ai! adjustments.
Adjust LW ANT Trimmer (TC102)
for maximum gain output.
Front Panel
TUNED Indicator
Display.
Set Preset
Adjust VR102 unti! the indicator
STATION button ne
partly tight up.
POWER AMPLIFIER ADJUSTMENT
BEFORE ADJUSTMENT
Unptug the AC power cord and set the front pane! controls as follows:
e Power Switch to OFF position.
@ Set the SPEAKERS Switch to the OFF position.
@ Turn the MASTER VOLUME Control to minimum.
@ Connect the AC power cord and Power Switch to the ON position.
IDLING CURRENT ADJUSTMENT
ies cae ale is very sensitive to changes in ambient temperature. Allow set to operate for 2 minutes before attempting this
alignment.
LEFT AMPLIFIER RIGHT AMPLIFIER
1, Connect the DC Voltmeter between Pins TP5 and TP6 on 1. Connect the DC Voltmeter between Pins TP7 and TP8 on
the Main P.C.Board. the Main P.C.Board.
2. Adjust the VR105 for an indication of 6MV +1MV on the 2. Adjust the VA104 for an indication of 6MV £1mV on the
DC Voltmeter.
DC Voltmeter.
P.C.BOARD PARTS LIST
ha
Part
No.
Description
Q’ty
Ahi
Part
No.
Description
ty
RF
MAIN
P.C.8.
ASSY
or
405
019
3804
TR
2SC536-G-NP
1
51
620
191
6089
RF
Main
P.C.B.
Assy
1
Q107
405
003
7702
TR
2SA1346
1
620 000
4152
FM
Frontend
4EU
AGC
4
Q108
405
019
2708
TR
2SC536-F-NP
1
of
405
019
3804
TR
2SC536-G-NP
1
co
Riis
Mace
:
ante)
or
405
019
3804
TR
2SC536-G-NP
1
Q111
405
027
8402
=TR
2SK583
1
620
017
0413
Retay
1
Q112
405 018
2708
TR
2SC536-F-NP
1
620
017
2738
Fuse
Clip
8
or
405
019
3804
TR
2SC536-G-NP
J
620
022
4901
Terminal
iP
1
Q113
405
0210808
TR
2SD1012-H
1
4110207700
SCR
S-TPG
BRZ
3X6
10
ai14
405
0210808
TR
2S01012-H
1
620
031
4763
Wire
Wrap
Terminal
8
Q115
405
0169007
TR
2SC3066-G
1
620
053
9244
Pilate
Heat
Sink
8
Q116
405
0169007
FR
2SC3066-G
1
620
1207064
Plate
Heat
Sink
2
Q117
405
002
9202
TR
2SA1209-T
1
CF101
620
014
6036
Ceramic
Filter
10.7MHz
4
or
405
002
9163
TA
2SA1209-S
1
CF102
620014
6036
Ceramic
Filter
10.7MHz
1
Q118
405
002
9202
TR
2SA1209-T
1
CF103
620014
5862
Ceramic
Filter
450KHz
1
or
405
0029103
TR
2SA1209-S
1
CF105
6200146319
Ceramic
OSC
CSB456F
11
1
Q119
405
016
4002»
=TR
28C2911-T
1
CN101
6200181686
Socket
Jumper
&P
1
or
405
016
3906
§=TR
2SC2911-S
1
CN102
6200175029
Socket
Jumper
9P
1
Q120
405
016
4002.
=
TR
2802911-T
1
CN103.
6200181709
Socket
Jumper
11P
1
or
405
016
3906
=
TR
2SC2911-S
1
CN104
620018
1693
Socket
Jumper
10P
q
Q121
405
019
2708
TR
2SC536-F-NP
1
CN105
620018
1686
Socket
Jumper
8P
1
or
405
019
3804
TR
2SC536-G-NP
1
CN106
6201895551
Socket
Jumper
7P
1
Q122
405
019
2708
TR
2SC536-F-NP
1
CN107
620
021
6555
Plug
4P
1
or
405
019
3804
TR
28C536-G-NP
1
CN108
620
021
6548
Pjug
2P
1
Q123
405
004
4502
TR
2SA608-F-NP
4
CX101
6200071338
Crystal
7.2MHz
1
or
405
004
5004
TA
2SA608-G-NP
1
or
620
007
1314
=Crystal
7.2MHz
1
Q124
405
004
4502
~=9TR
2SA608-F-NP
1
FU101
A
423
007
4404
FUSE
250V
T5A
1
of
405
004
5004.
