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CONTENTS

1. MECHANISM DESCRIPTION .................................................................................................2

2. ASSEMBLY DIAGRAM & MAJOR PARTS CHECK ..............................................................5

3. DISASSEMBLY AND REPLACEMENT ................................................................................12

4. MECHANICAL ADJUSTMENT..............................................................................................22

5. ADJUSTMENT OF TAPE TRANSPORTING SYSTEM.......................................................27

6. EXPLODED VIEW AND PARTS LIST....................................................................................37

Содержание K30

Страница 1: ...S M No K3050MECHA March 2000 DAEWOO ELECTRONICS CO LTD http svc dwe co kr Service Manual VCR MECHANISM UNIT K50 K30 MECHA DECK ...

Страница 2: ...ENTS 1 MECHANISM DESCRIPTION 2 2 ASSEMBLY DIAGRAM MAJOR PARTS CHECK 5 3 DISASSEMBLY AND REPLACEMENT 12 4 MECHANICAL ADJUSTMENT 22 5 ADJUSTMENT OF TAPE TRANSPORTING SYSTEM 27 6 EXPLODED VIEW AND PARTS LIST 37 ...

Страница 3: ...R 5 K30 MECHA DECK is operated by 7 MODES EJECT INITIAL REV IDLE PLAY STOP SLOW BRAKE FF REW 6 K30 MECHA DECK reduces the mode shifting time that is picture playing time by using the FULL LOADING SYSTEM that has the DRUM wrapped by the tape 7 K30 MECHA DECK is seperated from the Main PCB When assembling it is connected by B B TYPE CONNECTOR The CAPSTAN MOTOR and DRUM OUTPUT of K30 MECHA DECK and t...

Страница 4: ...3 1 2 1 WIRE DIAGRAM 1 2WIREDIAGRAM ...

Страница 5: ...HI FI 1 A L 2 COMMON 3 A R 4 SP L 5 COMMON 6 SP R 7 GND 8 EP R 9 COMMON 10 EP L CN D 1 CTL 2 CTL 3 AUDIO 4 AUDIO 5 ERASE 6 GND CN 2 1 EVER 5V 2 CAPSTAN F R 3 CAPSTAN FG 4 CTL REF 5 CTL 6 I LIMIT 7 CAPSTAN M T 12V 18V 8 GND 9 IC GND 10 NON CONTACT CN B 1 FE HEAD 2 GND CN A 1 GND 2 DRUM SPD CTL 3 Vcc 4 DRUM FG 5 DRUM PG 6 NON CONNECT 7 NON CONNECT Capstan M T Voltage of No 7 is 12V for normal model ...

Страница 6: ... ASS Y 3 TENSION BAND ASS Y 4 REEL TABLE 5 MAIN BASE ASS Y 6 RECORD SAFETY LEVER 7 S SUB BRAKE ASS Y 8 S MAIN BRAKE ASS Y 9 IDLER PLATE TOTAL ASS Y 10 T MAIN BRAKE ASS Y 11 T SUB BRAKE ASS Y 12 RELAY LEVER 13 CAPSTAN MOTOR 14 PINCH LEVER TOTAL ASS Y 15 L C BRKT TOTAL ASS Y 16 CAM GEAR 17 A C HEAD TOTAL ASS Y 18 T SLANT POLE ASS Y 19 DRUM TOTAL ASS Y ...

Страница 7: ...6 B BOTTOM VIEW 1 CAPSTAN MOTOR 2 F L RACK 3 CONNECT PLATE 4 REEL BELT 5 REEL GEAR TOTAL ASS Y 6 RECORD SAFETY LEVER 7 L LOADING ASS Y 8 R LOADING ASS Y 9 DRUM TOTAL ASS Y 10 LOADING RACK ASS Y ...

Страница 8: ...7 2 1 2 PARTS LOCATION OF FRONT LOADING ASS Y A TOP VIEW B FRONT VIEW ...

Страница 9: ...ing 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 2 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...

Страница 10: ... NAME 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 T SUB BRAKE ASS Y TENSION BAND ASS Y S MAIN BRAKE ASS Y T MAIN BRAKE ASS Y PINCH ROLLER ASS Y AC HEAD ASS Y FE HEAD REEL GEAR TOTAL ASS Y Note Even though the unit is not used frequently cleaning lubrication and replacement of the belt should be undertaken every 2 years ...

