Tuner Section; Tuner Pcb - Samsung MM-77 Service Manual

7. Adjustment
Adjustments to this unit have already been made during production procedure.
Therefore, no adjustment is needed. If parts related to the adjustment are replaced, or readjustment
is required, proceed with adjustments in the order given below.
7-1. Tuner section
7-1-1. Measuring instruments required
(1) AM standard signal generator (S.S.G) : 400Hz, 30% MOD.
(2) FM standard signal generator : output impedance 75Q, or 3002 dummy 1KHz, 40KHz DEV.
(3) Oscilloscope
(4) VITVM
(5) AM Loop antenna
(6) Frequency Counter
(7) Dummy load(6Q)
(8) DC voltmeter
7-1-2. Importants
(1) Check the power source first.
(2) Check function and band switch.
(3) The equalizer, volume and balance control should be turned to the mid position.
7-1-3. Location of adjustment points (parts side)
TUNER PCB
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Q AM HS TRACKING AM-SEEK FM- SEP.
1L2 TLS
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FM: DET
TUNER PACK
MM-77
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