ALIGNMENT AND PROCEDURES
This unit has been fully aligned at the factory before shipment and does not normally require further adjustment.
When necessary, however, the unit may be aligned as indicated below.
Do not adjust any circuit in this radiotelephone unless you understand the circuit operation and have
experience in adjusting the radiotelephone. Tampering with the radiotelephone may upset the alignment and
lower its performance.
The test equipment listed below are used for the test setup shown in Fig. 3.1.
This test setup used either partially or totally during the following adjustments.
Test Equipment
1) DC Power Supply (7.2V DC)
0 - 15V 3A max.
2) RF Power Meter
10 W 50 Ohm 100-200 MHz
3) RF Signal Generator
100-200 MHz, 50 ohm termination
4) FM Linear Detector (FMLD)
100-200 MHz
5)
Frequency
Counter
1-500
MHz
6)
Oscilloscope 20
MHz
7) Distortion Meter
8) Sinadder
9) Audio Oscillator
10) Toggle Switch (for use as PTT switch).
Fig. 3.1
RF POWER
METER
DC POWER
SUPPLY
AUDIO OSC
PTT
SWITCH
UNIT
UNDER TEST
OSCILLOSCOPE
SINADDER
FMLD
FREQ
COUNTER
DISTORT
METER
RF SG
SPEAKER
JACK
MIC
ANT
RX
TX
COUPLER
8
Summary of Contents for MR HH325VP
Page 10: ...Main PCB Bottom View Top View VR2 VC1 L22 L23 TP1 10 ...
Page 11: ...WIRING DIAGRAM CHARGER CHARGER 11 ...
Page 12: ...Main PCB Top View PRINTED CIRCUIT BOARD 12 ...
Page 13: ...Main PCB Bottom View PRINTED CIRCUIT BOARD 13 ...
Page 14: ...Charger PCB PRINTED CIRCUIT BOARD Bottom View LCD PCB Bottom View Top View Top View 14 ...
Page 16: ...MAIN UNIT EXPLODED VIEW MAIN UNIT EXPLODED VIEW 16 ...
Page 17: ...CHARGER UNIT EXPLODED VIEW 9 17 ...
Page 39: ...U7 M38C29FFAHP60K 39 ...
Page 40: ...U7 M38C29FFAHP60K 40 ...
Page 41: ...U8 XC6204B502MR 1 2 3 4 8 7 6 5 A0 A1 A2 GND VCC WP SCL SDA U AT C N 9 24 16 41 ...
Page 44: ...1 2 3 Emitter Base Collector KTC9014 2 1 3 2 772 SB P 1 2 3 Emitter Collector Base 44 ...