Service manual
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Vertex Standard Manuals
Consumer electronics
VXA-150
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Table Of Contents
Introduction
Operating Manual Reprint
Controls & Connectors
Keypad
LCD Display
Field Programming Mode
Accessories & Options
Specifications
CE32 Programming Software Instructions
Exploded View & Miscellaneous Parts
Block Diagram
Circuit Description
Receive Signal Path
Squelch Control
Transmit Signal Path
Automatic Transmit Power Control
Transmit Inhibit
Spurious Suppression
PLL Frequency Synthesizer
Push-To-Talk Transmit Activation
Alignment
Required Test Equipment
Alignment Preparation & Precautions
Alignment Setup
PLL Reference Frequency
TX Power Adjustment
TX Modulation Adjustment
Alignment Point
Internal System Alignment Routine
Squelch Hysteresis Adjustment (HSSQ)
Squelch Threshold Adjustment (THSQ)
Squelch "Tight" Adjustment (TISQ)
Resetting the CPU
MAIN Unit
Circuit Diagram
Parts Layout (Side "A")
Parts Layout (Side "B")
Parts List
C1xxx
CD1xxx
CF1xxx
D1xxx
DS1xxx
MC1xxx
Q1xxx
R1xxx
TC1xxx
TH1xxx
VR1xxx
X1xxx
XF1xxx
VR Unit
Parts Layout
Circuit Diagram
Parts List
SW Unit
Circut Diagram
Parts Layout
Parts List
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E
C
0
3
6
N
9
0
0
Copyright
©
2001
VERTEX STANDARD CO., LTD.
All rights reserved.
No portion of this manual
may be reproduced
without the permission of
VERTEX STANDARD CO., LTD.
Printed in Japan
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