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MODEL:FR-X4A
ADJUSTMENTS(TUNER)
This set has been aligned at the factory and normally will not require further adjustment. As a result, it is not
recommended that any attempt is made to modificate any circuit. If any parts are replaced or if anyone tampers
with the adjustment, realignment may be necessary.
1. ADJUSTMENT & TEST POINT
(Tuner P.C. Board)
2. AM IF ADJUSTMENT(on P.C. Board)
AM Mode Condition Test Point Adjustment Adjust for
603kHz MOD. 30% Speaker L201 Maximum
3. FM 0 Volt Adjustment(on P.C. Board)
FM mode Contion Test Point Adjustment Adjust for
90MHz 60dB Between point L204 0 100mV
Terminal
R214
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Dual-trace
synchroscope
Electronic
Voltmeter
Speaker
Terminal
Head
Test Tape
MTT-114
L ch
R ch
L out
R out
Unit
CH1
GND
CH2
Playback Mode
Speaker
Terminal
Unit
Playback Mode
Frequency Counter
Head
Test Tape
MTT-111N
Record/Playback
head
GND
Speaker
Terminal
Unit
Playback Mode
Frequency Counter
Head
Test Tape
MTT-111N
Record/Playback
head
GND
MODEL:FJ-X4
ADJUSTMENTS
1. AZIMUTH ADJUSTMENT
Deck Mode Test Tape Test Point Adjustment Adjust for
Playback MTT-114 Head Screw R/L Maximum
Speaker
Terminal
(Azimuth Adjustment Connection Diagram)
2. MOTOR SPEED ADJUSTMENT
Deck Mode Test Tape Test Point Adjustment Adjust for
Playback MTT-114 3kHz 45Hz
Speaker
Terminal
(Motor Speed Adjustment Connection Diagram)
Top side of
mechanism
3. RECORD BIAS ADJUSTMENT
Deck Mode Test Tape Test Point Adjustment Adjust for
Rec MTT-5511 Erase Head Wire L381 80kHz 5kHz
(Record Bias Adjustment Connection Diagram)
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