TEAC SR-L250IB Service Manual - Page 6
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SR-L250i 3-2-2 FM TUNER ITEM SG SETTING Audio Modulation Frequency Output TUNER SETTING ADJUSTMENTS MEASURING POINTS. RESULT 1.VOLTAGE 2.ANT Coil 1KHz 22.5kHz 3.Adjustment 1KHz 22.5kHz 108MHz (EUR) Check TV3 CH (JP) 87.5MHz (EUR) Check 76 MHz (JP) 90.1MHz (CUR) 90.1MHz (EUR) 76dBuV Check 78 MHz (JP) 78 MHz (JP) 106.1MHz (CUR) 106.1MHz (EUR) 76dBuV Check 88 MHz (JP) 88 MHz (JP) VT 7+/-0.5V Maximun output level Maximun output level FM Signal generator 75 ohm FM SR-L 250i R450 C404 PHONES VT voltage 1K Ω Digital multimeter AC voltmeter 1K Ω
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6
SR-L250i
3-2-2 FM TUNER
ITEM
SG SETTING
TUNER
SETTING
ADJUSTMENTS
MEASURING
POINTS.
RESULT
Audio
Modulation
Frequency
Output
1.VOLTAGE
108MHz (EUR)
TV3 CH
(JP)
Check
VT 7+/-0.5V
87.5MHz (EUR)
76 MHz (JP)
Check
2.ANT Coil
1KHz
22.5kHz
90.1MHz (CUR)
78 MHz (JP)
76dBuV
90.1MHz (EUR)
78 MHz (JP)
Check
Maximun
output level
3.Adjustment 1KHz
22.5kHz
106.1MHz (CUR)
88 MHz (JP)
76dBuV
106.1MHz (EUR)
88 MHz (JP)
Check
Maximun
output level
Digital multimeter
75 ohm
FM Signal generator
AC voltmeter
FM
SR-L250i
PHONES
C404
R450
VT voltage
1K Ω
1K Ω