SAMSUNG CW29M064VPXXEC, CW29M064NPXXEC, CS21S8MH3C-ABS, CS21A11MH4SGAR, CS21A11MH3CABS Service Manual

COLOR TELEVISION RECEIVER

Chassis : S56A(P) Rev.1 Model: CW29M064VPXXEC

CW29M064NPXXEC CS21S8MH3C/ABS CS21A11MH4SGAR CS21A11MH3CABS

COLOR TELEVISION RECEIVER CONTENTS

Precautions

Reference Information

Specifications

Alignment and Adjustments

Troubleshooting

Exploded Views and Parts List

Electrical Parts List

Block Diagrams

Wiring Diagram

Schematic Diagrams

10.

1. Precautions

1-1 Safety 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: nonmetallic 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 (Figure 1-1): Warning: Do not use an isolation transformer during this test. Use a leakagecurrent tester or a metering system that complies with American National Standards Institute (ANIS 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 into 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 powerplug prongs in the AC outlet and repeat the test.

Fig. 1-1 AC Leakage Test

6. 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.

7. X-ray Limits: The picture tube is especially 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. Carefully reinstall the picture tube shields and mounting hardware; these also provide X-ray protection.

8. High Voltage Limits: High voltage must be measured each time servicing is done on the B+, horizontal deflection or high voltage circuits. Correct operation of the X-ray protection circuits must be reconfirmed whenever they are serviced.

(X-ray protection circuits also may be called

“horizontal disable” or “hold-down”.)

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.

Precautions

Samsung Electronics 1-1

LEAKAGE CURRENT

TESTER

DEVICE UNDER

TEST

TEST ALL

EXPOSED METAL

SURFACES

2-WIRE CORD

ALSO TEST WITH PLUG REVERSED

(USING AC ADAPTER

PLUG AS REQUIRED)

EARTH

GROUND

(READING SHOULD

NOT BE ABOVE

0.5mA)

Follow these safety, servicing and ESD precautions to prevent damage and protect against potential hazards such as electrical shock and X-rays.

1-1 Safety Precautions (Continued)

9. 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.

10. 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.

11. 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.

12. 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.

13. Some TV chassis have a secondary ground system in addition to the main chassis ground. This secondary ground system is not isolated from the AC power line. The two ground systems are electrically separated by insulating material that must not be defeated or altered.

14. Components, parts and wiring that appear to have overheated or that are otherwise damaged should be replaced with parts that meet the original specifications. Always determine the cause of damage or overheating, and correct any potential hazards.

15. 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.

16. 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.

17. 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.

18. 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.

Precautions

1-2 Samsung Electronics

1-2 Servicing Precautions

1. Servicing precautions are printed on the cabinet. Follow them.

2. Always unplug the unit’s AC power cord from the AC power source before attempting to: (a) Remove or reinstall any component or assembly, (b) Disconnect an electrical plug or connector, (c) Connect a test component in parallel with an electrolytic capacitor.

3. Some components are raised above the printed circuit board for safety. An insulation tube or tape is sometimes used. The internal wiring is sometimes clamped to prevent contact with thermally hot components. Reinstall all such elements to their original position.

4. After servicing, always check that the screws, components and wiring have been correctly reinstalled. Make sure that the portion around the serviced part has not been damaged.

5. Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels, input terminals and earphone jacks).

6. Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON. Connect an insulation resistance meter (500V) to the blades of the AC plug.

The insulation resistance between each blade of the AC plug and accessible conductive parts (see above) should be greater than 1 megohm.

7. 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.

8. 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.

Precautions

Samsung Electronics 1-3

Warning1: First read the “Safety Precautions” section of this manual. If some unforeseen circumstance creates a conflict between

the servicing and safety precautions, always follow the safety precautions.

Warning2: An electrolytic capacitor installed with the wrong polarity might explode.

1. 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.

2. Immediately before handling any semicon ductor 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.)

3. After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to prevent accumulation of electrostatic charge.

4. Do not use freon-propelled chemicals. These can generate electrical charges that damage ESDs.

5. Use only a grounded-tip soldering iron when soldering or unsoldering ESDs.

6. Use only an anti-static solder removal device. Many solder removal devices are not rated as “anti-static”; these can accumulate sufficient electrical charge to damage ESDs.

7. Do not remove a replacement ESD from its protective package until you are ready to install it. Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or other conductive materials.

