Goldstar fj-x4ax Service Manual adj

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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