Panasonic RX-D50EE Service Manual ▷ View online
37
Step 3 : Remove the Transistor (Q4107).
Caution : Avoid touching the Heatsink Unit due to its high
temperature after prolonged use. Touching it may lead to
injuries.
Caution : Avoid touching the Heatsink Unit due to its high
temperature after prolonged use. Touching it may lead to
injuries.
8.16.2.
Assembly of Transistor (Q4107)
Step 1 : Apply Grease to the Heatsink Unit.
Step 2 : Install the Transistor (Q4107) on Main P.C.B. as arrow
shown.
Caution : Ensure the pins are inserted and seated properly
on Main P.C.B..
Step 2 : Install the Transistor (Q4107) on Main P.C.B. as arrow
shown.
Caution : Ensure the pins are inserted and seated properly
on Main P.C.B..
Step 3 : Fix 1 screw on the Transistor (Q4107) onto the Heat-
sink Unit.
sink Unit.
Step 4 : Solder pins of the Transistor (Q4107) on the solder
side of Main P.C.B..
Caution : Check for the solderability of the Transistor
(Q4107).
side of Main P.C.B..
Caution : Check for the solderability of the Transistor
(Q4107).
38
8.17. Replacement of Power IC
(IC4101)
• Refer to “Disassembly of Main P.C.B.”
8.17.1.
Disassembly of Power IC (IC4101)
Step 1 : Desolder pins of the Heatsink Unit.
Step 2 : Remove 1 screw.
Step 3 : Remove Heatsink Unit.
Caution : Avoid touching the Heatsink Unit due to its high
temperature after prolonged use. Touching it may lead to
injuries.
Step 3 : Remove Heatsink Unit.
Caution : Avoid touching the Heatsink Unit due to its high
temperature after prolonged use. Touching it may lead to
injuries.
Step 4 : Desolder pins of the Power IC (IC4101) on the solder
side of the Main P.C.B..
side of the Main P.C.B..
Step 5 : Remove the Power IC (IC4101).
39
8.17.2.
Assembly of Power IC (IC4101)
Step 1 : Install the Power (IC4101) on Main P.C.B..
Caution : Ensure the pins are inserted and seated properly
on Main P.C.B..
Caution : Ensure the pins are inserted and seated properly
on Main P.C.B..
Step 2 : Solder pins of the Power IC (IC4101) on the solder
side of Main P.C.B..
side of Main P.C.B..
Step 3 : Apply Grease to the Heatsink Unit.
Step 4 : Install the Heatsink Unit on Main P.C.B.
Caution : Ensure the pins are inserted and seated properly
on Main P.C.B..
Step 5 : Fix 1 screw on the Transsistor (Q4107) onto the Heat-
sink Unit.
Caution : Check the solderability of the Transistor (Q4107)
and Power IC (IC4101).
Caution : Ensure the pins are inserted and seated properly
on Main P.C.B..
Step 5 : Fix 1 screw on the Transsistor (Q4107) onto the Heat-
sink Unit.
Caution : Check the solderability of the Transistor (Q4107)
and Power IC (IC4101).
Step 6 : Solder pins of the Heatsink Unit on the solder side of
Main P.C.B..
Main P.C.B..
40
8.18. Disassembly of CD Mecha-
nism Unit
• Refer to “Disassembly of Top Cabinet Assembly”.
• Refer to “Disassembly of Main P.C.B.”
• Refer to “Disassembly of Main P.C.B.”
Step 1 : Remove 2 screws.
Step 2 : Remove CD Mechanism Unit as arrow shown.
Step 2 : Remove CD Mechanism Unit as arrow shown.
8.19. Disassembly of CD Servo
P.C.B.
• Refer to “Disassembly of CD Mechanism Unit”
Step 1 : Remove 3 screws.
Step 2 : Desolder pins of the Traverse Motor Unit.
Step 3 : Lift up the CD Servo P.C.B. and turn it over.
Step 2 : Desolder pins of the Traverse Motor Unit.
Step 3 : Lift up the CD Servo P.C.B. and turn it over.
Step 4 : Detach 16P FPC at the connector (CN7001) on the CD
Servo P.C.B..
Step 5 : Remove the CD Servo P.C.B..
Servo P.C.B..
Step 5 : Remove the CD Servo P.C.B..
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