Samsung VR8809 Manuel utilisateur

VIDEO CASSETTE RECORDER

VR8809/8709/8609/8509/8459/8409

VR5709/5609/5509/5459/5409/3609/3409

VR8809C/8769C/8719C/8609C/8509C/8459C/8409C

VR5809C/5709C/5609C/5509C/5459C/5409C/3609C/3409C

SV-C120UM/C95UM/C70UM/C60UM/C45UM

SV-C100UP/C60P/C50UP/C141P/C61P

SV-C106P/C56P/C151P/C45P/C123P/C63P

SV-C105P/C55P/C25P/SV-C15P/SP-C15P

SV-C142P/C122P/C90P/C52P/C40P/C22P

SERVICE

1. Precautions

2. Alignment and Adjustment

3. Exploded View and Parts List

4. Electrical Parts List

5. Schematic Diagrams

Manual

VIDEO CASSETTE RECORDER CONTENTS

For mechanical disassembly and adjustment, refer to the “Mechanical Manual” (DX-9R AC68-00001A).

VR8809/8809C/5809C/SV-C142P

VR8769C/SV-C70UM/C151P/C105P/C60P

VR8709/5709/8719C/5709C/SV-C120UM/C60UM/C100UP/C50UP/C141P/C123P/C63P/C61P

VR8609/8509/5609/5509/3609/8609C/8509C/5609C/5509C/3609C/SV-C122P/C106P/C56P/C55P/C52P/C25P/C22P

VR8409/5409/3409/8409C/5409C/3409C/SV-C90P/C40P/C15P/SP-C15P

VR8459/5459/8459C/5459C/SV-C95UM/C45UM/C45P

SERVICE MANUAL VR8809/5709/8809C/5809C/SV-C120UM/C100UP/C1414P/C142P/C105P

ELECTRONICS

Printed in Korea

AC68-00099A

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IMPORTANT SERVICE GUIDE

3MODE SWITCH (PROGRAM SWITCH) ASSEMBLY POINT

1) When installing the ass’y full deck on the Main PCB, be sure to align the assembly point of mode switch.

ASSEMBLY POINT

Fig. 1

3HOW TO EJECT THE CASSETTE TAPE

(If the unit does not operate on condition that tape is inserted into housing ass’y)

1) Remove the Holder Worm Œand the gear worm ´. (See Fig. 2)

2) Turn the Gear Worm Wheel ˇcounterclockwise in the direction of arrow with screw driver. (See Fig. 2)

3) When Slider S, T are approched in the position of unloading, rotate holder Clutch counterclockwise after inserting screw driver in the

hole of frame’s bottom in order to wind the unwinded tape. (Refer to Fig. 3)

(If you rotate Gear Worm Wheel continuously when tape is in state of unwinding, you may cause a tape contamination by grease and

tape damage. Be sure to wind the unwinded tape in the state of set horizently.)

4) Rotate Gear Worm Wheel ˇcounterclockwise using screw driver again up to the state of eject mode and then pick out the tape.

(Refer to Fig. 2)

Fig. 2 Fig. 3

ŒHOLDER WORM

´GEAR WORM

SCREW DRIVER

ˇGEAR WORM WHEEL

FRAME

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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 pretective 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 unitÕs

AC switch first in the ON position and then OFF,

measure the current between a known erath

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 unitÕs 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 (Òsolid stateÓ) 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 sny 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

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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 manufacturerÕs 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 instrumentÕs ground lead to

the instrument chassis ground before connecting

the positive lead; always remove the instrumentÕs

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, out-

of-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

Òintegral implosionÓ 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 Òin-lineÓ picture

tubes are equipped with a permanently attached

deflection yoke; do not try to remove such

Òpermanently attachedÓ 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. A replacement

part that does not have the same safety

characteristics as the original might create shock,

fire or other hazards.

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Samsung Electronics 2-1

2. Alignment and Adjustment

2-1 Reference

1) X-Point (Tracking center) adjustment, “Head switching adjustment” and “NVRAM option setting” can be adjusted with remote control.

2) When replacing the Micom (IC601) and NVRAM (IC603 ; EEPROM) be sure to adjust the “Head switching adjustment” and

“NVRAM option setting”.

3) When replacing the cylinder ass’y, be sure to adjust the “X-Point” and “Head switching adjustment”.