Страница 11: ...V CHECKING OF THE TAPE DAEWOO TRANSPORTING SYSTEM 3 CASSETTE TAPE KT 300NV MEASUREMENT OF KOKUSAI KT 300RV REEL TORQUE 4 VHS SPINDLE TSH V4 MEASUREMENT OF HEIGHT GAUGE REEL HEIGHT 5 TENTELO METER T2 H7 UM MEASUREMENT OF TENTELO THE BACK TENSION FAN TYPE MEASUREMENT OF THE 6 TENSION METER BELOW 3KG PRESSING FORCE FOR THE PINCH ROLLER 7 DENTAL MIRROR CHECKING OF THE TAPE TRANSPORTING SYSTEM DRIVER 1...

Страница 12: ...11 2 3 2 SKETCH OF JIGS AND TOOLS ALIGNMENT TAPE CLEANING TAPE 3 0 20 10 0 10 2 0 3 0 3 0 20 10 0 10 2 0 3 0 VHS SPINDLE HEIGHT GAUGE 8 1 8 2 8 3 ...

Страница 13: ... See Fig 3 1 a Remove 2 screws fixing the Front Loading ASS Y b Lift the rear of the front loading assembly to separate it from the Main Base NOTE The FRONT LOADING ASSEMBLY can be removed only in the eject position 12 AF002 Fig 3 1 FRONT LOADING ASS Y SEPARATION ...

Страница 14: ...g the F L BRACKET R and move the F L BRACKET R in the direction of arrow to separate it from the TOP PLATE and CASSETTE HOLDER ASSEMBLY b Remove the CASSETTE HOLDER ASSEMBLY Fig 3 2 c Remove one screw holding the PRISM LINK R and remove the PRISM LINK R from the F L BRACKET R Fig 3 3 ...

Страница 15: ... DOOR OPENER Fig 3 4 f Remove the LOADING LEVER ASSEMBLY by pressing the connected section of the loading lever assembly in the directions of the arrows Fig 3 5 g Remove the SAFETY SPRING between the SAFETY LEVER and the CASSETTE HOLDER PLATE Fig 3 5 h Remove the RELEASE SPRING between the RELEASE LEVER and the SAFETY LEVER R Fig 3 5 ...

Страница 16: ...he F L BRAKCET R Fig 3 6 3 3 DRUMASS Y EARTHBRACKETASS YREMOVAL See Fig 3 7 a Remove three screws fixing the DRUM TOTAL ASSEMBLY b Carefully lift the DRUM TOTAL ASSEMBLY from the DECK MECHANISM taking care not to damage or touch the VIDEO HEAD NOTE After assembling the DRUM TOTAL ASSEMBLY confirm that the TAPE runs smooth and refer to chapter 5 ADJUSTMENT OF THE TAPE TRANSPORTING SYSTEM When assem...

Страница 17: ... remove the REEL BELT b Remove one POLY WASHER c Remove the LOADING RACK ASS Y d Remove R L LOADING ASS YS and e Remove the S and T SLANT POLES and by pulling them in the directions of the arrows CAUTION Take care not to get the GUIDE ROLLERS of the S T SLANT POLES stained with GREASE When reassembling refer to Fig 3 9 ...

Страница 18: ...e TAPE TRANSPORTING SYSTEM spread the A C HEAD NUT AZIMUTH SCREW and TILT SCREW with LOCKING PAINT 3 6 L CBRACKETASS YREMOVAL See Fig 3 11 a Remove one screw from the L C BRACKET ASSEMBLY b Remove the L C BRACKET ASSEMBLY from the MAINBASE 3 7 PINCHLEVER TOT ALASS YREMOVAL See Fig 3 11 a Remove one POLY WASHER from the PINCH LEVER POST of the MAINBASE b Unhook the PINCH LEVER SPRING from the hook ...

Страница 19: ...SE by pulling it in the direction of the arrow NOTE When reassembling refer to Fig 3 12 13 3 9 S TMAIN SUBBRAKEASS YREMOVAL See Fig 3 14 a Remove the S T MAIN BRAKE Assembly from the MAIN VASE b Unhook the S SUB BRAKE SPRING from the MAINBASE and remove the S SUB BRAKE LEVER ASSEMBLY from the MAIN BASE c Unhook the T SUB BRAKE SPRING from the MAINBASE and remove the T SUB BRAKE LEVER ASSEMBLY ...