8. Immediately before removing the protective material from the leads of a replacement ESD, touch the protective material to the chassis or circuit assembly into which the device will be installed.

9. Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes together, or lifting a foot from a carpeted floor can generate enough static electricity to damage an ESD.

Precautions

1-4 Samsung Electronics

1-3 Precautions for Electrostatically Sensitive Devices (ESDs)

Reference Information

Samsung Electronics 2-1

2. Reference Information

2-1 Tables of Abbreviations and Acronyms

A Ah Å dB dBm

°C °F °K F G GHz g H Hz h ips kWh kg kHz kΩ km km/h kV kVA kW I MHz

Ampere Ampere-hour Angstrom Decibel Decibel Referenced to One Milliwatt Degree Celsius Degree Fahrenheit degree Kelvin Farad Gauss Gigahertz Gram Henry Hertz Hour Inches Per Second Kilowatt-hour Kilogram Kilohertz Kilohm Kilometer Kilometer Per Hour Kilovolt Kilovolt-ampere Kilowatt Liter Megahertz

MV MW MΩ m µA µF µH µm µs µW mA mg mH mI mm ms mV nF

Ω

pF Ib rpm rps s V VA W Wh

Megavolt Megawatt Megohm Meter Microampere Microfarad Microhenry Micrometer Microsecond Microwatt Milliampere Milligram Millihenry Milliliter Millimeter Millisecond Millivolt Nanofarad Ohm Picofarad Pound Revolutions Per Minute Revolutions Per Second Second (Time) Volt Volt-ampere Watt Watt-hour

Table 2-1 Abbreviations

Reference Information

2-2 Samsung Electronics

Table 2-2 Table of Acronyms

ABL AC ACC AF AFC AFT AGC AM ANSI APC APC A/V AVC BAL BPF B-Y CATV CB CCD CCTV Ch CRT CW DC DVM EIA ESD ESD FBP FBT FF FM FS GND G-Y H HF HI-FI IC IC IF

Automatic Brightness Limiter Alternating Current Automatic Chroma Control Audio Frequency Automatic Frequency Control Automatic Fine Tuning Automatic Gain Control Amplitude Modulation American National Standards Institute Automatic Phase Control Automatic Picture Control Audio-Video Automatic Volume Control Balance Bandpass Filter Blue-Y Community Antenna Television (Cable TV) Citizens Band Charge Coupled Device Closed Circuit Television Channel Cathode Ray Tube Continuous Wave Direct Current Digital Volt Meter Electronics Industries Association Electrostatic Discharge Electrostatically Sensitive Device Feedback Pulse Flyback Transformer Flip-Flop Frequency Modulation Fail Safe Ground Green-Y High High-Frequency High Fidelity Inductance-Capacitance Integrated Circuit Intermediate Frequency

I/O L L LED LF MOSFET MTS NAB NEC NTSC OSD PCB PLL PWM QIF R RC RF R-Y SAP SAW SIF SMPS S/N SW TP TTL TV UHF UL UV VCD VCO VCXO VHF VIF VR VTR VTVM TR

Input/output Left Low Light Emitting Diode Low Frequency Metal-Oxide-Semiconductor-Field-Effect-Tr Multi-channel Television Sound National Association of Broadcasters National Electric Code National Television Systems Committee On Screen Display Printed Circuit Board Phase-Locked Loop Pulse Width Modulation Quadrature Intermediate Frequency Right Resistor & Capacitor Radio Frequency Red-Y Second Audio Program Surface Acoustic Wave(Filter) Sound Intermediate Frequency Switching Mode Power Supply Signal/Noise Switch Test Point Transistor Transistor Logic Television Ultra High Frequency Underwriters Laboratories Ultraviolet Variable-Capacitance Diode Voltage Controlled Oscillator Voltage Controlled Crystal Oscillator Very High Frequency Video Intermediate Frequency Variable Resistor Video Tape Recorder Vacuum Tube Voltmeter Transistor

REMARK

OPTION

OPTION OPTION OPTION

OPTION

OPTION OPTION OPTION OPTION

LOC. NO

D407

D801S

D803 D805

HC101

IC201S

IC202 IC301 IC501 IC601 IC602 IC631 IC701

IC801S

IC802 IC852

ICE01 PC801S PT801S

Q401 Q403 Q804

QE01 RL801S SF101S SF102S

SW801S

T401

T444S T801S TU01S

Table 2 - 3 IC Line - Up

Reference Information

Samsung Electronics 2-3

2-2 IC Line Up

SPEC

DIODE-RECTIFIER

DIODE-BRIDGE

DIODE-RECTIFIER

ASSY H/S IC HYBRID IC MICOM

IC-EEPROM

ASSY H/S ASSY H/S ASSY H/S

IC-SOUND PROCESSOR

IC-VOL, DETECTOR

IC-VIDEO SWITCH

ASSY H/S ASSY H/S

IC-POSI.ADJUST REG.

