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Pioneer XR-Q150 Service Manual page 35

Stereo cd deck receiver
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XR-Q150
6.
ADJUSTMENTS
6.1
TUNER SECTION
Wi FM Tuner Section
@ Set the mode selector to FM BAND.
@ Connect the wiring as shown in Fig. 1—1.
e@ For DD and DL types (AXQ1012)
FM SG (1kHz, +75kHz dev.)
'
Reception
Adi
Frequency
justment
Frequency
Level
Disol
Location
(MHz)
(dBrV)
splay
98
Non
80 or more
L6207
modulation
C6238 and GND) becomes at maximum
L6102
2
98MHz
T6101
level.
Stereo
Minimize the distortion with 1/8 rotation of
Distortion
ae
ae
98MHz
T6101
the core.
TUNED IND.
me
;
Adjust so that the indicator of TUNED IND.
Lighting Level | om | see 9§MHz' | VR6201. | rts to light up,
Notes:
:
© Before adjusting, make sure there is no gap between L6101 and L6102. If there is a gap between them, bring them into
contact with each other first, and then make adjustments.
@ Make indicator adjustments in order of AM — FM.
Adjust so that the DC voltage between
1C6201-Pin 4 and Pin 28 (or =: leads of
C6224 and C6261) becomes OV+50mV.
Adjustment
Adjust so that the DC voltage between the
1C6201-Pin 12 and GND (or '= leads of
Front End
Sensitivity
Adjustment
10 to 30
@ For MYIW/DI type (AXQ1014)
FM SG (1kHz, +75kHz dev.)) Reception
Frequency
Display
Adjustment
Location
Adjustment
Title
Specifications
Level
(dBrV)
Frequency
(MHz)
98
Non
80
modulation
Adjust so that the DC voltage between
1C6201-Pin 4 and Pin 28 (or =: leads of
C6224 and C6261) becomes
OV +50mV.
Center
After adjusting L6104 and L6105 so that the
DC voltage between JC6201-Pin 12 and GND
(or (+) leads of C6238 and GND) becomes at
maximum level, adjust T6101 and L6102.
Front End
Sensitivity
Adjustment
Stereo
TUNED IND.
.
4
Tightne Level
98
15(+2dB)
| 98MHz
VR6201
Notes:
@ Make indicator adjustments in order of AM — FM.
@ Adjustment sequence : L6104 + L6105 — L6102 — T6101
10 to 30
106MHz
Minimize the distortion with 1/8 rotation of
the core.
Adjust so that the indicator of TUNED IND.
starts to light up.
45

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