Thermal Dynamics Pak Master 75XL Plus, Руководство по обслуживанию

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Manual 0-2747 5-9 REPLACEMENT PROCEDURES
D. Main Transformer Assembly Replacement
1. Remove the Left Side Panel per Section 5.04-B.
2. Remove the Right Side Panel per Section 5.04-C.
3. Remove the following terminal connections from
the two FET/Heatsink Assemblies noting the loca-
tion of each wire:
C o n n e c t io n D e s crip t io n
E 1 4 M A I N X F M R P R I
E 1 5 X F M R P R I
E 1 6 M A I N X F M R S E C
E 1 9 X F M R S E C
4. Remove the four screws which hold the mounting
plate to the bottom chassis.
5. Carefully remove the mounting plate with the Main
Transformer Assembly from the unit.
6. Install the replacement Main Transformer Assem-
bly by reversing the above procedure (see Note).
NOTE
The four screws securing the mounting plate to the
chassis should have a maximum of 2 to 5 threads
protruding through the left side of the chassis.
E. Output Inductor Assembly Replacement
1. Remove the Left Side Panel per Section 5.04-B.
2. Remove the Right Side Panel per Section 5.04-C.
3. Disconnect the lead wire on terminal E7 of the Pilot
Output PC Board.
4. Disconnect the lead wire on terminal E17 of the top
FET/Heatsink Assembly.
5. Remove the four mounting screws securing the Out-
put Inductor Assembly to the chassis.
6. Remove the Output Inductor Assembly from the
unit.
7. Install the replacement Output Inductor Assembly
by reversing the above procedure (see NOTE).
NOTE
The four screws securing the mounting plate to the
chassis should have a maximum of 2 to 5 threads
protruding through the left side of the chassis.
F. Auxiliary Transformer Assembly
Replacement
1. Remove the Left Side Panel per Section 5.04-B.
2. Remove the Right Side Panel per Section 5.04-C.
3. Disconnect the white wire single pin connector
coming from the Auxiliary Transformer Assembly.
4. Unplug J1 from the Logic/Gate PC Board and slide
through plastic bushing in chassis.
5. Unplug the voltage selector (blue wire) located on
left side of center chassis.
6. Remove connectors J19 (black wire), J20 (orange
wire), and J21 (brown wire) from the center chassis
using a socket removal tool.
7. Remove the four mounting screws securing the Aux-
iliary Transformer Assembly to the chassis.
8. Remove the Auxiliary Transformer Assembly from
the unit.
9. Install the replacement Auxiliary Transformer As-
sembly by reversing the above procedure noting
the following:
• Brown wire to 460V selector connector (J21) on
center chassis.
• Orange wire to 380V selector connector (J20) on
the voltage selection panel.
• Black wire to 220V selector connector (J19) on
the voltage selection panel.
View of Voltage Selector Connectors
from the Left Side of
Center Chassis
460V
(brown wire)
220V
(black wire)
380-415V
(orange wire)
A-02561