IC-VOTAGE COMP.

PHOTO-COUPLER

THERMISTOR-PTC

ASSY H/S TR-POWER TR-POWER

FET-SILICON

RELAY-POWER FILTER-SAW AV FILTER-SAW AV

SWITCH-PUSH

TRANS-HORIZ,DRIVE

TRANS FBT

TRANS SWITCHING

TUNER

DESCRIPTION

FMP-3FU, 1.5KV, 5A, TO-3PF, ST D5SB60, 600V, 6A, SIP-4 FMG-G2CS, 1000V, 3A, TO-220F, ST BRIDGE, A62-00045A, D06U20S, DREAM PAP103T, STP, 6P, PRE-AMP, TP TDA959XPS/N1/3I, OTP, 64P, ST, SDIP C81DC, 1028x8Bit, 8P, 100mS, 5V, PLASTIC, 10uA, CMOS POWER, AA62-00056A, LA7845 VIDEO, AA62-30175D, TDA607Q TDA7297, AA62-30182E MSP3410D-CS, SDIP, 52P, 8V, 1.2W, SOUND PROCESSOR 7042, TO-92, 3P, 177MIL, PLASTIC, 4 NJM2246D, 3-INPUT, DIP, 8P, 300MIL POWER, AA62-30181K, 5Q1265RT POWER, AA62-30184A, KA7632 431, TO-92, 3P, 4.58MIL, PLASTIC, 2 393, DIP, 8P, 300MIL, DUAL, 36V, CMO TR, 130-260%, 200mW, DIP-4, ST

4.50HM, +30/-20%, 220V, 290VAC, 21A, -, TR POWER AA62-00057A, KSD5703, WASHER-TR KSC2073-H2, NPN, 25W, TO-220, TP, 40-24 KA614, PNP, 25W, TO-220, TP, 40-24 IRF620, N, 200V, 5A, 0.8ohm, 50W, TO 12VDC, 500mW, 10A, 1FormA, 15mS, 5m

38.9MHz, SIP5K, ST, 17.9dB, B/G, D/K, I, M/N

38.9MHz, SIP5K, ST, 18dB, B/G, L/L’, M/N, 42dB 250V, 5A, DPST, -, JPW-2104B 80mH, 520uH, E119 FUH-29A001B(S), 25/29”, 130 CS21S5T, 80~280V. PM5, PL5, EER4245, 470UH, 125/16/9 TEDE9-203A, PAL, 181CH, 38.9MHz, 750ohm, DIN, ASYMM, 5V

Reference Information

2-4 Samsung Electronics

FUNCTION

Multistandard, A2 Stereo, Equalizer, 2 Scart, RCA9P Multistandard, A2 Stereo, Nicam, Equalizer, 2 Scart, RCA9P

SPEC

TDA9592 TDA9594

FUNCTION

50Hz, W/O TTX 50Hz, With TTX 10page

REMARK

Table 2-3-1 UOC

SPEC

MSP3400D MSP3410D

REMARK

Table 2-3-2 SOUND IC

SPEC

TDA7297

FUNCTION

15W x 2CH, 10W x 2CH, 5W x 2CH

REMARK

Table 2-3-3 SOUND AMP

SPEC

TECC0949PG35A

TEDE9-203A TAEL-G671D

FUNCTION

Without LNA Without LNA With LNA

REMARK

SAMSUNG LG ALPS

Table 2-3-4 TUNER

SPEC

TDA6107Q

TDA6108JF

FUNCTION

25” Normal 29” Normal 21” Flat 25” Flat

REMARK

Table 2-3-5 VIDEO OUTPUT AMP

Specifications

Samsung Electronics 3-1

3. Specifications

Television

System

Channels

Intermediate

Frequency

Power

Antenna

CS CZ CW CB CI CII CX CK

Band

VHF UHF

IF Carrier

Frequency

Picture

Sound

Chroma

PAL, SECAM-B/G,I

02 - 12 21 - 69

PAL, SECM -B/G

38.90[MHz]