4) Among Samsung VCR remote control used for adjustment as a accessory, only the remote control that has figures buttons (0 ~ 9) is

available for all adjustment regardless of chassis.

5) How to adjustment.

- Intermittently short-circuit the test point on Main PCB with pincets to set the adjustment mode.

- If the corresponding adjustment button is pressed, the adjustment is preformed automatically.

- If the adjustment is completed, be sure to turn the power off.

2-1-1 Location of adjustment button of remote control

Fig. 2-1

SHUTTLE

V-LOCK

REPLAY F.ADV/SKIP

TV/VCR PREV.CH

POWER EJECT

CH/TRK

VCR

CABLE/DSS

ENTER

SLOW

VOL

100

X-Point (Tracking Center)

Adjustment

Head Switching Adjustment

NVRAM Option Setting

Remote Control for adjustment is not supplied as a Service Jig.

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2-2 Samsung Electronics

Alignment and Adjustment

2-1-2 Test point location for adjustment mode setting

Fig. 2-2 Main PCB (Bottom View)

Short-Circuit

Application Models ;

VR8809/8709/8609/8509/5709/5609/5509/3609

VR8809C/8769C/8719C/8609C/8509C/5809C/5709C/5609C/5509C/3609C

SV-C120UM/C70UM/C60UM/C100UP/C60P/C50UP

SV-C141P/C61P/C106P/C56P/C151P/C123P/C63P/C142P/C122P/C52P/C22P/C105P/C55P/C25P

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Alignment and Adjustment

Samsung Electronics 2-3

Fig. 2-3 Main PCB (Bottom View)

Short-Circuit

Application Models ;

VR8459/8409/5459/5409/3409

VR8459C/8409C/5459C/5409C/3409C

SV-C95UM/C45UM/C90P/C45P/C40P/C15P/SP-C15P

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2-4 Samsung Electronics

Alignment and Adjustment

2-2 Mechanical Adjustment

Note : Refer to the Mechanical Manual ÒDX-9R (AC68-00001A)Ó for the adjustment and confirmation of

assÕy full deck.

2-2-1 The number and position of test point

Test point : TP601 (Control Pulse)

TP602 (H’D S/W -Trigger)

TP301 (Envelope)

TP302 (Audio output)

TP303 (Video output)

Fig. 2-4 Location of Test point (Main PCB-Top View)

AUDIO OUTPUT

HEAD SWITCHING

ENVELOPE

2-2-1 ACE Head Position (X-Point) Adjustment

(See the 2-2-1(d) ACE Head Position (X-Point) Adjustment

on page 2-2 of the Mechanical Manual)

1) Playback the alignment tape (Color bar).

2) Intermittently short-circuit the two test points on

Main PCB to set the adjustment mode.

(See Fig. 2-2 and 2-3)

3) Press the Ò5Ó button of remote control then adjust-

ment is operated automatically. (See Fig. 2-1)

4) Connect the CH-1 probe to TP301 (Envelope) the

CH-2 probe to TP602 (HÕD switching pulse) and

then trigger to CH-1.

5) Insert the (-) driver into the X-Point adjustment

hole and adjust it so that envelope waveform is

maximum.

6) Turn the Power off.

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Alignment and Adjustment

Samsung Electronics 2-5

2-3 Head Switching Point Adjustment

1) Playback the alignment tape.

2) Intermittently short-circuit the two test points on Main PCB to set the adjustment mode. (See Fig. 2-2 and 2-3)

3) Press the ÒREC.SPEEDÓ button of remote control then adjustment is operated automatically. (See Fig. 2-1)

4) Turn the Power off.

2-4 NVRAM Option Setting

1) Intermittently short-circuit the two test points on Main PCB to set the adjustment mode. (See Fig. 2-2 and 2-3)

2) Press the ÒMENUÓ button on the remote control about 5 seconds then option setting display is appeared.

(See Fig. 2-5)

3) Select the option number (See Table 2-1 ; Page 2-6) of corresponding model with ÒFFÓ and ÒREWÓ button on

the remote control.

4) If selecting the option number is completed, press the ÒSTOPÓ button of remote control.

(If ÒSTOPÓ button is pressed, the selected number is changes reversed color. ; See Fig. 2-5)

5) Press the ÒMENUÓ button of remote control again to store the option number.

(ÒsaveÓ is displayed for a second as shown Fig. 2-6 and this setting is completed.)

6) Turn the Power off.

1) NVRAM Option is adjusted at production line basically.

