12
XP-ZR810
[AM]
BAND: AM
Signal generator
[FM]
BAND : FM
Signal generator
• Connecting levelmeter
• Connecting digital voltmeter
TUNER SECTION
0 dB = 1
µ
V
AM FREQUENCY COVERAGE CHECK
Adjustment Part
Frequency Display Reading on Digital Voltmeter
Confirmation
531kHz
1.0
±
0.5V
(530kHz)
(1.0
±
0.5V)
Confirmation
1602kHz
6.8
±
0.5V
(1710kHz)
(7.6
±
0.5V)
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on levelmeter
L3
621kHz (620kHz)
CT3
1404kHz (1400kHz)
FM/TV (L) FREQUENCY COVERAGE CHECK
Adjustment Part
Frequency Display Reading on Digital Voltmeter
Confirmation
TV 2CH
0.7
±
0.4V
Confirmation
108MHz
8.7
±
0.5V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading levelmeter
L1
98.0MHz
US, Canadian models only
TV (H)/WB FREQUENCY COVERAGE CHECK
Adjustment Part
Frequency Display Reading on Digital Voltmeter
Confirmation
WB 1CH
3.3
±
0.5V
Confirmation
TV 13CH
7.8
±
0.5V
TV TRACKING ADJUSTMENT
Adjust for a maximum reading on levelmeter
L5
TV 10CH (197.75MHz)
Put the lead-wire
antenna close to
the set.
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
AM RF signal
generator
0.01
µ
F
FM RF signal
generator
FM IN
point
75kHz(100%) amplitude modulation
by 1kHz signal.
Output level: as low as possible
levelmeter
AP19 (TU-L) or
AP24 (TU-R)
100k
Ω
digital voltmeter
TP8 (VT)
•
Repeat the procedures in each adjustment several times for the
maximum level meter indication.
•
The AM tracking adjustments should be finally done by the
trimmer capacitors.
( ) : US, Canadian models
Adjustment location : MAIN board (see page 13)