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I will definitely be back for more information when I need it.
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The service manual when downloaded and printed out was clear and easy to read. I would have liked to have been able to enlarge some details, but this was not possible as the file permissions did not allow this. The service was very good. The time taken from placing my order to downloading the document was only a few minutes.
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The manual is useful for trouble shooting for an old instrument. It saved money,and let me enjoy DIY.
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Perfect source of information for replacing the HDD and performing general diagnostics.
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Perfect source of information for replacing the HDD and performing general diagnostics.
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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