Страница 20: ...ating the tab of hook A remove the TENSION BAND ASSEMBLY Fig 3 16 NOTE After assembling the TENSION BAND ASSEMBLY on the MAINBASE adjust the position of TENSION POLE as shown Fig 3 17 Avoid getting GREASE OIL or foreign substance on the FELT of the BAND BRAKE Take care not to deform tab A when separating it DATUM HOLE OF MAINBASE DATUM HOLE OF TENSION LEVER ...

Страница 21: ...e CAPSTAN MOTOR and separate the CAPSTAN MOTOR a Remove one POLY WASHER from the REEL GEAR POST and remove the IDLER PLATE TOTAL ASSEMBLY from the MAIN BASE b Remove the S T REEL TABLES and two POLY SLIDERS from the DECK MECHANISM CAUTION When disassembling or assembling the IDLER PLATE TOTAL ASSEMBLY take care not to bend it ...

Страница 22: ...ECT PLATE from the MAINBASE by pushing it in the direction of the arrow NOTE When removing the CONNECT PLATE with the F L RACK installed take care not to damage or bend the CONNECT PLATE After assembling or disassembling the REEL GEAR TOTAL ASSEMBLY take care not to get OIL GREASE or other substances on the REEL BELT Take care not to deform or break tab B Check the assembly state the operating sta...

Страница 23: ... sure that the DATUM HOLE of the CAM GEAR is aligned with the DATUM HOLE in the MAINBASE in the EJECT mode as shown in Fig 4 1 b Make sure that part A of the RELAY LEVER when assembled in the CONNECT PLATE is fully rotated to the left side of B of the MAINBASE and is touching boss C of the MAINBASE as shown in Fig 4 2 CAM GEAR F L RACK DATUM HOLE OF CAM GEAR DATUM HOLE OF MAIN BASE ...

Страница 24: ...AINBASE make sure that the two triangular marks of CAM SWITCH are aligned with each other as shown in Fig 4 3 d Make sure that boss A of the PINCH LEVER TOTAL ASSEMBLY is positioned at point B of the CAM GEAR as shown in Fig 4 4 TRIANGLE MARKS MUST MEET EACH OTHER ...

Страница 25: ... the notch B on the R LOADING ASSEMBLY as shown in Fig 4 5 f Make sure that the teeth of the LOADING RACK ASSEMBLY are aligned with those of the R LOADING ASSEMBLY so that the hole of the LOADING RACK ASSEMBLY aligns with the circular mark on the R LOADING ASSEMBLY as shown in Fig 4 5 ...

Страница 26: ...ng result should be between 25 and 33 grams d If the measuring result is not within this specification refer to the NOTE below or repeat 4 4 TENSION POLE POSITION ADJUSMENT Fig 4 7 DATUM HOLE TAPE NOTE If the measuring result is not within the specification change the TENSION SPRING position To decrease the result choose hook A Otherwise choose hook B Confirm that all of the three probes of the TE...

Страница 27: ...off the power when the MECHANISM is in the desired position a MAKE MECHANICAL MODE be PLAY MODE Refer to 4 3 MECHANICAL MODE b Confirm that the datum hole of TENSION LEVER is aligned with the datum hole of the MAIN BASE c If requirement b is not satisfied turn the BAND BRAKE ADJUST CAP clockwise or counter clockwise until the two datum hole are aligned with each other 4 4 TENSIONPOLE POSITIONADJUS...

Страница 28: ... TRANSPORTING SYSTEM S T GUIDE ROLLER HEIGHT ADJUSTMENT DRUM TOTAL ASS Y A C HEAD ASS Y PINCH LEVER TOTAL ASS Y S TGUIDEPOSTFLANGE A C HEAD AS ADJUSTMENT TILT ADJUSTMENT CLEANING AUDIOAZIMUTHADJUSTMENT A C HEAD ADJUSTMENT X POSITION ADJUSTMENT PLAYBACKPHASEADJUSTMENT LINEARITY ADJUSTMENT DRUM ENTRANCE EXIT ENVELOPE FINE TUNING REVIEW A PLAY CHANGING OPERATION CHECK AUDIO AZIMUTH ADJUSTMENT AUDIO O...

