Goldstar ffh-818a, ffh-717 Service Manual

ADJUSTMENTS

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.

IMPORTANT

1. Check Power-source voltage.

2. Set the function switch to band being aligned.

3. Turn volume control to minimum unless otherwise noted.

4. Connect low side of signal source and output indicator to chassis ground unless otherwise specified.

5. Keep the signal input as low as possible to avoid AGC and AC action.

TEST & ADJUSTMENT POINT

Figure 1. Main P.C. Board(FFH-717)

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VR201

(Adjustment Point)

L203

(Rec Bias)

L105

(LW/SW USABLE

SENSITIVITY)

L016

(DC VOLTAGE)

L017
(MW USABLE
SENSITIVITY)

TAPE DECK ADJUSTMENT

1. AZIMUTH ADJUSTMENT

Figure 3. Azimuth Adjustment Connection Diagram

CH1 CH2

Speaker Out

Playback Mode

Head

Test Tape
MTT-114

L ch

R ch

GND

Dual-trace
synchroscope

Electronic
Voltmeter

L out

R out

Unit

Figure 2. Main P.C. Board(FFH-818)

Deck Mode Test Tape Test Point Adjustment Adjust for

A Deck Playback MTT-114 Speaker Out

DECK Screw

Maximum

Azimuth Screw

B Deck Playback MTT-114 Speaker Out Azimuth Screw Maximum

VR201

(Adjustment Point)

L203
(Rec Bias)

L105

(LW/SW USABLE

SENSITIVITY)

L016

(DC VOLTAGE)

L017

(MW USABLE SENSITIVITY)

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