Instruction/ maintenance manual of the product VCR MECHANISM UNIT Daewoo
Go to page of 34
S/M No . : TMECHA Feb. 2000 D AE W OO ELECT R ONICS C O . , L T D . http : //svc.dwe .co .kr Service Manual VCR MECHANISM UNIT (T-MECHA DECK).
1 CONTENTS 1. ASSEMBL Y DIAGRAM AND A/S ............................................................................................ 2 2. WIRE DIAGRAM ....................................................................................................
2 2 1. Assembly diagram 1-1. DECK Assembly diagram A. Upper V iew ASSEMBL Y 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 .
3 ASSEMBL Y DIAGRAM AND A/S (CONTINUED) B. Lower V iew 20 L LOADING ASS’Y 21 R LOADING ASS’Y 22 CONNECT PLATE 23 REEL BELT 24 LOADING RACK fig1-2.
4 ASSEMBL Y 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. Wir e Diagram WIRE DIAGRAM.
6 1. PERIODIC MAINTENANCE AND SER VICE 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.
7 SER VICE SCHEDULE FOR THE MAJOR P AR TS SER VICE SCHEDULE FOR THE MAJOR P AR TS The following parts should receive periodic service, according to the recommended intervals.
8 JIGS AND T OOLS 1. List of Jigs and T ools FIG. NO ITEMS MODEL N O REMARKS NTSC: SP MONOSCOPE 7KHz CHECKING OF THE 1 ALIGNMENT T APE SP COLORBAR 1KHz ! T APE TRANSPOR TING (EP MONOSCOPE) SYSTEM P AL.
9 JIGS AND T OOLS(CONTINUED) 2. Sketch of Jigs and T ools ALIGNMENT TAPE ! # % & CLEANING TAPE @ 30 20 10 0 10 20 30 30 20 10 0 10 20 30 VHS SPINDLE HEIGHT GAUGE $ ^ *.
10 1. Removal of the FRONT LOADING Ass’y (Fig. 3.1) a. Unscrew the 2 screw holding the F/L. b. Separate the F/L Ass’y from the MAINBASE settling down point by lifting the rear part of F/L (Screw Hole). 2. Deassembly of FRONT LOADING Ass’y (FIg. 3.
11 d. Separate the LOADING LEVER Ass’y by pressing the connection point from the CASSETTE HOLDER Ass’y. (Fig. 3.4) e. Remove the SAFETY SPRING connecting the SAFETY LEVER and CASSTTE HOLDER PLATE. (Fig. 3.4) f. Remove the RELEASE SPRING connecting the RELEASE LEVER and SAFETY LEVER.
12 4. Deassembly of LOADING RACK, LOADING ASS’Y , S/T SLANT POLE ASS’Y (Fig. 3.7, 3.8) a. Turn out the DECK MECHANISM and remove the LOADING RACK @ after unscrewing the SCREW ! . b. Disintegrate the R LOADING AS # and L LOADING AS $ . c. Disintegrate the S SLANT POLE AS % and T SLANT POLE AS ^ by moving those part in arrow direction.
13 6. Deassembly of the LC BRKT ASS’Y , PINCH LEVER TOT AL ASS’Y (Fig. 3.10) a. Separate the LC BRKT Ass’y @ after removing the 3 screw ! . b. Separate the LC BRKT Ass’y @ from the DECK MECHANISM. c. Disintegrate the PINCH LEVER TOTAL Ass’y # .
14 8. Deassembly of the S/T BRAKE ASS’Y (Fig. 3.13) a. Unhook the S BRAKE SPRING # from the MAIN- BASE HOOK ! . b. Remove the S BRAKE Ass’y @ from the mainbase. c. Remove the T BRAKE SPRING ^ from the MAIN- BASE HOOK $ . d. Remove the T BRAKE Ass’y % .
15 12. Deassembly of the REEL T ABLE, IDLER PLA TE TOT AL ASS’Y (Fig. 3.16) a. Remove the POLY WASHER ! and separate the IDLER PLATE TOTAL Ass’y @ from the mainbase. b. Remove the REEL TABLE $ from the REEL TABLE POST # of the MAINBASE. 13. Deassembly of the REEL BRKT TOT AL ASS’Y , CONNECT PLA TE (Fig.
16 1. Mechanical Adjustment (Fig. 4.1~4.4) In case of deassembly and reassembly for fixing the mechan- ical problem, check the following check point. a. Make 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.
17 d. Make sure that the triangular mark “A” of the L LOAD- ING Ass’y is aligned with the mark “b” of the R LOAD- ING Ass’y. (Fig. 4.4) e. Reference hole “C” of the LOADING RACK should be aligned with the reference hole of the R LOADING Ass’y to make the teeth of the LOADING RACK is aligned as shown in Fig.
