A Djustment - Pioneer VSX-D906S Service Manual

6. AD JUSTMENT
6.1 TUNER ADJUSTMENT
~ ADJUSTMENT OF FM TUNER SECTION
~ S et the FM/AM selector to FM B AN D.
~ Connect the wiring as shown in Fig. 6 — l .
Adjustment
Step No.
Title
Center
Adjustment
Front End
Sensitivity
adjustment
Stereo
Distonion
T U NED IN D .
Lighting Level
Notes:
~ Befo re adj usnng, make sure there is no gap between L6101 and L61 02 . lf there is a gap between them, bring them into contact with each other
ftrst, and then make adjustments.
~ Make indicator adj ustntents in order of AM ~ F M.
~ ADJUSTMENT OF AM TUNER SECTION
~ Set the FM/AM selector to AM BAN D.
~ Connect the wiring as shown in Rtg. 6 — l .
A d justm e n t
Step No.
Title
T UNED I ND .
Lighting Level
v/ t For the area using /OkHz step, frequencies should be 1000kHz
FM SG ( lkHz. e7SkHz dev.)
Reception
Frequency Frequency
Level
(M Hz) (dBlt V)
98
80 or more
Non
modulation
Low input
98
(0 to 30)
80
98
15 (~ &dB)
98
Reception
AM SG (400Hz, 30% Mod.)
Frequency
Level
Frequency
(kHz) (dB)tV/m)
999a ~ 47(e2dB) 999kHzv'
VSX-D906S, VSX-07TX, VSX-09TX
Ad)ustment
Location
Display
Adjust so that the DC voltage between IC620 1-Pin 4
L6207
and Pin 28 (or + l eads of C6224 and C6261) becomes
OVeSOmV.
Adjust so that the DC voltage between IC6201-Pin 12
L6102
98M Hz
and GND (or + leads of C6238 and GND) becomes at
T 6 10 1
maximum level .
T 6 10 1 Mini mize the distonion with I/8 rotation of the core.
98M Hz
Adj ust so that the indicator of TUNED IND. starts to
VR620 1
9 8M H z
light up.
Adjustment
Location
Display
Adjust so that the indicator of TUNED IND. starts to
VR6202
light up.
Specificatinns
Specifications