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MT2251 (SERIES C)
SERVICE MANUAL
COLOR TELEVISION RECEIVER
ORIGINAL MFR'S VERSION C
Design and specifications are subject to change without notice.
SERVICING NOTICES ON CHECKING
1. KEEP THE NOTICES
As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual.
6. AVOID AN X-RAY
Safety is secured against an X-ray by considering about the cathode-ray tube and the high voltage peripheral circuit, etc. Therefore, when repairing the high voltage peripheral circuit, use the designated parts and make sure not modify the circuit. Repairing except indicates causes rising of high voltage, and it emits an X-ray from the cathoderay tube.
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an electric shock while the electric current is flowing.
3. USE THE DESIGNATED PARTS
The parts in this equipment have the specific characters of incombustibility and withstand voltage for safety. Therefore, the part which is replaced should be used the part which has the same character. Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a mark, the designated parts must be used.
7. PERFORM A SAFETY CHECK AFTER SERVICING
Confirm that the screws, parts and wiring which were removed in order to service are put in the original positions, or whether there are the portions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades. And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
4. PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING
There are parts which use the insulation material such as a tube or tape for safety, or which are assembled in the condition that these do not contact with the printed board. The inside wiring is designed not to get closer to the pyrogenic parts and high voltage parts. Therefore, put these parts in the original positions.
5. TAKE CARE TO DEAL WITH THE CATHODE-RAY TUBE
In the condition that an explosion-proof cathoderay tube is set in this equipment, safety is secured against implosion. However, when removing it or serving from backward, it is dangerous to give a shock. Take enough care to deal with it.
1. Unplug the plug from the AC outlet. 2. Remove the antenna terminal on TV and turn on the TV. 3. Insulation resistance between the cord plug terminals and the eternal exposure metal [Note 2] should be more than 1M ohm by using the 500V insulation resistance meter [Note 1]. 4. If the insulation resistance is less than 1M ohm, the inspection repair should be required.
[Note 1]
If you have not the 500V insulation resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal
HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the VERSION LETTER.) 1. MODEL NUMBER and VERSION LETTER The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be found at the end of the SERIAL NUMBER. 2. PART NO. and DESCRIPTION You can find it in your SERVICE MANUAL.
IMPORTANT
Inferior silicon grease can damage IC's and transistors. When replacing an IC's or transistors, use only specified silicon grease (YG6260M). Remove all old silicon before applying new silicon.
A1-1
CONTENTS
SERVICING NOTICES ON CHECKING ...................................................................................................... HOW TO ORDER PARTS ............................................................................................................................ IMPORTANT ............................................................................................................................................... CONTENTS ................................................................................................................................................. GENERAL SPECIFICATIONS ..................................................................................................................... DISASSEMBLY INSTRUCTIONS ................................................................................................................ SERVICE MODE LIST ................................................................................................................................ CONFIRMATION OF USING HOURS ......................................................................................................... NOTE FOR THE REPLACING OF MEMORY IC ........................................................................................ ELECTRICAL ADJUSTMENTS ................................................................................................................... MAJOR COMPONENTS LOCATION GUIDE ............................................................................................. BLOCK DIAGRAM ...................................................................................................................................... PRINTED CIRCUIT BOARDS MAIN/CRT........................................................................................................................................... SCHEMATIC DIAGRAMS MICON/TUNER ................................................................................................................................. CHROMA ........................................................................................................................................... DEFLECTION/CRT ............................................................................................................................ POWER ............................................................................................................................................. SOUND .............................................................................................................................................. WAVEFORMS ............................................................................................................................................. MECHANICAL EXPLODED VIEW .............................................................................................................. MECHANICAL REPLACEMENT PARTS LIST ........................................................................................... ELECTRICAL REPLACEMENT PARTS LIST ............................................................................................
A1-1 A1-1 A1-1 A2-1 A3-1~A3-4 B-1, B-2 C-1 C-1 C-1 D1-1~D2-1 D3-1 E-1, E-2 F-1~F-4 G-1, G-2 G-3, G-4 G-5, G-6 G-7, G-8 G-9, G-10 H-1, H-2 I-1 J1-1 J2-1, J2-2
A2-1
GENERAL SPECIFICATIONS
G-1.Outline of the Product 25 inch( 626 mmV):Measured diagonally Color CRT 100 degree deflection G-2.Broadcasting System US G-3.Color System System NTSC M PAL SECAM or Monochrome signal Yes Yes No No
G-4.NTSC Playback(PAL 60Hz) G-5.NTSC 3.58+4.43/PAL60Hz G-6.Antenna Input Impedance VHF/UHF 75 ohm unbalanced G-7.Tuner and Receiving channel Tuner
Contactless Electric tuner Oscar(W/O HYPER) France CATV) 4A , A-5~A-1 , Voltage syn. A~I ,
1Tuner System 2Tuner System Oscar(W/ HYPER) Others J~W , W+1~W+84
Receiving channel (USA) 2-69 , Tuning System Frequency syn. G-8. reset Channel P -- channels G-9.Intermediate Frequency Picture(fP) Sound (fS) fP-fS G-10.Stereo/Dual TV Sound Yes( NICAM G-11.Tuner Sound Muting G-12. ower Source P G-13. ower Consumption: P (Approx.) Stand by: Per Year: G-14.Dimensions(Approx.) 618 mm(W) G-15.Weight(Approx.) G-16.Cabinet Material Cabinet Front: 110
Others
45.75 MHz 41.25 MHz 4.50 MHz GERMAN Yes 120 V 120 120
MHz MHz MHz USA No AC 50Hz V V V 60 Hz 60 Hz JAPAN)
MHz MHz MHz No
AC 60Hz
W at AC W at DC 4 W at AC - kWh / Year
504 mm(D) Net : Gross: 27 29 PS ABS PS ABS
525 mm(H) kg ( 59.9 lbs) kg ( 64.3 lbs) 94HB 94V2 94V0 94HB 94V2 94V0 DECABROM NON-DECA DECABROM NON-DECA
Back Panel:
A3-1
GENERAL SPECIFICATIONS
G-17. rotector: P G-18.Regulation Safety UL BS SEMKO NOM Radiation FCC SABA CNS X-Radiation PTB G-19.Temperature Operation Storage G-20.Operating Humidity G-21.Clock and Timer Sleep Timer On/Off Timer Wake Up Timer Power Fuse
CSA NF NZ AS3159 DOC SI CISPR13 DHHS 5 -20
SAA NEMKO HOMOLO DENTORI FTZ NF DENTORI HWC
SI FEMKO SABS UNE PTT NZ AS/NZS DENTORI
CE DEMKO CNS GOST CE HOMOLO NONE NONE
SEV IEC65 SISIR NONE SEV UNE
ºC~ 40 ºC ºC~ 60 ºC Less than 80 %RH 10 Min. Step) No No No
Yes Max 120 Min.( Yes Programs Yes Programs
G-22.Timer back up Time More than -- Minutes (at Power Off Mode) G-23.Terminals VHF/UHF Antenna Input Front Video Input (RCA ø8.3) Rear Video Input (RCA ø8.3) Rear Video Output (RCA ø8.3) Front Audio Input (RCA ø8.3) Rear Audio Input (RCA ø8.3) Rear Audio Output (RCA ø8.3) 21 Pin Head Phone Jack(ø3.5) Diversity G-24.Indicator ( Power ) ( Stand By ) ( On Timer ) NONE Din Type F-Type France Type
DC Jack(Center +) AC Outlet S Input(Front)
Ear Phone Jack(ø3.5) Ext Speaker S Input(Rear)
G-25.Display On Screen Display Menu Clock Set( 12H 24H) Hotel Lock Sound 1/2 Guide CH Set CATV Control Level Sound Color Tuning Balance Stereo,Audio Output,Bilingual Stereo,Audio Output, SAP Stereo,Audio Output A V Channel Sleep Timer Sound Mute
A3-2
System Selec Area Code NICAM Auto Off Audio Pin Code Registration Brightness Tint(NTSC Only) Bass Back Light Picture Menu Mid Night Theater GAME Clock Pin Code
On/Off Timer CH Tuning Picture Language V-Chip Contrast Sharpness Treble
Hotel Lock
GENERAL SPECIFICATIONS
G-26.OSD Language Eng Ger Fre Fre Spa Spa Ita Ita Por Por Jpn Jpn
OSD Language Setting Eng Ger Not Applicable G-27.Speaker P osition Size Imp. Power G-28.EXT Speaker Yes
Front Side Bottom 1.5 x 2.7 inches 4 ohm x 2 pcs Max 075 + 0.75 W 10% 0.5 + 0.5 W (Typical) -W Imp -ohm
G-29.Carton Master Carton: Need No Need Content: ---- Set Material: ---- / ---Corrugated Carton Dimensions: ---- mm(W) ---- mm(D) ---- mm(H) Description of Origin Yes No Gift Box Material Double/Brown Corrugated Carton ( with Photo Label) Double/White Corrugated Carton ( with Photo Label) Double Full Color Carton W/Photo Dimensions: 689 mm(W) 577 mm(D) 620 mm(H) Design: As Per BUYER 's Description of Origin: Yes No Drop Test Natural Dropping At 1 Corner / 3 Edges / 6 Surfaces Height 25cm 31cm 46cm 62cm Container Stuffing: 204 Sets / 40' container