18 3. Mechanical Mode (Operate without a cassette tape) a. Remove the FRONT LOADING Mechanism from the DECK Mechanism. b. Cap the IR LED and pull the FL RACK. This has the same effect with cassette loading to the deck. c. If the S/T POLE BASE is loaded, Play mode starts auto- matically.
19 ADJUSTMENT OF THE TP AE TRANSPOR TING SECTION. Generally, tape transporting section has been precisely adjusted in the factory and does not require the ordinary readjustment.
20 Generally the TAPE TRANSPORTING SYSTEM has been precisely adjusted in the factory and does not ordinarily require readjustment. But when noise and tape damage take place and part assemblies that compose the TAPE TRANSPORTING SYSTEM are replaced, check and read - just the TAPE TRANSPORTING SYSTEM.
21 ADJUSTMENT OF THE TP AE TRANSPOR TING SECTION. (CONTINUED) A. Adjustment of the S/T GUIDE ROLLER a. Check the Playing back with a T-120 TAPE. b. Make sure that excessive tape wrinkle does not occure at eatch S.T GUIDE ROLLER. c. If tape wrinkle is observed at the S/T GUIDE ROLLER, turn the guide roller screw until there is not tape wrinkle.
22 F . PLA YBACK PHASE ADJUSTMENT(Fig. 5.6) PHASE GENERATOR(PG) SHIFTER determine the VIDEO HEAD SWITCHING POINT when the TAPE is played back. If an adjustment of the PHASE GENERATOR(PG) SHIFTER is no.
23 H. Adjustment of the wave form of DRUM Entrance / Exit (Fig. 5.8) a. Connect the PT01 on the MAIN CIRCUIT BOARD with a PATH ADJ.FIXTURE. b. Play back an ALIGNMENT TAPE(DN-2 : MONO- SCOPE signal) c. Connect the S/W PULSE TEST PIN on the PATH ADJ. FIXTURE with a CHANNEL-1 SCOPE PROBE.
24 K. Adjustment of the AUDIO AZIMUTH a. Connect the AUDIO output JACK with an AUDIO LEVEL METER. b. Play back the ALIGNMENT TAPE(DN-2:MONO- SCOPE 7KHz Signal).
25 1. Exploded view of DECK Ass’y ( T op V iew) EXPLODED VIEW AND P AR TS LIST fig1-2 fig6-1.
26 2. Exploded view of DECK Ass’y ( Bottom V iew) EXPLODED VIEW AND P AR TS LIST (CONTINUED) fig6-1 fig6-2.
27 3. Exploded view of FL Ass’y EXPLODED VIEW AND P AR TS LIST (CONTINUED) fig6-3.
28 D0040 D0020 D0050 D0010 D0060 D0070 D0040 fig6-4 EXPLODED VIEW AND P AR TS LIST (CONTINUED) 4. Exploded view Drum T otal Ass’y.
29 LOC PART S/N PART NAME PART DISCRIPTION NTSC M1OOO 97PCO273D- DECK TOTAL AS DRN-8329-CAR(2HD SP/EP HI-FI,DLC) M1OOO 97PC0195D- DECK TOTAL AS DRN-8230(2HD SP/EP MONO,DLC) M1OOO 97PC0194D- DECK TOTAL.
30 EXPLODED VIEW AND P AR TS LIST (CONTINUED) Parts List of Deck T otal Ass’y (continud) LOC PART S/N PART NAME PART DISCRIPTION DRUM AS D0010 DRUM AS REFERRING TO LIST OF DRUM PRICE ASS’Y D0030 97SA324400 DRUM M/T AS E20XL-25 D0030 97SA327100 DRUM M/T AS DMVDMTO4M D0040 7001260711 SCREW MACHINE PAN 2.
31 EXPLODED VIEW AND P AR TS LIST (CONTINUED) Parts List of Deck T otal Ass’y LOC PART S/N PART NAME PART DISCRIPTION DECK AS A1700 97S2709600 RACK FL PBT(DY4410GF) NATURAL A1800 97S2708200 GEAR CAM.
32 6. Parts List of Drum Price Ass’y LOC PART S/N PART NAME PART DISCRIPTION NTSC AD001 97PA268901 DRUM PRICE AS CYN-T210(2HD SP/EP NON) AD001 97PA277471 DRUM PRICE AS CYN-T212(2HD SP/EP DLC) AD001 .
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.
An important point after buying a device Daewoo VCR MECHANISM UNIT (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Daewoo VCR MECHANISM UNIT yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Daewoo VCR MECHANISM UNIT - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Daewoo VCR MECHANISM UNIT you will learn all the available features of the product, as well as information on its operation. The information that you get Daewoo VCR MECHANISM UNIT will certainly help you make a decision on the purchase.
If you already are a holder of Daewoo VCR MECHANISM UNIT, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Daewoo VCR MECHANISM UNIT.
However, one of the most important roles played by the user manual is to help in solving problems with Daewoo VCR MECHANISM UNIT. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Daewoo VCR MECHANISM UNIT along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
