Panasonic RX-D50EE

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23

8.3. Disassembly of Top Cabinet

Assembly

Step 1 : Upset the unit.

Step 2 : Release 2 catches to remove Battery Cover.

Step 3 : Remove 12 screws.

Step 4 : Upset the unit.

Step 5 : Slightly lift up the Top Cabinet Assembly as arrow

shown.

Step 6 : Detach 10P cable at the connector (CN2104) on Main

P.C.B..

Step 7 : Remove the Top Cabinet Assembly.

Table of Contents

Default Chapter1
- Table of Contents1
1 Safety Precautions3
- General Guidelines3
- Before Repair and Adjustment4
- Caution for Fuse Replacement4
- Protection Circuitry4
- Safety Part Information4
2 Warning5
- Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices5
- Precaution of Laser Diode6
- Service Caution Based on Legal Restrictions7
- Handling Precaution for Traverse Unit8
3 Service Navigation10
- Service Information10
4 Specifications11
5 Location of Controls and Components12
- Main Unit and Remote Control Key Button Operations12
- Disc Information13
6 Self Diagnostic and Doctor Mode Setting14
- Self Diagnostic Mode14
- Doctor Mode15
- Doctor Mode Table16
7 Service Fixture & Tools19
8 Disassembly and Assembly Instructions20
- Disassembly Flow Chart21
- Main Parts Location Diagram22
- Disassembly of Top Cabinet Assembly23
- Disassembly of Music Port24
- Disassembly of Front Panel Assembly24
- Disassembly of Panel P.C.B., Standby P.C.B. and Volume P.C.B25
- Disassembly of Woofer Speaker (SP1)26
- Disassembly of Woofer Speaker (SP2)27
- Disassembly of CD Lid27
- Disassembly of Deck Mechanism Unit28
- Disassembly of Deck P.C.B30
- Disassembly of Cassette Lid30
- Disassembly of Mecha Bottom Cover32
- Disassembly of Power P.C.B33
- Disassembly of Main P.C.B35
- Replacement of Transisor (Q4107)36
- Replacement of Power IC (IC4101)38
- Disassembly of CD Mechanism Unit40
- Disassembly of CD Servo P.C.B40
- Disassembly of Battery (1) P.C.B41
- Disassembly of Battery (2) P.C.B42
9 Disassembly and Assembly of Traverse Unit43
- Disassembling Procedures43
- Assembling Procedure44
10 Service Position46
- Checking & Repairing Deck P.C.B46
- Checking & Repairing Panel P.C.B46
- Checking & Repairing Power P.C.B47
- Checking & Repairing Main P.C.B47
- Checking & Repairing CD Servo P.C.B49
11 Measurements and Adjustments50
- Tuner Section50
- Deck Mechanism Section52
12 Voltage Measurement & Waveform Chart53
- CD Servo P.C.b53
- Main P.C.b. (1/2)54
- Main P.C.b. (2/2)55
- Deck P.C.b55
- Panel P.C.b56
- Power P.C.b56
- Waveform Chart57
13 Illustration of IC's, Transistors and Diodes58
14 Wiring Connection Diagram59
15 Schematic Diagram Notes61
16 Schematic Diagram63
- CD Servo Circuit63
- Main Circuit (1/6)64
- Main Circuit (2/6)65
- Main Circuit (3/6)66
- Main Circuit (4/6)67
- Main Circuit (5/6)69
- Main Circuit (6/6)69
- Deck Circuit70
- Panel, Volume & Standby Circuit71
- Power Circuit72
- Battery (1), Battery (2) & Music Port Circuit73
17 Printed Circuit Board74
- CD Servo & Music Port P.C.b74
- Main P.C.b75
- Deck, Panel, Volume & Standby P.C.b76
- Power, Battery (1) & Battery77
18 Terminal Function of IC's79
- Ic7001 (Mn6627954Ama) IC Servo Processor79
- IC7002 (BA5948FPE2) IC 4CH Drive80
- Ic2100 (Rfkwmd45Eg-W) Micro Processor80
19 Exploded View and Replacement Parts List83
- Exploded View and Mechanical Replacement Parts List83
- Electrical Replacement Parts List89

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