Onkyo TX-7430 - Adjustment Procedures; Amplifier Section; Idling Current Adjustment

ADJUSTMENT PROCEDURES
P reparation
• Standard knob position
•
Input
TAPE MONITOR SOURCE
FM mono : 1kHz, 75 kHz devi., 60d B/pV
VOLUME Maximum
FM stereo : 1kHz, L+R 67 .5kHz devi.: Pilot
signal 19kHz
BASS/TREBLE/BALANCE Center
7 .5kHz devi.
MODE STEREO
AM:
400Hz , 30% mod. ,
SPEAKER
'" , A
•
Output
SIMULATED STEREO ,
OFF
Connect the non-inductive type resistor o f 8 o hms to the
SELE CTIVE TON E CONTROL OFF
speake r terminal A o f J
en and right charmels unless o ther-
wise not ed .
Amplifier section
J . Idling current adjustment
C onnect the DC voltmet er to the terminals IID and V
CT on
the power amplifier pc board .
Adjust the
serni-fixed resistors R507 and R60 7 so that the
indic ation of voltrnet er is 7.5
± 1.5mV.
Notes: VOLUME Maximum , Open load ,
Adjust after switching on for 5 minutes.
J
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x
u
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°0 °
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u
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w >
x w >
.J 0 00 ~ 0 00
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P ower amplif ier pe board
_
o:
F 90 2 6
I H I
F 9 01 6
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