Panasonic SA-AK870GCP Service Manual page 51

8.30.1. Assembly of Switch Regulator
Diode (D5702)
Step 1 : Apply grease to Heat Sink Unit B.
Step 2 : Fix 1 screw to attach the Switch Regulator Diode
(D5702) to the Heat Sink Unit B.
Special Note : Ensure the Switch Regulator Diode (D5702) is
tightly screwed to the Heat Sink Unit B.
Step 3 : Fix Heat Sink Unit B on SMPS P.C.B. in the direction
of arrows.
Special Note : Ensure the Heat Sink Unit Bis properly seated
on SMPS P.C.B..
Step 4 : Fix 1 screw to attach the Switch Regulator IC (IC5701)
to the Heat Sink Unit B.
Step 5 : Solder the pins of the Switch Regulator Diode (D5702)
on the reverse side of the SMPS P.C.B..
Step 6 : Solder the pins of the Heat Sink Unit B on the reverse
side of the SMPS P.C.B..
Caution : Before soldering, ensure all pins are properly seated
and no 'floating' of pins.
8.31. Replacement of Regulator
Diode (D5801)
• Follow the (Step 1) - (Step 6) of Item 8.3
• Follow the (Step 1) - (Step 11) of Item 8.4
• Follow the (Step 1) - (Step 6) of Item 8.21
• Follow the (Step 1) - (Step 4) of Item 8.28
Step 1 : Desolder pins of Regulator Diode (D5801) on reverse
side of SMPS P.C.B..
Step 2 : Remove 1 screw.
Step 3 : Remove Regulator Diode (D5801) from the Heat Sink
Unit C.
Caution : Avoid touching the Heat Sink Unit C during
replacement due to its hight temperature as it may lead to
injuries/shock.
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SA-AK870GCP