Samsung pck520r5c service manual

PROJECTION TV RECEIVER
Chassis : P51A(N) REV.1 Model : PCK520R5C/XAA
PROJECTION TV RECEIVER CONTENTS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Precautions
Reference Information
Alignment and Adjustments
Troubleshooting
Exploded View & Part List
Electrical Part List
Block Diagrams
Wiring Diagram
Schematic Diagrams
SERVICE
Manual
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
© Samsung Electronics Co., Ltd. Jan. 2006
Printed in Korea
AA82-03340A
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
3-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.
9. When some parts inside the optical engine (except lamp) are damaged, replace the whole optical engine.
Precautions
Samsung Electronics 1-3
Warning 1 : 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.
Warning 2 : An electrolytic capacitor installed with the wrong polarity might explode.
1-3 Precautions for Electrostatically Sensitive Devices (ESDs)
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
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 k 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 M m µA µF µH µm µs µW mA mg mH mI mm ms mV nF
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
IC507 EL4583CN (OPTION) IC665 TDA7265 IC904 KS24C04
ICP02 MC14528BCP (OPTION) ICS801 TNY253P ICS802 PC123
IC601 TDA7429S
IC602 KA4558
IC905 PCF8574P
ICV01 TA8851BN
ICV02,ICV03 HCF4053BE
ICP01 SDA 9488X
ICP02 4931
IC101 TDA9850
IC101 LA7565B
IC471 TL494CN
IC491 74HC123P
ICZ104,ICZ103 STK392-040
IC301 LA7845
IC801 STR-F6656
IC802 SVD001
IC804 SE110N
IC806 PS2561
IC501,IC531,IC561 TDA6111Q
IC01 UPD 64082GF IC02 UPC1862GS IC03 5412222
1
2
3
4 5
6
7
8
9
10
Block NameNo. IC Location IC Name
Table 2 - 3 IC Line - Up
Reference Information
Samsung Electronics 2-3
2-2 IC Line Up
2-2-1 Progressive
MAIN
TERMINAL BOARD
PIP
MTS MODULE IF MODULE
HV MODULE
CONVERGENCE
SUB
CRT
3D-COMB
Reference Information
2-4 Samsung Electronics
11
12
13
Block NameNo. IC Location IC Name
Table 2 - 3 IC Line - Up (Continued)
FORMAT-CONVERTER
PROSCAN
3D-PHONIC
IC01 FS310KBC IC02 72V161621 IC03 Z9021106PSC
IC04 24C02 IC201 CIP3250A IC202 VPC3215C IC203 7705 IC204 SDS9280
ICP301 SDA9400
IC209 SDA9361 IC212 74F125 ICV02 CXA2011Q ICY03 CXA1839Q ICY17 74HCT221
ICD101 TL062CDT ICD102 SAA7367 ICD103 TMS57052 ICD104 LC32464M ICD105 Z9021106PSC
ICD106, ICD107 PCM1717E
ICD108,ICD109,ICD110,ICD111 TL062CDT
Reference Information
Samsung Electronics 2-5
1
2
3
4 5
6
7
8
9
10
IC665 TDA7265 IC904 KS24C04
ICS801 TNY253P ICS802 PC123
IC601 TDA7429S IC602 KA4558 IC905 PCF8574P ICV01 TA8851BN
ICV02,ICV03 HCF4053BE
ICP01 SDA9488X ICP02 4931 IC101 TDA9850 IC101 LA7565B IC471 TL494CN IC491 74HC123P
