Samsung SV-471X, SV-215X, SV-213X, SV-413X, SV-211X Service Manual

...
VIDEO CASSETTE RECORDER
SV-415X/413X/411X/410X/472X/471X SV-215X/213X/211X/210X/272X/271X SV-415F/410F/215F/210F SV-415B/215B/213B SV-415G/410G/215G/210G
SERVICE
REC
SYSTEM
REW
F.F
POWER EJECT
PROGRAM
STOP
OPEN
REC
SYSTEM
POWER EJECT
PROGRAM
STOP
OPEN
REW F.F
SV-415X/415F/415B/415G
SV-215X/215G
SV-413X/411X/410X/472X/471X SV-213X/211X/210X/272X/271X
SV-410F/215F/210F/215B/213B/410G/210G
Manual
VIDEO CASSETTE RECORDER CONTENTS
For mechanical disassembly and adjustment, refer to the “Mechanical Manual” (DX7-A/AC, DX8-A/AC AC68-20392A).
1. Precautions
2. Reference Information
3. Product Specifications and Comparison Chart
4. Disassembly and Reassembly
5. Alignment and Adjustment
6. Exploded View and Parts List
7. Electrical Parts List
8. Block Diagrams
9. PCB Diagrams
10. Wiring Diagram
11. Schematic Diagrams
© Samsung Electronics Co., Ltd. MAR. 1998 AC68-20399A
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) : 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
Currant Tester
Earth Ground
Test all
exposed metal
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 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, 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 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.
Samsung Electronics 2-1
2. Reference Information
2-1 IC BLOCK
2-1-1 IC601 (HD6473977)
Reference Information
2-2 Samsung Electronics
2-1-2 IC301 (SS11511M)
Reference Information
Samsung Electronics 2-3
2-1-3 IC302 (LA7411) - 2 Head
Reference Information
2-4 Samsung Electronics
2-1-4 IC302 (LA7416) - 4 Head
Reference Information
Samsung Electronics 2-5
2-1-5 IC303 (SS23377M)
Reference Information
2-6 Samsung Electronics
2-1-6 IC801 (KA8119)
Samsung Electronics 3-1
3. Product Specifications and Comparison Chart
3-1 Product Specifications
Operation Description
Format VHS PAL standard Heads Video : 4 or 2 rotary heads
Audio/Control : 1 stationary head
Erase : 1 full track erase head Receiving channel VHF-I, VHF-III, UHF, Hyperband Television system Standard B/G (for German & West Europe)
Standard B/G, L’L (for France)
Standard B/G, D/K (for East Europe & Middle East Asia)
Standard I (for U.K) Recording system
Luminance FM azimuth recording Colour
PAL (NTSC/MESECAM) : Down converted subcarrier phase shifted direct recording
SECAM : 1/4 counted down subcarrier direct recording
NTSC PB on PAL TV Tape speed SP : 23.39 mm/sec, LP : 11.69 mm/sec Recording/playback time SP : 3 hours (E-180 Tape), LP : 6 hours (E-180 Tape) F.F/REW time About 100 ~ 190 sec in REW/F.F with E-180 tape VIDEO
Input 0.5 to 2.0 Vp-p : 75 ohm unbalanced
Output 1.0 ± 0.2 Vp-p : 75 ohm unbalanced
Signal-to-noise ratio Better than 43 dB (SP)
Horizontal resolution More than 240 lines (SP)
Audio
Input -8 dBm, 47 Kohm unbalanced
Output -8 ± 3 dBm, 1 Kohm unbalanced
Wow and flutter (WTD) 0.4% max (SP)
Signal-to-noise ratio 42 dB min (IHF A filter)
Frequency response 100Hz ~ 8KHz Power requirement 230V (AC 50/60 Hz) Power consumption Approx. 18 watts Operation temperature 41°F ~ 104°F (5°C ~ 40°C) Operation humidity 10%-75% Weight 4.4 Kg (net) Dimensions (W x H x D) 360 x 92 x 314 mm
Design and specifications are subject to change without notice.