Страница 29: ...M has changed To prevent this it is essential to know thoroughly and observe the following INSTRUCTIONS A ADJUSTMENT OF THE S T GUIDE ROLLER a Play back a T 120 TAPE b Make sure that excessive TAPE wrinkle does not occur at each S T GUIDE ROLLER c If TAPE wrinkle is observed at the S T GUIDE ROLLER adjust them so that no wrinkle occurs ...

Страница 30: ...HEAD AZIMUTH SCREW to obtain the maximum audio output signal 9 3dBm D THE HEIGHT ADJUSTMENT OF A C HEAD a Play back a T 120 TAPE b Make sure that the gap is 0 25mm between the lower end of TAPE and that of A C HEAD c When the gap is longer than 0 25mm turn the A C HEAD HEIGHT ADJUST NUT counter clockwise When the gap is shorter than 0 25mm turn it clockwise Repeat this procedure untill 0 25mm is o...

Страница 31: ...n the VR CONTROL to the center point If the VR CONTROL is completly turned counter clockwise it is positioned on another tracking center f With the VR CONTROL in the center state turn the ADJUST BOSS by using FLAT TYPE SCREW DRIVER and adjust the X POSITION to obtain the maximum envelope waveform TEST POINTS S W PULSE TEST PIN PATH ADJ FIXTURE ENVELOPE TEST PIN PATH ADJ FIXTURE MEASURING EQUIPMENT...

Страница 32: ...T TAPE COLOR BAR SIGNAL OR MONOSCOPE SIGNAL c Connect the channel 1 scope probe to the S W PULSE TEST PIN of the PATH ADJ FIXTURE d Connect the channel 2 scope probe 1V div to the VIDEO OUT of the MAIN CIRCUIT BOARD e Play back the ALIGNMENT TAPE f Adjust the PG volume for time interval of 6 5H 0 5H between switching pulse and V sync signal TEST POINTS S W PULSE TEST PIN PATH ADJ FIXTURE VIDEO OUT...

Страница 33: ...T PIN of the PATH ADJ FIXTURE e Adjust the VR CONTROL of the PATH ADJ FIXTURE for maximum envelope signal output of the alignment tape f Adjust the S T GUIDE ROLLER until the envelope signal waveforms of the entrance and exit sides are as shown in Fig 5 7 TEST POINTS S W PULSE TEST PIN PATH ADJ FIXTURE ENVELOPE TEST PIN PATH ADJ FIXTURE MEASURING EQUIPMENT OSCILLOSCOPE ADJUSTMENT VR CONTROL PATH A...

Страница 34: ... the S T GUIDE ROLLER TEST POINTS S W PULSE TEST PIN PATH ADJ FIXTURE ENVELOPE TEST PIN PATH ADJ FIXTURE MEASURING EQUIPMENT OSCILLOSCOPE ADJUSTMENT VR CONTROL PATH ADJ FIXTURE S T GUIDE ROLLER TAPE TRANSPORTING SYSTEM DRUM ENTRANCE DRUM EXIT QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ QQ...

Страница 35: ...he REVIEW MODE about 15 secs change the REVIEW MODE to the PLAY BACK MODE g Change operation mode from REVIEW MODE to PLAY MODE and then make sure that the envelope waveform is restored to the maximum condition within 3 seconds h If the requirement is not satisfied make sure that the TAPE runs normal at the lower part of the T GUIDE POST Then adjust the S T GUIDE ROLLER precisely TEST POINTS S W P...

Страница 36: ...d A C HEAD HEIGHT NUT to obtain the maximum audio output Fig 5 3 K A C HEAD AZIMUTH ADJUSTMENT a Connect the OSCILLOSCOPE to the AUDIO OUTPUT JACK b Play back the ALIGNMENT TAPE NTSC DN2 SP 7KHz PAL DP2 SP 6KHz c Adjust the A C HEAD AZIMUTH SCREW to obtain the audio output 9 3dBm Fig 5 3 d Repeat the process H DRUM ENTRANCE EXIT TEST POINTS AUDIO OUTPUT AUDIO OUTPUT JACK MEASURING EQUIPMENT OSCILL...

Страница 37: ...r position When the VR CONTROL is completely turned counter clockwise it is set at another tracking center position f When the VR CONTROL is fully rotated clockwise or counter clockwise turn the ADJUST BOSS of the MAINBASE and adjust the X POSITION for the envelope waveform to be as shown in Fig 5 11 g Repeat the process F PLAYBACK PHASE ADJUSTMENT TEST POINTS S W PULSE TEST PIN PATH ADJ FIXTURE E...

