Daewoo K3050MECHA User Manual

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S/M No. : K3050MECHA

Service Manual

VCR MECHANISM UNIT

(K50 / K30-MECHA DECK)

DAEWOO ELECTRONICS CO., LTD.

http : //svc.dwe .co.kr

March. 2000

CONTENTS

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

2. ASSEMBLY DIAGRAM & MAJOR P ARTS CHECK..............................................................5

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

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

5. ADJUSTMENT OF T APE TRANSPORTING SYSTEM.......................................................27

6. EXPLODED VIEW AND P ARTS LIST....................................................................................37

1) K30-MECHA DECK follows the VHS standard.

2) K30-MECHA DECK uses three motors (DRUM MOTOR, CAPST AN MOTOR and L/C MOTOR)

3) K30-MECHA DECK uses L/C MOTOR to drive FRONT LOADING.

4) K30-MECHA DECK recognizes each mode by using a 4-BIT MODE signal. This 4-BIT MODE signal is generated by the CAM SWITCH which is driven by the L/C MOTOR.

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.

K30-MECHA DECK is seperated from the Main PCB. When assembling, it is connected by B-B TYPE

CONNECTOR. The CAPST ANMOTOR and DRUMOUTPUT of K30-MECHA DECK and the MAIN PCB DECK are directly connected without using cable.

1.DESCRIPTION OF THE MECHANISM

1-1 CHARACTERISTIC OF THE K30-DECK MECHANISM

1-2-1) WIRE DIAGRAM

1-2 WIRE DIAGRAM

1-2-2) CONNECTOR PIN ARRANGEMENT

CN-1 (2 HEAD MONO)

1 SP-L 2 COMMON 3 SP-R 4 GND

CN-1 (4 HEAD MONO)

1 SP-L 2 COMMON 3 SP-R 4 GND 5 EP-R 6 COMMON 7 EP-L

CN-C

1 L/C MT (+) 2 L/C MT (–) 3 GND 4 CAM D 5 CAM C 6 CAM B 7 CAM A

CN-1 (4 HEAD 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 CAPST AN F/R 3 CAPST AN FG 4 CTL-REF 5 CTL 6 I-LIMIT 7

CAPST AN M/T 12V/18V 8 GND 9 IC GND

10 NON CONT ACT

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 and 18V for HIREW model.

ASSEMBLY DIAGRAM & MAJOR PARTS CHECK

2-1. ASSEMBLING DIAGRAM

2-1-1) ASSEMBLING DIAGRAM OF DECK ASS'Y

A. TOP VIEW

)

(

1. FE HEAD

2. S SLANT POLE ASS'Y

3. TENSION BAND ASS'Y

4. REEL T ABLE

5. MAIN BASE ASS'Y

6. RECORD SAFETY LEVER

7. S SUB BRAKE ASS'Y

8. S MAIN BRAKE ASS'Y

9. IDLER PLA TE TOTAL ASS'Y

10. T MAIN BRAKE ASS'Y

11. T-SUB BRAKE ASS'Y

12. RELA Y LEVER

13. CAPST AN MOTOR

14. PINCH LEVER TOT AL ASS'Y

15. L/C BRKT TOT AL ASS'Y

16. CAM GEAR

17. A/C HEAD TOT AL ASS'Y

18. T SLANT POLE ASS'Y

19. DRUM TOT AL ASS'Y

B. BOTTOM VIEW

1. CAPST AN MOTOR

2. F/L RACK

3. CONNECT PLA TE

4. REEL BEL T

5. REEL GEAR TOT AL ASS'Y

6. RECORD SAFETY LEVER

7. L LOADING ASS'Y

8. R LOADING ASS'Y

9. DRUM TOT AL ASS'Y

10. LOADING RACK ASS'Y

2-1-2) P AR TS LOCATION OF FRONT LOADING ASS'Y

A. TOP VIEW

B. FRONT VIEW

2-2-1) 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.

2-2-2) CLEANING AND LUBRICA TION

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 CAPST AN 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 T ABLE CAPST AN FLYWHEEL/PULLEY REEL PULLEY

B. LUBRICA TION

S REEL POST T REEL T ABLE POST REEL GEAR POST

After cleaning these parts with alcohol, lubricate these with one or two drops of oil.

2-2. PERIODIC MAINTENANCE AND SERVICE SCHEDULE

2-2-3) SERVICE SCHEDULE FOR THE MAJOR PAR TS

The following parts should receive periodic service, according to the recommended intervals.

