Park Air Systems T6TR, Пользовательская документация

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T6TR VHF 50 W Transceiver Page 9 Maintenance
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Removing the Top Cover
Dangerous voltages are present within the transceiver. Care must be taken by personnel to
avoid accidental contact with exposed circuitry when the top cover is removed and power is
applied to the radio.
To remove the top cover, locate and unscrew the 18 countersunk screws securing the top cover to the
mainframe. Access can then be gained to the following modules:
‰
Processor module
‰
PSU Regulator module
‰
Power Supply (requires both top and bottom covers to be removed)
‰
Front Panel PCB assembly (requires both top and bottom covers to be removed).
Removing and Refitting the Processor Module
The Processor module is located as shown in Fig 8 . A module removal diagram is shown in Fig 9 .
WARNING Dangerous Voltages
Processor Module Compatibility
During 2005, Park Air introduced the Mark 1 processor module. The Mark 1 module provides a
supply voltage through the T1/E1 connector to supply an E1 Radio Interconnect (E1-RIC).
A Mark 0 module cannot replace a Mark 1 module when the radio connects to an E1-RIC.
The Mark number can be determined by reference to the serial number that is shown on the
module’s identification label.
Desc PROCESSOR
P/No 68-60000671/1
Type J/7
S/No 1L1234
PROCESSOR
68-6000067I/6
S/No
1234
Mark 1 Module Identification label Mark 0 Module Identification label
Note that the serial number (S/No) is a four-
digit number (in this example 1234)
preceeded by 1L. The 1 indicates a Mark 1
module and the L represents the year of
manufacture.
If in doubt, before changing the module contact customer services at Park Air.