Product Specifications
3-2 Samsung Electronics
3-2 Comparison Chart
COUNTRY MODEL HEADS
TAPE SPEED
S/VIEW V/PLUS VPS PDC ATS
AUTO CLOCK CANAL+ P/MIERE VCR/TV JUST REC
FINLAND SV-415X 4 SP/LP O X X O O O O X O O X SWEDEN SV-410X 4 SP/LP X X X X X X X X X O X NORWAY SV-215X 2 SP O X X O O O O X O X X
SV-210X 2 SP X X X X X X X X X X X
FRANCE SV-415F 4 SP/LP O X X O O O O X O O X
SV-410F 4 SP/LP X X X X X X O X O O X SV-215F 2 SP O X X O O O O X O X X SV-210F 2 SP X X X X X X O X O X X
NETHERLANDS SV-415X 4 SP/LP O X X O O O O X O O X
SV-410X 4 SP/LP X X X X X X O X X O X SV-215X 2 SP O X X O O O O X O X X SV-210X 2 SP X X X X X X O X X X X
SWITZERLAND SV-413X 4 SP/LP O X O X O O X O O O X
SV-213X 2 SP O X O X O O X X X X X SV-210F 2 SP X X X X X X O X O X X
AUSTRIA SV-413X 4 SP/LP O X O X O O X O O O X
SV-213X 2 SP O X O X O O X X X X X
GERMANY SV-413X 4 SP/LP O X O X O O X O O O X
SV-213X 2 SP O X O X O O X X X X X
GREECE SV-410X 4 SP/LP X X X X X X X X X O X
SV-215X 2 SP O X X O O O O X O X X SV-210X 2 SP X X X X X X X X X X X
ITALY SV-413X 4 SP/LP O X X X X X O X O O X
SV-411X 4 SP/LP X X X X X X O X O O X SV-215X 2 SP O X X O O O O X O X X SV-211X 2 SP X X X X X X O X O X X SV-472X 4 SP/LP X X X X X X O X O O X SV-471X 4 SP/LP X X X X X X O X O O X SV-272X 2 SP X X X X X X O X O X X SV-271X 2 SP X X X X X X O X O X X
PORTUGAL SV-411X 4 SP/LP X X X X X X O X O O X
SV-215X 2 SP O X X O O O O X O X X SV-211X 2 SP X X X X X X O X O X X
DIAMOND HEAD
(DLC)
COUNTRY MODEL HEADS
TAPE SPEED
S/VIEW V/PLUS VPS PDC ATS
AUTO CLOCK CANAL+ P/MIERE VCR/TV JUST REC
DENMARK SV-415X 4 SP/LP O X X O O O O X O O X
SV-410X 4 SP/LP X X X X X X X X X O X SV-215X 2 SP O X X O O O O X O X X SV-210X 2 SP X X X X X X X X X X X
SPAIN SV-411X 4 SP/LP X X X X X X O X O O X
SV-215X 2 SP O X X O O O O X O X X SV-211X 2 SP X X X X X X O X O X X
U.K SV-415B 4 SP/LP X O X O O O X X X O X
SV-215B 2 SP/LP X O X O O O X X X O X SV-213B 2 SP/LP X O X X X X X X X O X
BULGARIA SV-415G 4 SP/LP O X O X O X X X X O O
SV-210G 2 SP X X X X X X X X X X O
CZECH. SV-415G 4 SP/LP O X O X O X X X X O O
SV-210G 2 SP X X X X X X X X X X O
HUNGARY SV-415G 4 SP/LP O X O X O X X X X O O
SV-410G 4 SP/LP X X X X X X X X X O O SV-215G 2 SP O X X X X X X X X X O SV-210G 2 SP X X X X X X X X X X O
POLAND SV-415G 4 SP/LP O X O X O X X X X O O
SV-410G 4 SP/LP X X X X X X X X X O O SV-215G 2 SP O X X X X X X X X X O SV-210G 2 SP X X X X X X X X X X O
ROMANIA SV-415G 4 SP/LP O X O X O X X X X O O
SV-215G 2 SP X X X X X X X X X X O
CROATIA SV-413X 4 SP/LP O X O X O O X O O O X
SV-213X 2 SP O X O X O O X X X X X SV-210X 2 SP X X X X X X X X X X X
SLOVENIA SV-413X 4 SP/LP O X O X O O X O O O X
SV-213X 2 SP O X O X O O X X X X X SV-210X 2 SP X X X X X X X X X X X
Product Specifications
Samsung Electronics 3-3
DIAMOND HEAD
(DLC)
Product Specifications
3-4 Samsung Electronics
MEMO
Samsung Electronics 4-1
4. Disassembly and Reassembly
4-1 Cabinet Assembly
Note : Disassemble in the order shown.
Reassemble in reverse order.
4-1-1 Cabinet Top removal
Œ REMOVE 3 SCREWS (BH;3-4X16-BLACK)
Fig. 4-1 Cabinet Top removal
4-1-2 Bottom cover removal
Œ REMOVE 2 SCREWS (BH;2-3X10-YELLOW)
´ RELEASE 2 SNAPFITS
´ RELEASE 2 SNAPFITS
ˇ Lift up the bottom cover
in the direction of arrow.
Fig. 4-2 Bottom Cover removal
Disassembly and Reassembly
4-2 Samsung Electronics
4-1-3 Ass’y Front Panel removal
(Bottom view)
´ RELEASE 4 HOOKS
Œ REMOVE
KNOB-SHUTTLE
ˇ RELEASE 3 HOOKS
(Top view)
Fig. 4-3 Ass’y Front Panel removal
Disassembly and Reassembly
Samsung Electronics 4-3
4-1-4 Ass’y Function-Timer removal
Note : Take extreme care not to damage the PCB when removing it.
Œ RELEASE 6 TABS
ˇ RELEASE 1 TAB
´ REMOVE 1 SCREW
(BH;2-3X10-YELLOW)
Fig. 4-4 Ass’y Function-Timer removal
Note : 1. When removing chassis, take extreme care not to damage the main PCB front.