: Check and Replace if necessary . : Replace

PERIODIC SERVICE (TIME)

NAME

1000 2000 3000 4000 5000

DRUM TOT AL ASS'Y ¡¡¡¡¡

CAPST AN MOTOR ¡ L/C BRKT TOT AL ASS'Y REEL BEL T IDLER PLA TE TOTAL ASS'Y REEL T ABLE 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 TOT AL ASS'Y

Note: Even though the unit is not used frequently , cleaning, lubrication and replacement of the belt should be undertaken every 2 years.

2-3-1) LIST OF JIGS AND TOOLS

2-3. JIGS AND TOOLS

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/SCAM: SP MONOSCOPE 6KHz

SP COLORBAR 1KHz (LP MONOSCOPE)

CLEANING T APE

DHC-602V

CHECKING OF THE T APE

(DAEWOO) TRANSPORTING SYSTEM

CASSETTE T APE KT-300NV

MEASUREMENT OF

(KOKUSAI) KT-300RV REEL TORQUE

VHS SPINDLE

TSH-V4

MEASUREMENT OF

HEIGHT GAUGE REEL HEIGHT

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 DENT AL MIRROR

CHECKING OF THE T APE TRANSPORTING SYSTEM

+DRIVER

-1 ASSEMBLY,

8 HEX DRIVER

-2 DISASSEMBLY AND ADJUSTMENT

ADJUSTMENT DR IVER

-3

2-3-2) SKETCH OF JIGS AND TOOLS

ALIGNMENT TAPE

8-1

8-2

8-3

CLEANING TAPE

VHS SPINDLE

HEIGHT GAUGE

3. DISASSEMBLY AND REPLACEMENT

3-1. FRONT LOADING ASS'Y REMOVAL (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.

AF002

Fig.3-1 FRONT LOADING ASS'Y SEPARATION

3-2. DISASSEMBL Y OF THE FRONT LOADING ASS'Y (See Fig. 3-2~3-6)

a. Remove one screw holding 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)

Remove one screw holding the PRISM LINK R and remove the PRISM LINK

R from the F/L BRACKET R.

(Fig. 3-3)

d. Remove one screw holding the PRISM LINK L. (Fig. 3-4) e. Release the hook B by pushing it in the direction of the arrow and remove the 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 PLA TE.(Fig. 3-5) h. Remove the RELEASE SPRING between the RELEASE LEVER and the SAFETY LEVER R. (Fig. 3-5)

TOP PLATE

INSERT POINTS

NOTE:

Reassemble the FRONT LOADING MECHANISM in the reverse order. Confirm that the two bosses on the left side of the CASSETTE HOLDER AS are inserted into the groove on the left side of the top plate. Insert the two bosses on the right side of the cassette holder into the groove of the F/L BRAKCET R (Fig. 3-6)

3-3. DRUM ASS'Y/EARTH BRACKET ASS'Y REMOVAL (See Fig.3-7)

a. Remove three screws fixing the DRUM

TOT AL 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 TOT AL ASSEMBLY, confirm that the TAPEruns smooth and refer to chapter 5 "ADJUSTMENT OF THE T APE TRANSPORTING SYSTEM".

When assembling the EARTH BRACKET ASSEMBLY, a 3x12 screw should be used and at the other parts, 3x10 screws should be used.

3-4. REEL BEL T , LOADING RACK ASS'Y , LOADING ASS'Y , S/T SLANT POLE ASS'Y

REMOVAL (See Fig.3-8)

a. T urn over the DECK MECHANISMand remove

the REEL BEL T

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

3-5. A/C HEAD ASS'Y REMOVAL (See Fig.3-10)

a. Remove one nut hex

from the A/C HEAD

POST

of the MAINBASE.

b. Remove the A/C HEAD ASSEMBLY

from

the MAINBASE.

c. Remove the A/C HEAD SPRING

from the

A/C HEAD ASSEMBLY

NOTE:

After reassembling, adjust the T APE TRANSPORTING SYSTEM refering to chapter 5 "ADJUSTMENT OF THE T APE TRANSPORTING SYSTEM".

After adjusting the T APE TRANSPORTING SYSTEM, spread the A/C HEAD/NUT, AZIMUTH SCREW ,and TIL T SCREWwith LOCKING PAINT.