80cm
G-30.Accessories Owner's Manual ( W/Guarantee Card) [ English/Spanish ] AC Plug Adapter Channel Film Battery (UM- 4 x 2 ) Remote Control Unit Safety Tip Toll Free Insert Sheet Guarantee Card Audio-Video Cord (RCA) Registration Card Warning Sheet Quick Set-Up Sheet Schematic Diagram Information Sheet U/V Mixer 75 ohm Coaxial Cable ( Single Shield Double Shield) 300 ohm to 75 ohm VHF Antenna Adaptor 21pin Cable Car Cord Rod Antenna One Pole Two Pole ( F-Type Din Type France Type) Loop Antenna ( F-Type Din Type France Type) G-31.Other Features Auto Degauss Auto Shut Off Canal+ CATV(181CH) Anti-Theft Rental Unitext Picture Menu Auto Search CH Allocation SAP Channel Lock Just Clock Function Game Position TopText Mid Night Theater
A3-3
Full OSD Premiere Comb Filter Auto CH Memory Hotel Lock Fastext Closed Caption V-Chip
GENERAL SPECIFICATIONS
G-32.Switch Front Power(Tact) System Select Main Power SW Rear AC/DC Degauss G-33.Magnetic Field BV : BH : BV : BH : +0.45G 0.18G -0.15G 0.15G TV/CATV Selector Main Power SW BV BH BV BH : : : : +0.35G 0.30G -0.25G 0.15G BV BH BV BH No : : : : +0.25G 0.30G -0.50G 0.30G Channel Up/Reset Channel Down/Enter Sub Power Volume Up/Set Up Volume Down/Set Down Menu:Vol UP + Vol Down
G-34.Remote Control Unit: RC- 74 Glow in Dark Remocon Yes Power Source: D.C 3 V Battery UM - 4 x 2 Total 26 Key Power Quick View Stand By Status 0 Time Select 1 Time Set 2 Muting 3 CH Skip 4 CH1/CH2 5 Channel 6 Text/Mix/TV 7 Display Cancel 8 Initial 9 Store 10 Reveal 11 Sleep 12 Aft/Skip 1 Preset 2 5.5/6.5MHz 0/10 Auto Memory Tone 1/2 Auto Info Call Mono/Auto Reset TV/Caption/Text Menu Expand Enter Red Add Cyan Delete Normal Yellow Color System Random Wide Selecy Tuning Up/Time Text Auto Wide On/Off Tuning Down/Reset Picture Position Navi Direct Change/Auto Search Back Light Picture Menu Mid Night Theater
TV/A V Bar Select PAL/SECAM Volume Up Volume Down CH Call CH Down CH Up CH Down/Page Down CH Up/Page Up Page +/Program F/T/B Hold List Rotate Browse Std/Auto Memory Band Select Search Clock/Program Clock/Set Ch Set Set + Set Green Nicam/Mono Tone A/B FM Transmitter Audio Select
A3-4
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF ANODE CAP
Read the following NOTED items before starting work. * After turning the power off there might still be a potential voltage that is very dangerous. When removing the Anode Cap, make sure to discharge the Anode Cap's potential voltage. * Do not use pliers to loosen or tighten the Anode Cap terminal, this may cause the spring to be damaged. REMOVAL 1. Follow the steps as follows to discharge the Anode Cap. (Refer to Fig. 1-1.) Connect one end of an Alligator Clip to the metal part of a flat-blade screwdriver and the other end to ground. While holding the plastic part of the insulated Screwdriver, touch the support of the Anode with the tip of the Screwdriver. A cracking noise will be heard as the voltage is discharged. 3. After one side is removed, pull in the opposite direction to remove the other. NOTE Take care not to damage the Rubber Cap. INSTALLATION 1. Clean the spot where the cap was located with a small amount of alcohol. (Refer to Fig. 1-3.)
Location of Anode Cap
GND on the CRT
Fig. 1-3 NOTE Confirm that there is no dirt, dust, etc. at the spot where the cap was located. 2. Arrange the wire of the Anode Cap and make sure the wire is not twisted. 3. Turn over the Rubber Cap. (Refer to Fig. 1-4.) Screwdriver CRT Support Alligator Clip GND on the CRT Fig. 1-1
2. Flip up the sides of the Rubber Cap in the direction of the arrow and remove one side of the support. (Refer to Fig. 1-2.) Rubber Cap Fig. 1-4
CRT Support Fig. 1-2
B-1
DISASSEMBLY INSTRUCTIONS
4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 1-5.
CRT
Support Fig. 1-5
5. Confirm that the Support is securely connected. 6. Put on the Rubber Cap without moving any parts.
2. REMOVAL OF DEFLECTION YOKE
(Refer to Fig. 2-1) 1. Loosen the screw 1. 2. Remove the Convergence · Purity Magnet in the direction of arrow (A). 3. Loosen the screw 2. 4. Remove the 3 Wedges. 5. Remove the Deflection Yoke in the direction of arrow (B).
2 Wedge (B) (A) 1
Convergence · Purity Magnet Deflection Yoke Wedge Fig. 2-1 INSTALLATION Install new Deflection Yoke in reverse steps of REMOVAL. NOTE After adjusting the purity and the convergence, fix the screw 2 and lock the wedges.
B-2
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter the Service Mode, press both set key and remote control key for more than 1 second. Set Key VOL. (-) MIN VOL. (-) MIN Remocon Key 0 1 Releasing of V-CHIP PASSWORD. Initialization of the factory. NOTE: Do not use this for the normal servicing. POWER ON total hours is displayed on the screen. Refer to the "CONFIRMATION OF USING HOURS". VOL. (-) MIN 6 Can be checked of the INITIAL DATA of MEMORY IC. Refer to the "NOTE FOR THE REPLACING OF MEMORY IC". VOL. (-) MIN 8 Writing of EEPROM initial data. NOTE: Do not use this for the normal servicing. Display of the Adjustment MENU on the screen. Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment). Operations
VOL. (-) MIN
9
CONFIRMATION OF USING HOURS
POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation. 1. Set the VOLUME to minimum. 2. Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second. 3. After the confirmation of using hours, turn off the power.
ADDRESS DATA
INIT CRT ON
00
83 0010
Initial setting content of MEMORY IC. POWER ON total hours.
= (16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)
FIG. 1
NOTE FOR THE REPLACING OF MEMORY IC
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. ADDRESS DATA INI 00 A0 INI 01 5A INI 02 A2 INI 03 39 INI 04 02 INI 05 63 INI 06 24 INI 07 38 INI 08 A1 INI 09 21 INI 0A 44
Table 1 1. Enter DATA SET mode by setting VOLUME to minimum. 2. Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second. ADDRESS and DATA should appear as FIG 1. 3. ADDRESS is now selected and should "blink". Using the SET + or - keys on the remote, step through the ADDRESS until required ADDRESS to be changed is reached. 4. Press ENTER to select DATA. When DATA is selected, it will "blink". 5. Again, step through the DATA using SET + or - until required DATA value has been selected. 6. Pressing ENTER will take you back to ADDRESS for further selection if necessary. 7. Repeat steps 3 to 6 until all data has been checked. 8. When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input. The unit will now have the correct DATA for the new MEMORY IC.
C-1
ELECTRICAL ADJUSTMENTS
1. BEFORE MAKING ELECTRICAL ADJUSTMENTS
Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies. CAUTION · Use an isolation transformer when performing any service on this chassis. · Before removing the anode cap, discharge electricity because it contains high voltage. · When removing a PCB or related component, after unfastening or changing a wire, be sure to put the wire back in its original position. Inferior silicon grease can damage IC's and transistors. · When replacing IC's and transistors, use only specified silicon grease (YG6260M). Remove all old silicon before applying new silicon. Prepare the following measurement tools for electrical adjustments. 1. Synchro Scope 2. Digital Voltmeter On-Screen Display Adjustment 1. In the condition of NO indication on the screen. Press the VOL. DOWN button on the set and the channel button (9) on the remote control for more than 1 second to appear the adjustment mode on the screen as shown in Fig. 1-1.
2. BASIC ADJUSTMENTS
2-1: RF AGC DELAY 1. Receive an 64dB monoscope pattern. 2. Connect the digital voltmeter to TP001. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (02) on the remote control to select "RF AGC". 4. Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 3.00 ± 0.05V. 2-2: CUT OFF 1. Adjust the unit to the following settings. R.DRIVE=10, B.DRIVE=10, R.BIAS=64, G.BIAS=64, B.BIAS=64, BRIGHTNESS=135, CONTRAST=100. 2. Place the set with Aging Test for more than 15 minutes. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (01) on the remote control to select "CUT OFF". 4. Adjust the Screen Volume until a dim raster is obtained. 2-3: FOCUS 1. Receive the monoscope pattern. 2. Turn the Focus Volume fully counterclockwise once. 3. Adjust the Focus Volume until picture is distinct. 2-4: WHITE BALANCE NOTE: Adjust after performing CUT OFF adjustment. 1. Place the set with Aging Test for more than 15 minutes. 2. Receive the color bar pattern. 3. Using the remote control, set the brightness and contrast to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (10) on the remote control to select "R.BIAS". 5. Using the VOL. UP/DOWN button on the remote control, adjust the R.BIAS. 6. Press the CH. UP/DOWN button on the remote control to select the "R.DRIVE", "B.DRIVE", "G.BIAS" or "B.BIAS". 7. Using the VOL. UP/DOWN button on the remote control, adjust the R.DRIVE, B.DRIVE, G.BIAS or B.BIAS. 8. Perform the above adjustments 6 and 7 until the white color is looked like a white. 2-5: SUB TINT/SUB COLOR 1. Receive the color bar pattern. (RF Input) 2. Connect the synchro scope to TP024. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (16) on the remote control to select "TINT". 4. Press the VOL. UP/DOWN button on the remote control until the waveform becomes as shown in Fig. 2-1. 5. Connect the synchro scope to TP022. 6. Press the CH DOWN button once to set to "COLOR" mode. 7. Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 110% of the white level. (Refer to Fig. 2-2) 8. Receive the color bar pattern. (Audio Video Input) 9. Press the TV/AV button on the remote control to set to the AV mode. Then perform the above adjustments 2~7.
