samsung SCD351-XAA, SCD351- XAO, SCD351- XAC, SCD351- XTC, SCD351- XAX Service Manual

...

DIGITAL VIDEO CAMCORDER

Chassis : Dragon (Delta III)

BASIC : SCD353

SCD353/XAA, XAO, XAC, XTC, XAX, RCL, XAP,

TWN, GEN, ZAM, SAM, AFS, XBG

SCD352/XAA, XAO, XAC, XTC, XAX, RCL, XAP,

TWN, GEN, ZAM, SAM, AFS, XBG

SCD351/XAA, XAO, XAC, XTC, XAX, RCL, XAP,

TWN, GEN, ZAM, SAM, AFS, XBG

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

1. Precautions

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

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).

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.

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

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.

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.

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

6. X-ray Limits : The picture tube is designed to prohibit X-ray

occurrence of component damage caused by static electricity.

emissions. To ensure continued X-ray protection, replace the picture tube only with one that is the same type as the original.

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

Samsung Electronics 1-1

Wrist-strap device. (Be sure to remove it prior to applying power--this is an electric shock precaution.)

Precautions

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.

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.

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.

1-2 Samsung Electronics

2. Product Specifications

2-1 Product Specification

Operation Description

System

LCD monitor/Viewfinder

Connectors

General

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 Built-in MIC

NTSC 2 rotary heads, Helical scanning system Rotary heads, PCM system Digital video tape (6.35mm width): Mini DV cassette SP: approx. 18.81mm/s LP: approx. 12.56mm/s SP: 60 minutes (when using DVM 60), LP: 90 minutes (when using DVM 60) Approx. 150 sec. (using DVM60 tape) CCD / 680K (Still Image : 48K) F1.4 20x(Optical), 900x(Digital) Electronic zoom lens Ø30

2.5inchs 112k TFT LCD B/W LCD

1Vp-p (751 terminated) Y: 1Vp-p, 751, C: 0. 286Vp-p, 751

-7.5dBs (6001 terminated) 4pin special in/out connector, 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

4.4W(LCD), 4.0W(Viewfinder)

0˚~40˚C (32˚F~104˚F)

-20˚C ~ 60˚C (-4˚F ~ 140˚F) Length 90mm, Height 110mm, Width 60mm 400g (Except for Lithium Ion Battery Pack and tape) Omni-directional stereo condenser microphone

Samsung Electronics

2-1

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 / Acces sory Shoe

OO-

Analog In

O/O/OO/O/O

Multi Lang./ Batt. Check/Instant On

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

Beep Sound / Display / 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 / Acces sory Shoe

Analog In

O/O/O

Multi Lang./ Batt. Check/Instant On

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

Beep Sound / Display / 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

2-2 Chassis Product Specification

2-2

Samsung Electronics

2-3 Accessories Supplied with Camcorder

(SCD354/ D355

only)

(SCD352/ D353/D354/ D355

only)

(SCD352/ D353/D354/ D355

only)

Basic

Accessories

Basic

Accessories

Basic

Accessories

Basic

Accessories

Basic

Accessories

Basic

Accessories

Basic

Accessories

Basic

Accessories

Basic

Accessories

Basic

Accessories

Basic

Accessories

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

AD68-00839B

AD39-00001A

5. Instruction Book

6. Lithium Battery (CR2025)

AD43-10130H

7. Remote Control

AD59-00085A

AD97-07354B

8. USB Cable

AD39-00073A

AD43-00128A

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

AD39-00076A

Product Specification

Samsung Electronics

2-3

3. Alignment and Adjustment

MENU Button

EASY Q Button

Start/Stop Button

MENU Selector

DISPLAY Button

Mode switch

PB ZOOM

Power switch

STOP Button

USB

MIC

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

Changes data in the adjustment state.

Changes mode.

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

Samsung Electronics

3-1

Alignment and Adjustments

Indicates current adjustment item

Adjustment value

For Engineering Mode

Stored value

[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

Fig. 3-3

3-1-2 VCR Adjustment

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.

(Address)

Mode

61F SWP Position 8C Head Switching Position Adjust

Name Value Description

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).

