Panasonic RM-1100 - RM-1100 Alignment Procedures and Diagrams; FM RF and DC Balance Alignment Steps; FM Stereo and Azimuth Alignment Steps; Alignment Test Point Diagrams

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• FM RF ALIGNMENT
• FM STEREO ALIGNMENT
----_ ...... '-'-
nl
B;5
~
PILOT
76 kHz
VR2
eI
DC BALANCE
FM 2nd
IO.7MHz
---.
T3
o
Azimuth
Screw
o
Fig. 20
CJ
AM ANT
550kHz
L304
• ALIGNMENT POINT ·Please refer to Circ·uit Board for test points locaton.
FM SIGNAL GENERATOR FREQUENCY DC
BAND
DISPLAY VOLTMETER ADJUSTMENT REMARKS
.. _ CONNECTIONS
FREQUENCY SETTING
Disconnect No signal
87.5 MHz
V·.·(+)
L5
Adjust for
1.2±0.05 V
applied
V··(-)
(FMOSCCoil) readig on DC voltmeter.
FM
Disconnect
No signal
108 MHz
V ... (+) CT3 Adjust for 8±0.1 V
applied
V···(-)
(FM OSCTrimmer)
reading on DC voltmeter.
Repeat steps (1) and (2).
FM SIGNALGENERATOR FREQUENCY AC
BAND
DISPLAY
VOLTMETER
ADJUSTMENT REMARKS
CONNECTIONS FREQUENCY SETTING
Antenna socket
89 MHz
... (+)
L1 (FM ANT Coil) Adjustfor maximum
(FMRFDummy
(400 Hz 30%) 89 MHz
V .. (-)
L4 (FM ANT Coil) reading on AC voltmeter
Fig. 19)
FM
"
107 MHz
107 MHz
T .. (+)
CT1 (FMANT
"
Trimmer)
-
(400 Hz 30%)
v··(-)
CT2 (FM ANT
Timmer)
Repeat steps 4 and
5.
FM SIGNAL GENERATOR
FREQUENCY
DC
BAND DISPLAY VOLTMETER ADJUSTMENT REMARKS
CONNECTIONS FREQUENCY SETTING (center
"0")
Antenna scoket 89 MHz
V· .. ·(+)
T3
Adjust T3 for -0.05~0.05 V
FM (400Hz,
30%
89 MHz
V .. ··(-)
(FM 1FT) reading on DC voltmeter.
Mod. 60 dB)
.
Notes: 1. Stereo modulator ................ -Connect stereo modulatoroutput to EXT MODterminal of signal generator.
-Pilot signal modulation to "10%" .
2. FM signal generator
. . . . . . . . . . . . - Frequency approximately 100 MHz/Output level
to "60~ 70 dB", 1 ~3 mY.
-Modulation mode to
"FM".
CIRCUIT SIGNAL FREQUENCY
AC ADJUSTMENT REMARKS
GENRATOR
COUNTER VOLTMETER
High side thru.
PILOT 89 MHz 100 kO to test
--
VR2
Adjust for76.00
kHz±50 Hz readign on
(0% Mod. 80 dB)
point
V Negative I (Pilot)
frequency counter.
sidetoV
89 MHz
Make adjustment sothat when the antenna
SEPARATION
(400 Hz. 30% Mod.
f ..
LCh
(+)
VR1 input is sUbjected to L modUlation (or R
...Rch
(+)
80 dB)
... (-)
(Separation) modulation.) R channel output (or L
channel output) becomes minimum.
• AZIMUTH ALIGNMENT
TAPE
AC
AC
ADJUSTMENT
REMARKS
VOLTMETERG)
VOLTMETER@
Playback the azimuth tape.
Across headset
Across headset
V··Lch (+) Adjust forsame reading on AC
V ..
Rch
(+)
voltmeterCD and @.
v··(-)
(6) L-_---L _
• DC BALANCE NB ALIGNMENT
(2)
(1)
(3)
(5)
(4)
II1ARKS
.2±0.05V
Cvoltmeter
.8±0.1
v
DC voltmeter
II1ARKS
laximum
~r
"
JlARKS
laximum
~
rmaximum
mon
ope.
'ig. 16)
laximum
laximum
'ig. 17)
Fig. 21
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