Panasonic SA-PT760P, Service Manual

Page: 58 / 154

• • • •
Follow (Step 1) to (Step 7) of Item 9.13.
Step 1 Move aside Main P.C.B. and position it according to the
diagram shown.
Step 2 Remove 4 screws on SMPS P.C.B.
Step 3 Detach 8P cable at the connector (CN5500) on D-Amp
P.C.B.
Step 4 Detach 11P cable at the connector (CN5802) on SMPS
P.C.B.
Step 5 Remove 8P cable (SMPS P.C.B. to D-Amp P.C.B.) from
the big wire holder.
Step 6 Remove SMPS P.C.B.
Caution: Handle the heatsink unit B with caution due to its
high temperature after prolonged use. Touching it may
lead to injuries.
Special Note: During reassembling procedures, ensure the
P.C.B. is seated properly at the locators.
9.18. Replacement of Switch
Regulator IC (IC5701)
• • • •
Follow (Step 1) to (Step 3) of Item 9.3.
•
• •
•
Follow (Step 1) to (Step7) of Item 9.12.
• • • •
Follow (Step 1) to (Step 6) of Item 9.17.
Step 1 Desolder pins of the switch regulator IC (IC5701) on the
reverse side of SMPS P.C.B.
Step 2 Remove 1 screw from the switch regulator IC (IC5701).
Step 3 Remove the switch regulator IC (IC5701) from the
heatsink unit B.
Caution: Handle the heatsink unit B with caution due to its
high temperature after prolonged use. Touching it may
lead to injuries.
Note : Refer to the diagrams of SMPS P.C.B. (Item 20.5.) for
location of the part.
9.18.1. Assembly of Switch Regulator IC
(IC5701)
Step 1 Apply grease to the heatsink unit B.
Step 2 Fix and screw the switch regulator IC (IC5701) to the
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SA-PT760P / SA-PT760PC