ICZ104,ICZ103 STK392-010
IC301 LA7845 IC801 STR-F6656 IC802 SVD001 IC804 SE110N IC806 PS2561
IC501,IC531,IC561 TDA6111Q
IC01 UPD64082 GF
ICI02 CXA1686M
ICC03 CXD2043Q
Block NameNo. IC Location IC Name
Table 2 - 3 IC Line - Up
2-2-2 Interlace
MAIN
TERMINAL BOARD
PIP
MTS MODULE IF MODULE
HV MODULE
CONVERGENCE
SUB
CRT
2D-COMB
Reference Information
2-6 Samsung Electronics
11
Block NameNo. IC Location IC Name
Table 2 - 3 IC Line - Up (Continued)
CHROMA
IC201 CXA2095S IC203 2210
IC204, IC206 BCF4053B
IC205 CXA1839Q
Reference Information
Samsung Electronics 2-7
2-3 MICOM IIC BUS LINE -UP
2-3-1 Progressive
XLS24C02
SLAVE ADDR.: A0h
UPD6488
SLAVE ADDR.: B8h
TDA9850
SLAVE ADDR.: B4h
Z 9 0 3 7 X
(
M
I C O
M
IIC 1 BUS
#30 : SDA 1 #31 : SCL 1
SDA9488
PCF8574P
SLAVE ADDR.: 40h
PCF8574P
SLAVE ADDR.: 42h
TECC1070PG30A
SLAVE ADDR.: C0h
TCPN9082PC27A
SLAVE ADDR.: C6h
SDA9400
CXA2011Q
SLAVE ADDR.: 84h
IIC 2 BUS
CIP3250A
#12 : SDA 2 #11 : SCL 2
(
SLAVE ADDR.: Dch
SDA9361
SLAVE ADDR.: 8ch
CXA1839Q
SLAVE ADDR.: 8Ah
SDA9280
SLAVE ADDR.: 2ch
TA8851AN
IIC 3 BUS
# 47 : SDA 3 # 48 : SCL 3
SLAVE ADDR.: 90h
TDA7429S
SLAVE ADDR.: 80h
PCF8574P
SLAVE ADDR.: 40h
SERIAL BUS
3D-PHONIC
MODULE
Reference Information
2-8 Samsung Electronics
2-3-2 Interlace
XLS24C02
SLAVE ADDR.: A0h
UPD6488
SLAVE ADDR.: B8h
TDA9850
SLAVE ADDR.: B4h
Z 9 0 3 5 X
(
M
I C O
M
IIC 1 BUS
SDA9488
#30 : SDA 1 #31 : SCL 1
IIC 2 BUS
#12 : SDA 2 #11 : SCL 2
PCF8574P
SLAVE ADDR.: 40h
PCF8574P
SLAVE ADDR.: 42h
TECC1070PG30A
SLAVE ADDR.: C0h
TCPN9082PC27A
SLAVE ADDR.: C6h
CXA2095
CXA1839Q
(
TA8851AN
IIC 3 BUS
# 47 : SDA 3 # 48 : SCL 3
SLAVE ADDR.: 90h
TDA7429S
SLAVE ADDR.: 80h
PCF8574P
SLAVE ADDR.: 40h
SERIAL BUS
3D-PHONIC
MODULE
Specifications
Samsung Electronics 3-1
3. Specifications
Broadcasting System Scanning System
Tuning Range
Antenna Impedance
Intermediate Frequency
Sound Output
Rated Voltage
W/B Coordinates
High Voltage
FUSE
Power Consumption
NTSC Progressive Scanning VHF : CH2 ~ CH13 UHF : CH14 ~ CH69 Cable : CH1, CH14 ~ 125 75 ohm Unbalanced Video : 45.75 MHz Sound : 42.25 MHz Chrominance Subcarrier : 42.17 MHz STD : 15W FULL MAX : 20W 120V / 60 Hz Hx : 292 Hy : 260 Y : 14.5 Lx : 293 Ly : 263 Y : 0.23 31KV 250V/6.3A CODE NO : 3601-000300 285W
Alignment and Adjustments
Samsung Electronics 4-1
4. Alignment and Adjustments
4-1 When entering the service mode:
1. Turn on the TV, and then select “STANDARD”on the picture adjustment mode.
2. Turn off the TV (STAND-BY).
3. Enter the service mode by pressing the remote control keys in the following sequence :
MUTE 1→8→2→Power On
Note : If necessary, re-do steps 1~3.
Initial display when the service mode is switched.
