Panasonic SC-TM23 Service Manual

Contents

Panasonic SC-TM23 Service Manual Manual pdf 2 page image

WARNINGThis service information is designed for experienced repair technicians only and is not designed for use by the generalpublic.It does not contain warnings or cautions to advise non-technical individuals of potencial dangers in attemping toservice a product.Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attemptto service or repair the product or products dealt with in this service information by anyone else could result in seriousinjury or death.!13 CD Test Mode Function13.1 How to set CD test mode13.2 CD Automatically Adjustment result indication13.3 CD Mecha Aging Test Mode (CR20)13.4 Micon ROM Checksum and Version Display Mode14 Measurements and Adjustments14.1 Cassette Deck Section14.1.1 Tape Speed Adjustment (Deck 1 / 2)14.1.2 Bias and Erase Voltage Check14.1.3 Bias Frequency Adjustment (Deck 1 / 2)14.2 Tuner Section14.2.1 AM-IF Alignment14.2.2 AM RF Adjustment14.3 Alignment Points14.3.1 Cassette Deck Section14.3.2 Tuner Section15 Block Diagram16 Voltage Measurement17 Schematic Diagram17.1 (A) CD Servo Circuit17.2 (B) Main (Tuner) Circuit17.3 (B) Main Circuit17.4 (C) Panel Circuit17.5 (D) Transformer Circuit, (E) CD Detect Circuit, (F)Spindle Position Circuit & (G) CD Loading Circuit17.6 (H) Power Circuit17.7 (I) Deck Circuit & (J) Deck Mechanism Circuit18 Printed Circuit Board18.1 (A) CD Servo P.C.B.18.2 (B) Main P.C.B.18.3 (C) Panel P.C.B.18.4 (D) Transformer P.C.B.18.5 (E) CD Detect P.C.B., (F) Spindle Position P.C.B., (G) CDLoading P.C.B. & (K) Tuner Pack P.C.B.18.6 (H) Power P.C.B.18.7 (I) Deck P.C.B. & (J) Deck Mechanism P.C.B.19 Wiring Connection Diagram20 Illustration of IC ’ s, Transistors and Diodes21 Terminal Function of IC ’ s21.1 IC7002 (MN6627953HB) Servo processor / Digital signalprocessor / Digital filter / D / A converter21.2 IC7003 (AN8739SBTE2) Focus coil / Tracking coil /Traverse motor / Spindle motor drive21.3 IC2801 (C2CBJG000565) System Microprocessor22 Troubleshooting Guide23 Parts Location and Replacement Parts List23.1 Deck Mechanism (RAA4502-S)23.1.1 Deck Mechanism Parts Location23.1.2 Deck Mechanism Parts List23.2 CD Loading Mechanism (RD-DAC026-S)23.2.1 CD Loading Mechanism Parts Location23.2.2 CD Loading Mechanism Parts List23.3 Cabinet23.3.1 Cabinet Parts Location23.3.2 Cabinet Parts List23.4 Electrical Parts List23.5 Packing Materials & Accessories Parts List23.6 Packaging1 Safety Precaution1.1 Insulation Resistance Test1.2 Caution for fuse replacement2 Before Repair and Adjustment3 Protection Circuitry4 Prevention of Electro Static Discharge (ESD) toElectrostatically Sensitive (ES) Devices5 Handling the Lead-free Solder5.1 About lead free solder (PbF)6 Handling Precautions For Traverse Deck7 Precaution of Laser Diode8 Accessories9 Operation Procedures10 Disassembly and Assembly of Main Component 10.1Disassembly flow chart10.2 Gear for servicing (jig) Information10.3 Disassembly of Top Cabinet10.4 Disassembly of CD Lid10.5 Disassembly of Rear Panel10.6 Disassembly of CD Mechanism Unit10.7 Disassembly of Main P.C.B.10.8 Disassembly of Power P.C.B.10.9 Disassembly of Transformer P.C.B.10.10 Disassembly of Front Panel Unit10.11 Disassembly of Deck Mechanism Unit10.12 CD Mechanism Main Component ReplacementProcedures10.12.1 Replacement of the Traverse Deck10.12.2 Replacement for the Disc Tray10.12.3 Disassembly and reassembly for mechanismbase drive unit10.12.4 Replacement for the motor ass ’ y10.13 Replacement for the pinch roller ass ’ y and headblock10.14 Replacement for the Deck motor ass ’ y, capstanbelt A, capstan belt B and winding belt10.15 Replacement for the cassette lid ass ’ y10.16 Rectification for tape jam problem11 Checking for major P.C.Bs11.1 Checking of Main P.C.B.11.2 Checking of Transformer P.C.B.11.3 Checking of Panel, Deck & Deck Mechanism P.C.B.11.4 Checking of Power P.C.B.12 Self-Diagnostic Function12.1 Self-diagnostic display12.2 How to enter the Self-Diagnostic Function12.3 Cassette Mechanism Test (For error code H01, H02,H03, F01)12.4 CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29,F30, H15 & H16)12.5 To clear all Error code12.6 To exit from Self-Diagnostic function12.7 Power Amplifier Failure (F61)12.8 Description of Error Code12.8.1 Abnormality detection for Deck Mechanism block12.8.2 Abnormality detection for CD / Changer block12.8.3 Power supply related error detection12.8.4 Error Code (CR20 Mechansim)Contents