Daewoo T5-MECHA, T5-Deck Mecha Service Manual

1. DESCRIPTION OF THE MECHANISM ....................................................2

2. ASSEMBLY DIAGRAM AND MAJOR PARTS CHECK.........................4

3. DIASSEMBLY AND REPLACEMENT .....................................................10

4. MECHANICAL ADJUSTMENT .................................................................16

5. ADJUSTMENT OF THE TAPE TRANSPORTING SYSTEM.................19

6. EXPLODED VIEW........................................................................................25

7. PARTS LIST....................................................................................................29

CONTENTS

T5 - DECK MECHANISM

(For EUROPE)

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Caution

: In this Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information,please refer to PPL(Parts Price List) in Service Information Center (http://svc.dwe.co.kr).

1) T5-MECHA follows the VHS and the NTSC standard.

2) T5-MECHA uses 3 MOTORS (DRUM MOTOR, CAPSTAN MOTOR, L/C MOTOR).

3) T5-MECHA uses L/C Motor to drive FRONT LOADING.

4) T5-MECHA uses 4-BIT MODE signal to recognize each MODE. This 4-BIT MODE signal is generated from the cam switch driven by the L/C MOTOR.

5) T5-MECHA has 7MODES (EJECT/INITIAL/REV/IDLE/PLAY,STOP,SLOW/BRAKE/FF&REW) operation.

6) T5-MECHA deduce the MODE changing time by adopting the full loading system which maintains the tape winding the drum circumference.

7) T5-MECHA can be separated from the main pcb, and be assembled with B-B type connector . This B-B type connectioning means that CAPSTAN MOTOR, LC MOTOR, AC HEAD, FE HEAD, DRUM are connected directly without using connector cable.

1. DESCRIPTION OF THE MECHANISM

1-1 Characteristic of T5-DECK MECHANISM

1-2 Wire Diagram

1-3 Connector Pin Arrangement

2-1 Assembly Diagram

2-1-1) DECK Assembly Diagram

A. UPPER VIEW

2. ASSEMBLY DIAGRAM AND MAJOR PARTS CHECK

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 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 24 CABLE FFC

B. BOTTOM VIEW

19 LOADING RACK 20 L LOADING ASS’Y 21 R LOADING ASS’Y 22 CONNECT PLATE 23 REEL BELT 24 CABLE FFC

2-1-2) FRONT LOADING Assembly Diagram

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1 FL BRKT L 2 TOP PLATE 3 SAFETY LEVER L 4 LOADING LEVER AS

5 CST HOLDER AS 6 DOOR OPENER 7 SAFETY LEVER R 8 FL BRKT R

2-2-1) Periodic Maintenance and Service

Schedule

A. In order to effectively maintain the excellent performance

and fully utilize the features of this apperatus and to lengthen the life of mechanism and tapes, we strongly urge you to perform the periodic maintenance and inspection as described below.

• Following should be done after the substition of parts of deck or correction of deck failure.

B. Cleaning of the DRUM TOTAL ASS`Y

- Slowly turnning DRUM TOTAL ASS`Y, wipe the drum surface with clean cloth soaked in alchol. (Don’t connect the power when turnning the UPPER DRUM)

- Don’t wipe the Head-Tip vertically with cleaning cloths.

C. Tape transporting section cleaning

- Clean the tape transporting section with clean cloth soaked in alchol.

D. Driving section cleaning

- Clean the driving section with clean cloth soaked in alchol.

E. Everyday inspection

- Perform the maintenance and inspection periodically

according to the number of use.

- Refer to the table 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 shoule be cleaned after every 500 hours of use.

• TENSION POLE • S SLANT POLE

• AC HEAD/AE HEAD • GUIDE POST

• VIDEOHEAD / DRUM • T GUIDE POST

• FE HEAD • T SLANT POLE

• CAPSTASN SHAFT • S GUIDE ROLLER

• T GUIDE ROLLER • PINCH ROLLER

- Because the above part contact with video tape, they tend to be stained with dusts and foreign substances which make the bad effect on the picture and sometimes lead to the tape damage.

- Be sure to check the remained alchol during cleaning evaporated thoroughly before using a tape.

b. Cleaning of the driving section

• REEL TABLE

• CAPSTAN FLYWHEEL/PULLEY

• REEL PULLEY

B. Lubrication

• REEL GEAR POST : After the cleaning the parts with alchol, lubricate them with one or twol drops of ool

• S/T REEL TABLE POST : After the cleaning the parts with alchol, lubricate them with grease.

2-2 Periodic Maintenance and Service Schedule

2-2-3) Service Sechedule for each parts

Following parts should be checked according to the recommanded intervals

: Check and replace if necessary. : Replace

Period Service (Hours) PART 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 BRAKE ASS’Y TENSION BAND ASS’Y PINCH ROLLER ASS’Y AC HEAD ASS’Y FE HEAD REEL BRKT TOTAL ASS’Y

NOTE:

Independant of the above service shedule, Cleaning and lubrication and replacement of the belt sould be undertaken every 2 years.

2-3-1) List of Jigs and Tools

FIG.

NO ITEMS MODEL

N O

REMARKS

NTSC: SP MONOSCOPE 7KHz CHECKING OF THE

1 ALIGNMENT T APE SP COLOR BAR 1KHz ! T APE TRANSPORTING

(EP MONOSCOPE) SECTION

CLEANING T APE

DHC-602V @

CHECKING OF THE T APE

(DAEWOO) TRANSPORTING SECTION

CASSETTE T APE TORQUE KT -300NV

MEASUREMENT OF THE

METER(KOKUSAI) KT-300R V REEL TORQUE

VHS SPINDLE

TSH-V4 $

MEASUREMENT OF

HEIGHT GAUGE REEL T ABLE HEIGHT

TENTELO METER

T2-H7-UM %

MEASUREMENT OF

(TENTELO) THE BACK TENSION

FAN TYPE MEASUREMENT OF THE

6 TENSION METER

3KG ^ PRESSING FORCE FOR

THE PINCH ROLLER

7 DENT AL MIRROR &

CHECKING OF THE T APE TRANSPORTING SECTION

DRIVER *-1 ASSEMBLY,

8 DISASSEMBLY

ADJUSTMENT DR IVER *-2 AND ADJUSTMENT

2-3 Jig and Tools

2-3-2) A Skectch of Jigs and Tools

ALIGNMENT TAPE

CLEANING TAPE

VHS SPINDLE HEIGHT GAUGE

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