3-6. L/C BRACKET ASS'Y REMOVAL (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. PINCH LEVER

TOT AL ASS'Y REMOVAL (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 of MAINBASE

and remove the

PINCH LEVER TOT AL ASSEMBLY

CAUTION:

Take care not to coat GREASE, OIL or other substances on the surface of the PINCH ROLLER

3-8. CAM GEAR, RELA Y LEVER AND F/L RACK REMOVAL (See Fig.3-11)

a. Remove the CAM GEAR

from the MAINBASE. (Fig.3-11)

b. Remove the RELA Y LEVER

from the MAINBASE. (Fig. 3-11)

c. Remove the F/L RACK

from the MAINBASE by pulling it in the direction of the arrow .

NOTE:

When reassembling, refer to Fig. 3-12, 13.

3-9. S/T MAIN & SUB BRAKE ASS'Y REMOVAL (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

3-10. TENSION BAND ASS'Y REMOVAL (See Fig.3-15, 3-16)

a. Remove the TENSION SPRING

from the MAINBASE . (Fig.3-15) b. T urn the DECK MECHANISMover. (Fig.3-16) c. After separating the tab of hook 'A', remove the TENSION BAND ASSEMBLY

. (Fig.3-16)

NOTE:

After assembling the TENSION BAND ASSEMBL Yon 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

3-11. CAPST AN MOTOR REMOVAL (See Fig.3-18)

3-12. IDLER PLA TE TOTAL ASS'Y & S/T REEL T ABLE REMOVAL (See Fig.3-19)

Remove 3 screws fixing the CAPSTAN MOTOR and separate the CAPST AN MOTOR.

a. Remove one POLY WASHER

from the

REEL GEAR POST

and remove the IDLER

PLA TE TOTAL ASSEMBLY

from the MAIN

BASE.

b. Remove the S/T REEL T ABLES

and two

POLY SLIDERS

from the DECK

MECHANISM.

CAUTION:

When disassembling or assembling the

IDLER PLA TE TOTAL ASSEMBLY ,take care not to bend it.

3-13. FE HEAD REMOVAL (See Fig.3-20)

3-14. REEL GEAR TOT AL ASS'Y & CONNECT PLATE REMOVAL (Fig.3-21)

Remove one screw

fixing the FE HEAD and

remove the FE HEAD

from the MAINBASE.

a. T urn over the DECK MECHANISMand remove

one POLY WASHER

from the REEL GEAR

POST

b. After separating tab 'B' of the MAINBASE,

remove the REEL GEAR TOTAL ASSEMBLY

from the MAINBASE.

c. Remove the CONNECT PLA TE

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 PLA TE.

After assembling or disassembling the REEL GEAR TOT AL ASSEMBLY ,take care not to getOIL,

GREASE or other substances on the REEL BEL T.

Take care not to deform or break tab "B". Check the assembly state & the operating state of the REEL GEAR TOT AL ASSEMBLYbefor

assembling.

After reassembling, check the FF, REW, PLAY and REVIEW MODES and the existence of noise

when operating the MODES.

MECHANICAL ADJUSTMENT

4-1. MECHANICAL ADJUSTMENT (See Fig.4-1~4-5)

When operational problems occur or the mechanism is reassembled, be sure to confirm the following INSTRUCTIONS. a. Make sure that the DATUM HOLE of the CAM GEAR is aligned with the DA TUM HOLEin the

MAINBASE in the EJECT mode, as shown in Fig.4-1.

b. Make sure that part "A" of the RELA Y 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

c. When reassembling the L/C BRACKET TOTAL ASSEMBLYon the MAINBASE, 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 TOT AL ASSEMBLY is positioned at point "B" of the CAM

GEAR, as shown in Fig.4-4.

TRIANGLE MARKS MUST MEET EACH OTHER

Make sure that the triangular mark "A" on the L LOADING ASSEMBLY is aligned with 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.

4-2. BACK TENSION MEASUREMENT (See Fig.4-6~4-7)

a. Confirm that the position of the TENSION POLE is correctly POSITIONED. Refer to the "4-4 TENSION

POLE POSITION ADJUSTMENT ".

b. Play back a T-120 TAPEat its center position without assemblying F/L ASSEMBLYand wait until the

T APErunning is stabilized (about 5~10 seconds).

c. Bring the TENTELOMETER into contact with the T APE(Fig.4-6) and measure the BACK TENSION. The

measuring 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. (T o

decrease the result, choose hook A. Otherwise, choose hook B).

Confirm that all of the three probes of the TENSION METERare in contact with the TAPE.

During this process, don't touch any other parts of the MECHANISM (i.e, MAINBASE).

t is recommended that this measurement be repeated at least three times for an accurate r eading.

