Panasonic SA-VK825DEE

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Step 4 Remove the front panel unit.

Note: Ensure 2 claws on bottom chassis is properly and fully

catched to the front panel holes.

SA-VK825DEE

Main Page

Table of Contents3
Before Repair and Adjustment4
Protection Circuitry4
Safety Precautions4
General Guidelines4
Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices6
Handling the Lead-Free Solder6
About Lead Free Solder (Pbf)6
Precaution of Laser Diode7
Cautions to be Taken When Handling Optical Pickup8
Handling Optical Pickup8
Replacing Precautions for Optical Pickup Unit8
Grounding for Preventing Electrostatic Destruction8
Accessories9
Operation Procedures10
Disc Information12
About Highmat14
What 痴 Highmat14
Why Take Advantage of Highmat14
Benefits of Highmat15
Optical Pickup Self-Diagnosis and Replacement Procedure18
Optical Pickup Breakdown Diagnosis18
Self-Diagnosis Function19
Entering into Self-Diagnostic Mode19
Automatic Displayed Error Codes19
Memorized Error Codes19
Service Mode Table20
DVD/CD Self-Diagnosis Error Code Description20
Mode Table20
CR16 Mechanism Ageing Mode23
Operation Lock Function23
Things to Do after Repair24
Cautions to be Taken During Servicing24
Recovery after the DVD Player Is Repaired24
DVD Player Firmware Version Upgrade Process24
Firmware Version Upgrade Process by Using Disc and Recovery Process24
Using Recovery Disc25
Total Usage Time Display25
After Replacement of DVD Module25
Disassembly and Assembly of Main Component26
Disassembly Steps26
Disassembly Flow Chart27
Disassembly of Top Cabinet28
Disassembly of Rear Panel28
Disassembly of DVD Changer Unit28
Disassembly of Main P.C.B29
Disassembly of Power Amp P.C.B30
Disassembly of Power P.C.B31
Disassembly of Transformer P.C.B32
Disassembly of Front Panel Unit32
Disassembly for MIC P.C.B. & Panel P.C.B34
Disassembly of Deck Mechanism Unit35
Replacement for Deck P.C.B35
Replacement for Traverse Deck36
Replacement for Optical Pickup Unit (DVD Mechanism)37
Procedure for Removing CD Loading Mechanism39
CR16 Mechanism Disassembly Procedure39
CR16 Mechanism Assembly Procedure45
Disassembly for Traverse Unit57
Replacement for Cassette Lid58
Rectification for Tape Jam Problem59
Checking for Major P.C.bs60
Checking of Main P.C.B60
Checking of Transformer P.C.B61
Checking of Panel, Deck & Deck Mechanism P.C.B62
Checking of Power P.C.B63
Measurements and Adjustments64
Cassette Deck Section64
Tuner Section65
Alignment Points66
Block Diagram67
Voltage Measurement78
Schematic Diagram79
Optical Pickup Unit Circuit80
A) DVD Module Circuit81
B) Main (Tuner) Circuit88
B) Main Circuit89
C) Panel Circuit & (D) MIC Circuit98
E) Deck Circuit & (F) Deck Mechanism Circuit100
G) Power Circuit102
H) Power Amp Circuit103
I) Transformer Circuit104
J) CD Loading Circuit105
Printed Circuit Board106
A) DVD Module P.C.B. (Side: a & B )106
B) Main P.C.B108
C) Panel P.C.B110
D) MIC P.C.B. & (K) Tuner Pack P.C.B112
E) Deck P.C.B. & (F) Deck Mechanism P.C.B113
G) Power P.C.B. & (H) Power Amp P.C.B114
I) Transformer P.C.B116

Panasonic SA-VK825DEE - Page 33

Table of Contents

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