2) In case Micom (IC601) and NVRAM (IC603 ; EEPROM) is replaced, be sure to set the corresponding option number of the repaired

model. (If the option is not set, the unit is not operated.)

MOVE :

SAVE

: MENU

01 02 03 04 05 06 07 08

09 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24

25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40

Fig. 2-5

MOVE : save

SAVE

: MENU

01 02 03 04 05 06 07 08

09 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24

25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40

Fig. 2-6

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2-6 Samsung Electronics

Alignment and Adjustment

COUNTRY MODELS OPTION NUMBER

U.S.A. VR8809 2, 4, 5, 6, 7, 9, 18, 27, 33, 34, 35, 36

VR8709 2, 5, 6, 7, 9, 18, 29, 34, 36

VR8609 2, 6, 7, 18, 28, 34, 36

VR8509 2, 6, 7, 18, 28, 34, 36

VR8459 2, 7, 12, 20, 30, 36

VR8409 2, 7, 12, 20, 30, 36

VR5709 5, 6, 7, 9, 18, 29, 34, 36

VR5609 6, 7, 18, 28, 34, 36

VR5509 6, 7, 18, 28, 34, 36

VR5459 7, 12, 20, 30, 36

VR5409 7, 12 ,20, 30, 36

VR3609 1, 6, 7, 18, 28, 34, 36

VR3409 1, 7, 12, 20, 30, 36

CANADA VR8809C 2, 4, 5, 6, 7, 9, 18, 27, 33, 34, 35, 36

VR8769C 2, 4, 5, 6, 7, 9, 18, 26, 33, 34, 36

VR8719C 2, 5, 6, 7, 9, 18, 29, 33, 34, 36

VR8609C 2, 6, 7, 18, 28, 34, 36

VR8509C 2, 6, 7, 18, 28, 34, 36

VR8459C 2, 7, 12, 20, 30, 36

VR8409C 2, 7,12, 20, 30, 36

VR5809C 4, 5, 6, 7, 9, 18, 27, 33, 34, 35, 36

VR5709C 5, 6, 7, 9, 18, 29, 34, 36

VR5609C 6, 7, 18, 28, 34, 36

VR5509C 6, 7, 18, 28, 34, 36

VR5459C 7, 12, 20, 30, 36

VR5409C 7, 12, 20, 30, 36

VR3609C 1, 6, 7, 18, 28, 34, 36

VR3409C 1, 7, 12, 20, 30, 36

MEXICO SV-C120UM 2, 5 ,6, 7, 18, 29, 36, 37

SV-C95UM 2, 7, 12, 20, 30, 36, 37

SV-C70UM 5, 6, 7, 18, 26, 36, 37

SV-C60UM 6, 7, 18, 29, 36, 37

SV-C45UM 7, 12, 20, 30, 36, 37

PANAMA SV-C100UP 2, 6, 7, 18, 29, 36, 37

SV-C60P 5, 6, 7, 18, 26, 36, 37

SV-C50UP 6, 7, 18, 29, 36, 37

CHILE SV-C141P 2, 4, 5, 6, 7, 18, 29, 36, 37

SV-C61P 5, 6, 7, 18, 29, 36, 37

SV-C106P 2, 6, 7, 18, 28, 36, 37

SV-C56P 6, 7, 18, 28, 36, 37

PERU SV-C151P 2, 4, 5, 6, 7, 18, 26, 36, 37

SV-C45P 7, 12, 20, 30, 36, 37

BOLIVIA SV-C123P 2, 5, 6, 7, 18, 29, 36, 37

SV-C63P 5, 6, 7, 18, 29, 36, 37

PHILIPPINESS SV-C105P 2, 6, 7, 18, 26, 36

SV-C55P 6, 7, 18, 28, 36

SV-C25P 1, 6, 7, 18, 28, 36

SV-C15P 1, 3, 6, 12, 22, 30, 36

SP-C15P 1, 3, 12, 21, 30, 36

AAFES SV-C142P 2, 4, 5, 6, 7, 18, 27, 34, 35, 36

SV-C122P 2, 5, 6, 7, 18, 28, 34, 36

SV-C90P 2, 7, 12, 20, 30, 36

SV-C52P 6, 7, 18, 28, 34, 36

SV-C40P 7, 12, 20, 30, 36

SV-C22P 1, 6, 7, 18, 28, 34, 36

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