33.40[MHz]

34.47[MHz]

PAL, SECAM-B/G,I

01 - 13 21 - 69

PAL, SECAM-D/K,K1

38.90[MHz]

32.40[MHz]

34.47[MHz]

PAL, SECAM-B/G,I

02 - 09 13 - 57

PAL-I

38.90[MHz]

32.90[MHz]

34.47[MHz]

PAL, SECAM-B/G,I

02 - 13 14 - 69

NTSC-M

45.75[MHz]

41.25[MHz]

42.18[MHz]

PAL, SECAM-B/G, D/K, I, NT4.43, NT3.58 PAL, SECAM-B/G, D/K, NT4.43 PAL, SECAM-B/G, D/K, I, NT4.43, NT3.58 PAL, SECAM-B/G, D/K, I, NT4.43, NT3.58 PAL, SECAM-B/G, D/K, I, NT4.43, NT3.58 PAL, SECAM-B/G, D/K, I, NT4.43, NT3.58 PAL, SECAM-B/G, D/K, I, NT4.43, NT3.58 PAL, SECAM-B/G, D/K, I, NT4.43. NT3.58

AC100~240V, 50/60Hz VHF, UHF : Telescopic dipole antenna)(75ohm unbalanced type)

System

3-2 Samsung Electronics

MEMO

Alignment and Adjustments

Samsung Electronics 4-1

4. Alignment and Adjustments

4-1 General Alignment Instructions

1. Usually, a color TV-VCR needs only slight touch-up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync and focus.

2. Observe the picture for good black and white details. There should be objectionable color shading; if color shading is present, demagnetize, perform purity and convergence adjustments described below.

3. Use the specified test equipment or its equivalent.

4. Correct impedance matching is essential.

5. Avoid overload. Excessive signal from a sweep generator might overload the front-end of the TV. When inserting signal markers, do not allow the marker generator to distort test results.

6. Connect the TV only to an AC power source with voltage and frequency as specified on the backcover nameplate.

7. Do not attempt to connect or disconnect any wires while the TV is turned on. Make sure that the power cord is disconnected before replacing any parts.

8. To protect against shock hazard, use an isolation transformer.

4-2 Automatic Degaussing

A degaussing coil is mounted around the picture tube, so that external degaussing after moving the TV should be unnecessary. But the receiver must be properly degaussed upon installation.

The degaussing coil operates for about 1 second after the power is switched ON. If the set is moved or turned in a different direction, the power should be OFF for at least 10 minutes.

If the chassis or parts of the cabinet become magnetized, poor color purity will result. If this happens, use an external degaussing coil. Slowly move the degaussing coil around the faceplate of the picture tube and the sides and front of the receiver. Slowly withdraw the coil to a distance of about 6 feet before turning power OFF.

If color shading persists, perform the following Color purity and Convergence adjustments.

4-3 High Voltage Check

CAUTION : There is no high voltage adjustment on this chassis. The B+ power supply should be +135 volts (with full color- bar input and normal picture level).

1. Connect a digital voltmeter to the second anode of the picture tube.

2. Turn on the TV. Set the Brightness and Contrast controls to minimum (zero beam current).

3. Adjust the Brightness and contrast controls to both extremes. Ensure that the high voltage does not exceed 30 KV under any conditions.

Alignment and Adjustments

4-2 Samsung Electronics

4-4 FOCUS Adjustment

1. Iput a black and white signal.

2. Adjust the tuning control for the clearest picture.

3. Adjust the FOCUS control for well defined scanning lines in the center area of the screen.

4-5 Factory Adjustment

1. To enter the “Service Mode”, Press the remote-control keys in this sequence :

- If you do not have Factory remote-control

- If you have Factory remote-control

4-5-1 Service Mode

4-5-2 Factoy Mode OSD

ADJUST

OPTION 52 2A 48 G2-ADJUST RESET SPM-836EAN 2002/02/08

AGC

SCT SBT BLR BLB

RG GG BG

VSL

VS VA HS SC

CDL

33 13

9 31 27 32 25 31 19 38 40 30 24

STT

AKB

PDL NDL PSR NSR VOL LCO

TXP

MVOL

FMWS

AGCS1

OMD

SCL

0 15 10 15 10 10

9 10

1 26

PWL

AGN

PEK ACL FCO

SCBT

SSP PSNS HPAR

HBOW

EWID EPAR EUCN ELCN

1 2 0

0 45 20

1 32 32 32 32 32 32

ETRP

VZ SVM VMA

DPSR

DNSR

DSBT DCDL DBLR DBLB

32 58

0 15 10

9 31 27

4-5-2(A) ADJUST

PICTURE OFF PICTURE ON

PICTURE ON

DISPLAY

()

