MLS MLSH041 Instrukcja Instalacji Strona 15
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ALIGNMENT AND TROUBLESHOOTING PROCEDURES
LBI-38438A 15
5.1.7 Audio Output Level Adjustment Procedure
STEP
METERING
POINT
TUNING
CONTROL
METER
READING PROCEDURE
1 J701-1 RV601 See
Procedure
Set the signal generator to the receiver
frequency with ±3 kHz deviation and 1 kHz
modulation. Set the RF signal level to 1000
microvolts. Move P551 from J551-1, 2 to J551-
2, 3 on the Transmitter/Receiver Board.
Connect RF signal generator to J1.
Terminate J701-1, 6 with a 4 ohm, 6-watt
resistor, connect the audio level meter and the
distortion analyzer input across the resistor. Set
the volume to the maximum point. Press DOWN
button two times. Adjust RV601 for 4-watt
output (4 Vrms, using the distortion analyzer as
Volt Meter).
Return P551 to J551-1, 2.
Control Logic Troubleshooting
- Maintenance Manual 1
- GENERAL INFORMATION 2
- TABLE OF CONTENTS 3
- 1 DESCRIPTION 4
- 2 INITIAL ADJUSTMENT 4
- 3 MAINTENANCE 5
- 3.2 PA TRANSISTOR REPLACEMENT 6
- MAINTENANCE 7
- 4 DISASSEMBLY PROCEDURE 8
- DISASSEMBLY PROCEDURES 9
- DISASSEMBLY PROCEDURE 10
- 5.1 SYNTHESIZER 11
- CMC-232A 29.7 - 42 MHz 12
- CMC-232B 42 – 50 MHz 12
- LBI-38438A 13 13
- 5.1.6 Audio Check 14
- Control Logic Troubleshooting 15
- 5.2 TRANSMITTER 16
- 5.2.3 Adjustment System 17
- 18 LBI-38438A 18
- LBI-38438A 19 19
- 5.3 RECEIVER 20
- 5.3.2 Alignment Procedure 21
- 5.3.5 Test Procedure 22
- LBI-38438A 23 23
- Receiver Troubleshooting 24
- LBI-38438A 25 25
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