TV
00 OSD
15 Fig. 1-1
2. Use the channel UP/DOWN button or channel button (0-9) on the remote control to select the options shown in Fig. 1-2. 3. Press the MENU button on the remote control to end the adjustments. NO. 00 01 02 03 04 05 06 07 08 09 10 11 12 FUNCTION OSD H CUT OFF RF AGC VIF VCO H VCO H PHASE V SIZE V SHIFT R DRIVE B DRIVE R BIAS G BIAS B BIAS NO. 13 14 15 16 17 18 19 20 21 22 23 24 FUNCTION BRIGHTNESS CONTRAST COLOR TINT SHARPNESS FM LEVEL LEVEL SEPARATION 1 SEPARATION 2 TEST MONO TEST STEREO X-RAY TEST Fig. 1-2
D1-1
ELECTRICAL ADJUSTMENTS
TV
Fig. 2-1 00 OSD A 0% 2-10: VERTICAL VCO 110% 1. Place the set with Aging Test for more than 15 minutes. 2. Receive an 80dB monoscope pattern. 3. Connect the digital voltmeter between the pin 5 of CP601. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (03) on the remote control to select "VIF VCO". 5. Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.5V. 2-11: CONSTANT VOLTAGE 1. Connect the digital voltmeter to TP402. 2. Adjust the VR502 until the digital voltmeter is 130 ± 0.5V. 15 B
Fig. 2-3
100% Fig. 2-2 2-6: VERTICAL SHIFT 1. Receive the color bar pattern. 2. Activate the adjustment mode display of Fig. 1-1 and press the channel button (07) on the remote control to select "V.SHIFT". 3. Press the VOL. UP/DOWN button on the remote control until the horizontal line of the color bar comes to approximate center of the CRT. 2-7: VERTICAL SIZE 1. Receive the crosshatch pattern. 2. Activate the adjustment mode display of Fig. 1-1 and press the channel button (06) on the remote control to select "V.SIZE". 3. Press the VOL. UP/DOWN button on the remote control until the center of crosshatch is square. 2-8: HORIZONTAL PHASE 1. Receive the color bar pattern. 2. Activate the adjustment mode display of Fig. 1-1 and press the channel button (05) on the remote control to select "H.PHASE". 3. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes minimum. 2-9: OSD HORIZONTAL 1. Activate the adjustment mode display of Fig. 1-1. 2. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-3)
D1-2
ELECTRICAL ADJUSTMENTS
3. PURITY AND CONVERGENCE ADJUSTMENTS
NOTE 1. Turn the unit on and let it warm up for at least 30 minutes before performing the following adjustments. 2. Place the CRT surface facing east or west to reduce the terrestrial magnetism. 3. Turn ON the unit and demagnetize with a Degauss Coil. 3-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT) 1. Tighten the screw for the magnet. Refer to the adjusted CRT for the position. (Refer to Fig. 3-1) If the deflection yoke and magnet are in one body, untighten the screw for the body. 2. Receive the green raster pattern from the color bar generator. 3. Slide the deflection yoke until it touches the funnel side of the CRT. 4. Adjust center of screen to green, with red and blue on the sides, using the pair of purity magnets. 5. Switch the color bar generator from the green raster pattern to the crosshatch pattern. 6. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. 7. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets. 8. Adjust the crosshatch pattern to change to white by repeating steps 6 and 7. 3-2: PURITY NOTE Adjust after performing adjustments in section 3-1. 1. Receive the green raster pattern from color bar generator. 2. Adjust the pair of purity magnets to center the color on the screen. Adjust the pair of purity magnets so the color at the ends are equally wide. 3. Move the deflection yoke backward (to neck side) slowly, and stop it at the position when the whole screen is green. 4. Confirm red and blue colors. 5. Adjust the slant of the deflection yoke while watching the screen, then tighten the fixing screw. DEFLECTION YOKE DEFLECTION YOKE SCREW MAGNET SCREW 3-3: STATIC CONVERGENCE NOTE Adjust after performing adjustments in section 3-2. 1. Receive the crosshatch pattern from the color bar generator. 2. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. 3. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets. 3-4: DYNAMIC CONVERGENCE NOTE Adjust after performing adjustments in section 3-3. 1. Adjust the differences around the screen by moving the deflection yoke upward/downward and right/left. (Refer to Fig. 3-2-a) 2. Insert three wedges between the deflection yoke and CRT funnel to fix the deflection yoke. (Refer to Fig. 3-2-b) RGB RGB
R G B
R G B RIGHT/LEFT SLANT
UPWARD/DOWNWARD SLANT Fig. 3-2-a
WEDGE
WEDGE
WEDGE WEDGE POSITION Fig. 3-2-b
PURITY MAGNETS 6 POLE MAGNETS 4 POLE MAGNETS Fig. 3-1
D2-1
MAJOR COMPONENTS LOCATION GUIDE
VR502
TU001
TP402
TP001 CP601
FB401
FOCUS VOLUME SCREEN VOLUME
MAIN PCB
J801 TP022 TP024
CRT PCB
D3-1
BLOCK DIAGRAM
Q351 MUTE SW. AGC BTL SDA SCL BPL
CH UP VOL UP CH DOWN VOL DOWN
POWER 27 KEY1 MICON IC IC101 OEC7045A 5 AUDIO MUTE 26 KEY2 CVIN 17 RED R 42 GREEN G 41 BLUE B 40 OS101 1 2 3 36 POWER Q602 HV. SWITCH Q607 H. SWITCH 19 XIN X101 CST8.00MTW-TF01 20 XOUT DEGAUSS_H 35 X_RAY_TEST 30 H. SYNC V. SYNC 1 2 BLANK BL 39 10 REMOCON
TU001 X602 3.579545MHz IF
CHROMA IC IC601 M61203CFP 32 X' TAL AUDIO OUT 50
SOUND AMP IC IC351 AN7523 6 9 2 SP351 4 Q606 REG OUT 33 R OUT 14 G OUT 15 B OUT 16 REG OUT 41 Q603 5V REG REG Q801 RED OUT Q803 GREEN OUT Q802 BLUE OUT AT+10V
9
7
11
5
4
1
CF601 SAW FILTER
62 RF AGC OUT 64 VIF IN (1) 1 VIF IN (2)
40 Y SW OUT 30 R IN 28 G IN 20 B IN 27 FAST BLK Q604, Q605 5V REG
39 5V REG
12 INV FBP OUT 29 V PULSE OUT 5 SCL 10 SDA 42 MCU RESET
FBP IN
6 AT+5V
Y IN 36 H OUT 7 Q402 H. DRIVE Q401 H. OUTPUT THERMAL PROTECTION
SCL1 34 SDA1 32 RESET 25 MEMORY IC 5 6 SDA SCL IC199 S-24C02BDP-1A
VREG VCC 55 VIF VIDEO OUT 57
17 V OUT
Q101
X-RAY TEST SW
Q609 V. SWITCH TH501 Q504 RY501 RELAY F501 AC IN D501~D504 RECTIFIER IC506 TLP621(D4-GR-LF2) FEED BACK 5 1 T501 7 3 RELAY DRIVE Q403 X-RAY TEST SW. 7
PUMP UP AMP + VCC
11 B Heater 10
6 G
8 R CRT
L503 DEGAUSS COIL
F
9
3
2
6
5 V-OUT IC IC401 LA78041
VR502 +B ADJ
Q507 FEED BACK SW.
