TEAC SR-L250IB Service Manual - Page 4

Adjustments And Checks - sr l250i

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SR-L250i 3 ADJUSTMENTS AND CHECKS 3-1 TUNER SECTION Use a screwdriver with a plastic or ceramic grip for all adjustment. 3-1-1 AM adjustment 1. Set the function switch to the TUNER position. 2. Set the BAND switch to the AM position. 3. Connect the test loop antenna across the output of the signal generator. 4. Connect the oscilloscope to the PHONES JACK terminal. 5. Connect the digital multimeter to R430/R453 on TUNER PCB. 6. Set the signal generator as listed in the alignment chart. 3-1-2 FM adjustment 1. Set the function switch to the TUNER position. 2. Set the BAND switch to the FM position. 3. Connect the signal generator output through a 75 ohm dummy antenna to "ANT" on MAIN PCB. 4. Connect the oscilloscope to the PHONES JACK terminal. 5. Connect the digital multimeter to R450/C404 on TUNER PCB. 6. Set the signal generator as listed in the alignment chart. 3-2 Adjustment Locations 

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SR-L250i
3
ADJUSTMENTS AND CHECKS
3-1 TUNER SECTION
Use a screwdriver with a plastic or ceramic grip for all adjustment.
3-1-1 AM adjustment
1. Set the function switch to the TUNER position.
2. Set the BAND switch to the AM position.
3. Connect the test loop antenna across the output of the signal generator.
4. Connect the oscilloscope to the PHONES JACK terminal.
5. Connect the digital multimeter to R430/R453 on TUNER PCB.
6. Set the signal generator as listed in the alignment chart.
3-1-2 FM adjustment
1. Set the function switch to the TUNER position.
2. Set the BAND switch to the FM position.
3. Connect the signal generator output through a 75 ohm dummy antenna to "ANT" on MAIN PCB.
4. Connect the oscilloscope to the PHONES JACK terminal.
5. Connect the digital multimeter to R450/C404 on TUNER PCB.
6. Set the signal generator as listed in the alignment chart.
3-2 Adjustment Locations