SERVICE NORMAL 480P
GEOMETRICS PICTURE PICTURE2 SOUND PIP OPTION READ RESET
1. When a RF signal is received
SERVICE NORMAL 1080i
GEOMETRICS PICTURE PICTURE2 SOUND PIP OPTION READ RESET
2. When a DTV signal is received
Alignment and Adjustments
4-2 Samsung Electronics
MAIN MENU
ZOOM COMPRESS FREEZE SET UP RESET EXIT
3. When the PC mode is switched
MAIN MENU MENU DISPLAY
CH UP/DOWN Select item by moving cursor
VOL UP/DOWN Decrease or increase the adjustment values
4. Service Mode Control Keys
Note : The PC mode can be switched to the service mode by pressing the F.Mode Key (only on the factory remote control).
Alignment and Adjustments
Samsung Electronics 4-3
Item
TV/480P
Item
1080i
43”
53” 61”
VS VA VL
VSC
VE HA
PPH
PA UPC LOC
132 122
114 104
0
80
100
96
128 128
132 122
114 104
0
80
100
96
128 128
114
88 114 104
0
80 100
96 128
128
HEH
HS
VAN VBO HSP
VS4
VA4 HS4 HA4
HP4
0
63 131 128 141
150
96
56 106 131
0
63 131 128 141 150
96
56 106
131
0
60 131 128 141 125
53
45
54
VS VA VL
VSC
VE
HA
PPH
PA UPC LOC
HEH
HS
VAN VBO
HSP VS4 VA4 HS4
HA4
HP4
53”
61”
Remark
128
75 114 104
0 114 100
96
128 128
0
65
131 128 139 150
96
56 106 131
91
96
62
125
53 45
54
GEOMETRIC
4-2 Facotry Data
4-2-1 Progressive
Alignment and Adjustments
4-4 Samsung Electronics
Model
Remark
OPTION
PCJ533RF
PCJ533R
PCJ534RF PCK520R PCJ614RF PCK5315R PCK6115R
Byte
Model
Byte
PCJ534R
HCJ552W
HCJ652W
BYTE 0 : 71 BYTE 1 : 54 BYTE 0 : 71 BYTE 1 : 50
BYTE 0 : 71 BYTE 1 : 44
BYTE 0 : 71 BYTE 1 : 40 BYTE 0 : 79 BYTE 1 : 41 BYTE 0 : 39 BYTE 1 : 41
Item
Remark
PICTURE
RDR GDR
BDR
RCT
GCT
BCT
ABM
ATH
Picture
Item
Picture
20 20
20 31
31 31
1 1
RYR RYB
GYR GYB
GAM HWD
HTM
HSE
2 13 12
9 12
2
1
0
Item
Remark
PICTURE 2
SBR
SCT SCL
SHU
CTI
SSP SFO
Picture
Item
Picture
31
7
12
8 1 2
2
POV
LTI
VML
VMD
DCT DPC
3
2
2
3
3
1
Alignment and Adjustments
Samsung Electronics 4-5
Item
Initial Value
Item
Initial Value
43”
VS
VA
VCP VLN VSC
HS
HPC
HA
HPP HAA HAB
HUC
32 32
0 5 3
0 17 20
8 11
0
8
HLC VAS
VSR VUV
VLV VJS VZS VRP VBS HBS HLB HRB
43”
Remark
8
40 25
0 0 0 0
3 3
0 15 15
GEOMETRIC
4-2-2 Interlace
Remark
Variable Variable
Variable Variable
Item
Initial Value
Item
Initial Value
43”
DCT
DPI
AS DCL ABL POV SFO
TA SCT SBT SCR
STT
GA
1 1
1 1 1 2 1 1 5 8 7
9
32
BA GC
BC
GAM
AFC
TO
SSP
AMS
FHS CFS
SC
LWC
COR
PICTURE
Remark
Variable
52”
43”
32
8 8
2 2
1 5 1 0
0 30 32
50
Remark
Variable Variable
Variable Variable
52”
32
8 8
2 2 1 5 1 0 0
30 32
50
Alignment and Adjustments
4-6 Samsung Electronics
Item
Initial Value
Item
Initial Value
43”
PIC HUE BRT
55
7 8
RYR RYB SHP
PICTURE 2
REMARK
52”
55
7 8
43”
15 15
0
REMARK
52”
15 15
0
Item
Initial Value
43”
SEPERATE
15
SOUND
Remark
52” 16
Item
Initial Value
Item
Initial Value
43”
Contrast
HUE
POS-HOR-L
5 3
32
POS-HOR-R POS-VER-U POS-VER-D
PIP
REMARK
Variable
52”
5 3
32
43”
29 21 21
REMARK
52”
29 21 21
Item
Initial Value
Byte0 Byte1
91 01
OPTION
Remark
Dissimilar initial values by model and function
Aging Off
Alignment and Adjustments
Samsung Electronics 4-7
Byte : 00
Name
D7 D6 D5
D4 D3 D2 D1 D0
SharpCenter50En
CXA1839(DVD)
V-Chip
AFN
Auto Power On
Note 1
Remark
Current Set Setting
Option adjustment is done in the service mode
0
X
Sharpness, Color, Tint
adjustment available
in the DVD Menu
X
X X
1
Operate
Sharpness, Color, Tint
not adjustable
in the DVD Menu
Operate
Operate Operate
Function
SZM-386U OPTION TABLE
Byte : 01
Name
D7 D6 D5 D4 D3 D2 D1
D0
3D Comb-filter
All Mighty Conv.