4-3. MECHANICAL MODE (OPERA TING THE VCRWITHOUT A CASSETTE T APE)

a. Remove the FRONT LOADING MECHANISM from the DECK MECHANISM. b. Pull the F/L RACK. c. The S/T POLE BASES are loaded and PLA Y BACKMODEstarts. d. T urn off the power when the MECHANISMis in the desired position.

a. MAKE MECHANICAL MODE be PLA Y 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. TENSION POLE POSITION ADJUSTMENT

5.ADJUSTMENT OF TAPE TRANSPORTING SYSTEM

Generally the T APE TRANSPOR TING 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 T APE TRANSPORTING SYSTEM are replaced, check and readjust the TAPE TRANSPORTING SYSTEM. Refer to the following FLOW CHAR T in order to adjust the TAPE TRANSPORTING SYSTEM.

S/T GUIDE ROLLER HEIGHT

ADJUSTMENT

• DRUM TOTAL ASS'Y

• A/C HEAD ASS'Y

• PINCH LEVER TOTAL ASS'Y

S/T GUIDE POST FLANGE

A/C HEAD AS ADJUSTMENT (TILT ADJUSTMENT)

CLEANING

AUDIO AZIMUTH ADJUSTMENT

A/C HEAD ADJUSTMENT

X-POSITION ADJUSTMENT

PLAYBACK PHASE ADJUSTMENT

LINEARITY ADJUSTMENT

DRUM ENTRANCE/EXIT ENVELOPE FINE TUNING

¡‚REVIEW ¤A PLAY¡„CHANGING OPERATION CHECK

AUDIO AZIMUTH ADJUSTMENT

AUDIO OUTPUT CHECK (A/C HEAD TILT & HEIGHT ADJUSTMENT)

X-POSITION ADJUSTMENT

TRACKING

• S POLE BASE ASS'Y

• T POLE BASE ASS'Y

• TENSION LEVER ASS'Y

Table.1 ADJUSTMENT FLOW DIAGRAM OF THE TAPE TRANSPORTING SYSTEM

Fig. 5-1 THE SCHEMATIC DIAGRAM OF TAPE TRANSPORTING SYSTEM

When the parts as shown in Fig. 5-1 are replaced, the TAPE TRANSPORTING SYSTEMhas 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 T APEwrinkle is observed at the S/T GUIDE ROLLER, adjust them so that no wrinkle occurs.

B. ADJUSTMENT OF THE A/C HEAD ASS'Y

(TILT ADJUSTMENT)

a. Play back a T-120 Tape and check the running condition of

the T APEat the lower flanges of the T GUIDE POST ASS'Y ¤æin Fig. 5-1.

b. Adjust the A/C HEAD TIL T SCREWuntill the TAPEruns

stable as shown in Fig. 5-2

C. ADJUSTMENT OF THE AUDIO AZIMUTH

(See Fig.5-3)

a. Play back the ALIGNMENT CASSETTE T APE

(NTSC: DN2 (SP, 7KHz), PAL: DP2 (SP, 6KHz)) b. Observe audio signals on an OSCILLOSCOPE. c. T urn the A/C 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 T APEand 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 obtained.

( )

Fig. 5-2 A/C HEAD ASS'Y ADJUSTMENT

(TILT ADJUSTMENT)

Fig. 5-3 A/C HEAD ASS'Y

GAP

Fig. 5-4 A/C HEAD ASS'Y ADJUSTMENT (HEIGHT ADJUSTMENT)

TURN THE A/C HEAD TILT SCREW TO THE DIRECTION OF CW

TURN THE A/C HEAD TILT SCREW TO THE DIRECTION OF CCW

E. X-POSITION ADJUSTMENT

a. Connect the path adjustment fixture to PT01 of the MAIN CIRCUIT BOARD. b. Play back the ALIGNMENT T APE (COLOR BAR ALIGNMENT). c. Connect channel-1 scope probe to S/W PULSE TEST PIN of P ATH ADJ, FIXTURE. d. Connect channel-2 scope probe to ENVELOPE TEST PIN of P ATH ADJ, FIXTURE. e. T urn the VR CONTROLto 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 OSCILLOSCOPE

ADJUSTMENT

VR CONTROL PATH ADJ. FIXTURE

ADJUST BOSS MAIN BASE.

