MEASUREMENTS AND ADJUSTMENTS

iU'IIiiiI.I·.l·~l'l'

• FM RF ALIGNMENT

• ALIGNMENT POINT

1.

Set power switch to ON.

4.

Set volume control to maximum.

2.

Mute switch to OFF.

5.

Set band switch to AM, FM.

3.

Intcom switch to HS.

6.

Set SENS switch to DX.

AM IF ALIGNMENT

 

 

SIGNAL GENERATOR or

FREQUENCY

INDICATOR

 

 

 

 

 

SWEEP GENERATOR

DISPLAY

(ELECTRONICS

ADJUSTMENT

 

REMARKS

BAND

 

 

I FREQUENCY

SETTING

VOLTMETER

 

 

 

 

 

CONNCTIONS

 

or SCOPE)

 

 

 

 

 

 

 

 

 

 

AM~IF ALIGNMENT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V .. ·.... (+)

 

450kHz

 

Point of non-

V···(+)

T302(AM 1st 1FT)

 

Adjust for maximum

AM

Earth ..... (-)

 

30% Mod.

 

interference. (onl

V ..(-)

T303(AM 2nd 1FT)

 

output.

 

 

 

 

at 400 Hz

 

about 600 kHz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AM RF ALIGNMENT

 

 

 

 

 

 

 

 

 

 

AM SIGNAL GENERATOR

 

FREQUENCY

DC

 

 

 

BAND

 

 

 

 

 

DISPLAY

VOLTMETER

ADJUSTMENT

 

REMARKS

 

 

CONNECTIONS

FREQUENCY

 

 

SETTING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Disconnect

No signal

 

 

520 kHz

V·..(+)

L303

 

Adjust for 1.2±0.05 V

 

 

 

 

applied

 

 

 

V·,·(-)

(AMOSCCoil)

 

readig on DC voltmeter

 

 

 

 

 

 

 

 

 

 

 

AM

Disconnect

No signal

 

 

1610kHz

V .. ·(+)

CT302

 

Adjust for 7.8±0.1 V

 

 

 

 

applied

 

 

 

V···(-)

(AM OSC Tr.immer)

 

reading on DC voltmeter

 

 

 

 

 

 

 

 

 

 

 

 

 

Repeat steps (1) and (2).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AM SIGNAL GENERATOR

 

FREQUENCY

AC

 

 

 

BAND

 

 

 

 

 

DISPLAY

VOLTMETER

ADJUSTMENT

REMARKS

 

 

CONNECTIONS

FREQUENCY

SETTING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connect to antenna

 

 

 

 

'V..(+)

L301 (AM ANT Coil)

Adjust for maximum

 

 

socket through AM

550 kHz

550kHz

v ..(-)

L304 (AM ANT Coil)

reading on

 

 

RF dummy antenna.

 

 

 

 

 

 

 

AC voltmeter

 

 

(Refer to Fig. 18)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FM SIGNAL GENERATOR

 

FREQUENCY

DC

 

 

 

 

 

 

 

 

BAND

 

 

 

 

 

DISPLAY

VOLTMETER

ADJUSTMENT

REMARKS

 

 

 

 

CONNECTIONS

 

FREQUENCY

 

SETTING

 

 

'.--

~.

,-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1 )

 

 

Disconnect

 

No signal

 

87.5 MHz

 

V ..(+)

L5

Adjust for 1.2±0.05 V

 

 

 

 

 

 

 

 

 

 

 

 

 

applied

 

 

 

V ..(-)

(FM OSC Coil)

readig on DC voltmeter.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(2)

FM

 

Disconnect

 

No signal

 

108 MHz

 

V ..(+)

CT3

Adjust for 8±0.1 V

 

 

 

 

 

 

applied

 

 

 

V ..·(-)

(FM OSC Trimmer)

reading on DC voltmeter.

 

(3)

 

 

Repeatsteps(1)

and (2).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FM SIGNAL GENERATOR

 

FREQUENCY

AC

 

 

 

 

 

 

 

 

BAND

 

 

 

 

 

DISPLAY

VOLTMETER

ADJUSTMENT

REMARKS

 

 

 

 

CONNECTIONS

 

FREQUENCY

 

SETTING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Antenna socket

 

89 MHz

 

 

 

'V..(+)

L1 (FM ANT Coil)

Adjust for maximum

 

(4)

 

 

(FMRFDummy

 

(400 Hz 30%)

 

89 MHz

L4 (FM ANT Coil)

reading on AC voltmeter

 

 

 

 

 

 

 

V ..(-)

 

 

 

 

Fig. 19)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(5)

FM

 

"

 

107 MHz

 

107 MHz

V .. (+)

cn (FMANT

"

 

 

 

 

 

 

 

 

Trimmer)

 

 

 

 

 

 

 

 

 

 

(400 Hz 30%)

 

'f. ••• ~ -

V ..(-)

CT2 (FM ANT

eI

 

 

 

 

 

 

 

 

 

 

 

Timmer)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(6)

 

 

Repeat steps 4 and 5.