FACTORY

MUTE

Alignment and Adjustments

Samsung Electronics 4-3

OSD

AGC

SCT SBT BLR BLB

RG GG BG

VSL

VS VA HS

SC CDL STT

AKB

PDL

NDL

PSR

NSR

VOL LCO TXP

MVOL

FMWS

AGCS1

OMD

SCL

PWL AGN

PEK ACL FCO

SCBT

SSP

Range

0 ~ 63 0 ~ 23 0 ~ 23 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 15

0 ~ 7

0 ~ 1 0 ~ 15 0 ~ 15 0 ~ 23 0 ~ 23 0 ~ 63

0 ~ 1 0 ~ 15 0 ~ 50

0 ~ 1

0 ~ 3 0 ~ 63

0 ~ 3 0 ~ 15

0 ~ 1

0 ~ 3

0 ~ 1

0 ~ 1 0 ~ 63 0 ~ 23

1Eh(D5-D0)

1Dh

1Bh 14h(D5-D0) 15h(D5-D0) 16h(D5-D0) 17h(D5-D0) 18h(D5-D0) 0Fh(D5-D0) 12h(D5-D0) 10h(D5-D0) 09h(D5-D0) 0Fh(D5-D0) 2Ah(D3-D0)

08h

2Ah(D4) 1Ah(D3-D0) 1Ah(D3-D0)

1Ch 1Ch

1Fh

27h(D7-D5)

87F2h(D5-D0)

Oh(D15-D0)

29h(D5) 28h(D2-D1) 05h(D5-D0) 04h(D5-D4) 04h(D3-D0)

29h(D7) 19h(D7-D6)

20h(D1)

21h(D0)

1Bh

19h(D5-D0)

Initial Value

33 13

9 31 27 32 25 31 19 38 40 30 24

0 15 10 15 10 10

9 10

1 26

1 12

0 45 20

Remark

RF AGC Sub contrast(high light adjustment) Sub brightness(low light adjustment) Black level offset R(low light R adjustment) Black level offset B(low light B adjustment) White point R(high light R adjustment) White point G(high light 25 fixed) White point B(high light B adjustment) Vertical slope Vertical shift Vertical amplitude Horizontal shift S-correction Cathode drive level Sub tint(NTSC only) Black current stabilization PAL Y-delay adjustment NTSC Y-delay adjustment PAL sub color gain adjustment NTSC sub color gain adjustment Initial vol adjustment PLL demodulator frequency adjust( 0 : set ) TTX horizontal shift adjustment(Micom Memory Part) Melody initial vol adjustment(MSP34XX) Narrow-band sound PLL window selection IF AGC speed Off-set IF demodulator Soft clipping level Peak white limiting FM demodulator gain Peaking center frequency Automatic color limiting Forced color limiting Screen brightness(different from INCH) Sub Sharpness gain adjustment

Alignment and Adjustments

4-4 Samsung Electronics

OSD

PSNS HPAR

HBOW

EWID EPAR EUCN ELCN

ETRP

VZ SVM VMA

DPSR

DNSR

DSBT DCDL DBLR DBLB

Range

0 ~ 1 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 3 0 ~ 3 0 ~ 23 0 ~ 23

0 ~ 23

0 ~ 15 0 ~ 63 0 ~ 63

21h(D2)

06h(D5-D0)

07(D5-D0) 0Ah(D5-D0) 0Bh(D5-D0) 0Ch(D5-D0) 0Dh(D5-D0) 0Eh(D5-D0) 13h(D5-D0) 2Dh(D5-D0) 2Eh(D5-D0)

1Ch 1Ch

1Bh 2Ah(D3-D5) 14h(D5-D0)

15h(D15-D0)