DY 14 12 FB401
SW REG. IC IC501 STR-G6624
AT+10V Q601 5V REG
3 1 5 10 2
9 F S HV
E-1
E-2
PRINTED CIRCUIT BOARDS MAIN/CRT (INSERTED PARTS)
SOLDER SIDE
SW105 SW104 SW103 SW102 SW101 Q801 D606 D610 D609 OS101 W082 W029 W083 R802 R803
FH501
FH502 W038
R134
D199
W028
R131
R631
W041 W043 R804 Q802
R805
W031
W810
W122
W026
C613
C530
F501
6.3A125V
C123 S103Y
W030
W023 X101 CP501 C506 W070 R500 CP502 D501 R501 W112
R542
R641 W034
C6 55 _1
W116 D608 W133 C603 W120
R807 L801
W039
C612
C124_1
C122
W086
C610 W085
W123
W826 R651 W033
R806 CC004 C601 Q803
C118
W809
C645 C614
C638
L101
C622
W025 W024
W087 W802 W128
W019 W020
L605 CF601 W833
CP802B
CP803B
X602
R135
W127 C115 C130
C625
S104Y R515 Q504 W022 W021 C630
C640
C505 L501
R517
C606
W129 Q605 C635 C627 C644
L601_1
C624
L607
D601
Q603 W055 W827 W018 W054 W099 W817 IC199 W126
C604 L606
C656
C619 L608 W125 W027
Q604 Q601
01 J8
C658 C802_1
W818
C605
C647
R523
W136
S801Y W096 C518
R632 W135
CF604 W045 W035 R612 D602
D516
C502 D502 C503 C532 R506 D518 IC506 VR502 R514 Q507 Q401 C443 W004 D528 FB401 D410 D503 D504 B502 TH501 RY501 R502 D506
CP351_1 C531 W828
R623 W056 W036 W044
W037
CP806
W090
R650
C632
W047
CF603 Q606
D514
W838 CC006
D607
W094
S801X
W836 R354
R5 05
W071 D521
C510
C501
W059 W829
C352 C360 W858 W119
CP801
W095
W121
C514
T501 S103X S102Y IC351_1 W001 B504
W835 S104X
C507 W073 HS501 R543
B505 W072 D515 IC501 W820 R503 R554 HS401 R427 C437_1 W005 W002 D408 W006 R422 C448 C401_1 D405 W003 L406 W814 C404 D407 C406 R428 S101Y C433 C416 R408 W012 R429 R421 C410 R445 C435 R409 W007 D411 CP802A W089 W117 CP803A W812 T401 C517 D510 R440 C521_2 S101X
W813 W825 W124 W060
W130 W091
C353_1 C439 C446 Q402 C440 W093 S102X R446
R407
R434
C417_1
W111
R417_1 W053 IC401
C418 R418_2 R419 W065
R415 W052 C430
W115
R420_1
W074
3 84 W
CP401_1
W051 W138 C414 C427 W103 W010 R001 D403 R414 R416 R405 R401 R424 C434 W009 W042 D402 W137 D001 W108
W081
D401 W015 W013 C002 TU001
W088 TP001 C003 D605 CP601
F-1
F-2
F-3
R816 C806 R814 R813 C804 R809 C805 R811 C807 C801 R815 R110 R603 C623_2 R618 R606 R622 R621 R615 R006 C004 C001 R007 R128 R126 R114 R626 R604 R605 C607 C621 R609 C626_1 C618 1 R611 R634 C654 R101 R648_1 R614 R619 R625 IC601 R639 C616 R633 C661 R647 R642 R646 C651 Q602 17 49 C636 R652 R635 33 C650 C408_1 R355 C363 R644 R628 Q351 W837 R629 R638 R124 R104 R120 C101 C117_1 C116_1 R356 R106 R119 IC101 R121 R123 R105 R109 R116 R636 C103 C121 R133 R115 C125 R130 C120_1 C129_1 C119 C113 C114 R404 R406 R358 R122 R103 R102 R129 R107 R117 R113 R112 Q607 R630 R627 R111 R624 C639 R613 C634 R602 R601 C637 Q101
PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS)
SOLDER SIDE
Q609
Q403
R553 C554_1 C515_1 C512_1 R532 R533
F-4
A
B
C
D
E
F
G
H
MICON/TUNER SCHEMATIC DIAGRAM
8
(MAIN PCB)
TU001
15
8
ACCESSORY
TECC1040PG32D 3 ADRES 1 AGC 4.6 7 BPL 5 SDA 9 BTL 4 SCL 6 V.S
13 12
11 IF
10
14
0.0 NC
0.0 NC
8
NC
30.0
1.3 NC 6.2 NC
0.0
5.0
5.0
5.0
2
6.3V 470 YK
TM101 R25-1127
AGC TP001 JWF-50K-1
270
7
0.022 F D001 HZ30-3L C004
270
7
0.01
F
R006
R007
C001
C002
FROM/TO CHROMA C003 AGC 50V 4.7 KA TUNER+5V
R001 68K 1W
IF
SYNC
6
2
I2C_OFF Y_VIDEO VD R110 1K MICON IC IC101 OEC7045A 42 1 4.9 4 41 2 4.9 P51/V.SYNC P00/EXT MUTE P01/I2C_OFF P02/AUDIO MUTE P03/(Surround) P04 GREEN G BLUE B 0 0 0 0 NC 0 NC 0 0 4.9 NC 0 5.0 NC 0 0 0 R107 15 HLF V.HOLD CVIN CNVSS Xin Xout VSS AD4/AFT AD5/KEY1 AD6/KEY2 28 3.0 C121 C120_1 0.001 Y R133 1.5K C129_1 R129 680K 0.8 3.4 220P B 0 3.2 4.9 R112 4.9 4.9 3.6 2.7uH 2.7K L101 2.2K R113 TF VOL UP SW103 SKHVBED010 CH DOWN SW102 SKHVBED010 VOL DOWN SW104 SKHVBED010 2.2K C115 C114 POWER SW105 SKHVBED010 10K +B C130 220P B 16.0 0 R105 3.3K R114 220 POWER AT+5V 35 8 0 P05/(Center_SP) P10/DEGAUSS_H INT2/P.FAIL INT1/REMOCON P23/SYNC P24 AFT SCL SDA RESET P50/H.SYNC RED R 0 HD 3 R123 R122 R121 R120 4.7K 4.7K 4.7K 4.7K R102 2.2K R103 R104 2.2K 2.2K R124 4.7K OSD_R OSD_G OSD_B OSD_BLK GND
6
R109 4.7K R116 0.1 OS101 PIC-28143SY-2 1 Vout 3 GND 47K R117 4.7K 2 B+ C103 F
5
OUT1/BLANK BL P20/AV2 P21/AV1 P22/POWER
C125 C123 16V 10 KA 0.01 R131 47 F R134 10K 1/4W
SCL1 SCL2
34
9
4.8 4.8
36
7
0
37
6
0
38
5
0
39
4
4.9
40
3
0
5
C117_1 33 47P SL R106 3.3K R111 C116_1 47P SL
4
10
R115 11 32 3.9 47K D199 MTZJ6.2B NC 0 NC 0 4.9 C122 R130 1K SDA1 SDA2
4
FROM/TO DEFLECTION/CRT R119 220 1K W827 X-RAY X-RAY_TEST
12
31
P25/ON_TIMER AD1/X_RAY_TEST AVCC X-RAY
X-RAY TEST SW Q101 DTC114TKA 0
13
30
FROM/TO POWER DEGAUSS_H
14
50V 1 KA
29
16
27
200P SL
R101
560
R126 2.7K
GND
3
C124_1 50V 0.1 KANP
17
26
R128
560 CH UP SW101 SKHVBED010
3
RESET OSC1 OSC2 VCC
25
18
1 19 24 R135 3.7 1 2 4.2 0
15P CH C113 15P CH
20
23
3
X101 CST8.00MTW-TF01
4.1 4.9
0.68
TO SOUND C101 0.022 F 5.0 SDA 5.0 5 6 SCL 0.0 MODE 7 8 VCC MEMORY IC IC199 S-24C02BDP-1A 5.0 AUDIO_MUTE
21
C119
2
C118 6.3V 470 YK
22
0.1
F
2
VSS
E2
4 0.0 0.0
3 0.0
E1 2 0.0
E0 1
CAUTION: DIGITAL TRANSISTOR
PCB010 TMX458
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARE
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
TUNER VIDEO SIGNAL R.SIGNAL G.SIGNAL B.SIGNAL DEFLECTION SIGNAL
G H
1
A
B
C
D
E
F
G-1
G-2
A
B
C
D
E
F
G
H
CHROMA SCHEMATIC DIAGRAM
(MAIN PCB)
8
FROM POWER
8
5V REG Q601 2SD734 7.6 5.6 5V REG Q604 2SD734 4.97 5V REG Q605 2SD734 4.97
AT+10V
4.97 6
120 1/4W
R623
5.6
7.6 7.6
5.6
C627 50V 1 KA
R647
7
220
50V 1 KA 0.015 M
8.2 8.8 R639 100 C619
15.0 REG Q606 2SD734 50V 22 KA
7
5V REG Q603 2SD734
10.6
CF604 EFCT4R5MW5 L607 15uH R636 10V 100 YK C635 10V 47 KA C614 47 KA 47 KA 47 KA 10K 5.5 C644
C625
R622 270
10V
10V
10V
8.2K C622
R633
C630
C640
R628
R635 100
100 R629
100
R652
C616
0.01 B
C656 100P B
L606 2.2uH
C636
C650 220P CH
3.579545MHz
D607 X602 1SS133 0 0 38 37 VIDEO/CHROMA GND 2.9 3.3 2.0 8.8 36 35 34 33 CHROMA APC FILTER TV/Y IN 32 3.5 2.6 0 5.0 0 0 7.3 0 NC 5.0 5.0
6
TO SOUND 5 STEREO+5V AUDIO_OUT R611 C623_2 0.0033 B C632 R612 5.6K 1/4W R634 10K
W818
L608
C661 R646
0.01 F 12K C638 50V 4.7 KANP
270 1/4W
7 R644
R638 6.8K
6.8uH
CF603 SFSH4.5MCB
15P CH
R615 470 1.8K
100
C647 50V 1 KA
R650
