Read Sony ZS-X1 Service Manual online
14
ZS-X1
AM (MW/LW) IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1
450 kHz
( ): Singapore, Korean, Australian models
AM VCO VOLTAGE ADJUSTMENT (US, CND, SP, KR, AUS)
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L4
530 (531) kHz
1.0
± 0.05 V
Confirmation
1,710 (1,611) kHz
5.3 (4.8)
± 0.7 V
( ): Singapore, Korean, Australian models
AM TRACKING ADJUSTMENT (US, CND)
Adjust for a maximum reading on level meter
L3
620 (621) kHz
CT3
1,400 (1,404) kHz
MW VCO VOLTAGE ADJUSTMENT (AEP, UK, IT, EE)
Frequency Display
Reading on Digital Voltmeter
531 kHz
0.9
± 0.4 V
1,611 kHz
5.2
± 0.5 V
MW TRACKING ADJUSTMENT (AEP, UK, IT, EE)
Adjust for a maximum reading on level meter
L3-1
621 kHz
CT3
1,404 kHz
LW VCO VOLTAGE ADJUSTMENT (AEP, UK, IT, EE)
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L4
153 kHz
0.6
± 0.2 V
Confirmation
279 kHz
5.0
± 0.1 V
LW TRACKING ADJUSTMENT (AEP, UK, IT, EE)
Adjust for a maximum reading on level meter
L3-2
162 kHz
CT5
261 kHz
FM IF ADJUSTMENT
Adjust for a minimum reading on level meter
T2
10.7 MHz
FM VCO VOLTAGE ADJUSTMENT
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L2
108 MHz
3.0
± 0.2 V
Confirmation
87.5 MHz
1.3
± 0.3 V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1
87.5 MHz
CT1
108 MHz
Adjustment and Connecting Location: TUNER board
(See page 15)
TUNER SECTION
0 dB=1
µ
V
[AM (MW/LW) ]
Setting:
Function: RADIO
Band: AM (US, CND, SP, KR, AUS)
Function: RADIO
Band: AM (US, CND, SP, KR, AUS)
MW or LW (AEP, UK, IT, EE)
[FM]
Setting:
Function: RADIO
Band: FM
Function: RADIO
Band: FM
• Repeat the procedures in each adjustment several times, and the
tracking adjustments should be finally done by the trimmer ca-
pacitors.
pacitors.
• Remove FM antenna in FM adjustment.
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level:
as low as possible
modulation by
400 Hz signal
Output level:
as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
+
–
–
level meter
set
3.2
Ω
AUDIO board
CN302 pin
CN302 pin
2
AUDIO board
CN302 pin
CN302 pin
1
FM RF signal
generator
75 kHz frequency
deviation by 1 kHz
signal
Output level:
as low as possible
deviation by 1 kHz
signal
Output level:
as low as possible
+
–
–
level meter
AUDIO board
CN302 pin
CN302 pin
2
AUDIO board
CN302 pin
CN302 pin
1
set
3.2
Ω
0.01
µ
F
TUNER board
TP (GND)
TP (GND)
TUNER board
TP (ANT)
TP (ANT)
digital voltmeter
TP (VT)
TP (GND)
100 k
Ω
TUNER board
SECTION 5
ELECTRICAL ADJUSTMENTS
PRECAUTION
1. Setting
MEGA BASS : OFF
Ver 1.1
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