Opweb.de

CHAPTER 1 GENERALCONTENTS INFORMATION SPECIFICATIONS ... COMPARISON OF FEATURES ... COMPARISON OF MAIN CONTROL IC s ... TIPS FOR SERVICING ... TROUBLE DISPLAY FUNCTION ... How to Remove the Cassette when a Malfunction Has Occurred in the M echanism ... SERVICE MANUAL ABBREVIATION L IS T ... LEADLESS (CHIP) COMPONENT IDENTIFICATION..Instructions on Use and Description of New Functions . 1-1 . 1-2 . 1-4 . 1-5 .1-5 . 1-6 1-7 , 1-9 . 1-12 CHAPTER 2 DISASSEMBLY - VT- F55XE/F640E/F645E/F650E - 1.Before Starting Disassembly ... 2.Disassembly M ethod ... Parts Hierarchy Chart ... Disassembly Procedure Diagrams ... 2-1 .Top cover, front panel, rear panel, RJK board and US-FL m echanism ... 2-2.Cassette door and buttons ... 2-3.SHU or LED board ... 2-4. Front frame and LCD board ... 2-5.US mechanism/MAS board assembly and N&A board ... 2-6.Separation of MAS board from US mechanism ... 2-7.Procedure to remove only the US m echanism ... - VT-F660E - 1. Before Starting Disassembly ... 2.Disassembly M ethod ... Parts Hierarchy Chart ... Disassembly Procedure Diagrams ... 2-1 .Top cover, front panel, rear panel, bottom cover, RJK board and US-FL m echanism ... 2-2.Cassette door and buttons ... 2-3.Front frame, LCJ and F S T ... 2-4. N&A b o a rd ... 2-5.US mechanism/MAS board assem bly ... 2-6.Separation of MAS board from US mechanism ... 2-7.Procedure to remove only the US m echanism ... 2- Cautions When Reinstalling the US M echanism ... 2- CHAPTER 3 ELECTRIC CICUIT ADJUSTMENT AND TROUBLE DISPLAY Service Position ... 3-1 -VT-F55XE/F640E/F645E/F650E- 1.Servicing position during electrical adjustm ent ... 3-1 2.Servicing positions when repairing and checking circuits ... 3-1 3. Be careful of electric sh o cks ... 3-1 Service Position ... 3-2 - VT-F660E - 1.Servicing position during electrical adjustm ent ... 3-2 2.Servicing positions when repairing and checking circuits ... 3-2 3. Be careful of electric sh o cks ... 3-2 Electrical Circuit A djustm ent ... 3-3 1.Test equipment/jigs necessary for adjustment ... 3-3 2.Cautions on adjustm ent ... 3-3 3.Tips.for adjustm ent ... 3-3 4.Connections of test equipm ent ... 3-3 Test Points and Adjustment p o in ts ... 3-4 5.Servo Circuit Adjustments ... 3-5 5-1 .Switching point adjustm ent ... 3-5 5-2.X-value adjustm ent ... 3-5 5-3.Vertical jitter adjustm ent ... 3-6 5-4.Forward slow tracking preset adjustm ent ... 3-6 5-5.Reverse slow tracking preset adjustm ent ... 3-6 6.Audio Circuit Adjustment ... 3-7 6-1..Hi-Fi audio playback level c h e c k ... 3-7 6-2.E-E audio level c h e c k ... 3-7 List of Data in EEPROM and Initial Settings ... 3-8 List of Hidden Commands ... 3-8 1.Mode setting commands during adjustm ent ... 3-8 2.EEPROM initialization com m ands ... 3-8 Initial settings of IC903(EEPROM) ... 3-9 Caution When Replacing IC9()3(EEPROM) ... 3-9 TROUBLE DISPLAY FUNCTION ... 3-10 Troubleshooting According to Malfunction Display ... 3-11 CHAPTER 4 EXPLODED VIEWS ] 1.CABINET SE :CTION ... 4-1 2.US-MECHAhJISM (TOP VIEW) SECTION ... 4-3 3.US-MECHAr> JISM (BOTTOM VIEW) SECTION ... 4-4 4.US-FL MECh HANISM SECTION ... 4-5 CHAPTER 5 REPLACEMENT PARTS LIST ] 1.MECHANISN/I PARTS LIST ... 5-1 2.ELECTRICA L PARTS L IS T ... 5-2 CHAPTER 6 SCHEMATIC, CIRCUIT BOARD AND BLOCK DIAGRAMS AND MICROPROCESSOR PIN FUNCTION TABLES INTERNAL WIRING DIAG RAM ... 6-1 CONNECTION DIAGRAM ... 6-2 CIRCUIT SCHEMATIC B0ARD DIAGRAM DIAGRAM LCD DISPLAY (LCD) [FOR F55XE/F64XE/F650E] ... 6-4 / 6-39 SHUTTLE SWITCH (SHU) [FOR F55XE/F650E] ... 6-5 / 6-38 LCJ/JACK (LCJ) [FOR F660E] ... 6-6 / 6-40 FRONT SHUTTLE (FST) [FOR F660E] ... 6-7 / 6-41 CYLINDER MOTOR ... 6 -8 / - CAPSTAN MOTOR ... 6 -8 / - MECHANISM SENSOR (M AS) ... 6-9 / 6-28 LED (LED) [FOR F645E] ... 6-10 / 6-39 MAIN CONTROL (MAS) ... 6-10 / 6-28 JACK (M AS) ... 6 -1 2/6 -28 SWITCHING REGULATOR(MAS) ... 6 -1 6/6 -28 PRE AMP/FM A U D IO (M A S ) ... 6-18 / 6-28 Y/CHROMA, LINEAR AUDIO (M A S ) ... 6-20 / 6-28 A2 (N&A) [FOR V P S ] ... 6-23 / 6-36 NICAM & A2 (N&A) [EXCPET FOR V P S ] ... 6-24 / 6-36 REAR JACK (RJK) ... 6-26 / 6-36 WAVEFORMS SERVO WAVEFORMS ... 6-9 Y/CHROMA W AVEFORMS ... 6-22 BLOCK DIAGRAMS MAIN CONTROL ... 6-42 SERVO ... 6-44 VID E O ... 6-46 AUDIO ... 6-48 POWER ... 6-50 MICROPROCESSOR PIN FUNCTION TABLES ... 6-52