Fig. 5-5 X-POSITION ADJUSTMENT

F. PLAYBACK PHASE ADJUSTMENT (See Fig. 5-6)

Phase generator (PG) shifter decides the VIDEO HEAD switching point when a T APE is played back. In case the Phase generator (PG) shifter isn't correctly tuned, HEAD switching noise or vertical jitter may occur . a. Connect the P ATH ADJ. FIXTUREto PT01 of the MAIN CIRCUIT BOARD. b. Play the ALIGNMENT T APE (COLOR BAR SIGNAL OR MONOSCOPE SIGNAL) c. Connect the channel-1 scope probe to the S/W PULSE TEST PIN of the P ATH ADJ. FIXTURE. d. Connect the channel-2 scope probe(1V/div .) to the VIDEO OUTof the MAIN CIRCUIT BOARD. e. Play back the ALIGNMENT T APE. 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 MAIN CIRCUIT BOARD

MEASURING EQUIPMENT OSCILLOSCOPE

ADJUSTMENT VR595 (PG SHIFTER) MAIN CIRCUIT BOARD

Fig. 5-6 PLAYBACK PHASE ADJUSTMENT

G. LINEARITY ADJUSTMENT

a. Connect the P ATH ADJ. FIXTUREto PT01 of the MAIN CIRCUIT BOARD. b. Play back the ALIGNMENT T APE (COLOR BAR SIGNAL). c. Connect the channel-1 scope probe to the S/W PULSE TEST PIN of the P ATH ADJ. FIXTURE. d. Connect the channel-2 scope probe to the ENVELOPE TEST PIN of the P ATH ADJ. FIXTURE. e. Adjust the VR CONTROL of the P ATH ADJ. FIXTUREfor 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 ADJ. FIXTURE

S/T GUIDE ROLLER TAPE TRANSPORTING SYSTEM

Fig. 5-7 LINEARITY ADJUSTMENT

H. DRUM ENTRANCE /EXIT (See Fig. 5-8, 5-9)

a. Connect the P ATH ADJ. FIXTURE to PT01 the MAIN CIRCUIT BOARD. b. Play back the ALIGNMENT TAPE (COLOR BAR SIGNAL). c. Connect the channel-1 scope probe to the S/W PULSE TEST PIN of the P ATH ADJ. FIXTURE. d. Connect the channel-2 scope probe to the ENVELOPE TEST PIN of the P ATH ADJ. FIXTURE. e. When turning the VR CONTROL of the PATH ADJ. FIXTURE clockwise or counter -clockwisw, affirm

that the envelope thickness changes uniformly .

f. If the envelope is not uniform and regular, adjust 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

Fig. 5-8 FINE TUNING OF THE ENVELOPE AT THE

DRUM ENTRANCE/EXIT (I)

Fig.5-9 FINE TUNING OF THE ENVELOPE AT THE

DRUM ENTRANCE/EXIT (II)

DRUM ENTRANCE

DRUM EXIT

I. REVIEW

¤¤AA

PLA Y (See Fig. 5-10)

a. Connect the P ATH ADJ. FIXTURE to PT01 of the MAIN CIRCUIT BOARD. b. Play back the ALIGNMENT TAPE (SP, COLOR BAR SIGNAL). c. Connect the channel-1 scope probe to the S/W PULSE TEST PIN of the P ATH ADJ. FIXTURE. d. Connect the channel-2 scope probe to the ENVELOPE TEST PIN of the P ATH ADJ. FIXTURE. e. Adjust the VR CONTROL of the PATH ADJ. FIXTURE to the center to obtain the maximum envelope

signal of the ALIGNMENT TAPE.

f. After operating the VCR in the REVIEW MODE about 15 secs, change the REVIEW MODE to the

PLA Y BACKMODE.

g. Change operation mode from REVIEW MODE to PLA Y 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 sur e 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 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 TRANSPORTIN SYSTEM

Fig. 5-10 CHECK OF TRANSITIONAL OPERATION (FROM REVIEW WAVEFORM TO PLAY WAVEFORM)

WAVEFORM

PICTURE

J. AUDIO OUTPUT (A/C HEAD TILT & HEIGHT ADJUSTMENT)

a. Connect the OSCILLOSCOPE to the AUDIO OUTPUT JACK. b. Play back the ALIGNMENT T APE(NTSC: DN1 (SP, 1KHz), PAL: DP1 (SP, 1KHz)). c. Check the AUDIO OUTPUT SIGNAL is -9~-3dBm. d. If the requirement "c" is not satisfied, adjust the A/C HEAD TILT SCREW and 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 T APE (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 OSCILLOSCOPE