Страница 38: ...37 6 EXPLODED VIEW AND PARTS LIST 6 1 EXPLODED VIEW OF DECK ASS Y TOP VIEW ...

Страница 39: ...38 6 2 EXPLODEDVIEWOFDECKASS Y BOTTOMVIEW ...

Страница 40: ...39 6 3 EXPLODEDVIEWOFF LASS Y ...

Страница 41: ...40 D0040 D0020 D0050 D0010 D0080 D0090 D0060 D0070 D0040 ...

Страница 42: ...L AS DRP 9401 4HD MONO NON HEAD CLNER K30 M1OOO 97PC0339D DECK TOTAL AS DRP 9400 4HD MONO NON K30 M1OOO 97PC0340D DECK TOTAL AS DRP 9420 4HD MONO DLC K30 M1OOO 97PC0341D DECK TOTAL AS DRP 9421 4HD MONO DLC HEAD CLNER K30 M1OOO 97PC0342D DECK TOTAL AS DRP 9600 4HD HI FI NON K30 M1OOO 97PC0343D DECK TOTAL AS DRP 9601 4HD HI FI NON HEAD CLNER K30 M1OOO 97PC0253D DECK TOTAL AS DRP 9620 4HD HI FI DLC K...

Страница 43: ...L AS DRS 9600 4HD HI FI NON K30 97PC0254D DECK TOTAL AS DRS 9620 4HD HI FI DLC K30 SECAM 97PC0327D DECK TOTAL AS DRS 9400N 4HD MONO NON K50 97PC0325D DECK TOTAL AS DRS 9420N 4HD MONO DLC K50 97PC0326D DECK TOTAL AS DRS 9600N 4HD HI FI NON K50 97PC0324D DECK TOTAL AS DRS 9620N 4HD HI FI DLC K50 LOC STOCK NO PART NAME DESCRIPTION ...

Страница 44: ...HD HI FI NON PAL AD001 97PA265871 DRUM PRICE AS CYP KT112 2HD SP ONLY DLC AD001 97PA269901 DRUM PRICE AS CYP KT110 2HD SP ONLY NON AD001 97PA265971 DRUM PRICE AS CYP KT212 2HD SP LP DLC AD001 97PA270001 DRUM PRICE AS CYP KT210 2HD SP LP NON AD001 97PA266071 DRUM PRICE AS CYP KT412 4HD MONO DLC AD001 97PA270101 DRUM PRICE AS CYP KT410 4HD MONO NON AD001 97PA272771 DRUM PRICE AS CYP KT612 4HD HI FI ...

Страница 45: ...ECHA K30 K50 A0600 97SA308510 L LOADING AS K30 MECHA K30 K50 A0700 97SA308600 R LOADING AS K MECHA K30 K50 A0800 97SA308400 LODING RACK AS K MECHA K30 K50 A0900 97S3101800 WASHER POLY D3 1XD8XT0 5 K30 K50 A1000 97S8101700 MOTOR CAPSTAN F2QTB44 K30 K50 A1000 97S8101400 MOTOR CAPSTAN TIMELAPSE K30 K50 A1100 97S3102000 SCREW TAPPTITE TT2 BIN P 2 6X7 MFZN K30 K50 A1200 97S3004000 SPG AC HEAD SUS304WPB...

Страница 46: ...29004 OIL LUBRICANT OA 305P K30 K50 A3800 2291131304 GREASE DELUXE 5221G NAM YOUNG K30 K50 AD002 7274301011 SCREW TAPPTITE TT3RND3X10MFZN SCREWFORASSEMLINGDRUM K30 K50 AF002 7274300611 SCREW TAPPTITE TT3 RND 3X6 MFZN SCREW FOR ASSEMLING F L K30 K50 F L AS AF001 97SA251400 F L AS K MECHA K30 K50 A5000 97S0902000 PLATE TOP SECC T1 0 K30 K50 A5100 97S2400900 BRKT F L R SECC T1 0 K30 K50 A5200 97SA311...

Страница 47: ...DAEWOO ELECTRONICS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC E mail G7F00E web dwe co kr TEL 82 2 360 7802 FAX 82 2 360 7877 ...

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