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Replacement Of Regulator Transistor (q8026); Disassembly Of Ac Inlet P.c.b - Panasonic SA-BT300PX Service Manual

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9.18. Replacement
Transistor (Q8026)
9.18.1. Disassembly of Regulator Transis-
tor (Q8026)
• Follow (Step 1) to (Step 3) of Item 9.3.
• Follow (Step 1) to (Step 3) of Item 9.13.
• Follow (Step 1) to (Step 7) of Item 9.15.
Step 1 Desolder pins of the Regulator Transistor (Q8026) on
the solder side of D-Amp P.C.B..
Step 2 Desolder pins of the heatsink extrusion.
Step 3 Remove the heatsink extrusion with the IC in the direc-
tion of arrow.
Step 4 Remove 1 screw from the Regulator Transistor
(Q8026).
Step 5 Remove the Regulator Transistor (Q8026) from the
heatsink extrusion.
of
Regulator
9.18.2. Assembly of Regulator Transistor
(Q8026)
Step 1 Install Regulator Transistor (Q8026) on to the heatsink
extrusion.
Step 2 Mount the heatsink extrusion with Q8026 on the D-Amp
P.C.B..
Caution: Ensure the (Q8026) is tightly screw to the heat-
sink extrusion.
Step 3 Solder pins of the (Q8026) on the solder side of D-Amp
P.C.B..
Step 4 Solder pins of the heatsink extrusion on the solder side
of D-Amp P.C.B..
Caution: Ensure pins of the (Q8026) are properly seated
and soldered on D-Amp P.C.B..

9.19. Disassembly of AC Inlet P.C.B.

• Follow (Step 1) to (Step 3) of Item 9.3.
• Follow (Step 1) to (Step 2) of Item 9.15.
53

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