Panasonic SA-AK870GCP Service Manual page 47

8.26.1. Assembly of Voltage Regulator IC
(IC2761)
Step 1 : Apply grease to heat sink.
Step 2 : Mount the Voltage Regulator IC (IC2761) onto the
Main P.C.B..
Caution : Ensure all pins are seated properly.
Step 3 : Fix 1 screw to attach the Voltage Regulator IC
(IC2761) to the Heat Sink.
Step 4 : Solder the pins of the Voltage Regulator IC (IC2761)
on the reverse side of the Main P.C.B..
Caution : Before soldering, ensure all pins are properly seated
and no 'floating' of pins.
8.27. Replacement of Switch
Transistor (Q2751)
• 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 10) of Item 8.25
Step 1 : Desolder pins of Switch Transistor (Q2751) on reverse
side of Main P.C.B..
Step 2 : Remove 1 screw.
Step 3 : Remove Switch Transistor (Q2751) from the heat sink.
Caution : Avoid touching the Heat Sink during replacement
due to its hight temperature as it may lead to injuries/shock.
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SA-AK870GCP