 

 

 

 

 

 

 

 

 

 

 

 

' - '---

 

' - , -------

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• DC BALANCE NB ALIGNMENT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

(400 Hz, 30%

 

89 MHz

 

V··..(-)

(FM 1FT)

reading on DC voltmeter.

 

 

 

 

 

 

Mod,60dB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AM ANT

1500kHz

---- ,

cnol

-~......:::..~

 

 

 

 

 

 

 

 

 

CT301 (AM ANT

 

 

AM

"

 

 

1500kHz

1500kHz

; .. (+)

 

Trimmer)

 

 

 

 

 

 

 

 

... (-)

 

CT303 (AM ANT

"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Trimmer)

 

 

 

 

 

 

 

 

 

 

 

 

 

Repeat steps (4) and (5).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AM NB ALIGNMENT

 

 

 

 

 

 

 

 

 

 

AM SIGNAL GENERATOR

FREQUENCY

 

OSCILLO

 

 

 

 

BAND

 

 

 

 

DISPLAY

 

SCOPE

 

ADJUSTMENT

 

REMARKS

 

CONNECTIONS

 

 

FREQUENCY

SETTING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connect to antenna

 

550 kHz (400 Hz,

 

 

W.....(+)

 

 

 

Adjust for maximum

AM

socket through AM

 

0% Mod. 74 dB)

550kHz

 

V·..·(-)

 

T301 (AM NB)

 

wave from on

RF dummy antenna.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

oscilloscope.

 

(Refer to Fig. 18)

 

 

 

 

 

 

 

 

 

FM ALIGNMENT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SIGNAL GENERATOR or

FREQUENCY

 

INDICATOR

 

 

 

 

SWEEP GENERATOR

DISPLAY

 

(ELECTRONICS

ADJUSTMENT

REMARKS

BAND

 

 

 

 

SETTING

 

VOLTMETER

 

 

 

 

CONNCTIONS

 

FREQUENCY

 

 

or SCOPE)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FM-IF ALIGNMENT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

High side thru.

 

 

 

 

Connect vert.

 

 

 

 

0.0011JF to test

 

10.7MHz

Point of non-

 

amp. of scope to

 

Adjust for maximum

FM

point ~ Negative

 

SWP.

interference. (onl

 

testpointV

T1 (FM 1st 1FT)

amplitude.

 

side to test pointV.

 

 

about 90 MHz)

 

Negative side to

 

(Refer to Fig. 16)

 

 

 

 

 

 

testpointV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FM

"

 

 

"

"

"

 

T3 (FM 2nd 1FT)

Adjust for maximum

 

 

 

amplitude.

 

 

 

 

 

 

 

 

 

 

(Refer to Fig. 17)

• FM STEREO ALIGNMENT

Notes: 1. Stereo modulator

eConnect stereo modulator output to EXT MOD terminal of signal generator.

 

ePilot signal modulation to "10%".

2.FM signal generator ............ eFrequency approximately 100 MHz/Output level to "60-70 dB", 1-3 mV. eModulation mode to "FM".

CIRCUIT

SIGNAL

FREQUENCY

 

AC

 

ADJUSTMENT

REMARKS

 

GENRATOR

COUNTER

VOLTMETER

 

 

 

 

 

 

 

 

 

 

 

 

 

High side thru,

 

--

 

 

 

PILOT

89 MHz

100 kO to test

 

 

VR2

Adjust for 76.00 kHz±50 Hz readign on

 

(0% Mod, 80 dB)

pointV Negative

 

 

 

(Pilot)

frequency counter.

 

 

sidetoV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

89 MHz

 

 

i

LCh (+)

 

Make adjustment so that when the antenna

SEPARATION

(400 Hz, 30% Mod,

 

 

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 for same reading on AC

 

 

 

V ..Rch (+)

voltmeterG) and @.

 

 

 

v··(-)

 

FM OSC

I08MHz

~

FM OSC

87.5MHz

@]-

FM lsI

IO.7MHz

~

Vi

I

~

[l]

[[]

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Panasonic RM-1100 specifications CT2 FM ANT, CT301 AM ANT, CT303 AM ANT, Swp, Pilot, VR2, Separation, VR1

RM-1100 specifications

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