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Good scan, very handy and it also includes the user manual. 122 pages in total.
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8. SERVICE PROCEDURE
MICRO-COMPUTER
To check the microcomputer firmware version, press 6.1 CH IN button and SLEEP button simultaneously while
2-2. AM(MW) Alignment Output of signal generator should not be greater than necessary to obtain an optimum output reading. Signal generator modulation ................................................................. 30% Signal frequency ................................................................................ 400Hz Modulation frequency ........................................... 603, 999, 1404kHz (/A/K/N) Modulation frequency ............................................ 600, 1000, 1400kHz (/U) Switch ........................................................... press the BAND Button to AM
power is on. The version number is shown on the main display of the unit. Ex. V 020716 01
TUNER 1. Requried Equipments
- AM Standard Signal Generator (AM SSG) - Oscilloscope - AC Voltmeter - FM Standard Signal Generator (FM SSG) - Stereo Modulator - Audio Generator - Distortion Meter - DC Voltmeter - Frequency Counter
Step 1
Subject Tunning voltage
Signal generator setting 522kHz (/A/K/N) 520kHz (/U) 603kHz (/A/K/N) 600kHz (/U)
Set frequency setting 522kHz (/A/K/N) 520kHz (/U) 603kHz (/A/K/N) 600kHz (/U) 603kHz (/A/K/N) 600kHz (/U) 999kHz (/A/K/N) 1000kHz (/U)
Equipment connection DC voltmeter
Adjustment point RF BLOCK OSC coil
Adjust for 522 kHz : 1.0 ~ 1.3V 1611 kHz : 7.0 ~ 8.5V
2
Note : Disconnect external FM antenna prior to alignment.
IF Tracking
AC voltmeter oscilloscope tape monitor L/R AC voltmeter oscilloscope tape monitor L/R AC voltmeter oscilloscope tape monitor L/R
IF BLOCK Coil KSNT-111I
Maximize audio output
2. Alignment
2-1. Alignment Test Points
3
RF Tracking
603kHz (/A/K/N) 600kHz (/U)
RF BLOCK ANT coil
Maximize audio output Repeat LOW, HIGH frequency
4
Seek level
999kHz (/A/K/N) 1000kHz (/U)
SVR 03
Tuned on point
2-3. LW Alignment (/A/N) Output of signal generator should not be greater than necessary to obtain an optimum output reading. Signal generator modulation ................................................................. 30% Signal frequency ................................................................................ 400Hz Modulation frequency ....................................................... 162, 207, 252kHz Switch ........................................................... press the BAND Button to LW
Step 1
Subject Tunning voltage
Signal generator setting 152kHz
Set frequency setting 152kHz
Equipment connection DC voltmeter
Adjustment point RF BLOCK OSC coil
Adjust for 522 kHz : 1.5 ~ 2.3V 1611 kHz : 6.0 ~ 7.5V
2
RF Tracking
162kHz
162kHz
AC voltmeter oscilloscope tape monitor L/R AC voltmeter oscilloscope tape monitor L/R
RF BLOCK ANT coil
Maximize audio output Repeat LOW, HIGH frequency
3
Seek level
207kHz
207kHz
Tuned on point
59
60
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