Remark
0
UPD6488
X
1
UPD64082
Operate
Function
Alignment and Adjustments
4-8 Samsung Electronics
4-2 Screen Change (When adjusting I2C Bus Geometric items)
1 V SHIFT
2 V LINEARITY
3 H SIZE
6 V SIZE
7 V - S - CORRECTION
8
PIN PHASE
4
PIN AMP
5 V ANGLE
9 H SHIFT
10 V BOW
Alignment and Adjustments
Samsung Electronics 4-9
4-3 Beam Alignment
PRECAUTION
1. Input a crosshatch and dot pattern.
2. Select the “STANDARD” video mode.
3. Warm up the TV for at least 10 minutes.
4. Connect an audio oscillator to the pin jig between GT401~GT402 (located on the deflection PCB) and GND.
5. Determine the ZERO-magnet area (using the beam-alignment CY)
6. Check the squarewave at the point where the focus is misaligned (Use an audio oscillator).
ADJUSTMENT
1. Cover the Red and Blue lenses.
2. Adjust the Green lens as shown in the figures below
3. Adjust the G-Focus until any light around the core disappears.
4. Cover the Green and Blue lenses.
5. Adjust the Red lens using the same method as with the Green lens.
6. Note: The Blue lens is not adjusted because its focus varies little (VM-coil is installed).
7. After the adjustments are completed, disconnect the jig pin connector.
(Creation of CPM Zero Magnet)
(Creation of the 2-pole/4-pole zero magnets)
G-FOCUS
(Varying G-Focus Pack)
G-FOCUS
(When VM 2-Pole Adjustment is completed)
CORE
CORE
Varying the 2-pole of VM
Varying the 4-pole of VM
(Positioning the Core in the Center)
(Adjust until the light around the core becomes a circle)
Alignment and Adjustments
4-10 Samsung Electronics
4-4 Other Adjustments
4-4-1 Screen Adjustment
1. Warm up the TV for at least 30 minutes.
2. Turn to the Video Mode (No Signal) using a remote-control.
3. Connect an oscilloscope to RK,GK,BK.
4. Adjust the VR (VR501, VR531, VR561) screen so that RK, GK, BK pulse is 20Vp-p each. (Turn the R,G,B VR screen fully counterclockwise in the area of each flyback line.)
