Table Of Contents; Crt Display Safety Precautions - Panasonic KX-G8300 Service Manual And Technical Manual

KX-G8300
When you refer to the serial number, write down all 11 digits. The serial number may be found on the label affixed to the
bottom of the unit.
TABLE OF CONTENTS
Features: 3 sickciacd eae th ee ede dos ees 2
CRT Display Safety Precautions ...............++.44- 2
Specifications < viv; sschos sauce awe eee pee ewes 3,4
Location of Controls .............. eee eee teens 5,6
Installation and Connection ...............00 eee 7~15
Operations ;.ci0ehire ueiva ta nes as dalecbies Gee EONS OG Saale 16
Important Notice ........... cece eee eee eee eee 16
Disassembly Instructions ...............-s0e0ee 17-21
Water Resistant Check Points ................+.- 22, 23
MaintenanC@> 20... cc,s:cve ee Loi cite grade dine eel Sies.s 24, 25
Wiring Connection Diagram.................. 26, 27, 31
Circuit Board ..... 0... cee ees 28, 32, 37~40
Schematic Diagram ..............2 02 008- 29, 30, 33~36
Circuit Operations ........ 2... cc eee ee eee eee 41-53
Adjustments ........ 0... cc cece ce eee ee eee ee 53-62
Troubleshooting Guide ........... 0... ee eee eee 63~72
Tools for Servicing ......... 0. cc cece ee ee eee eee 73
Service Extension cord connecting Method ............ 74
Cabinet and Electrical Parts Location ............. 75~78
How to Check the CRT Display for Servicing .......... 79
Accessories and Packing Materials ..............065 80
Replacement Parts List ........... 2.02. cee eee eee 81~88
FEATURES
7-inch daylight bright high resolution display
3kW power :
Easy view screen
High-speed LSI graphic controller
Screen (frame) memory
8-level target quantization
Compact radome antenna
Dual pulse rates and pulse lengths
Two EBLs (Electric Bearing Lines)
Two VRMs (Variable Range Markers)
Echo freeze with auto return
Inter-target distance measurement between two targets
Off-center (an additional half radius in any direction)
(exept 24NM Range mode)
Flexible guard zone with audible alarm
Multi-interval plotting to show the track of moving targets
on the display
On-screen alpha-numeric readouts for Range, Rings,
Distance, Plot, Interference Rejection, Expansion,
Freeze, EBL, and VRM
1.8 foot antenna
Loran interface (NMEA 0183 interface Format),
LAT/Long, Vessel Speed, Range/Bearing to waypoint.
Back Lighted Keypad
Target Expansion at Ranges greater than 3NM.
8 CRT Brilliance Levels
Power Saving Mode for reduction of battery Consumption
CRT DISPLAY SAFETY PRECAUTIONS
X-Radiation
Warning: The only potential source of X-Radiation is the picture tube. However when the high voltage circuitry is
operating properly there is no possibility of an X-Radiation problem. The basic precaution which must be
exercised is to keep the high voltage at the following factory recommended level.
Note: It is important to use an accurate periodically calibrated high voltage meter.
1. To measure the high voltage, connect a high voltage meter to the unit (© to CRT Ground Strap and @ to CRT
anode).
2. Turn Brightness control fully counterclockwise (minimum brightness).
3. Measure the high voltage. The high voltage meter (electrostatic type) reading should indicate 12.0 kV+
1.0 kV.
4. If the meter indication is out of tolerance, immediate service is required to prevent the possibility of premature
component failure.
5. To prevent X-Radiation possibility, it is essential to use the specified picture tube. Any attempt to substitute a tube of
a different manufacturer or color can result in a serious X-Radiation hazard and component failure.
A general class FCC licence is required to service this product. Please refer all service to qualified service facility.