2. When reinstalling the deck on the main PCB, take extreme care not to damage the sensor.
Disassembly and Reassembly
4-4 Samsung Electronics
4-1-5 Chassis removal
Fig. 4-5 Chassis Removal
Œ REMOVE 2 SCREWS (BH;2-3X12-YELLOW) ´ REMOVE 2 SCREWS
(BH;2-4X12-YELLOW)
¨ Lift the ass'y full deck up.
CONNECTOR BOARD-ASS'Y
ˇ REMOVE 1 SCREW (BH;3X12-YELLOW)
ˆ RELEASE 1 TAB
Ø RELEASE 1 TAB
Lift the ass'y main up to remove.
Disassembly and Reassembly
Samsung Electronics 4-5
4-2 Circuit Board Locations
MAIN BOARD
FUNCTION-TIMER BOARD
SUB BOARD
(SV-415F/410F/215F/210F ONLY)
SHUTTLE BOARD
Fig. 4-6 Circuit Board Locations
Disassembly and Reassembly
4-6 Samsung Electronics
MEMO
Samsung Electronics 5-1
5. Alignment and Adjustment
Note : After replacing the assÕy full deck, the assÕy main, the cylinder assÕy and the micom(IC601), the remote
control assÕy can be used to adjust the ÒX-point (tracking center) adjustmentÓ and ÒHead S/W pointÓ adjustment.
5-1 Reference
5-1-1 The type of remote control ass’y
1. Remote control assÕy (AC93-10039Y/69099-633-252) is specified as a service jig in the service manual of X-5/X-6(DX5-R/DX5-RC/DX6-R/DX6-RC) chassis. (See Fig. 5-1)
2. Normal remote control assÕy for X-7/X-8 (DX7-R/DX7-RC/DX8-R/DX8-RC) chassis. (See Fig. 5-2)
5-1-2 How to identify between normal
remote control ass’y and multi remote control ass’y for X-7/X-8 chassis (See Fig. 5-2)
1. The color of some buttons related to TV function are
gold.
2. Audio button is added instead of the test button hidden behind of inlay.
3. The positions of some buttons are different.
EJECT
2
45 6
789
0
CLK/COUNT
REW
F.F
STOP
CLR/RST DISPLAY
Q-PRO
MENU
S
H
I
F
T
S
H
U
T
T
L
E
DAILY WEEKLY
REC
P/S
PRESET BAND
SEARCH MEMORY
OUTPUT
INDEX SLOW INPUT
INPUT BUTTON
SP/LP BUTTON
SP LP A.DUB VPS
FINE CH
TRK (TRACKING, FINE) BUTTON
POWER BUTTON
POWER
PLAY BUTTON
PLAY
TEST BUTTON IS HIDDEN BEHIND OF INLAY.
3
HEAD S/W ADJ. ("INPUT" OR "TEST" AND "3" BUTTON)
1
TRACKING CENTER ADJ. ("INPUT" OR "TEST" AND "1" BUTTON)
633-252
REMOTE CONTROL ASS'Y PART NO.
Fig. 5-1 Remote Control Ass’y Jig for X-5/X-6 Chassis
(AC93-10039Y/69099-633-252)
EJECT
2
45 6
789
0
CLK/COUNT
REW
F.F
STOP
AUDIO
DISPLAY
REC
P/S
INDEX A.TRK
INPUT BUTTON
FINE PROG
TRK (TRACKING, FINE) BUTTON
POWER BUTTON
POWER
PLAY BUTTON
PLAY
TEST BUTTON IS HIDDEN BEHIND OF INLAY.
3
HEAD S/W ADJ. ("INPUT" OR "TEST" AND "3" BUTTON)
1
TRACKING CENTER ADJ. ("INPUT" OR "TEST" AND "1" BUTTON)
SYSTEM
CLR/RST
S
H
U
T
T
L
E
SPEED BUTTON
SPEED AFT
INPUT
TV/VCR
PICTURE
A.DUB
2
45 6
789
0
CLK/COUNT
REW
F.F
STOP
DISP./
REC
P/S
INDEX
VCR
POWER
PLAY
3
1
VCR
CLR/RST
S
H
U
T
T
L
E
SPEED
TV/VCR
PICTURE
A.DUB
NORMAL REMOTE CONTROL ASS'Y
(CAN ADJUST)
MULTI REMOTE CONTROL ASS'Y
(CAN NOT ADJUST)
-/--
FINE
AUDIO
ADD BUTTON(AUDIO)
GOLD COLOR
TV
GOLD COLOR
TV
POWER
INPUT
GOLD COLOR
VOLUME PROG
GOLD COLOR
MENU
Q-PRO
SLOW
SOFTEN OK SHARPEN
MENU
Q-PRO
SLOW
SOFTEN OK SHARPEN
Fig. 5-2 Remote Control Ass’y for X-7/X-8 Chassis
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