4-4-2 White Balance Adjustment
1. Select the “STANDARD” video mode.
2. Input 100% white pattern.
3. In the stand-by mode, press the remote-control keys in the following sequence: Mute 1 8 2 Power ON
4. Warm up the TV for at least 30 minutes.
5. Input a 10-step signal.
6. R-cut off, B-cut off, and G-cut off by pressing the Volume +/- keys.
7. Adjust the low light with viewing the dark side of the screen.
8. Select R-drive, G-drive, and B-drive by pressing the Volume +/- keys.
9. Adjust the high light with viewing the light side of the screen.
10. If necessary, redo adjustments 6~9.
11. Press the Menu key to exit.
4-4-3 Sub-Brightness Adjustment
1. Input a sub-brightness adjustment signal. (TOSHIBA PATTERN)
2. In the stand-by mode, press the remote-control keys in the following sequence : Mute - 1 - 8 - 2 - Power ON
3. Select SBT by pressing the Volume +/- keys.
4. Adjust so that the 7th step on the right side of the screen is not seen (Use the Volume +/­keys).
5. Press the Menu key to exit.
4-4-4 High Voltage (31KV) Check
PRECAUTION
1. Input a lion head pattern.
2. Select “STANDARD” video mode.
3. Warm up the TV for at least 10 minutes.
4. Use a 1000:1 probe.
ADJUSTMENT
1. Connect the (+) terminal of the 1000:1 probe to the high voltage distributor and the (-) terminal to GND (located on the deflection board).
2. Adjust VR471 (located on the deflection board) so that the digital meter indicates DC 31V ± 0.1V.
Alignment and Adjustments
Samsung Electronics 4-11
4-4-5 F.S. (Fail Safe) Circuit Check
Note : The F.S. Circuit check must be performed
after servicing.
1. Turn on the TV.
2. Select the “STANDARD” video mode.
3. Short GT18, GT17 (located on the Convergence PCB). Then, both sound and picture disappear. (Note: Even if the shorted terminals are removed, both sound and picture do not appear. This proves the F.S. circuit is working. )
4. To restore both sound and picture, turn off the TV and reset it after about 30 seconds.
4-4-6 Static Focus Adjustment
PRECAUTION
1. Select the “STANDARD” video mode.
2. Input a crosshatch pattern.
3. Cover the lenses that are not being adjusted.
4. Connect a convergence jig and read data.
5. Adjust the lens for best focus. (See Fig, 4-1, next page)
STATIC FOCUS (CONTINUED)
Vary the focus pack VR (Red, Blue) on the front cabinet. Adjust the TV for best possible focus around the center of the crosshatch pattern, without losing overall screen balance. Figure Crosshatch Pattern Examine these points together.
4-4-7 Lens Focus Adjustment
PRECAUTIONS
1. Do this adjustment after the static focus adjustment and the tilt adjustment.
2. Select the “STANDARD” video mode. (Contrast:64, Brightness:32)
3. Input a crosshatch pattern.
ADJUSTMENT
1. Loosen the lens screws.
2. Cover the two lenses that are not being adjusted.
3. Adjust the lens, observing the color aberration vertically and horizontally within 3 blocks of the center of the crosshatch pattern.
4. When the lens is turned clockwise, the color aberration will change as follows:
Lens
Color Aberration Change R Orange - Crimson G Blue - Red B Purple - Green
5. Green lens adjustment: Set the lens at the point where Blue just changes to Red. If the color aberration is irregular throughout the picture screen, adjust the lens to show Red color aberration (approximately 1~3 mm area) within a 3-block grid around the horizontal center-line. If the color aberration is irregular, adjust the lens as shown in the diagram below. (Accurate alignment of Green is important for overall color quality.)
6. Red lens adjustment Set the Red lens at the point where Orange becomes Crimson.
7. Blue lens adjustment Set the Blue lens at the point where Purple becomes Green.
P
L1
L2
RED ABERRATION
BLUE ABERRATION
L1, L2 < P
_
Fig. 4-1 Crosshatch Pattern.
Fig. 4-2 Color Aberration
Examine these points together
Alignment and Adjustments
4-12 Samsung Electronics
4-4-8 Horizontal Dynamic Focus Adjustment
PRECAUTION
1. Input a crosshatch pattern.
2. Select the “STANDARD” video mode.
3. Warm up the set for at least 10 minutes.
ADJUSTMENT
1. Cover the Red and Blue lenses.
2. Adjust VR491 (located on the convergence PCB, H-Parabola).
3. Balance the left and right sides of the dynamic focus lines.
Alignment and Adjustments
Samsung Electronics 4-13
4-5 Screen-Jig
4-5-1 43J5P
4-5-2 43J5P DTV Mode
Alignment and Adjustments
4-14 Samsung Electronics
4-5-3 53J5P
4-5-4 53J5P DTV Mode
Alignment and Adjustments
Samsung Electronics 4-15
4-5-5 61J5P
4-5-6 61J5P DTV
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