PT568 Service Manual
12
5.5 Exploded View
No. Name Part No. PCS
1 PT568 Front Casing 201-000568-R02C 1
2 PT568 Light Guide 201-000568-R09A 1
3 PT568 Logo 401-0201E1-R97B 1
4 PT568 PTT Cover 201-000568-R05C 1
5 PT568 PTT Key 202-000568-R02A 1
6 PT568 Speaker Cover 201-000568-R03B 1
7 PT568 Metal Speaker Net 203-000568-R09C 1
8 PT568 Battery Hook 2 203-000568-R05C 1
9 PT568 Battery Hook 1 203-000568-R04C 1
10 PT568 Spring Sheet 2 for Battery Latch 203-000568-R07A 1
11 PT568 Spring Sheet 1 for Battery Latch 203-000568-R06A 1
12 PT568 Battery Latch 201-000568-R14A 1
13 M2.0*4.0 Screws 301-20040G-R01B 11
14 PT568 Mainboard 602-005682-R01 1
15 PT568 Al Alloy Chassis 203-000568-R02B 1
16 M2.0*8.0 Screws 301-20080G-R02B 2
17 PT568 Earphone Jack Bracket 201-000568-R11A 1
18 PT568 Main Waterproof Loop 202-000568-R01A 1
19 PT568 Bracket Waterproof Washer 202-000568-R05A 1
20 PT568 Battery Connector 201-000568-R13A 1
21 M2.5*8.0 Screws 301-25080J-R01 2
22 PT568 Top Cover 201-000568-R04B 1
23 PT558 Antenna Connector 203-000558-R07B 1
24 M2.0*4.0 Screws 301-20040G-R01B 2
25 PT558 Nut for Antenna 203-000558-R14A 1
26 PT558 Nut for Knob 203-000558-R13A 2
27 PT568 Volume Knob 201-000568-R06A 1
28 PT568 Channel Selector Knob 201-000568-R07A 1
29 PT568 Top Waterproof Gasket 202-000568-R04A 1
30 PT568 Top Gasket 203-000568-R08A 1
31 PT558 MIC Seal 202-000558-R09 1
32 Speaker 121-100000-R20 1
33 PT568 Earphone Jack Cover 201-000568-R10B 1
34 PT558 Waterproof Net for Speaker 204-000558-R01 1
35 PT568 Waterproof Gasket for MIC Head 204-000568-R01A 2
36 PT568 Emergency Button 202-000568-R03A 1
Chapter 6 Adjustment
Before test/adjustment, make sure all equipment has been well
connected to the ground!
Before test/adjustment, make sure the antenna output terminal
has been correctly connected to corresponding equipment or load!
The transmitter output terminal must be terminated with an RF
power attenuator and connected to a standard signal generator
(SSG)/frequency counter/deviation meter/spectrum analyzer！
Make sure no transmission operation is being conducted while
measuring the receiver!
During the adjustment/test/maintenance, make sure reliable
anti-static measures are taken for human body and equipment.
6.1 Equipment and Software Required for Test and
Adjustment
Equipment and software listed in Table 6.1 are required for
test and adjustment of PT568.
Table 6.1 Equipment and Software Required for Test and
Adjustment
No. Item Specifications
1 Computer
P2 or above, IBM compatible PC,
WINDOWS 98/ME/2000/XP Operating
System
2 Programming software KSP568
3 Programming cable
4 Clone cable KCL01
5 DC regulated power supply
Output voltage: 7.5V
Output current: 5A
6 RF power meter
Measurement range: 0.5-10W
Frequency range: 100MHz-500MHz
Impedance: 50
SWR 1.2
7 Frequency counter
Frequency range: 0.1 - 600MHz
Frequency accuracy: better than ±1×10
-6
Sensitivity: better than 100mV
8 Deviation meter
Frequency range: DC - 600MHz
Measurement range: 0 - ±5kHz
9 DMM
Input impedance: above 10M/V DC,
capable of measuring voltage, current and
resistance.
10 Audio signal generator
Frequency range:2-3000Hz
Output level: 1-500mV
11 RF power attenuator
Attenuation: 40dB or 50dB
Supporting power : higher than 10W
12 Standard signal generator
Frequency range: 10MHz-1000MHz
Output level:
0.1uV-32mV (-127dBm~-17dBm)
13 Oscilloscope
Frequency range: DC~20MHz
Test range: 10mV-20V
14 Audio frequency voltmeter Test range: 10mV-10V
Recommendation: Item 6, 7, 8, 10, 11, and 12 listed in the
table can be replaced by HP8920 general test set.
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