Tuner Adjustments; Measuring Instruments; Dummy Antenna; Test Point - Yamaha RX-V795a Service Manual

TUNER ADJUSTMENTS

Measuring Instruments

FM signal generator (FM SG)
Stereo signal generator (SSG)
AM signal generator (AM SG)
Distortion meter (DIST. M)
AC voltmeter (ACVM)
DC voltmeter (DCVM)
Oscilloscope
Low pass filter (YLF-15, fc=15kHz)
Oscillator

Test point

MONAURAL
DISTORTION ADJ.
(TE1 side)
DISCRIMINATOR
BALANCE ADJ.
(IC1 side)
SEPARATION
ADJ.
T1
PK2
T2
16
VR1
TP1
T3
TP2
VR2
T5
T4
CB4

Dummy antenna

FM dummy antenna
10Ω
E1
FM SG
(50Ω)
E2 (dB) = E1 (dB) -6 (dB)
FM dummy antenna
E1
FM SG
(75Ω)
E2 (dB) = E1 (dB)
AM dummy antenna
10KΩ
AM SG
(50Ω)
AM SENSITIVITY ADJ.
IFT
U,C,R models A,L,T,B,G models
SIGNAL METER
ADJ.
RX-V795a/RDS/HTR-5170
45Ω
E2
RECEIVER
(75Ω)
E2
RECEIVER
(75Ω)
AM ANT
GND
IFT
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