3-2

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)

Alignment and Adjustments

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

Changes data in the adjustment state.

Changes mode.

Samsung Electronics

3-3

Alignment and Adjustments

MENU Button

EASY Q Button

Start/Stop Button

MENU Selector

DISPLAY Button

Mode switch

PB ZOOM

Power switch

STOP Button

USB

MIC

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.

3-4

Fig. 3-4

Fig. 3-5

Samsung Electronics

Alignment and Adjustments

Adjusted values Stored values

3M ± 1cm

(Be sure to maintain the distance)

CCDLENS

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.

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.)

Samsung Electronics

Fig. 3-7

3-5

Alignment and Adjustments

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.)

3-6

Samsung Electronics

3-3 Deck Adjustment

Connceted the Recorder Circuit

SWITCH C-IN

DC POWER SUPPLY

A B

Alignment and Adjustments

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).

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.

A B Movement of Chassis

+ - Unloading

- + Loading

Samsung Electronics

Fig. 3-9

3-7

Alignment and Adjustments

P2 P4 P3

P8 P6

P7 P9

PINCH ROLLER

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.

3-8

Fig. 3-10

Samsung Electronics

3) Periodic Maintenance and Check List

2mm

OIL

When overhauling, refer to the following table.

Alignment and Adjustments

Maintenance checks

Hours of use (H)

500 1000 1500 2000 2500 3000 3500 4000 4500 5000

system

D R

Perform-

Tape path

ance

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

Cleaning and degaussing of drum ass’y

S Y S T E

Capstan Shaft 66666

Gear Capstan 66666

Gear Pully Shaft 66666

Belt Timing ŮŮŮŮŮ

Motor Loading ŮŮŮŮŮ

OOOOOOOOOO

Abnormal Noise ŮŮŮŮŮŮŮŮŮ

Back Tension ŮŮŮŮŮ

Confirmation

Brake System ŮŮŮŮŮ

PB, REV Torque Measurement

ŮŮŮŮŮ

O : Cleaning ¨ : Oil Ů : Confirmation

Ů 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.)

Ů A“drop”of oil is defined as the amount attached to

the tip of a Ø 2mm stick as shown in Fig. 3-11.

Remark

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

Samsung Electronics

Fig. 3-11

3-9

Alignment and Adjustments

1 0.5

ARM TENSION Œ

CAP ADJUST ´

"B"

"A"

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).

3-10

Fig. 3-12

Samsung Electronics

Alignment and Adjustments

REEL DISK S TABLE RESTING SURFACE

REEL DISK T TABLE RESTING SURFACE

CHASSIS MAIN

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. 3-13

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).

Samsung Electronics

Fig. 3-14

3-11

Alignment and Adjustments

INLET OUTLET

NORMAL

DEFECT AT INLET

DEFECT AT OUTLET

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. 3-15

Fig. 3-16

3-12

Samsung Electronics

3-3-5(b) Tracking adjustment

MOTOR CAPSTAN

(DEFECTIVE) (CORRECT)

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.

Alignment and Adjustments

Fig. 3-17

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.

Fig. 3-18

Samsung Electronics

3-13

Alignment and Adjustments

Emin Emax

Emax

Emin

80(%)

1 8

abc a

abc

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)

Fig. 3-19

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).

Fig. 3-21

Fig. 3-20

3-14

Samsung Electronics

Alignment and Adjustments

MOTOR CAPSTAN

P1 P2 P3 P4 P6 P7 P9

FROM THE S REEL

TO THE T REEL

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.

Fig. 3-22

Fig. 3-23

Samsung Electronics

3-15

4. Disassembly and Reassembly

Œ REMOVE 3 SCREWS (M 1.7 X 4 BLK)

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

4-1 Cabinet and PCB

4-1-1 Ass’y Zoom Removal

4-1-2 Ass’y Front Removal

Fig. 4-1 Ass’y Zoom Removal

Samsung Electronics 4-1

Fig. 4-2 Ass’y Front Removal

Disassembly and Reassembly

Œ REMOVE 1 SCREW (M1.7 X 4 BLK)

´ REMOVE 1 SCREW (M1.7 X 5 WHT)

