PT4208 Service Manual
11
4.
The other slaves can be continuously cloned. Carry out
the operation in step 3.
Note:
The user can enable or disable the wired clone
function through PC programming software. Once the wired
clone function is disabled, the radio cannot enter the Wired
Clone Mode.
Chapter 5 Assembly and Disassembly for
Maintenance
The radio is a kind of sophisticated communication
equipment with precise structure and small size. You should
assemble and disassemble it carefully during the
maintenance. The instructions for the assembly and
disassembly are as follows.
5.1 Install/Remove the battery
1) Install the battery
Insert the two protrusions at the lower end of the battery
into the holes at the lower end of the shell of the radio.
Press down the upper part of the battery until the latch on
the radio completely bounces out and locked.
2) Remove the battery
Press the back of the battery slightly, and push the latch
upward. Then remove the battery from the radio.
Note:
* Never short the terminals of the battery.
* Do not throw the battery into fire.
* Do not remove the housing of the battery by yourself.
5.2 Install/Remove the belt clip
Slide the guide rails on the belt clip along the guide slots
on the rear of the battery with proper strength until the belt
clip is hooked. When removing the belt clip, lift the sheet
metal on the top of the belt clip with your finger nail or a
tool while pushing the belt clip upward.
5.3 Remove the front cabinet from the chassis
1) Pull out the knobs and screw off the antenna;
2) Remove the two nuts of the knobs and one nut of the
antenna with a special tool;
3) Screw off the screw on the earphone jack cover with a
cross screwdriver, and then remove the rubber cover;
4) Remove the two rubber plugs on the screws of the coping;
screw off the screws by a hexagonal screwdriver, and then
take off the coping;
5) Remove the two fixing screws at the lower part of the Al
chassis by a hexagonal screwdriver;
6) Insert a flat-blade screwdriver into the slot at the bottom
of the Al chassis, and prize up it. Then pull the Al chassis
backward to remove it from the front cabinet. Please be
careful not to break the cable of the speaker.
Refer to Figure 5.5.
Summary of Contents for PT4208
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Page 39: ...PT4208 Service Manual 38 Figure 7 PT4208 Main Board Top Layer Layout 420 470MHz ...
Page 40: ...PT4208 Service Manual 39 Figure 8 PT4208 Main Board Bottom Layer Layout 420 470MHz ...
Page 46: ...PT4208 Service Manual 45 Figure 14 PT4208 Main Board Top Layer Layout 136 174MHz ...
Page 47: ...PT4208 Service Manual 46 Figure 15 PT4208 Main Board Bottom Layer Layout 136 174MHz ...
Page 48: ...PT4208 Service Manual 47 Figure 16 KBC 70C Schematic Circuit Diagram ...
Page 49: ...PT4208 Service Manual 48 Figure 17 KBC 70C Top Layer Position Value Diagram ...
Page 50: ...PT4208 Service Manual 49 Figure 18 KBC 70C Top Layer Position Mark Diagram ...
Page 51: ...PT4208 Service Manual 50 Figure 19 KBC 70C Bottom Layer Position Value Diagram ...
Page 52: ...PT4208 Service Manual 51 Figure 20 KBC 70C Bottom Layer Position Mark Diagram ...
Page 53: ...PT4208 Service Manual 52 Figure 21 KBC 70C Layout ...