47P CH
4.8
C651
2.9 48 49 2.3 3.0
2.3
NC 0 47 46
8.2 8.2 3.9 4.8 5.5 3.4 0 45 44 43 42 41 40 39 INTELLIGENT MONI MCU RESET 5.7V REG OUT(FOR CPU) Y SW OUT 5v REG Hi Vcc
6
R642 33K
D605 11E1-EIC
50
AUDIO OUT AUDIO BYPASS EXT AUDIO IN FM DIRECT OUT VIF VCO F/B VREG Vcc VIF APC FILTER VIF VIDEO OUT VIF GND
ACL/ABCL R IN V PULSE OUT
C604 10K 50V 1 KA C658 0.001 B
51
52
53
50V 2.2 KA
54
5
R632 100 1/2W
R618
10M 9.2 1SS133 MTZJ8.2B C624 16V 47 YK C605 3.0 330 50V 0.47 KA C618 2.6 0 0 0 C626_1 2.9 1.8 C606 SAW FILTER 50V 0.1 KA CF601 SAF45MFY220ZR IN IN G OUTOUT 1 2 3 4 5 2.9 1.8
FAST BLK SPOT KILLER fsc OUT
27
3.1
55
26
46 SW REG CONT 47 LIMITER IN 48 IF AGC 49 QIF OUT
34 EXT C in 33 8.7V REG OUT 32 X'TAL
28
3.8
G IN
29
NC
30
2.3
31
C610 C645 50V 0.22 KA
5
56
D601 D602
25
22P CH
58
R609
VIDEO CHROMA Vcc V RAMP CAP
23
CHROMA IC IC601 M61203CFP
57
24
6.3V 47 KA
59
C621 W817
0.01
F
22
5.6 2.5 0 8.2 R641 22K +-1%
C613 1 TF
60
AFT OUT QIF IN RF AGC OUT INV FBP OUT AFC FILTER H VCO F/B RF AGC FILTER VIF Vcc 64 VIF IN (1) 1 VIF IN (2) 17 V OUT 16 B OUT POWER ON CONT
V RAMP FEEDBACK B IN STRAT UP Vcc
21
61
4
R606 10K
0.001
Y
20
FROM/TO DEFLECTION/CRT
FBT+8V 18 8.2 10 17 4.5 10V 470 YK D610 MTZJ6.8B C612 R648_1 100 V_OUT ABCL V_FEEDBACK GND R OUT G OUT
4
62
63
FBP IN
SCL
H OUT
64
DEF
1 1.5 5.0 0.01 F
2 5.0
3 2.7
4 4.9
5 6.2 C654
6 6.2 220P CH R601
7 0 2.2K
8
10 11 12 13 14 15 16 9 0 4.9 3.5 4.9 4.9 4.0 4.0 4.8 11 12 13
0.01 B
1uH R621
2.2K
C634
L601_1 L605 1.2uH
C639
9 R626 C603 50V 1 KA
SDA
19
H_OUT 10K 3.3K H_SYNC R627 R630 R631 2.2K 2.2K 2.2K 100 100 100 1/4W MTZJ6.8B MTZJ6.8B MTZJ6.8B 3.6 0 0 0 4.9 4.9 0 HV.SWITCH Q602 DTA144EKA 0 0 H.SWITCH Q607 DTC114EK V.SWITCH Q609 DTC114EK W826 B.OUT G.OUT R.OUT CLAMP TEST POINT CP601 TKC-M06X-A1 B.OUT INT.MONI IIC_OFF SDA SCL GND 6 5 4 3 2 1
R624
2K
R603
0.01 F
6.3V 2200 YK
IF Y_VIDEO AT+5V SYNC TUNER+5V RESET AFT AGC GND
W810
R614
R619
R625
W833
C655_1 50V 10 YK
C637 0.01 F
R604 100
C601
R613
R602
100
1K
R605 8.2K
C607
R651
3
1.5K
FROM/TO MICON/TUNER
8
3
D609
D608
2
HD POWER OSD_B OSD_BLK OSD_G VD OSD_R I2C_OFF SDA SCL
D606
2
1
R.SIGNAL G.SIGNAL B.SIGNAL TUNER VIDEO SIGNAL DEFLECTION SIGNAL AUDIO SIGNAL
PCB010 TMX458
NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
CAUTION: DIGITAL TRANSISTOR NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CAUTION: DIGITAL TRANSISTOR
1
A
B
C
D
E
F
G
H
G-3
G-4
A
B
C
D
E
F
G
H
DEFLECTION/CRT SCHEMATIC DIAGRAM
8
FROM/TO CHROMA CLAMP G.OUT B.OUT R.OUT V_FEEDBACK V_OUT ABCL H_SYNC H_OUT FBT+8V VCC 2 3 26.1 2.2 PUMP UP + AMP GND 4 0 V-OUT IC IC401 LA78041 THERMAL PROTECTION
(MAIN PCB)
GND CLAMP G.OUT B.OUT R.OUT CP802A 51048-0510 5 GND CLAMP G.OUT B.OUT R.OUT 4 3 2 1
CD802 2E053701
CP802B 51048-0510 5 GND 4 3 2 1 CLAMP G.OUT B.OUT R.OUT
GND CLAMP G.OUT B.OUT R.OUT
8
MG801 K002 29MMSTAR CD801 8115529 8M82025A K003 1 8115529
K001 8115529
1 390P CH 390P CH 2 390P CH
2
5 13 6 26 7 39
7
1 14 3.9
0.1
CP801 TS-80P-02-V1
C807
F
GND
7
C804
C806
35V 100 YK
5 7 1
18 D403 11E1-EIC 100V 0.068 TF C430 R415 1W R418_2 22K +-1% 2.7K 1/4W R419 R420_1 6.8K 1/4W 1.5K 1/2W R414
RED OUT Q801 2SC4075-YAC
19
11 6 8 10 9
B G R
R809
R814
100.6 2.7
98.4 2.7
95.4 2.7
R813
R816
C417_1
25V 2200 YK
6
150P SL
C408_1
220
CC004 TP-1S-05
R815
330
330
V801 A63AFW36X
330
R811
3.2
GREEN OUT Q803 2SC4075-YAC 3.2
BLUE OUT Q802 2SC4075-YAC
4.7K
4.7K
C805
C414
3.2
4.7K
6
1.5K 1/2W
11K 1/4W +-1%
R417_1
TF
C418
R407
R434
2.2
2.2
C427
HS401 763WAA0104
50V 10 MHE
1/2W
1/2W
R416
CC006 TP-1S-05 DY801 3321 203 00040 4
1
4 3 2 1
20 22 21
R404
2.7K
R406
2.7K
3 X-RAY TEST SW. Q403 DTA144EKA C434 16.1 R424 12K +-1% R409 6.2K +-1% 2 1 22 YK CP401_1 TS-80P-04-V1 C433 C410 0.0022 B D411 AU02A-EIC 35V 470 YK
HZ27-1L 22K +-1%
R405
R408
5
FROM/TO MICON/TUNER
18K +-1%
R401 100K +-1%
16.0 9.6
5
2.7K 1/4W
2W 2.7K 1/4W
D401
X-RAY X-RAY_TEST HZ11B1L
C437 C439 C440 500V 22P SL
H.DRIVE Q402 2SC2621
15 500V 470P B
200V 0.56
FHS
R429
220uH L801 C801
12K
R804
D402
2.7K 1/4W
100V
12K 2W
12K 2W R802
R803
R807
R806
R805
4.7 2W
FB401 3225010F HV
0.3 4.7K 1/2W 0 R446
T401 5013001 5 1 4
17
C443 H.OUTPUT 114.0 Q401 2SD2499(LBOEC1) 100 1/4W R427
0.01 ECWH
4
27.0
W843
330P CH
112.0 128.0 128.0 0
1
COL
4
R G B
16
0 0
MTZJ6.2B
1.6KV
FOCUS 6 2 VIDEO B+ F S GND 11 ABL 7 SCREEN CP806 005P-2100 1 W838
3
2
R440 3.3K 5W W812
D405
C446 160V 1 MHE
0
C401_1 220P R422 B
0 0
AFC HEA 10 TER 9 8 GND
L406 18uH
E8
-27.0
5
AU02A-EIC
C416
200V 0.027 PP
R428
D410
8.2 1/2W
D407 AU02A-EIC
W814 C406 500V 0.0022 B 0 11 6.4 9 10 J801 CVT3275-5102 96.4
D408 16V 470 MHE S801X C404 AU02A-EIC
C448
250V 10 YK
C802_1
3
6.8K
1/2W
0.3 E12 NC 4 -0.1 E25 3
GND 0 8
2KV 0.001 B
3
R445
100K 1/4W 100V 0.22 TF C435 R421
8
100K 1/4W
7
1 6 0
2
FROM POWER +B GND
F
101.6
HEATER GND GND 180V
4 3 2 1
HEATER GND GND 180V
4 3 2 1
HEATER GND GND 180V CP803B 51052-0400
99.6
PCB010 TMX458
CP803A 51052-0400
CD803 2E044101
PCB110 TCX318
R.SIGNAL G.SIGNAL B.SIGNAL DEFLECTION SIGNAL
2
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARE
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
5
CAUTION: DIGITAL TRANSISTOR
1
A
B
C
D
E
F
G
H
G-5
G-6
A
B
C
D
E
F
G
H
POWER SCHEMATIC DIAGRAM
8
(MAIN PCB)
TO CHROMA 6.3A 125V CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE 6.3A 125V(F501) ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQUES D'INCEIE N'UTILISER QUE DES FUSIBLE DE MEME TYPE 6.3A 125V(F501) AT+10V
8
D516 1SS133 0.2
RELAY DRIVE Q504 2SC1815Y 0.6 10K 1/4W
10K 1/4W
R515
0
7
RY501 SDT-S-109LMR 2 3 CP502 TV-50P-02-A1 1 2 TH501 PTBD14K2-3R0Q141 1
R523
TO DEFLECTION/CRT
GND +B S801Y
7
DEGAUSS COIL L503 8R250009 1
R500
C530
4
250V 0.001 KH
2.7M 1/2W +-10%
TO SOUND R517 6.8 2W C501 25V 1000 MHE SOUND+B GND
2
6
R501 1.2 7W RM11C-EIC RM11C-EIC D501 D502 B504 BL01RN1-A63 200V 470 USR
SOUND_GND
6
D510 160V 100 YXF RU2AM C521_2 BP
W802 250V 0.1 ECQUL ECQUL
C502 2KV 0.0022 RM11C-EIC D504
C503 C507 B 2KV 0.0022 B RM11C-EIC D503
C505
C506
3 1
4 2
C517 2KV 0.0015
F501
250V 0.1
6.3A 125V
5