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

4-1-3 Ass’y Top Removal

4-1-4 Ass’y Left Removal

Fig. 4-3 Ass’y Top Removal

4-2

Fig. 4-4 Ass’y Left Removal

Samsung 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

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

Disassembly and Reassembly

4-1-6 Ass’y Rear Removal

Fig. 4-5 Ass’y LCD & EVF/CVF Removal

Fig. 4-6 Ass’y Rear Removal

4-3Samsung Electronics

Disassembly and Reassembly

Œ REMOVE 2 SCREWS (M1.4 X 3 BLK)

Œ REMOVE 2 SCREWS (M1.7 X 4 BLK)

´ REMOVE 2 SCREWS (T1.7 X 4 BLK)

4-1-7 Ass’y Cover Housing Removal

4-1-8 Ass’y Right Removal

Fig. 4-7 Ass’y Cover Housing Removal

4-4

Fig. 4-8 Ass’y Right Removal

Samsung Electronics

4-1-9 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.

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.

Disassembly and Reassembly

4-1-10 Ass’y Main PCB Removal

Fig. 4-9 Ass’y Deck Removal

Fig. 4-10 Ass’y Main PCB Removal

4-5Samsung Electronics

Disassembly and Reassembly

DC POWER SUPPLY

A B

4-2 Deck

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

+ Loading

Movement of Chassis

Unloading

4-6

Samsung Electronics

4-2-2 Housing Ass’y

HOUSING LOCK L ´

ˇ HOUSING LOCK R

Œ LEVER LOCK

¨ LEVER HOUSING

ˆ SHAPE OF PIN

Ø CAM PART

∏ CAM PART

HOUSING ASS'Y ”

"A"

Disassembly and Reassembly

4-2-2(a) Disassembly

Note : Do disassembly and reassembly in the

unloading mode.

1) Push the Lever(see arrow “A”, Detail A) turn the Lever Lock Œ and open the Housing Ass’y ”.

2) Separate the Hook of Housing Lock L ´ and Housing Lock R ˇ and then lift it.

3) Separate the Shape of Pin L and R ˆ from Cam Parts Ø, ∏ of Main Chassis and then lift the Housing Ass’y ”.

4-2-2(b) Reassembly

1) Mount the Shape of Pin L and R ˆ to Cam Parts Ø, ∏ of Main Chassis.

2) Mount Housing Lock L ´, R ˇ to right and left , and then locked.

Fig. 4-12 Housing Ass’y

4-7Samsung Electronics

Disassembly and Reassembly

"A"

Œ COVER REEL ASS'Y

´ IDLER ASS'Y

4-2-3 Cover Reel Ass’y, Idler Ass’y

4-2-3(a) Disassembly

1) Lift the Cover Reel Ass’y Œ (See arrow “A”).

2) Then lift the Idler Ass’y ´.

4-2-3(b) Reassembly

1) Fit the Idler Ass’y ´ into the Pin.

2) Mount the Cover Reel Ass’y Œ to the Main Chassis is groove in the oposite direction of arrow “A”.

4-8

Fig. 4-13 Cover Reel Ass’y, Idler Ass’y

Samsung Electronics

4-2-4 Reel Disk T, Brake T, Lever Eject

BRAKE T ´

ˇ LEVER EJECT

SHAPE OF PIN ˆ

Ø PIN

Œ REEL DISK T

¨ SHAPE OF PIN

Disassembly and Reassembly

4-2-4(a) Disassembly

Note 1 : When disassembling, take care not to deform

the part. Do not stain the post.

1) Lift up the Brake T ´.

2) Lift up the Reel Disk T Œ.

3) Separate the Lever Eject’s hook from the Main Chassis, and then Lift up the Lever Eject ˇ.

4-2-4(b) Reassembly

1) Insert the Lever Eject ˇ into the shape of pin ¨, and then lock the Lever Eject’s hook Eliminate this step.

2) Mount the Reel Disk T Œ to the pin Ø.

3) Insert the Brake T ´ into the shape of pin ˆ.

Fig. 4-14 Reel Disk T, Brake T, Lever Eject

4-9Samsung Electronics

+ 118 hidden pages