Pioneer RX-Z16 Instrukcja serwisowa - Strona 29
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RX-Z36.
RX-Z1G
4
4. ADJUSTMENTS
4.1
TUNER
BLOCK
Note:
;
4.1.1
FM Tuner Block
TUNER BLOCK
adjustment
of RX —Z36 and
RX —Z16 are
@ Set to the FM band.
ie Sas
@ Connect the tuner as shown in Fig. 4—1.
@ The adjustment locations and the TP terminals are in the
* 1 : Stereo modulation : Main lkHz
L+R +68.25kHz dev.
TUNER assembly.
Pilot 19kHz +6.75kHz dev.
FM SG (1kHz+75kHz dev.)
Frequency
(MHz)
Level (dBzV)
Adjustment of
F
Adjust to maximize the output voltage of
7
FM sensitivity
ve
ope
T201 | -Pp210 (Lch OUT) or TP212 (Rch OUT).
Confirmation of
2
87.5MHz VT
87.5MHz
—
Confirm that the foot of R203 is 3.5V +1.5V.
(tuning voltage)
Adjustment of
Adjust so that the potential difference between
T-METER
a8
Sst
eeMee
1202 | both side of R224 is OV +10mV.
R265 is either mounted or removed at
adjustment before shipment. Refer to the table
below and mount or remove R265 to align with
the point at which the TUNED IND. lights up.
Adjustment of the
See the table
TUNED IND.
pacthe vsht
R265
R265
Input level
activation level.
Reception
frequency
display
Adjustment
location
Step No.
Adjustment
Specifications
Confirm that the foot of R203 is 8.7V +}° V.
Adjust at L201 only if the voltage is 10V or
more.
ab (218
More than 25dByV (+ 15dB)
Adjustment of
:
Adjust so that the frequency of TP205 is 76kHz
Adjustment of
distortion
98 #1
If distortion of TP210 (Lch OUT) or TP212
(Steves)
98MHz
T202
(Rch OUT) exceeds 1.5%, then adjust it at T202
to be 1.5% or less.
FREQUENCY
COUNTER
DC
VOLTMETER
DISTORTION
METER
FM
ANTENNA
TERMINAL
SS
e a e
FM
SG
RX-Z36
(RX-Z16)
AC
VOLTMETER
Fig. 4—1
FM adjustment connection diagram
41