Initial Value

1 32 32 32 32 32 32 32 32

0 15 10

9 31 27

Remark

Ident sensitivity PAL/NTSC decoder Horizontal parallelogram Horizontal bow EW width EW parabola EW upper corner parabola EW lower corner parabola EW tarpezium Vertical zoom Delay of RGB output to VM output Ampulitude of SVM out DVD PAL sub color gain adjustment DVD NTSC sub color gain adjustment DVD Sub brightness(low light adjustment) DVD Cathode drive level DVD Black level offset R(low light R adjustment) DVD Black level offset B(low light B adjustment)

Alignment and Adjustments

Samsung Electronics 4-5

ADJUST

OPTION 52 2A 48

G2-ADJUST RESET SPM-836EAN 2002/02/08

Item LNA

SYSTEM

AUDIO

JACK

ZOOM

AUTO POWER

2nd SIF

HOTEL MODE

BKS HIGH DEVIA HELP MENU

LANGUAGE

V-GUARD

1 2

4 5 6 7 8

9 10 11 12 13 14

Initial value

OFF

MONO

RCA

NOR/ZOOM/16:9

ON ON ON OFF ON OFF ON

EAST ASIA

OFF

Remark CIS : ON CS - CB -CD MONO - MONO/BILI - L-STEREO L-STEREO/BILI - STEREO - NICAM RCA - SCART - RCA+DVD NOR/ZOOM/16:9 - NOR/ZOOM ON(MUST OFF) ON - OFF(21”F PIN FREE CRT OFF) ON - OFF(QUEST OFF) OFF - ON(OPTION) ON - OFF(EUROPE OFF) OFF(MUST OFF) ON - OFF(EUROPE OFF) EAST ASIA - CHINA OFF(MUST OFF)

4-5-2(B) OPTION

ADJUST OPTION 52 2A 48

G2-ADJUST

RESET SPM-836EAN 2002/02/08

4-5-2(C) G2-ADJUST

☞ Entering G2-Adjust Mode Screen Adjust : Displyed As “NG”.

→ Turn SCREEN VR OF FBT, Adjust Value Become To Be “OK”.

Screen Adjust : N.G

Screen Adjust : O.K

Screen Adjust : N.G

Alignment and Adjustments

4-6 Samsung Electronics

4-5-2(D) SCREEN CHANGE (I2C BUS GEOMETRIC ADJUSTMENT)

1 V Shift

V Slope

3 H EW

6 V Amp

V SC

H Trapizium

4 H Parabola

5 H Corner

H Shift

H Symmetry

Alignment and Adjustments

Samsung Electronics 4-7

PIN NO

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

SYMBOL

P1.3/T1

P1.6/SCL

P1.7/SDA

P2.0/TPMW

P3.0/ADC0 P3.1/ADC1 P3.2/ADC2 P3.3/ADC3

VSSC/P

P0.5 P0.6

VSSA

SECPLL

VP2

DECDIG

PH2LF PH1LF GND3

DECBG

EWD

VDRB

VDRA

IFIN1 IFIN2

IREF VSC

AGCOUT SIFIN1/DVBIN1 SIFIN2/DVBIN2

GND2

SIFAGC/DVBAGCR

REFO/AMOUT/REFIN

PIN FUNCTION

port 1.3 or Counter/Timer 1 input port 1.6 or IIC-bus clock line port 1.7 or IIC-bus data line port 2.0 or Tuning PWM output port 3.0 or ADC0 input port 3.1 or ADC1 input port 3.2 or ADC2 input port 3.3 or ADC3 input digital ground for m-Controller core and periphery port 0.5(8mA current sinking capability for direct drive of LEDs) port 0.6(8mA current sinking capability for direct drive of LEDs) digital ground of TV-processor SECAM PLL decoupling 2nd supply voltage TV-processor(+8V) supply voltage decoupling of digital circuit of TV-processor phase-2 filter phase-1 filter ground 3 for TV-processor bandgap decoupling East-West drive output vertical drive B output vertical drive A output IF input 1 IF input 2 reference current input vertical sawtooth capacitor tuner AGC output SIF input 1 / DVB input 1 SIF input 2 / DVB input 2 ground 2 for TV processor narrow band PLL filter

Automatic Volume Leveling/subcarr reference output/sound IF input/external reference signal input for I signal mixer for DVB operation