TR
2SA608-G-NP
1
FU102
A
423
007
4404
FUSE
250V
TSA
1
Q125
405°017
2601
TR
2SC3117-S
1
FU103
A
4230050507
FUSE
250V
TIA
1
or
405
017
2502
TR
2SC3117-R
1
FU104
A
423
005
0507
FUSE
250V
T1A
1
Q126
405
017
2601
TR
28C3117-S
1
F101
620
0269353
FITZ
Antenna
Filter
1
or
405
017
2502
§=TR2SC3117-R
1
L101
620
027
1240
=
AF
Cail
1
Q127
405
003
1601
TR
2SA1249-S
1
L102
620
027
1240)
=—s
AF
Coil
1
or
405
003
1502
TR
2SA1249-R
1
RA101
6200045087
Resistor
3X10K
J
1
Q128
405
003
1601
TR
2SA1249-S
1
TC101
6200069724
Trimmer
Condenser
1
or
405
003
1502
TR
2SA1249-R
1
TC102
=
620
007
0614
—Ss
Trimmer
20PF
1
Q129
405
019
2708
TR
2SC536-F-NP
1
T1061
620
028
1348
3
38MW
Antenna
Coil
1
or
405
019
3804
TR
2SC536-G-NP
1
or
620
1859041
MW
Antenna
Coil
1
Q130
405 019
2708
TR
2SC536-F-NP
1
7102
620
188
9963.
FM
DET
Coil
1
or
405 019
3804
TR
2SC536-G-NP
1
or
620
190
3652
FM
DET
Coil
1
Q131
405
019
2708
TR
2SC536-F-NP
1
T103
620
188
9970
=
FM
DET
Coil
1
or
405
0193804
TR
2SC536-G-NP
1
or
620
190
3669
FM
DET
Coil
1
Q132
405
004
4502
=-
TR
2SA608-F-NP
1
T104
620
196
3676
OSC
Coil
MW
1
or
405
004
5004
TR
2SA608-G-NP
1
or
620
185
9058
OSC
Coil
MW
1
Q133
405 023
8208
TR
2SD438-D-MP
1
T105
620
027
7006
«=
IFT
AM
1
oF
405
023
8307.
TR
2SD438-E-MP
1
or
620
186
0528
«=
IFT
AM
1
or
405
023
8505
TR
2SD438-F-MP
1
T106
620
028
1362
LW
Antenna
Coil
1
Q134
405
007
4905
TR
2S6560-D-MP
1
™107
620
028
7821
OSC
Coil
LW
1
or
405
007
5100
TR
2S8560-E-MP
1
7108
620
026
4402
~=s
Anti
Birdie
Filter
1
or
405
007
5308
«#89TR
2SB560-F-MP
1
VR101
6200061353
Potentiometer
(B-100kQ)
1
Q135
405
022
5000
«TR
2SD1406-Y
1
or
620
006
1933
Potentiometer
(B-100kq)
1
Q136
405
019
2708
TR
2SC536-F-NP
1
VR1G2
6200061377
Potentiometer
(B-10kq)
1
or
405
019
3804
TR
2SC536-G-NP
1
or
620
006
1940
Potentiometer
(B-10kq)
1
Q137
405
019
2708
TR
2SC536-F-NP
1
VR103
6200061353
Potentiometer
(B-100k0)
1
or
405
019
3804
TR
2SC536-G-NP
1
or
620
006
1933.
Potentiometer
(B-100kqQ)
1
Q138
405
004
4502
TR
2SA608-F-NP
1
VR104
6200061315
Semi
Fixed
(B-1000)
1
or
405
0045004
TR
2SA608-G-NP
1
VR105
6200061315
Semi
Fixed
(B-1000)
1
Q701
405
0210501
TA
2SD1012-G
1
W102
620
189
5957
Wire
2
Parallel
1
Q702
405
019
2708
TR
2SC536-F-NP
1
W103
620
189
5964
Wire
2
Paraliel
1
or
405
019
3804
TR
2SC536-G-NP
1
W112
620
024
2608
Wire
4
Parallet
1
Q703
405
019
2708
TR
2SC536-F-NP
1
W113
620
024
2608
=Wire
4
Parallei
1
or
405
019
3804
TR
2SC536-G-NP
1
1G101
409
0739505
IC
LA1266
1
Q704
405
0210501
TR
2S01012-G
1
C102
409017
1008
iC
LA3401
1
Q705
405
0210501
TR
2SD1012-G
1
16103
409
0257306
IC
LM7000
1
Q706
405
019
2708
TR
2SC536-F-NP
1
10104
409
0185401
IC
LAG462S
1
or
405
019
3804
TR
2SC536-G-NP
1
16105
4090185104
IC
LA6458SS
1
Q707
405
003
7702.
=
TR
2SA1346
1
Q101
405
027
0604
TR
2SK246-Y
1
Q708
405
023
2008
|
48©69TR
280325-0
4
Q102
405
0201103
TR
2SC930-D-NP
1
or
405
023
2305
TR
2SD325-E
1
or
405
020
1905
TR
2SC930-E-NP
1
Q709
405
0210808
TR
2SD1012-H
1
Q103
405
019
2708
TR
2SC536-F-NP
1
Q710
405
027
8402
=
TR
2SK583
1
or
405
019
3804
TR
2SC536-G-NP
|
Q104
405
019
2708
=
TR
2SC536-F-NP
’
Ht
necessary,
replace
both
Diode
D101,
D102
(SVC321)
together
with
ps
405
019
3804
TR
2SC536-G-NP
A
new
ones
which
have
the
equivaient
characteristics
Q105
405
019
2708
TR
2SC536-F-NP
1
=
or
405
019
3864.
TR
2SC536-G-NP
1
;
Q106
405 019
2708
TR
2SC536-F-NP
1
D101
407 000
4708
VARACTOR
D!
SVC321C-2
1
-~7FJ-