TEST POINTS AUDIO OUTPUT AUDIO OUTPUT JACK

MEASURING EQUIPMENT OSCILLOSCOPE

L. X-POSITION (See Fig. 5-11)

a. Connect the P ATH ADJ. FIXTUREto PT01 of the MAIN CIRCUIT BOARD. b. Play back the ALIGNMENT T APE(COLOR SIGNAL BAR). c. Connect the channel-1 scope probe to the S/W PULSE TEST PIN of the of the P ATH ADJ. FIXTURE. d. Connect the channel-2 scope probe to the ENVELOPE TEST PIN of the P ATH ADJ. FIXTURE. e. Adjust the VR CONTROL to the center 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 BOSSof 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

ENVELOPE TEST PIN PATH ADJ. FIXTURE

MEASURING EQUIPMENT OSCILLOSCOPE

ADJUSTMENT

VR CONTROL PATH ADJ. FIXTURE

ADJUST BOSS MAIN BASE.

Fig. 5-11 X-POSITION ADJUSTMENT

6. EXPLODED VIEW AND PARTS LIST

6-1. EXPLODED VIEW OF DECK ASS'Y (TOP VIEW)

6-2. EXPLODED VIEW OF DECK ASS'Y (BOTTOM VIEW)

6-3. EXPLODED VIEW OF F/L ASS'Y

D0040

D0050

D0010

D0020

D0040

D0060

D0070

D0080

D0090

6-4-1. PARTS LIST OF DECK TOTAL ASS'Y

NTSC

M1OOO 97PC0245D- DECK TOTAL AS DRN-9200(2HD SP/EP MONO NON) K50 M1OOO 97PC0246D- DECK TOTAL AS DRN-9201(2HD SP/EP MONO NON, HEAD CLNER) K50

M1OOO 97PC0269D- DECK TOTAL AS DRN-9220(2HD SP/EP MONO DLC) K50 M1OOO 97PC0266D- DECK TOTAL AS DRN-9400(4HD MONO NON) K50 M1OOO 97PC0247D- DECK TOTAL AS DRN-9401(4HD MONO NON, HEAD CLNER) K50

M1OOO 97PC0270D- DECK TOTAL AS DRN-9420(4HD NOMO DLC) K50 M1OOO 97PC0268D- DECK TOTAL AS DRN-9429A(4HD MONO DLC,HEAD CLNER)

TIMELAPSE

M1OOO 97PC0349D- DECK TOTAL AS DRN-9409A(4HD MONO NON,HEAD CLNER) TIMELAPSE M1OOO 97PC0265D- DECK TOTAL AS DRN-9600(4HD HI-FI NON) K50

M1OOO 97PC0248D- DECK TOTAL AS DRN-9601(4HD HI-FI NON,HEAD CLNER) K50 M1OOO 97PC0271D- DECK TOTAL AS DRN-9620(4HD HI-FI DLC) K50

PAL

M1OOO 97PC0332D- DECK TOTAL AS DRP-9100(2HD SP MONO NON ) K30 M1OOO 97PC0333D- DECK TOTAL AS DRP-9120(2HD SP MONO DLC) K30

M1OOO 97PC0334D- DECK TOTAL AS DRP-9121(2HD SP MONO DLC, HEAD CLNER) K30 M1OOO 97PC0335D- DECK TOTAL AS DRP-9200(2HD SP/LP MONO NON) K30 M1OOO 97PC0336D- DECK TOTAL AS DRP-9201(2HD SP/LP NON,HEAD CLNER) K30

M1OOO 97PC0337D- DECK TOTAL AS DRP-9220(2HD SP/LP MONO DLC) K30 M1OOO 97PC0338D- DECK TOTAL 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) K30

M1OOO 97PC0344D- DECK TOTAL AS DRP-9621(4HD HI-FI DLC,HEAD CLNER) K30 M1OOO 97PC0348D- DECK TOTAL AS DRP-9429A(4HD MONO DLC,HEAD CLNER)

TIMELAPSE

PAL

M1OOO 97PC0317D- DECK TOTAL AS DRP-9200N(2HD SP/LP MONO NON) K50 M1OOO 97PC0323D- DECK TOTAL AS DRP-9201N(2HD SP/LP MONO NON,HEAD CLNER) K50

M1OOO 97PC0314D- DECK TOTAL AS DRP-9220N(2HD SP/LP MONO DLC) K50 M1OOO 97PC0320D- DECK TOTAL AS DRP-9221N(2HD SP/LP MONO DLC,HEAD CLNER) K50 M1OOO 97PC0316D- DECK TOTAL AS DRP-9400N(4HD MONO NON) K50