BLACK AC120V_60Hz CD501 0R614909 1 1 BLACK WHITE BLADE WIDE WHITE FH501 EYF-52BC 23706.3 6.3A125V FH502 EYF-52BC
W809 L501 FET24S-H22502 IC501 SW REG. IC STR-G6624 DRIVER T501 8135048S C518 500V 470P B D514 11EQS04N 16V 1000 MHE +B DEGAUSS_H
5
154.4 0
D 1 BL01RN1-A63 0 B505
2
2
7 6 5 4 3
0 10 NC
11 12 13 14 15 0
FROM/TO MICON/TUNER
47K 3W
R505
CP501 THL-P03P-B1
FB/ OCP 5 1.7 0.2 4
CONT VCC GND S 3 2 100.5 16.5
0
0
0
C531
4
W820
NC
GND
23
150.4
-1.3
0 0 NC
4
11EQS04N
C512_1 D515 3.3K 1/4W +-1% 470P B 24 BL02RN2-R62T4
2KV 0.0012
C514
BP
22 1/2W
0 NC
FEED BACK IC506 TLP621(D4-GR-LF2) C554_1 0.0022 Y 6.3 6.0 +B ADJ VR502 330 FEED BACK SWITCHING Q507 2SC1815Y R553 1.8K 5.4 6.3 1 4 7.3 10.1
R503
D506 35V 100 MHE RMPG06J
R543 2 3 6.4 D518 1SS133 C515_1 470P B 680 1/2W R506
B502
3
C510
R502
1
16
3
D521 1SS133
R533
390
HS501 763WAAA023
0.15 1W
R542
2.2K 1/2W
R514
1/4W
R532 56K 1/2W R554 330
GND1
2.7K
C532
D528
2
MTZJ5.6B
250V 0.0022
KH
2
CAUTION:
IS THE LIVE CONNECTION
PCB010 TMX458
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
1
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY ARE
A
B
C
D
E
F
G
H
G-7
G-8
A
B
C
D
E
F
G
H
SOUND SCHEMATIC DIAGRAM
(MAIN PCB)
8 8
FROM MICON/TUNER
7
AUDIO_MUTE
7
6
6
SOUND AMP IC IC351_1 AN7523
R356
120K
+ + VCC 1 5.7
+ GND R355
FROM POWER
4.6
0
4.6
4.1
1.6
0
2.9
SOUND+B GND SOUND_GND W829 W835 W825 50V 1 MHE B C352 26
C363
3.9K
5
2
3
4
5
6
7
8 NC 0
9
5
KANP
C353_1
R358
50V 2.2
5.6K
W837
0.01
FROM CHROMA
W836
4
AUDIO_OUT STEREO+5V 25
W813 W858 W828 2.9 0 R354 6.3V 47 KA 4.7K 1/4W C360 0 MUTE SW. Q351 2SC2412K
CP351_1 TID-X02P-B2 1 2
SPEAKER
4
1 2 4OHM 2.5W SP351_1 S0407F02
3
3
2
2
PCB010 TMX458
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARE
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
AUDIO SIGNAL
1
A
B
C
D
E
F
G
H
G-9
G-10
WAVEFORMS
MICON/TUNER
1 200mV 5ms/div
6 0.5V 20µs/div
11 1V 20µs/div
2 0.5V 20µs/div
7 200mV 20µs/div
12 1V 20µs/div
3 200mV 20µs/div
8
20V 20µs/div
13 1V 20µs/div
DEFLECTION/CRT
4 200mV 5ms/div
9
200mV 20µs/div
14 0.5V 5ms/div
CHROMA
5 0.5V 2ms/div
10 0.5V 5ms/div
15 20V 20µs/div
NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
H-1
WAVEFORMS
16 2V 20µs/div
21 50V 20µs/div
26 1V 1ms/div
17 200V 20µs/div
22 50V 20µs/div
POWER
18 10V 5ms/div
23 5.0V 20ms/div
19 10V 5ms/div
24 500mV 5µs/div
SOUND
20 50V 20µs/div
25 0.5V 1ms/div
NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
H-2
MECHANICAL EXPLODED VIEW
111
204
204 204
113 205 116 110
204
204
J801
204 204
101 116 105 205 101
PCB110 (CRT PCB) 114
205
L503
FB401 205
115 202 103 102
MS501
206
V801
ATC001
115
104 203
PCB010 (MAIN PCB)
112
TU001
203 SP351 201 201
201
201
109
108
107
106
I-1
MECHANICAL REPLACEMENT PARTS LIST
REF. NO. PART NO.
101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 201 202 203 204 205 206 ----------------------741WUA0021 701APJA034 713WPA0096 7260000306 735WPA0426 702APA0121 722A08A066 723000B114 7230006873 899HV3T001 762WPA0009 8994201000 8110630A04 8117D30A04 8109630802 8117540B04 8111J50D04 810B130A04 JB5U0200 J3I0A201 J4C80417 792AHA0073 792AHA0074 791AHA0021 793ACDA086 COATING CLIP HEAT SINK HEAT SINK METAL SPACER SPRING,EARTH CABINET,FRONT GUIDE,REMOCON SHEET,CAUTION BUTTON ASS'Y CABINET,BACK SHEET,RATING FILM,DECORATION SHEET,BRAND HOLDER,ANODE WIRE HOLDER,CRT WIRE HOLDER,CRT WIRE SCREW,TAP TITE (P) SCREW,TAPPING (B0) SCREW,TAP TITE (B) SCREW,TAPPING (B0) SCREW,TAPPING (A) SCREW/WASHER (B) POLY & BAG INSTRUCTION BOOK REGISTRATION CARD PACKAGE,TOP PACKAGE,BOTTOM FILM,BAG GIFT BOX BRAZIER WH8 BRAZIER BRAZIER TRUSS GW22 3x10 3x10 3x8 4x20 5x40 M3x10
DESCRIPTION
J1-1
ELECTRICAL REPLACEMENT PARTS LIST
REF. NO.
R001 R134 R135 R401 R404 R405 R406 R407 R408 R409 R415 R421 R424 R429 R434 R440 R500 R501 R502 R503 R505 R506 R514 R515 R517 R542 R543 R650 R651 R803 R805 R807 C130 C404 C414 C416 C418 C433 C434 C437 C443 C446 C448 C501 C502 C503 C505 C506 C507 C510 C514 C517 C521 C530 C531 C532 C654 C655 C656 C658
PART NO.
R3X181683J R002T4103J R00106272J R4X5T6104F R903N8272J R4X5T6223F R903N8272J R002T22R2J R4X5T6183F R4X5T6622F R3X181221J R001T4104J R4X5T6123F R6558A4R7J R002T22R2J R5X2CD332J R0G3K2275K R5X2CE1R2J R002T2220J R4X5T4332F R3X28B473J R002T2222J R002T4272J R002T4103J R3X18A6R8J R33681R15J R635U2681J R00104271J R00106332J R3X18A123J R3X18A123J R3X18A123J CHG0B04H2K E5EZT2471M E02LT4101M P3N1F2273J E02LF3222M E02LT4471M E02LT8220M P447F2564J P414F9103H E5EZTB010M E0ELTD100M E5EZF3102M C13HB07H3K C13HB07H3K P2122B104M P2122B104M E52DGC471M E5EZT4101M C01BBP7B3K C01BBP7E3K E62NFB101M CB3LE0M13M E5EZT2102M CB3LE0MH3M CS0RCH4H2J E02L05100M CHG0B0412K CHGTB0413K D94TA30013 D97U06R21B D94TA27011 D94TA11B11 D2WT011E10 D97U06R21B D92UA6R2B2 D2WTAU02A0 D2WTAU02A0 D2WTAU02A0 D2WTAU02A0 D2WTRM11C0 D2WTRM11C0 D2WTRM11C0 D2WTRM11C0
DESCRIPTION RESISTORS
R, METAL RC RC R, METAL RC R, METAL RC RC R, METAL R, METAL R, METAL OXIDE RC R, METAL R, FUSE RC R, CEMENT RC R, CEMENT RC R, METAL R, METAL OXIDE RC RC RC R, METAL OXIDE R, METAL R, FUSE RC RC R, METAL OXIDE R, METAL OXIDE R, METAL OXIDE 68K OHM 1W 10K OHM 1/4W 2.7K OHM 1/6W 100K OHM 1/6W 2.7K OHM 1/8W 22K OHM 1/6W 2.7K OHM 1/8W 2.2 OHM 1/2W 18K OHM 1/6W 6.2K OHM 1/6W 220 OHM 1W 100K OHM 1/4W 12K OHM 1/6W 4.7 OHM 2W 2.2 OHM 1/2W 3.3K OHM 5W 2.7M OHM 1/2W 1.2 OHM 7W 22 OHM 1/2W 3.3K OHM 1/4W 47K OHM 3W 2.2K OHM 1/2W 2.7K OHM 1/4W 10K OHM 1/4W 6.8 OHM 2W 0.15 OHM 1W 680 OHM 1/2W 270 OHM 1/4W 3.3K OHM 1/6W 12K OHM 2W 12K OHM 2W 12K OHM 2W 220 PF 50V B 470 UF 16V 100 UF 35V 0.027 UF 200V 2200 UF 25V 470 UF 35V 22 UF 100V 0.56 UF 200V FHS 0.01 UF 1.6KV ECWH 1 UF 160V 10 UF 250V 1000 UF 25V 0.0022UF 2KV B 0.0022UF 2KV B 0.1 UF 250V ECQUL 0.1 UF 250V ECQUL 470 UF 200V 100 UF 35V 0.0012UF 2KV BP 0.0015UF 2KV BP 100 UF 160V 0.001 UF 250V 1000 UF 16V 0.0022UF 250V 220 PF 50V CH 10 UF 50V 100 PF 50V B 0.001 UF 50V B
REF. NO.
! D506 ! D510 ! D514 D515 D516 D518 ! D521 D528 D601 D602 D605 D606 D607 D608 D609 D610 IC101 IC199 IC351 IC401 IC501 IC506 IC601
PART NO.