4-6

PIN ASSIGNMENT SPECIFICATION

CHECK VOLTAGE

S-By P-On

Alignment and Adjustments

4-8 Samsung Electronics

PIN NO

33 34

36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53

55 56 57 58 59 60 61 62 63 64

SYMBOL

HOUT FBISO

QSSO/AMOUT

EHTO

PLLIF

IFVO/SVO/DVBO

VP1

CVBS1

GND

CVBS/Y

SVM

INSSW2

R2/VIN G2/YIN B2/UIN

BCLIN BLKIN

RO GO BO

VDDA

VPE

VDDC

OSCGND

XTLIN

XTLOUT

RESET

VDDP

P1.0/INT1

P1.1/T0

P1.2/INTO

PIN FUNCTION

horizontal output flyback input/sandcastle output

QSS intercarrier output/AM output in stereo applications or deemphasis(front-end audio out)/AM output in mono applications

EHT/overvoltage protection input IF-PLL loop filter AGC sound IF/inter-external AGC for DVB applications main supply voltage TV processor internal CVBS input ground for TV processor CVBS3/Y input chroma input scan velocity modulation output 2nd RGB/YUV insertion input 2nd R input/V(R-Y) input PR input 2nd G input/Y input 2nd B input/U(B-Y) input PB input beam current limiter input black current input/V-guard input Red output Green output Blue output

analog supply of Teletext decoder and digital supply of TVprocessor(3.3 V)

OTP Progamming Voltage digital supply to core(3.3 V) oscillator ground supply crystal oscillator input crystal oscillator output reset digital supply to peryipher(+3.3 V) port 1.0 or external interrupt 1 input port 1.1 or Counter/Timer 0 input port 1.2 or external interrupt 0 input

CHECK VOLTAGE

S-By P-On

Samsung Electronics

Troubleshooting

5-1

5. Troubleshooting

5-1 No Power

Counect

the Power code

Check

the

Power LED

LED Off

Check the

Voltage of IC102 #8

Abnormal

Check the

B+ 11.5V LIne

Abnormal

Check the

Micro fuse FD802S

LED On

Normal

Check the

IC201S, B+

#14, #39, #51, #54

Abnormal

Check/Replace

IC802

Normal

Check the

X-tal,SDA,SCL port

of IC201S

Normal

Check the

(33)Pin (H-Drive)

of IC201S

Normal

Check the

130V- A Line

Normal

Abnormal

Replace IC201 S

Abnormal

Check the FBT,D808

Abnormal

Check the

IC801S, D801S, FP801S

Check / Replace

Q401

5-2 Samsung Electronics

5-2 No Video (Sound OK)

Troubleshooting

Check RK,GK,BK

Signal

Nornal

Check the

Voltage of heater

Nornal

Check

CRT and FBT

Abnormal

Check/Replace

R418,R513, D503

Abnormal

Check/Replace

IC201S

Check R,G,B

Signal into CRT

PCB

Abnormal

Check IC201S Pin 51, 52, 53

(R.G.B)

Nornal

Check IC501

B+(180V-B)

Abnormal

Check the

resistance of R512

Nornal

Check/Replace

D405, FBT

Nornal

Re-Adjust

Screen Voltage

Abnormal

Replace

R512

Abnormal

Check IC201S

Pin 49(V-GUARD)

Pin50(IK)

Nornal

Check

CRT and FBT

5-3 No Sound (Video OK)

Troubleshooting

Samsung Electronics 5-3

Check the

TUNER

Abnormal

* STEREO

Check IC602

Pin47(SIF)

Normal

Check IC602

B+

Normal

Check the signal

Output from CN601

CN602

Abnormal

Check IC601

Pin8,9

Abnormal

* MONO

Check IC201S

Pin32(SIF)

Normal

Check/Replace

IC201S

Normal

Check

Speaker and Wire

Abnormal

Check

IC101,TUNER

Normal

Abnormal

Check FD801S

Normal

Check IC601

B+

D805

See

No Power

Normal

Replace

IC601

Abnormal

Replace

FD801S,D805

Check B+ Line

5V-B, 8V-B

Check/Replace

IC602

5-4 Samsung Electronics

Troubleshooting

5-4 Horizontal Lines Appear or Screen

5-5 No TTX

Check IC301 B+ 16V-C,-13.5V-C

Normal

Check IC201S

Pin 21,22

(VDN,VDP)

Normal

Check / Replace

IC301

Abnormal

Check

R412, R416

DD401, D404

Abnormal

Check

IC201S

Check IC201S

Normal

See No Video (Sound ok)

Abnormal

Check/Replace

IC201S

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