SA-AK780PN - Panasonic

9 Disassembly and Assembly Instructions
“ATTENTION SERVICER”
Be careful when disassembling and servicing.
Some chassis components may have sharp edges
Special Note:
1. This model uses a CD Mechanism Unit (CR14C). In this following section does not contain the necessary assembly and disassembly
information except the assembly and disassembly of the traverse unit. Kindly refer to the original service manual for
the CD Mechanism Unit. (Order No. MD0805031CE).
2. This section describes the disassembly procedures for all the major printed circuit boards and main components.
3. Before the disassembly process was carried out, do take special note that all safety precautions are to be carried out.
(Ensure that no AC power supply is connected during disassembling.)
4. For assembly after operation checks or replacement, reverse the respective procedures.
Special reassembly procedures are described only when required.
5. Do take note of the locators on each printed circuit board during reassembling procedures.
6. The Switch Regulator IC may have high temperature after prolonged use.
7. Use caution when removing the top cabinet and avoid touching heat sinks located in the unit.
8. Select items from the following index when checks or replacement are required.
• Disassembly of Top Cabinet
• Disassembly of CD Mechanism Unit (CR14C)
• Disassembly of Rear Panel
• Disassembly of Fan Unit
• Disassembly of Front Panel Assembly
• Disassembly of Mic P.C.B.
• Disassembly of Panel P.C.B.
• Disassembly of Dynamic Bass Knob & Dynamic Bass Button Unit
• Disassembly of Memory P.C.B.
• Disassembly of MPort/Headphone P.C.B.
• Disassembly of CD Servo P.C.B.
• Disassembly of D-Amp P.C.B. & Fan
• Replacement of Audio Digital Amp IC (IC5400)
• Replacement of Audio Digital Amp IC (IC5000)
• Replacement of Audio Digital Amp IC (IC5200)
• Disassembly of Main P.C.B.
• Disassembly of SMPS P.C.B.
• Replacement of Switching Regulator IC (IC5701)
• Replacement of Rectifier Diode (D5702)
• Replacement of Regulator Diode (D5801)
• Replacement of Regulator Diode (D5802)
• Replacement of Regulator Diode (D5803)
• Disassembly of AC Inlet P.C.B.
• Disassembly of Jupiter P.C.B.
• Disassembly of Voltage Selector P.C.B. (For PH only)
• Replacement of Traverse Unit Assembly
• Disassembly of CD Lid
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