D2LTPG06J0 D2BTRU2AM0 D28TQS04N0 D28TQS04N0 D1VT001330 D1VT001330 D1VT001330 D97U05R61B D1VT001330 D97U08R21B D92UA8R2B2 D2WT011E10 D97U06R81B D1VT001330 D97U06R81B D97U06R81B D97U06R81B I56F07045A A3I0A2E015 I0FSP75230 I03TD80410 I2BT06624G 0002500560 I06FC1203C TNYJJ05001 T8YJ2412K0 TDUU024990 TC3Q026210 TPYJD05001 TC5T018154 TCATC31980 TC5T018154 TCATC31980 TD3T007340 TPYJD05001 TD3T007340 TD3T007340 TD3T007340 TD3T007340 TNYTB05001 TNYTB05001 TC3Q040750 TC3Q040750 TC3Q040750 021LA62R7K 021U6D180K 029F000074 028R250009 0216731R2K 021LA61R0M 021LA62R2K 021LA6150K 021LA66R8K 021673221K 045013001J 048135048S
DESCRIPTION DIODES
DIODE, SILICON DIODE, SILICON DIODE, SCHOTTKY DIODE, SCHOTTKY DIODE, SILICON DIODE, SILICON DIODE, SILICON DIODE, ZENER DIODE, SILICON DIODE, ZENER DIODE, ZENER DIODE, SILICON DIODE, ZENER DIODE, SILICON DIODE, ZENER DIODE, ZENER DIODE, ZENER RMPG06J-G3 RU2AM V1 11EQS04N-TA1B2 11EQS04N-TA1B2 1SS133T-77 1SS133T-77 1SS133T-77 MTZJ5.6B T-77 1SS133T-77 MTZJ8.2B T-77 or RD8.2ES AB2 11E1-EIC MTZJ6.8B T-77 1SS133T-77 MTZJ6.8B T-77 MTZJ6.8B T-77 MTZJ6.8B T-77 OEC7045A S-24C02BDP-1A AN7523 LA78041 STR-G6624 TLP621(D4-GR-LF2 M61203CFP DTC114TKAT146 2SC2412KT146(R,S) 2SD2499(LB0EC1) 2SC2621(D,E)-RAC DTA144EKAT146 2SC1815Y(TPE2) or KTC3198-AT(Y,GR) 2SC1815Y(TPE2) or KTC3198-AT(Y,GR) 2SD734(E,F)-AA DTA144EKAT146 2SD734(E,F)-AA 2SD734(E,F)-AA 2SD734(E,F)-AA 2SD734(E,F)-AA DTC114EKT147 DTC114EKT147 2SC4075-YAC 2SC4075-YAC 2SC4075-YAC 2.7 UH 18 UH FET24S-H22502 8R250009 1.2 UH 1 UH 2.2 UH 15 UH 6.8 UH 220 UH 5013001 8135048S CVT3275-5102 SKHVBED010 SKHVBED010 SKHVBED010 SKHVBED010 SKHVBED010 EVNCYAA03BY2 TMX458A TCX318A BL02RN2-R62T4 BL01RN1-A63T6 BL01RN1-A63T6 0R614909
! ! ! ! ! ! ! ! ! ! ! ! ! !
ICS
IC IC IC IC IC PHOTO COUPLER IC
!
! ! ! !
! ! !
TRANSISTORS
Q101 Q351 ! Q401 ! Q402 Q403 Q504 Q507 Q601 Q602 Q603 Q604 Q605 Q606 Q607 Q609 ! Q801 ! Q802 ! Q803 L101 L406 ! L501 ! L503 L601 L605 L606 L607 L608 L801 T401 ! T501 ! J801 SW101 SW102 SW103 SW104 SW105 or VR502 PCB010 PCB110 B502 B504 B505 ! CD501 COMPOUND TRANSISTOR TRANSISTOR, SILICON TRANSISTOR, SILICON TRANSISTOR, SILICON COMPOUND TRANSISTOR TRANSISTOR, SILICON TRANSISTOR, SILICON TRANSISTOR, SILICON TRANSISTOR, SILICON TRANSISTOR, SILICON COMPOUND TRANSISTOR TRANSISTOR, SILICON TRANSISTOR, SILICON TRANSISTOR, SILICON TRANSISTOR, SILICON COMPOUND TRANSISTOR COMPOUND TRANSISTOR TRANSISTOR, SILICON TRANSISTOR, SILICON TRANSISTOR, SILICON COIL COIL COIL, LINE FILTER COIL, DEGAUSS COIL COIL COIL COIL COIL COIL TRANS, HORIZONTAL DRIVE TRANSFORMER, SWITCHING
! ! !
CAPACITORS
! CC CE CE CPP CE CE CE CMPP CMPP CE CE CE CC CC CMP CMP CE CE CC CC CE CC CE CC CC CE CC CC
! ! ! ! ! ! ! ! ! ! ! !
COILS &TRANSFORMERS
! ! !
JACK
066C130015 SOCKET,CRT
DIODES
D001 D199 ! D401 ! D402 ! D403 D405 ! ! ! ! ! ! ! ! D407 D408 D410 D411 D501 D502 D503 D504 DIODE, ZENER DIODE, ZENER DIODE, ZENER DIODE, ZENER DIODE, SILICON DIODE, ZENER DIODE, ZENER DIODE, SILICON DIODE, SILICON DIODE, SILICON DIODE, SILICON DIODE, SILICON DIODE, SILICON DIODE, SILICON DIODE, SILICON HZ30-3L TD MTZJ6.2B T-77 HZ27-1L TD HZ11B1L TD 11E1-EIC MTZJ6.2B T-77 RD6.2ES AB2 AU02A-EIC AU02A-EIC AU02A-EIC AU02A-EIC RM11C-EIC RM11C-EIC RM11C-EIC RM11C-EIC 0504201T31 0504201T31 0504201T31 0504201T31 0504201T31
SWITCHES
SWITCH, TACT SWITCH, TACT SWITCH, TACT SWITCH, TACT SWITCH, TACT
VARIABLE RESISTOR
V1163L2BTC VOLUME, SEMI FIXED
P.C.BOARD ASSEMBLIES
A3I0A2E01A A3I0A2E11A 024AT03482 024AT03655 024AT03655 120R614909 PCB ASS'Y PCB ASS'Y
MISCELLANEOUS
CORE, BEADS CORE, BEADS CORE, BEADS CORD, AC
J2-1
ELECTRICAL REPLACEMENT PARTS LIST
REF. NO.
CD801 CD802 CD803 CF601 CF603 CF604 CP351 CP401 CP501 CP502 CP601 CP801 CP806 CP802A CP802B CP803A CP803B ! DY801 ! F501 ! FB401 FH501 FH502 K001 K002 K003 MG801 OS101 ! RY501 ! SP351 ! TH501 TM101 ! TU001 ! V801 X101 X602
PART NO.
068M82025A 122E053701 122E044101 1022T45R72 1012T4R509 1011T4R517 069W120019 069W340018 0697320039 069S320419 069W420029 0697260650 069W320018 069W010010 067R005019 067R005019 067R104019 067R104019 027Q062501 081PA6R302 043225010F 06710T0006 06710T0006 129A000010 129A000010 129A000010 026A062704 077Q014003 077Q047001 0560Q10201 070Y533002 DF40B3R0Q0 076R074180 0145K00055 092T250501 1002T00801 100CT3R505
DESCRIPTION MISCELLANEOUS
CORD, CONNECTOR CORD, JUMPER CORD, JUMPER FILTER, SAW FILTER, CERAMIC FILTER, CERAMIC CONNECTOR PCB SIDE CONNECTOR PCB SIDE CORD, UX CONNECTOR CONNECTOR PCB SIDE CONNECTOR PCB SIDE CONNECTOR PCB SIDE CONNECTOR PCB SIDE CONNECTOR PCB SIDE WIRE HOLDER WIRE HOLDER WIRE HOLDER WIRE HOLDER DY FUSE TRANSFORMER, FLYBACK HOLDER, FUSE HOLDER, FUSE WEDGE WEDGE WEDGE MAGNET, CONVERGENCE REMOTE RECEIVER REMOTE RECEIVER RELAY SPEAKER DEGAUSS, ELEMENT TRANSMITTER TUNER, VHF-UHF COLOR PICTURE TUBE CERAMIC OSILLATOR CRYSTAL HC-49/C 8M82025A 2E053701 2E044101 SAF45MFY220ZR SFSH4.5MCB-TF21 EFCT4R5MW5 TID-X02P-B2 TS-80P-04-V1 THL-P03P-B1 or A3963WV2-3PD TV-50P-02-A1 TKC-M06X-A1 TS-80P-02-V1 005P-2100 51048-0510 51048-0510 51052-0400 51052-0400 3321 203 00040 23706.3 3225010F EYF-52BC EYF-52BC 8115529 8115529 8115529 29MMSTAR PIC-28143SY-2 or PIC-47143SY SDT-S-109LMR S0407F02 PTBD14K2-3R0Q141 R25-1127 TECC1040PG32D A63AFW36X CST8.00MTW-TF01 3.579545MHz
RESISTOR RC................... CARBON RESISTOR CAPACITORS CC................... CERAMIC CAPACITOR CE................... ALUMI ELECTROLYTIC CAPACITOR CP................... POLYESTER CAPACITOR CPP.................. POLYPROPYLENE CAPACITOR CPL.................. PLASTIC CAPACITOR CMP................. METAL POLYESTER CAPACITOR CMPL............... METAL PLASTIC CAPACITOR CMPP............... METAL POLYPROPYLENE CAPACITOR
J2-2
SPEC.NO. O/R NO.
M3I0-A2E A0X3524
MT2251 SERIES D
SERVICE MANUAL
COLOR TELEVISION RECEIVER
ORIGINAL MFR'S VERSION A
Design and specifications are subject to change without notice.
SERVICING NOTICES ON CHECKING
1. KEEP THE NOTICES
As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual.
6. AVOID AN X-RAY
Safety is secured against an X-ray by considering about the cathode-ray tube and the high voltage peripheral circuit, etc. Therefore, when repairing the high voltage peripheral circuit, use the designated parts and make sure not modify the circuit. Repairing except indicates causes rising of high voltage, and it emits an X-ray from the cathoderay tube.
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an electric shock while the electric current is flowing.
