10
3) Receiver Section
¨ ç
RF Signal Generator
¨ è
AF Level Meter
¨ é
Distortion Meter
¨ ê
DC Power Supply
¨ ë
Sinadder Meter
¨ ì
Oscilloscope
¨ í
16 Ohm 1w Dummy Load
3. ALIGNMENT PROCEDURE
1) PHASE LOOKED LOOP AND CPU SECTION
STEP SETTING
CONNECTION
ADJUST
ADJUST FOR
1
Frequency adjustment ;
Mode : Receive
Volume : Optional
Squelch : Optional
Frequency : 445.50MHz
Frequency counter
To output pin 4 of
Module 1
(Figure 1)
MODULE1 15.20MHz
¡ ¾
100Hz
2
CPU Voltage check ;
Mode : Receive
Volume : Optional
Squelch : Optional
Frequency : 445.50MHz
Connect DC Voltmeter.
to P40 of IC801
on CPU Board.
(Aligment Layout
CPU Section)
Indication on DC
Voltmeter must
be 3
¡ ¾
0.5V.
Summary of Contents for HTX-400
Page 9: ...8 BLOCK DIAGRAM...
Page 13: ...12 TEST EQUIPMENT SET UP FIGURE 1 FIGURE 2...
Page 14: ...13 FIGURE 3 FIGURE 4 45dBc...
Page 15: ...14 FIGURE 5 FIGURE 6...
Page 20: ...19 B IC805 FX465 C IC601 IC803 TK11230 D IC3 NJM 2073 FX465...
Page 21: ...20 E IC501 LV2105 F IC802 24LC16...
Page 22: ...21 G IC806 NJM2902V H IC401 TA31136FN...
Page 23: ...22 I IC804 XC6371 J IC807 NJM2904 K IC808 AS2810 ADJ GND VOUT VIN...
Page 30: ...29 WIRING DIAGRAM _ _ YELLOW GREEN BLACK RED MIC SPEAKER...
Page 32: ...31 EXPLODED VIEW OF UNIT...
Page 41: ...40 SCHEMATIC DIAGRAM...
Page 42: ...41...