M1OOO 97PC0322D- DECK TOTAL AS DRP-9401N(4HD MONO NON,HEAD CLNER) K50 M1OOO 97PC0313D- DECK TOTAL AS DRP-9420N(4HD MONO DLC) K50 M1OOO 97PC0319D- DECK TOTAL AS DRP-9421N(4HD MONO DLC,HEAD CLNER) K50 M1OOO 97PC0315D- DECK TOTAL AS DRP-9600N(4HD HI-FI NON) K50

M1OOO 97PC0321D- DECK TOTAL AS DRP-9601N(4HD HI-FI NON,HEAD CLNER) K50 M1OOO 97PC0312D- DECK TOTAL AS DRP-9620N(4HD HI-FI DLC) K50

M1OOO 97PC0318D- DECK TOTAL AS DRP-9621N(4HD HI-FI DLC,HEAD CLNER) K50

LOC. STOCK NO. PART NAME DESCRIPTION

SECAM

97PC0345D- DECK TOTAL AS DRS-9400(4HD MONO NON) K30 97PC0346D- DECK TOTAL AS DRS-9420(4HD MONO DLC) K30 97PC0347D- DECK TOTAL 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

6-4-2. PARTS LIST OF DRUM PRICE ASS’Y

NTSC

AD001 97PA277471 DRUM PRICE AS CYN-T212(2HD SP/EP DLC) AD001 97PA264841 DRUM PRICE AS CYN-T213(2HD SP/EP BLK) AD001 97PA269001 DRUM PRICE AS CYN-T410(4HD MONO NON) AD001 97PA277571 DRUM PRICE AS CYN-T412(4HD MONO DLC) AD001 97PA264941 DRUM PRICE AS CYN-T413(4HD MONO BLK) AD001 97PA269101 DRUM PRICE AS CYN-T610(4HD HI-FI NON)

AD001 97PA277671 DRUM PRICE AS CYN-T612(4HD HI-FI DLC) AD001 97PA265041 DRUM PRICE AS CYN-T613(4HD HI-FI BLK) AD001 97PA272071 DRUM PRICE AS CYN-T312(4HD 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 DLC) AD001 97PA272601 DRUM PRICE AS CYP-KT610(4HD HI-FI NON)

SECAM

AD001 97PA266171 DRUM PRICE AS CYS-KT412(4HD MONO DLC) AD001 97PA270201 DRUM PRICE AS CYS-KT410(4HD MONO NON) AD001 97PA272971 DRUM PRICE AS CYS-KT612(4HD HI-FI DLC)

AD001 97PA272801 DRUM PRICE AS CYS-KT610(4HD HI-FI NON)

LOC. STOCK NO. PART NAME DESCRIPTION

DRUM AS

D0010 DRUM AS

REFERRING TO LIST OF DRUM PRICE ASS Y

D0030 97SA324400 DRUM M/T AS E20XL-25 K30,K50 D0030 97SA327100 DRUM M/T AS DMVDMTO4M K30,K50

D0040 7001260711 SCREW MACHINE PAN 2.6X7 MFZN K30,K50 D0050 97SA320400 EARTH GROUND AS T-DRUM K30,K50

D0060 97S2303600 HOLDER MAIN POM(KEPITAL F20) K30,K50 D0070 97S2303700 HOLDER CAP(A) POM(2CH) K30,K50 D0070 97S2303800 HOLDER CAP(B) POM(4CH) K30,K50 D0070 97S2303900 HOLDER CAP(C) POM(6CH) K30,K50 D0080 97S1401700 BASE DRUM

FM-M(NON-MACHINING, ADC) K30,K50

D0090 7051300611 SCREW MACHINE PAN 3X6 SW MFZN K30,K50

DECK AS

AM001 DECK AS

REFERRING TO LIST OF DECK TOTAL ASS Y

A0100 97SA309700 MAIN BASE AS K-MECHA K30,K50 A0200 97S0901400 PLATE CONNECT SECC T1.0 K30,K50 A0300 97S2701800 RACK F/L PBT (KP213G30) NATURAL K30,K50

A0400 97SA310900 S SLANT POLE AS G,FM,K-MECHA K30,K50 A0500 97SA311000 T SLANT POLE AS G,FM,K-MECHA 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 D1.2 K30,K50