3. USE THE DESIGNATED PARTS
The parts in this equipment have the specific characters of incombustibility and withstand voltage for safety. Therefore, the part which is replaced should be used the part which has the same character. Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a mark, the designated parts must be used.
7. PERFORM A SAFETY CHECK AFTER SERVICING
Confirm that the screws, parts and wiring which were removed in order to service are put in the original positions, or whether there are the portions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades. And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
4. PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING
There are parts which use the insulation material such as a tube or tape for safety, or which are assembled in the condition that these do not contact with the printed board. The inside wiring is designed not to get closer to the pyrogenic parts and high voltage parts. Therefore, put these parts in the original positions.
5. TAKE CARE TO DEAL WITH THE CATHODE-RAY TUBE
In the condition that an explosion-proof cathoderay tube is set in this equipment, safety is secured against implosion. However, when removing it or serving from backward, it is dangerous to give a shock. Take enough care to deal with it.
1. Unplug the plug from the AC outlet. 2. Remove the antenna terminal on TV and turn on the TV. 3. Insulation resistance between the cord plug terminals and the eternal exposure metal [Note 2] should be more than 1M ohm by using the 500V insulation resistance meter [Note 1]. 4. If the insulation resistance is less than 1M ohm, the inspection repair should be required.
[Note 1]
If you have not the 500V insulation resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal
HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the VERSION LETTER.) 1. MODEL NUMBER and VERSION LETTER The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be found at the end of the SERIAL NUMBER. 2. PART NO. and DESCRIPTION You can find it in your SERVICE MANUAL.
IMPORTANT
Inferior silicon grease can damage IC's and transistors. When replacing an IC's or transistors, use only specified silicon grease (YG6260M). Remove all old silicon before applying new silicon.
A1-1
CONTENTS
SERVICING NOTICES ON CHECKING ...................................................................................................... HOW TO ORDER PARTS ........................................................................................................................... IMPORTANT ................................................................................................................................................ CONTENTS ................................................................................................................................................. GENERAL SPECIFICATIONS .................................................................................................................... DISASSEMBLY INSTRUCTIONS ............................................................................................................... SERVICE MODE LIST ................................................................................................................................. CONFIRMATION OF USING HOURS ......................................................................................................... NOTE FOR THE REPLACING OF MEMORY IC ........................................................................................ ELECTRICAL ADJUSTMENTS .................................................................................................................. MAJOR COMPONENTS LOCATION GUIDE ............................................................................................. BLOCK DIAGRAM ...................................................................................................................................... PRINTED CIRCUIT BOARDS MAIN/CRT........................................................................................................................................... SCHEMATIC DIAGRAMS MICON/TUNER .................................................................................................................................. CHROMA ........................................................................................................................................... DEFLECTION/CRT ............................................................................................................................ POWER ............................................................................................................................................. SOUND .............................................................................................................................................. WAVEFORMS ............................................................................................................................................. MECHANICAL EXPLODED VIEW .............................................................................................................. MECHANICAL REPLACEMENT PARTS LIST .......................................................................................... ELECTRICAL REPLACEMENT PARTS LIST ............................................................................................
A1-1 A1-1 A1-1 A2-1 A3-1~A3-4 B-1, B-2 C-1 C-1 C-1 D1-1~D2-1 D3-1 E-1, E-2 F-1~F-4 G-1, G-2 G-3, G-4 G-5, G-6 G-7, G-8 G-9, G-10 H-1, H-2 I-1 J1-1 J2-1, J2-2
A2-1
GENERAL SPECIFICATIONS
G-1 TV System CRT CRT Size / Visual Size CRT Type Deflection Magnetic Field BV/BH 25 inch / 626mmV Normal 100 degree +0.45G/0.18G NTSC 2Speaker Front 1.5 x 2.7 Inch 4 ohm 0.75 + 0.75 W 0.5 + 0.5 W No US System M 1Tuner Ohers F-Synth VHF/UHF 75 ohm 2 - 69, 4A, A-5 - A-1, A - I, J - W, W+1 - W+84 45.75MHz 41.25MHz 4.50MHz No No Yes 120V AC 60Hz at AC Stand by (at AC) Per Year Power Fuse Safety Radiation X-Radiation Operation Storage 110 W at AC 120 V 60 Hz 8 W at AC 120 V 60 Hz -kWh/Year Yes UL FCC DHHS +5oC ~ +40oC -20oC ~ +60oC Less then 80% RH Yes Character Yes Yes Yes Yes Yes Yes No No No No No No Yes Yes Yes Yes Yes Yes No No No Yes Yes Yes Yes Yes Yes Yes No No No No No No No No Yes No Yes Yes Yes
Color System Speaker Position Size Impedance MAX 10%(Typical)
Sound Output
G-2
Tuning System
NTSC3.58+4.43 /PAL60Hz Broadcasting System Tuner and System Receive CH Destination Tuning System Input Impedance CH Coverage Picture(FP) Sound(FS) FP-FS
Intermediate Frequency Preset CH Stereo/Dual TV Sound Tuner Sound Muting Power Source Power Consumption
G-3
Power
AC DC
Protector G-4 Regulation
G-5 G-6 G-7
Temperature Operating Humidity On Screen Menu Display
Menu Type Picture Contrast Brightness Color Tint Sharpness Audio Bass Treble Balance BBE On/Off Stable Sound On/Off CH Set Up TV/CATV CH Program Add/Erase Language V-chip CH Label Favorite CH Color Stream DVD/DTV Control Level Volume Brightness Contrast Color Tint (NTSC Only) Sharpness Tuning Bass Treble Balance Back Light Stereo,Audio Output,SAP Video Color Stream Channel(TV/Cable) CH Label Sleep Timer Sound Mute V-chip Rating
A3-1
GENERAL SPECIFICATIONS
G-8 G-9 OSD Language Clock and Timer Sleep Timer OSD Language Setting Max Time Step Program(On Tim / Off Tim) English French English 120 Min 10 Min No No -Min RC-DW No NEC 86-05 h 3V UM-4 x 2 pcs 26 Keys Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes Yes No No Yes Yes No No No No No No No No No No No No No Spanish
G-10
Remote Control
On/Off Timer Wake Up Timer Timer Back-up (at Power Off Mode) more than Unit Glow in Dark Remocon Format Custom Code Power Source Voltage(D.C) UM size x pcs Total Keys Keys Power 1 2 3 4 5 6 7 8 9 0 100 CH Up CH Down Volume Up Volume Down TV/Caption/Text CH1/CH2 TV/Video(TV/AV) CH RTN/CH ENT(Quick View) Sleep RE Call(Call) Reset Menu Enter Mute Exit MTS(Audio Select) Set + Set Multi Brand Keys CH Up(VCR) CH Down(VCR) Pause/Still TV/VCR(VCR) Code FF Rew Rec Play Stop TV VCR Cable
Sec
A3-2
GENERAL SPECIFICATIONS
G-11 Features Auto Degauss Auto Shut Off Canal+ CATV Anti-theft Rental Memory(Last CH) Memory(Last Volume) V-Chip Type BBE Auto Search CH Allocation SAP Channel Lock Just Clock Function Game Position CH Label VM Circuit Full OSD Premiere Comb Filter Auto CH Memory Hotel Lock Closed Caption Stable Sound Favorite CH Owner's Manual Remote Control Unit Rod Antenna Poles Terminal Loop Antenna Terminal U/V Mixer DC Car Cord (Center+) Guarantee Card Warning Sheet Circuit Diagram Antenna Change Plug Service Facility List Important Safeguard Dew/AHC Caution Sheet AC Plug Adapter Quick Set-up Sheet Battery UM size x pcs OEM Brand AC Cord AV Cord (2Pin-1Pin) Registration Card PTB Sheet 300 ohm to 75 ohm Antenna Adapter No No No No No No No No No No No No No No No Yes No No No Yes Yes No Yes No No Yes Yes Yes USA,ORION Type No No No No No No No No No No No No Lines Yes No Yes No No English Yes Yes No
G-12
Accessories
Language w/Guarantee Card
A3-3
GENERAL SPECIFICATIONS
G-13 Interface Switch Power System Select Main Power SW Sub Power Channel Up/Reset Channel Down/Enter Volume Up/Set Up Volume Down/Set Down Menu: Vol Up + Vol Down Rear AC/DC TV/CATV Selector Degauss Main Power SW Power Stand-by On Timer Front Video Input Audio Input Other Terminal Rear Video Input(Rear1) Video Input(Rear2) Audio Input(Rear1) Audio Input(Rear2) Video Output Audio Output Euro Scart Color Stream Diversity Ext Speaker DC Jack 12V(Center +) VHF/UHF Antenna Input AC Outlet Approx. W x D x H (mm) Net (Approx.) Gross (Approx.) Master Carton Content Material Dimensions W x D x H(mm) Description of Origin Gift Box Material Dimensions W x D x H(mm) Design Description of Origin Drop Test Height (cm) Container Stuffing Cabinet Front Cabinet Rear Front Yes No No No Yes Yes Yes Yes Yes No No No No No No No No No No No No No No No No No No No No No F Type No 618 x 504 x 525 27kg ( 59.9 lbs) 29Kg ( 64.3 lbs) No ---Sets -/--- x -- x -No Yes Double/White 689 x 577 x 620 As per Buyer's Yes Natural Dropping At 1 Corner / 3 Edges / 6 Surfaces 31 204 Sets/40' container PS 94V0 DECABROM PS 94V0 DE
Indicator
Terminals
G-14 G-15 G-16
Set Size Weight Carton
G-17
Cabinet Material
A3-4
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF ANODE CAP
Read the following NOTED items before starting work. * After turning the power off there might still be a potential voltage that is very dangerous. When removing the Anode Cap, make sure to discharge the Anode Cap's potential voltage. * Do not use pliers to loosen or tighten the Anode Cap terminal, this may cause the spring to be damage