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manual abstract
2000 DAEWOO ELECTRONICS CO., LTD. http : //svc.dwe.co.kr Service Manual VCR MECHANISM UNIT (T-MECHA DECK) CONTENTS 1. ASSEMBLY DIAGRAM AND A/S............................................................................................2 2. WIRE DIAGRAM........................................................................................................................5 3. PERIODIC MAINTENANCE AND SERVICE SCHEDULE ....................................................6 4. SERVICE SCHEDULE FOR THE MAJOR PARTS ................................................................7 5. JIGS AND TOOLS.....................................................................................................................8 6. DEASSEMBLY AND REPLACEMENT .................................................................................10 7. MECHANICAL ADJUSTMENT..............................................................................................16 8.ADJUSTMENT OF THE TAPE TRANSPORTING SECTION ..............................................19 9. EXPLODED VIEW AND PARTLIST .......................................................................................25 1 2 1. Assembly diagram 1-1. DECK Assembly diagram A. Upper View ASSEMBLY DIAGRAM AND A/S 1 MAINBASE ASS’Y 2 DRUM ASS’Y 3 FE HEAD 4 S SLANT POLE ASS’Y 5 TENSION BAND ASS’Y 6 S BRAKE ASS’Y 7 S REEL TABLE 8 REEL BRKT TOTAL ASS’Y 9 IDLER PLATE TOTAL ASS’Y 10 T BRAKE ASS’Y 11 FL RACK 12 RELAY LEVER 13 CAPSTAN MOTOR 14 LC BRKT ASS’Y 15 PINCH LEVER TOTAL ASS’Y 16 CAM GEAR 17 AC HEAD ASS’Y 18 T SLANT POLE ASS’Y 19 HEAD CLEANER fig1-1 3 ASSEMBLY DIAGRAM AND A/S (CONTINUED) B. Lower View 20 L LOADING ASS’Y 21 R LOADING ASS’Y 22 CONNECT PLATE 23 REEL BELT 24 LOADING RACK fig1-2 4 ASSEMBLY DIAGRAM AND A/S (CONTINUED) 1-2. FRONT LOADING Assembly diagram 1 FL BRKT L 2 TOP PLATE 3 SAFETY LEVER 4 LOADING LEVER AS4 5 CST HOLDER AS 6 DOOR OPENER 7 SAFETY LEVER R 8 FL BRKT R fig2 5 2. Connector Pin Arrangement 1. Wire Diagram WIRE DIAGRAM PERIODIC MAINTENANCE AND SERVICE SCHEDULE 1. PERIODIC MAINTENANCE AND SERVICE SCHEDULE A. In order to effectively maintain the excellent performance and fully utilize the features of this apparatus, and to lengthen the life of the mechanism and tapes, we strongly urge you to perform periodic maintenance and inspection, as described below. * After repairing, do the maintenance described below, irrespective of the length of time in use. B. Cleaning of the Head Drum Ass'y - Clean the Drum assembly with a cleaning cloth soaked in liquid cleaner (alcohol) by placing lightly against the Drum and slowly revolving the rotating HEAD DRUM Ass'y by hand (Do not rotate the upper Drum by applying electric power to the motor when cleaning). - Do not move the cleaning cloth in the vertical direction against the heat-tip. C. Cleaning the tape transporting section. - Clean the tape transporting parts with a cleaning cloth soaked in alcohol. D. Cleaning of driving section -Clean the driving section with a cloth soaked in alcohol. E. Routine inspection - Perform maintenance and inspection as separately described depending on the period of time in use. - Refer to the table of 2-2-3. 2. CLEANING AND LUBRICATION A. Cleaning of Tape Transporting section and Driving section a. Cleaning of Tape Transporting section - The following parts should be cleaned after every 500 hours of use. • TENSION POLE • S SLANT POLE • AC HEAD/AE HEAD • S GUIDE POST • VIDEO HEAD/DRUM • T GUIDE POST • FE HEAD • T SLANT POLE • CAPSTAN SHAFT • S GUIDE ROLLER • T GUIDE ROLLER • PINCH ROLLER • VERTICAL POST - As the above parts contact with the video tape, they tend to collect dust particles. If they are stained with dust or foreign substance it has a bad effect on the picture and may lead to damage of the tape. - After cleaning with alcohol, allow the parts to dry thoroughly before using a cassette tape. b. Cleaning of Driving section • REEL TABLE • CAPSTAN FLYWHEEL/PULLEY • REEL PULLEY B. LUBRICATION • S REEL POST • T REEL TABLE POST • REEL GEAR POST - After cleaning these parts with alcohol, lubricate these with one or two drops of oil. 6 SERVICE SCHEDULE FOR THE MAJOR PARTS SERVICE SCHEDULE FOR THE MAJOR PARTS The following parts should receive periodic service, according to the recommended intervals. NAME PERIODIC SERVICE (TIME) 1000 2000 3000 4000 5000 DRUM TOTAL ASS'Y CAPSTAN MOTOR L/C BRKT TOTAL ASS'Y REEL BELT IDLER PLATE TOTAL ASS'Y REEL TABLE TENSION BAND ASS'Y S, T BRAKE ASS'Y PINCH ROLLER ASS'Y AC HEAD ASS'Y FE HEAD REEL GEAR TOTAL ASS'Y : Check and Replace if necessary. : Replace Note: Even though the unit is not used frequently, cleaning, lubrication and replacement of the belt should be under- taken every 2 years. 7 JIGS AND TOOLS 1. List of Jigs and Tools NO ITEMS MODEL FIG. N O REMARKS 1 ALIGNMENT TAPE NTSC: SP MONOSCOPE 7KHz SP COLORBAR 1KHz (EP MONOSCOPE) PAL/SCAM: SP MONOSCOPE 6KHz SP COLORBAR 1KHz (LP MONOSCOPE) ! CHECKING OF THE TAPE TRANSPORTING SYSTEM 2 CLEANING TAPE (DAEWOO...