A1300 97SA311200 AC HEAD AS

HVMZA1900AK(LG,RECORD) K30,K50

A1400 7391300211 NUT HEX 6N-1-5 MFZN K30,K50 A1500 97S2604100 LEVER RELAY ZDC-2 K30,K50

A1600 97S2701400 GEAR CAM DELIN 500 NATURAL K30,K50 A1700 97SA310700 PINCH LEVER TOT AS K-MECHA K30,K50

A1800 97S3117300 WASHER POLY D3.6XD8XT0.5 K30,K50 A1900 97SA310400 L/C BRKT TOT AS K-MECHAK K30,K50

B1900 97SA414100 L/C BRKT AS K-MECHA K30,K50 B1910 97SA409200 L/C MOTOR AS K-MECHA K30,K50

B1920 97P6538222 PCB L/C MOTOR PHENOL T1.6 K30,K50 B1930 97P6271500 CONN WAFER (ANGLE) 00-8283-0711-00000 K30,K50

B1940 5SSF1DKM10 SW CAM MMS00320ZMBO K30,K50 B1960 97S2901500 WHEEL WORM DERLIN 100 NATURAL K30,K50

6-4-3.PARTS LIST OF DRUM TOTAL ASS’Y

A2000 7274300611 SCREW TAPPTITE TT3 RND 3X6 MFZN K30,K50 A2100 97SA311620 IDLER PLATE AS K30-MECHA(HI-REW) K30

A2100 97SA311600 IDLER PLATE AS K50-MECHA(NORMAL) K50 A2200 97S3108200 POLYWASHER D2.6XD6.0XT0.5 K30,K50

A2300 97S2901600 TABLE REEL F20 BLACK K30,K50 A2400 97S3903600 POLY SLIDER D3.1XD6XT0.5 K30,K50 A2500 97SA310800 TENSION BAND AS K-MECHA K30,K50

A2600 97S3003500 SPG TENSION SWPB D0.4 K30,K50 A2700 97SA309300 S SUB BRAKE AS K-MECHA K30,K50

A2800 97SA309400 T SUB BRAKE AS K-MECHA K30,K50 A2900 97SA309120 MAIN BRAKE AS K30-MECHA(HI-REW) K30 A2900 97SA309110 MAIN BRAKE AS K50-MECHA(NORMAL) K50

A3100 97S8012900 HEAD FE HVFHF0004AK(LG) K30,K50 A3200 97S3102100 SCREW TAPPTITE TT2 BIN-P 2.6X10 MFZN K30,K50

A3300 97SA309020 REEL GEAR TOT AS K30-MECHA(HI-REW) K30 A3300 97SA309000 REEL GEAR TOT AS K50-MECHA(NORMAL) K50 A3400 97S3108200 POLYWASHER D2.6XD6.0XT0.5 K30,K50

A3500 97S5500400 BELT REEL CR68 K30,K50 A3600 97S2625500 LEVER REC SAFETY F20-03 SKY BLUE K30,K50

A3700 2291129004 OIL LUBRICANT OA-305P K30,K50 A3800 2291131304 GREASE DELUXE 5221G(NAM-YOUNG K30,K50 AD002 7274301011 SCREW TAPPTITE

TT3 RND 3X10 MFZN(SCREW FOR ASSEMLING DRUM) 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 97SA311400 CST HOLDER AS K-MECHA K30,K50 B5200 97SA410100 HOLDER AS K-MECHA K30,K50 B5230 97S2605400 LEVER RELEASE DURACON M90-02 NATURAL K30,K50 B5240 97S3004700 SPG RELEASE SUS304WPB D0.23 K30,K50 B5250 97S2605500 LEVER SAFETY R SUS304CSP T0.5 K30,K50 B5260 97S3101600 WASHER POLY D6.5XD3.6XT0.5 K30,K50 A5300 97SA311500 LOADING LEVER AS K-MECHA K30,K50

B5330 97S3004800 SPG FL LEVER SWPB D1.0 K30,K50 A5400 97S2602210 LINK PRISM L PMMA(HI-855M)NATURAL K30,K50

A5500 97S2602110 LINK PRISM R PMMA(HI-855M)NATURAL K30,K50 A5700 97S1800400 OPENER DOOR DURACON M90-02 BLACK K30,K50

A5800 7278260611 SCREW TAPPTITE TT3 WAS 2.6X6 MFZN K30,K50 A5900 7278300611 SCREW TAPPTITE TT3 WAS 3X6 MFZN K30,K50

HEAD CLEANER AS

AC001 97SA381500 HEAD CLEANER AS FM,K-MECHA K30,K50

LOC. STOCK NO. PART NAME DESCRIPTION

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

Daewoo K3050MECHA User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual