Samsung VP-D351, VP-D352, VP-D353 Service Manual

DIGITAL VIDEO CAMCORDER

Chassis : Dragon (Delta III)

BASIC : VP-D353

Application Models

: VP-D353(I)/VP-D352(I)/VP-D351(I)

Application Area

XEF, XEU, XEG, XET, XEV, XEC, XSA, CDM, XST,

XEH, XEP, XEE, EAP, EUR, XEN, HACO, TAW, TIT, SEO, XSS, SED, XSH, XSG, FES, XTL, CHN, ZAM, SMR, XFA, ITN, KNT, XSE, FPT, RAD, AJU, XEO, COL, STS, AND, UMG, AFR,

SERVICE

 Shooting Design DVC Leader

 Use Built-in Flash Memory

 Multi Memory Card Slot

 Direct Print System : PictBridge ™

 Power Nite Pix

 High quality MPEG4

 Still image Interpolation

 Real Wide mode (16:9)

Manual

DIGITAL VIDEO CAMCORDER Merit & Character regarding Product

SERVICE MANUAL

VP-D353(I)/D352(I)/D351(I)

ELECTRONICS

Printed in Korea

AD82-00101A

This Service Manual is a property of Samsung Electronics Co .,Ltd. Any unauthorized use of Manual can be punished under applicable

International and/or domestic law.

CONTENTS

1. Precautions 1-1 ~ 1-2

2. Product Specification 2-1 ~ 2-4

3. Alignment and Adjustments 3-1 ~ 3-16

4. Disassembly and Reassembly 4-1 ~ 4-16

5. Exploded View and Parts List 5-1 ~ 5-20

6. Electrical Parts List 6-1 ~ 6-12

7. Block Diagram 7-1 ~ 7-4

8. Wiring Diagram 8-1 ~ 8-2

9. PCB Diagrams 9-1 ~ 9-10

10. Schematic Diagrams 10-1 ~ 10-22

11. Operating Instructions and Installation 11-1 ~ 11-10

12. Trouble Shooting 12-1 ~ 12-8

13. Circuit Operating Descriptions 13-1 ~ 13-12

14. Reference Information 14-1 ~ 14-26

Samsung Electronics 1-1

1. Precautions

1. Be sure that all of the built-in protective devices are replaced. Restore any missing protective shields.

2. When reinstalling the chassis and its assemblies, be sure to restore all protective devices, including : control knobs and compartment covers.

3. Make sure that there are no cabinet openings through which people--particularly children

--might insert fingers and contact dangerous voltages. Such openings include the spacing between the picture tube and the cabinet mask, excessively wide cabinet ventilation slots, and improperly fitted back covers.

If the measured resistance is less than 1.0 megohm or greater than 5.2 megohms, an abnormality exists that must be corrected before the unit is returned to the customer.

4. Leakage Current Hot Check (See Fig. 1-1) : Warning : Do not use an isolation transformer during this test. Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL Publication UL1410, 59.7).

5. With the unit completely reassembled, plug the AC line cord directly the power outlet. With the unit’s AC switch first in the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit, etc.) and all exposed metal parts, including : antennas, handle brackets, metal cabinets, screwheads and control shafts. The current measured should not exceed

0.5 milliamp. Reverse the power-plug prongs in the AC outlet and repeat the test.

6. X-ray Limits : The picture tube is designed to prohibit X-ray emissions. To ensure continued X-ray protection, replace the picture tube only with one that is the same type as the original.

Fig. 1-1 AC Leakage Test

7. Antenna Cold Check : With the unit’s AC plug disconnected from the AC source, connect an electrical jumper across the two AC prongs. Connect one lead of the ohmmeter to an AC prong. Connect the other lead to the coaxial connector.

8. High Voltage Limit : High voltage must be measured each time servicing is done on the B+, horizontal deflection or high voltage circuits.

Heed the high voltage limits. These include the X-ray protection Specifications Label, and the Product Safety and X-ray Warning Note on the service data schematic.

9. Some semiconductor (“solid state”) devices are easily damaged by static electricity. Such components are called Electrostatically Sensitive Devices (ESDs); examples include integrated circuits and some field-effect transistors. The following techniques will reduce the occurrence of component damage caused by static electricity.

10. Immediately before handling any semiconductor

components or assemblies, drain the electrostatic charge from your body by touching a known earth ground. Alternatively, wear a discharging Wrist-strap device. (Be sure to remove it prior to applying power--this is an electric shock precaution.)

DEVICE UNDER

TEST

(READING SHOULD

NOT BE ABOVE

0.5mA)

LEAKAGE CURRENT

TESTER

EARTH

GROUND

TEST ALL

EXPOSED METER

SURFACES

ALSO TEST WITH

PLUG REVERSED

(USING AC ADAPTER

PLUG AS REQUIRED)

2-WIRE CORD

Precautions

1-2 Samsung Electronics

11. High voltage is maintained within specified limits by close-tolerance, safety-related components and adjustments. If the high voltage exceeds the specified limits, check each of the special components.

12. Design Alteration Warning : Never alter or add to the mechanical or electrical design of this unit. Example : Do not add auxiliary audio or video connectors. Such alterations might create a safety hazard. Also, any design changes or additions will void the manufacturer’s warranty.

13. Hot Chassis Warning : Some TV receiver chassis are electrically connected directly to one conductor of the AC power cord. If an isolation transformer is not used, these units may be safely serviced only if the AC power plug is inserted so that the chassis is connected to the ground side of the AC source.

To confirm that the AC power plug is inserted correctly, do the following : Using an AC voltmeter, measure the voltage between the chassis and a known earth ground. If the reading is greater than 1.0V, remove the AC power plug, reverse its polarity and reinsert. Re-measure the voltage between the chassis and ground.

14. Some TV chassis are designed to operate with 85 volts AC between chassis and ground, regardless of the AC plug polarity. These units can be safely serviced only if an isolation transformer inserted between the receiver and the power source.

15. Never defeat any of the B+ voltage interlocks. Do not apply AC power to the unit (or any of its assemblies) unless all solid-state heat sinks are correctly installed.

16. Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead; always remove the instrument’s ground lead last.

17. Observe the original lead dress, especially near the following areas : Antenna wiring, sharp edges, and especially the AC and high voltage power supplies. Always inspect for pinched, outof-place, or frayed wiring. Do not change the spacing between components and the printed circuit board. Check the AC power cord for damage. Make sure that leads and components do not touch thermally hot parts.

18. Picture Tube Implosion Warning : The picture tube in this receiver employs “integral implosion” protection. To ensure continued implosion protection, make sure that the replacement picture tube is the same as the original.

19. Do not remove, install or handle the picture tube without first putting on shatterproof goggles equipped with side shields. Never handle the picture tube by its neck. Some “in-line” picture tubes are equipped with a permanently attached deflection yoke; do not try to remove such “permanently attached” yokes from the picture tube.

20. Product Safety Notice : Some electrical and mechanical parts have special safety-related characteristics which might not be obvious from visual inspection. These safety features and the protection they give might be lost if the replacement component differs from the original--even if the replacement is rated for higher voltage, wattage, etc.

Components that are critical for safety are indicated in the circuit diagram by shading, ( or ). Use replacement components that have the same ratings, especially for flame resistance and dielectric strength specifications. Areplacement part that does not have the same safety characteristics as the original might create shock, fire or other hazards.

Samsung Electronics

2-1

2. Product Specifications

Video signal Video recording system Audio recording system Usable cassette Tape speed Tape recording time FF/REW time Image device Lens Filter diameter

Size/dot number LCD monitor Method Viewfinder

Video output S-video output Audio output DV input/output

USB output External mic

Power source Power source type Power consumption (Recording) Operating temperature Storage temperature External dimension Weight Internal MIC

System

LCD monitor/Viewfinder

Connectors

General

PAL 2 rotary heads, Helical scanning system Rotary heads, PCM system Digital video tape (6.35mm width): Mini DV cassette SP: approx. 18.83mm/s LP: approx. 12.57mm/s SP: 60 minutes (when using DVM 60), LP: 90 minutes (when using DVM 60) Approx. 150 sec. (using DVM60 tape) CCD (Charge Coupled Device) (800K Pixels) F1.6 20x(Optical), 900x(Digital) Electronic zoom lens Ø30

2.36inchs 112k TFT LCD B/W LCD (VP-D351(i)/D352(i)/D353(i) only), Colour LCD (VP-D354(I)/D355(i) )

1Vp-p (75Ω terminated) Y: 1Vp-p, 75Ω, C: 0. 286Vp-p, 75Ω

-7.5dBs (600Ω terminated) VP-D351i/D352i/D353i/D354i/D355i : 4pin special in/out connector, VP-D351/D352/D353/D354/D355 : out only Mini-B type connector Ø3.5 stereo

DC 8.4V, Lithium Ion Battery Pack 7.4V Lithium Ion Battery Pack, Power supply (100V~240V) 50/60Hz

4.3W(LCD), 4.0W(Viewfinder)

0˚~40˚C (32˚F~104˚F)

-20˚C ~ 60˚C (-4˚F ~ 140˚F) Length 92mm, Height 117.5mm, Width 64mm 410g (Except for Lithium Ion Battery Pack and tape) Omni-directional stereo microphone

Operation Description

2-1 Product Specification

Product Specification

2-2

Samsung Electronics

2-2 Chassis Product Specification

Acces sory Comment

-/--/ -

S-Cable / Scart Jack

Opt./Opt.Opt./Opt.

Carrying Case / Tape

T.B.DT.B.D

Battery Pack

O/XO / --/ -

Remocon / Accessory Shoe

OO-

Analog In

O/O/OO/O/O

Multi Lang./ Batt. Check/Instant On

O/GUI/OO/GUI/OO/OSD/O

Beep Sound / Displ ay / PB Zoom

O/O/O/-O/O/O/-

AV / S.Jack / Ext.Mic / H.phone

O/O/OO / O / O-/ -/ O

Light / Night Captur e / LSS

T.B.DT.B.D

JPEG Multi Display

T.B.DT.B.D

Continuous Shot / Im age Mix

M4/VG/30fM4/VG/30f

MPEG Clip Form at / size / F.Ratio

XGAXGA

JPEG Recording Si ze to Memory

----

Memory Card

16M32M--

Builtin Memory

Multi CardMulti CardM.S. Slot-

Memory Card Slot

MJ/QQ/15fMJ/QQ/15f

Web camera (For./size/F.rate)

M4/VG/30fM4/VG/30f

USB Stream. (For./size/F.Rate)

USB2.0USB2.0

USB

In/OutIn/Out

IEEE1394

DISDIS

Image Stabili zer

12/16b PCM12/16b PCM

Audio

BWColorBW

Viewfinder

2.5", 112K2.5", 112K

LCD

680K680K

CCD

20x / 900x20x / 900x

Zoom/Digita l Zoom

520 line520 line

Resolution

MiniDVMiniDV

Format

VM-F730D355SC-D353D351

Model cod e

NTSC (

Rsx

)NTSC(America)

Region

Acces sory Comment

Opt./Opt.

S-Cable / Scart Jack

Opt./Opt.

Carrying Case / Tape

T.B.D

Battery Pack

O/XX/XX/X

Remocon / Accessory Shoe

Analog In

O/O/O

Multi Lang./ Batt. Check/Instant On

O/GUI/OO/OSD/OO/OSD/O

Beep Sound / Displ ay / PB Zoom

O/O/O/-

AV / S.Jack / Ext.Mic / H.phone

O/O/O-/-/O-/-/O

Light / Night Captur e / LSS

T.B.DNoNo

JPEG Multi Display

T.B.DNoNo

Continuous Shot / Im age Mix

M4/VG/25fNoNo

MPEG Clip Form at / size / F.Ratio

XGANoNo

JPEG Recording Si ze to Memory

---

Memory Card

64M

---

Builtin Memory

Multi Card

M.S.NoNo

Memory Card Slot

MJ/QQ/12.5fNo

Web camera (For./size/F.rate)

M4/VG/25fNo

USB Stream. (For./size/F.Rate)

USB2.0No

USB

Out

IEEE1394

DIS

Image Stabili zer

12/16b PCM

Audio

Color

Viewfinder

2.5", 112K

LCD

800K

CCD

20x / 900x

Zoom/Digita l Zoom

520 line

Resolution

MiniDV

Format

D355VP-D353D352D351

Model cod e

PAL (Europ e)

Region

O O O O O

O O O O

O O O O O O O O

O O O O O O

O O O O

O O

OO O O O O O O

O O O O O

O O O O

O O O O O

O O O O O O O

O O O O O O

OO O

O O

O O O

O O

O O O O

O O

Product Specification

2-3

Samsung Electronics

2-3 Accessories Supplied with Camcorder

(VP-D353(i), VP-D354(i), VP-D355(i) only)

(VP-D352(i), VP-D353(i), VP-D354(i), VP-D355(i) only)

(VP-D353(i), VP-D354(i), VP-D355(i) only)

Basic

Accessories Description Part No Remark Description Part No RemarkAccessories

1. Lithium Ion Battery Pack

AD43-00136A

AD43-00146A

Optional

2. AC Power Adapter (AA-E8 TYPE)

AD44-00090A

4. Audio/Video Cable

AD68-00839G

AD39-00001A

5. Instruction Book

6. Lithium Battery (CR2025)

AD43-10130H

7. Remote Control

AD59-00085A

AD97-07354B

8. USB Cable

AD39-00073A

AD46-00082A

AD46-00061A

9.Software CD

10. Lens Cover

11. Lens Cover strap

AD72-00049A

13. Memory Stick

1109-001221

12. S-Video Cable

AC39-42001Z

3. AC

Cord

AD39-00078A

14. Scart Adapter

Model standard

of VP-D353i/XEU

Model standard

of VP-D353i/XEU

Model standard

of VP-D353i/XEU

Model standard

of VP-D353i/XEU

Model standard

of VP-D353i/XEU

Model standard

of VP-D353i/XEU

Model standard

of VP-D353i/XEU

Model standard

of VP-D353i/XEU

Model standard

of VP-D353i/XEU

Model standard

of VP-D353i/XEU

Model standard

of VP-D353i/XEU

Model standard

of VP-D353i/XEU

Model standard

of VP-D353i/XEU

Model standard

of VP-D353i/XEU

Product Specification

2-4

Samsung Electronics

MEMO

Samsung Electronics

3-1

3. Alignment and Adjustment

3-1 VCR Adjustment

3-1-1 Adjustment Preparation

1) Before you start

Œ Use the buttons on the CAMCORDER when adjusting VCR. ´ When changing the adjustment item, please press the “EASY-Q” and “DISPLAY” buttons on the

CAMCORDER.

ˇ The adjustment value can be changed by moving the “MENU Selector” Left or Right. ¨ Press the “MENU Selector” to store each adjustment into EEPROM. ˆ The OSD shows “OK” after finishing each adjustment step. Ø In order to exit the adjustment mode, disconnect the power source.

2) Function of each buttons on the Set Key

Buttons Description

MENU Selector push (Confirm) Stores changed value in the adjustment and auto adjustment mode. MENU Selector Right (Data Down)

Changes data in the adjustment state.

MENU Selector Left (Data Up) EASY-Q (Mode Up)

Changes mode.

DISPLAY (Mode Down)

3) How to get into the VCR adjust mode

[STEP 1]

Œ Connect the Power source. ´ Set the Power Switch to “PLAYER” position and Mode Switch to “TAPE” position.

Fig. 3-1

MENU Button

EASY Q Button

Start/Stop Button

MENU Selector

DISPLAY Button

Mode switch

PB ZOOM

Power switch

STOP Button

USB

MIC

3-2

Alignment and Adjustments

Samsung Electronics

[STEP 2]

Œ Press and hold the "STOP" and "PB ZOOM" buttons on the video camera at the same time for more than

5 seconds.

´ When monitor OSD appears as shown Fig. 3-2, the adjustment mode has been activated successfully. ˇ Move the “MENU Selector” to highlight VCR ADJ and push the “MENU Selector”. ¨ Monitor OSD shows Fig. 3-3.

Then VCR adjustment mode has been activated successfully.

[STEP 3]

In order to complete the adjustment the power must be reset. This can be done by disconnecting and reconnecting the power source.

Fig. 3-2

Indicates current adjustment item

Adjustment value

For Engineering Mode

Stored value

Fig. 3-3

3-1-2 VCR Adjustment

Œ Get into VCR ADJUST mode. ´ Move to the VCR ADJUST address “6IF”. ˇ Play standard tape, and “Head Switching Position” will be adjusted automatically (within 5 Seconds).

Mode

(Address)

Name Value Description

61F SWP Position 8C Head Switching Position Adjust

Note : This is the only electronic adjustment for the VCR.

Other addresses have already been assigned data during the manufacturing process. We don’t need any adjustment for those addresses.

Alignment and Adjustments

3-3

Samsung Electronics

3-2 Camera Adjustment

Note : How to adjust the camera system.

1) EEPROM stores confirmed adjustment value of each adjustment step.

2) DSP (Digital Signal Process : ICM01-Main PCB) digitalizes the camera signal.

3) When changing IC505-Main PCB of EEPROM, readjust Main PCB. While changing LCD PCB and CVF PCB- always readjust each part.

Since EEPROM stores confirmed adjustment value of each adjustment step, readjusting must be performed in order

to store the changed data.

4) Adjust the following items after changing LENS Ass’y.

Œ Lens Zoom Track ´ Auto HALL ˇ Auto IRIS

5) Adjust the following items after changing EEPROM and Camera Main PCB.

Œ Lens Zoom Track ´ Zoom VR Center ˇ Auto HALL ¨ Auto IRIS ˆ Auto White Balance (indoor) Ø Auto White Balance (outdoor)

3-2-1 Adjustment Preparation

1) Before you start

Œ Use the buttons on the CAMCORDER when adjusting Camera. ´ When changing the adjustment item, please press the “EASY-Q” and “DISPLAY” buttons on the

CAMCORDER.

2) Function of each buttons on the Sst Key

Buttons Description

MENU Selector push (Confirm) Stores changed value in the adjustment and auto adjustment mode. MENU Selector Right (Data Down)

Changes data in the adjustment state.

MENU Selector Left (Data Up) EASY-Q (Mode Up)

Changes mode.

DISPLAY (Mode Down)

3-4

Alignment and Adjustments

Samsung Electronics

5) How to set up the camera adjustment mode

[STEP 1]

Œ Connect the Power source. ´ Set the Power Switch to “CAM” position and Mode Switch to “TAPE” position.

[STEP 2]

Œ Press and hold the "STOP" and "PB ZOOM" buttons on the video camera at the same time for more than

5 seconds.

´ When monitor OSD appears as shown Fig. 3-5, the adjustment mode has been activated successfully. ˇ Move the “MENU Selector” to highlight CAM ADJ and push the “MENU Selector”. ¨ Monitor OSD shows Fig. 3-6.

Then Camera adjustment mode has been activated successfully.

[STEP 3]

In order to complete the adjustment the power must be reset. This can be done by disconnecting and reconnecting the power source.

Fig. 3-5

Fig. 3-4

MENU Button

EASY Q Button

Start/Stop Button

MENU Selector

DISPLAY Button

Mode switch

PB ZOOM

Power switch

STOP Button

USB

MIC

Alignment and Adjustments

3-5

Samsung Electronics

3-2-2 Camera Adjustment

Note : "XX XX" indicate the previous preset value and adjusted value.

Press the “MENU Selector” (Confirm) to store the adjusted value.

Adjusted values Stored values

Fig. 3-6

1) EEPROM Data Initialize

Caution : These adjustments must be done when installing a new EPROM (IC105) or Main PCB.

Œ Press the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons until CAMADJ displays “0DF XX XX”. ´ Use the “MENU Selector” (Data Up/Down) until the display data for EVR is “A0”. ˇ Press the “MENU Selector” (Confirm). ¨ The OSD shows “OK” after finishing the initalize.

2) Lens Zoom Track

Caution : For whole zoom range, it shall be in focus.

The location of a focus lens is moving depending on the location of Zoom Lens. During adjusting, micom measures the focus location from a near distance to a long.

Œ Camera is set to E-E mode. ´ Focus chart photo. ˇ Center the camera about 3m from a focus chart which, should be placed on a flat surfaced white or gray wall. ¨ Connect the video output terminal to a TV. ˆ Press the “EASY-Q” (Mode Up)/”DISPLAY” (Mode Down) buttons until CAMADJ displays “0DE XX XX”. Ø Press the “MENU Selector” to begin adjustment.

The camera must be kept still when adjusting the zoom and focus lens. If you don’t have any chart, you can use the object which has a lot of vertical line. The OSD shows “OK” after finishing the adjustment. (The word “OK” is displayed for only a fraction of a second.)

Fig. 3-7

3M ± 1cm

(Be sure to maintain the distance)

CCDLENS

3-6

Alignment and Adjustments

Samsung Electronics

3) Zoom VR Center

Œ Connect a video output terminal to a TV. ´ Press the “EASY”(Mode Up)/”DISPLAY”(Mode Down) buttons so that OSD shows “0D6 XX XX”. ˇ Press the “MENU Selector” (Confirm). ¨ Then Micom finds out Zoom VR center position.

Store Zoom VR center value in OB7.

4) Auto HALL

Œ Connect a video output terminal to a TV. ´ Press the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that OSD shows "0CD XX XX". ˇ Press the “MENU Selector” (Confirm). ¨ Then micom finds out max. Hall value with an iris opened and min. Hall value with an iris closed.

Store max. and min. value of Hall in OAD and OAC respectively.

ˆ The OSD shows “OK” after finishing the adjustment.

(The word “OK” is displayed for only a fraction of a second.)

5) Auto IRIS Level

Œ Connect a video output terminal to a wave form monitor and a TV. ´ Press the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that OSD shows "0CE XX XX". ˇ Press the “MENU Selector” (Confirm). ¨ Then micom finds out max. Hall value with an iris opened and min.

Hall value with an iris closed. Store max. and min. value of in 00BC, 00BD and 00BB respectively.

ˆ The OSD shows “OK” after finishing the adjustment.

(The word “OK” is displayed for only a fraction of a second.)

6) Auto White Balance (indoor)

Œ Camera mode & 3100˚ K gray scale chart. ´ Connect a video output terminal to a vectorscope and a TV. ˇ Press the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that OSD shows "0D4 XX XX". ¨ Ensure that camera picks up image 40µs on 3100˚K gray scale chart precisely and the illumination is 1500~2000

Lux.

ˆ Press the “MENU Selector” (Confirm) to ensure that white spot on a vectorscope is moving in the middle of

screen.

Ø The OSD shows “OK” after finishing the adjustment.

(The word “OK” is displayed for only a fraction of a second.)

7) Auto White Balance (outdoor)

Œ Camera mode & 5100˚ K gray scale chart. ´ Connect a video output terminal to a vectorscope and a TV. ˇ Press the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that OSD shows "0D5 XX XX". ¨ Ensure that camera picks up image 40 µs on 5100 gray scale chart (3100 gray scale chart + C16 filter) precisely

and the illumination is 1500~2000 Lux.

ˆ Press the “MENU Selector” (Confirm) to ensure that white spot on a vectorscope is moving in the middle of

screen.

Ø The OSD shows “OK” after finishing the adjustment.

(The word “OK” is displayed for only a fraction of a second.)

Alignment and Adjustments

3-7

Samsung Electronics

3-3 Deck Adjustment

3-3-1 Operation Without Housing Assembly

1) Remove the Housing Ass’y from the Deck Ass’y.

2) Connect the Mechanical Chassis to the recorder circuit to supply voltage.

3) Set to Unload mode.

4) Press the S/W Push (Keep ON status)to start loading, and push the PLAY Key. (Cover the Top/End sensor with black tape, because they do not operate.)

Note : For the removal of the Housing Ass’y refer to

4-2-2 (page 4-7).

Connceted the Recorder Circuit

SWITCH C-IN

Fig. 3-8

3-3-2 Setting Mechanical Mode (Without Recorder Circuit)

1) Set the power-supply output to approx. 3V~5V.

2) Choose the polarity (depending on whether loading or unloading).

3) Supply the voltage to the Motor Loading, and set to the desired mode.

Fig. 3-9

DC POWER SUPPLY

A B

AB Movement of Chassis

+- Unloading

-+ Loading

3-8

Alignment and Adjustments

Samsung Electronics

3-3-3 Maintenance

Carry out the following periodic maintenance checks in order to fully exercise all functions, operations and tape. After repairing, service the set as follows:

1) Cleaning of Drum Assembly

Œ Gently apply lens tissue soaked in ethyl alcohol to the Drum assembly.

Clean the Upper Drum assembly while rotating it slowly counterclockwise(by hand).

Note : Do not rotate the motor by power or rotate the Upper Drum assembly clockwise.

Also, the Head tip will be damaged if the lens tissue is moved in a perpendicular direction. Be sure to follow these instructions when cleaning the Drum Ass’y

2) Cleaning of Tape Path

Œ In EJECT mode, clean the tape path system(from Pole Tension P1 through Pole Review P9, Pinch Roller and

Capstan Shaft) and the Lower Drum. Using the lens tissue soaked in ethyl alcohol.

Note : Make sure that no oil or grease adheres to the lens tissue.

Fig. 3-10

P2 P4 P3

P8 P6

P7 P9

PINCH ROLLER

Alignment and Adjustments

3-9

Samsung Electronics

3) Periodic Maintenance and Check List

When overhauling, refer to the following table.

2mm

OIL

◆ When lubrication bearings, be sure to keep the oil free of dust. (Oil contaminated with dust might cause the bearings to wear out or seize.)

◆ A “drop”of oil is defined as the amount attached to the tip of a Ø 2mm stick as shown in Fig. 3-11.

Fig. 3-11

O : Cleaning ∆ : Oil ◆ : Confirmation

Tape path

system

D R

S Y S T E

- Never let oil get on to the tape path surface.

Maintenance checks

Hours of use (H)

Remark

500 1000 1500 2000 2500 3000 3500 4000 4500 5000

Cleaning of tape path O O O O O O O O O O

Cleaning and degaussing of drum ass’y

OOOOOOOOOO

Capstan Shaft ∆∆∆∆∆

Gear Capstan ∆∆∆∆∆

Gear Pully Shaft ∆∆∆∆∆

Belt Timing ◆◆◆◆◆

Motor Loading ◆◆◆◆◆

Abnormal Noise ◆◆◆◆◆◆◆◆◆

Back Tension ◆◆◆◆◆

Brake System ◆◆◆◆◆

PB, REV Torque Measurement

◆◆◆◆◆

Confirmation

Perform-

ance

3-10

Alignment and Adjustments

Samsung Electronics

3-3-4 Mechanical Check and Adjustment

3-3-4(a) Tension Regulator Adjustment

1) Disassembly

Œ For the removal of the Housing Ass’y refer to 4-2-2 (page 4-7).

2) Adjustment

Œ Set to PLAY mode (without cassette tape). ´ Check that the distance between external surface of Holder Loading and extenal diamater of Arm Tension is

1±0.5mm. (Fig. 3-12)

ˇ If necessary, proceed to step 4. ¨ If the Arm Tension Œ is located inside (or right) the position specified, adjust the Cap Adjust Œ toward

arrow “A”. (If it is located outside (or left), adjust toward arrow “B”.)

Note : Check if the Arm Tension can be moved toward arrow “C” in PB mode.

3) Reassembly

Œ For the removal of the Housing Ass’y refer to 4-2-2 (page 4-7).

Fig. 3-12

1 0.5

ARM TENSION Œ

CAP ADJUST ´

"B"

"A"

Alignment and Adjustments

3-11

Samsung Electronics

3-3-4(b) Back Tension Confirmation

1) Set up the cassette-torque tape.

2) Set to CAMERA mode, push the EDIT(+) KEY and check that the torque value of Reel S is 4±1g.cm.

3) If necessary, proceed to step 4.

4) If the Tension value is Low specified, moved to toward “a”. If the Tension value is High specified, moved to toward “b”.

Reference : After changed, insert Cassette torque tape and confirm torque value.

Fig. 3-14

REEL DISK S TABLE RESTING SURFACE

REEL DISK T TABLE RESTING SURFACE

CHASSIS MAIN

Fig. 3-13

3-3-4(c) PB/REV Torque check

1) Set up the cassette torque tape.

2) Set to CAMERA mode, Push the EDIT(+) button and check that the torque value of Reel T is 9.5±3.5g.cm.

3) Push the EDIT(-) button and check that the torque value of Reel S is 15±4g.cm.

4) If necessary, replace the defective Reel Disk S, T Ass’y.

3-3-4(d) Reel Table Height Check

1) Removal

Œ For the removal of the Housing Ass’y refer to 4-2-2 (page 4-7). ´ For the removal of the Idler Ass’y refer to 4-2-3 (page 4-8).

2) Check

Œ Using vernier calipers, check the following distances : From the upper surface of the Main Chassis to the

resting surfaces of Reel S, T table should each be 3.9±0.15mm.

3) Mounting

Œ For the removal of the Idler Ass’y refer to 4-2-3 (page 4-8). ´ For the removal of the Housing Ass’y refer to 4-2-2 (page 4-7).

3-12

Alignment and Adjustments

Samsung Electronics

3-3-5 Tape Path Adjustment

3-3-5(a) Preparation for Adjustment

Œ Clean the tape running surface (Poles, Drum, Capstan Shaft, Pinch Roller). ´ Observe the PB RF signal and Head Switching Pulse on an oscilloscope. ˇ Play back the alignment tape. ¨ Check that the waveform of the RF signal is flat at both inlet and outlet(A in Fig. 3-15).

If not flat (B or C in Fig. 3-15), do adjustments 3-3-5(b) through 3-3-5(d).

Fig. 3-16

INLET OUTLET

NORMAL

DEFECT AT INLET

DEFECT AT OUTLET

Fig. 3-15

Alignment and Adjustments

3-13

Samsung Electronics

3-3-5(b) Tracking adjustment

Œ Play Back the alignment tape. ´ Turn P3 to flatten the waveform at the inlet. ˇ Turn P7 to flatten the waveform at the outlet.

3-3-5(c) Take Up Path Adjustment

Œ Play back the alignment tape, and confirm that the tape is not twisted between the Guide Roller T and

Capstan. (Fig. 3-17)

´ Set to REV mode and observe the outlet waveform of PB RF signal. (Fig. 3-18) NOTE : If the outlet waveform is out-of-spec, replace the Arm Review or the Arm Pinch Ass’y,

and redo steps 1 and 2.

MOTOR CAPSTAN

Fig. 3-17

(DEFECTIVE) (CORRECT)

Fig. 3-18

3-14

Alignment and Adjustments

Samsung Electronics

3-3-5(d) Check After Adjustment

1) Tracking Check

Œ Playback the alignment tape. ´ Confirm that the minimum amplitude value(E min.)is 80% of the maximum value(E max.) or larger.

(Fig. 3-19)

ˇ Confirm that no large fluctuation occur on the waveform. (Fig. 3-20)

2) CUE and REV Check

Œ Playback the alignment tape, and set to REV mode.

Confirm that the waveform peaks have a uniform Pitch. (Fig. 3-21 A) If the track pitch is not uniform, do section 3-3-5(b) (Tracking adjustment).

´ Set to CUE mode.

Confirm that the waveform peaks still have a uniform pitch. (Fig. 3-21 B) If the track pitch is not uniform, do section 3-3-5(b) (Tracking Adjustment).

Emin Emax

Emax

Emin

80(%)

Fig. 3-19

1 8

Fig. 3-20

abc a

abc

Fig. 3-21

Alignment and Adjustments

3-15

Samsung Electronics

3) Rise Time Check

Œ Playback the alignment tape. ´ Set to playback mode, and confirm that the waveform of PB RF signal rises flat within 3 seconds.

Also confirm that the tape is not twisted or curled around the Pinch Roller. (Fig. 3-23)

ˇ Run the tape in CUE/REV and FF/REW modes, then playback.

Confirm the waveform of PB RF signal rises flat within 3 seconds. Also confirm that the tape is not twisted or curled around the Pinch Roller.

¨ Repeat steps 2. and 3.

4) Tape Path Check

Œ In CUE and REV modes, check that the tape is not curled around the P3, P7 upper flange and P9

upper/Lower flanges.

MOTOR CAPSTAN

Fig. 3-22

P1 P2 P3 P4 P6 P7 P9

FROM THE S REEL

TO THE T REEL

Fig. 3-23

3-16

Alignment and Adjustments

Samsung Electronics

MEMO

Samsung Electronics 4-1

4. Disassembly and Reassembly

4-1 Cabinet and PCB

4-1-1 Ass’y Zoom Removal

Œ REMOVE 3 SCREWS (M 1.7 X 4 BLK)

Fig. 4-1 Ass’y Zoom Removal

4-1-2 Ass’y Front Removal

Fig. 4-2 Ass’y Front Removal

Œ REMOVE 2 SCREWS (M1.7 X 4 BLK)

´ REMOVE 2 SCREWS (M1.7 X 4 BLK)

ˇ REMOVE 1 SCREW (M1.7 X 5 WHT)

Caution : Please indicate that the connector must be detached before separating the Front Assembly

4-2

Disassembly and Reassembly

Samsung Electronics

Fig. 4-4 Ass’y Left Removal

4-1-3 Ass’y Top Removal

Œ REMOVE 1 SCREW (M1.7 X 4 BLK)

´ REMOVE 1 SCREW (M1.7 X 5 WHT)

Fig. 4-3 Ass’y Top Removal

4-1-4 Ass’y Left Removal

Œ REMOVE 3 SCREWS (M1.7 X 4 BLK)

´ REMOVE 2 SCREWS (M1.7 X 4 BLK)

ˇ REMOVE 1 SCREW (M1.7 X 5 WHT)

Caution : Please indicate that the connectors must be detached before separating the Left Assembly

Disassembly and Reassembly

4-3Samsung Electronics

4-1-5 Ass’y LCD & EVF/CVF Removal

Œ REMOVE 3 SCREWS (T1.7 X 4 BLK)

´ REMOVE 1 SCREW (M1.7 X 5 WHT)

ˇ REMOVE 4 SCREWS (T2 X 5 BLK)

¨ REMOVE 2 SCREWS (M1.7 X 3 WHT)

Caution : Please indicate that there is a connector on the View-Finder that must be detached

Caution : Please indicate that this connector must be detached before separating the LCD Assembly

Fig. 4-5 Ass’y LCD & EVF/CVF Removal

4-1-6 Ass’y Rear Removal

Fig. 4-6 Ass’y Rear Removal

Œ REMOVE 4 SCREWS (M1.7 X 4 BLK)

Caution : The Rear Assembly is connected to the Main PCB. Pulling it to the left as indicated in the illustraton can cause the connector to break. This removal instruction should indicate that the Rear assembly should be pulled Forward first in order to disconnect it from the Main PCB. Then it can be pulled to the left to separate it from the Main PCB

4-4

Disassembly and Reassembly

Samsung Electronics

Fig. 4-8 Ass’y Right Removal

4-1-7 Ass’y Cover Housing Removal

Fig. 4-7 Ass’y Cover Housing Removal

Œ REMOVE 2 SCREWS (M1.4 X 3 BLK)

4-1-8 Ass’y Right Removal

Œ REMOVE 2 SCREWS (M1.7 X 4 BLK)

´ REMOVE 2 SCREWS (T1.7 X 4 BLK)

Disassembly and Reassembly

4-5Samsung Electronics

4-1-9 Ass’y Deck Removal

Fig. 4-9 Ass’y Deck Removal

Œ REMOVE 3 SCREWS (M1.7 X 2.5 BLK)

Caution : Please indicate that these connectors must be detached before separating the Deck Assembly from the MAIN PCB.

4-1-10 Ass’y Main PCB Removal

Fig. 4-10 Ass’y Main PCB Removal

Œ REMOVE 3 SCREWS (M1.7 X 2.5 BLK)

Caution : The Lens Assembly is connected to the Main PCB. Pulling it to the left as indicated in the illustration can cause the connector to break. This removal instruction should indicate that the Lens assembly should be pulled Forward first in order to disconnect it from the Main PCB. Then it can be pulled to the left to separate it from the Main PCB.

4-6

Disassembly and Reassembly

Samsung Electronics

4-2-1 How to Load and Unload (Setting the Mechanical Modes)

1) Set the power-supply output to approximately 3V~5V, and connect it to the Motor Loading(= Loading Motor).

2) Choose the polarity depending on whether loading or unloading. (See Table 4-1)

3) Supply the voltage to the Motor Loading(= Loading Motor).

Fig. 4-11 Loading and Unloading

Movement of Chassis

Unloading

+ Loading

DC POWER SUPPLY

A B

4-2 Deck

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