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MT2365
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 [Note1] . 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.
BBE and the BBE symbol are trademarks of BBE Sound, Inc.
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/COMB .............................................................................................................................. SCHEMATIC DIAGRAMS MICON/TUNER .................................................................................................................................. CHROMA ........................................................................................................................................... DEFLECTION/CRT ............................................................................................................................ TV POWER ........................................................................................................................................ SOUND AMP ..................................................................................................................................... JACK/SOUND .................................................................................................................................... STEREO/MONO ................................................................................................................................ COMB/FILTER ................................................................................................................................... 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 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 G-11, G-12 G-13, G-14 G-15, G-16 H-1~H-3 I-1, I-2 J1-1 J2-1~J2-3
A2-1
GENERAL SPECIFICATIONS
G-1.Outline of the Product 36 inch( 902.0 mmV):Measured diagonally Color CRT 110 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) Oscar(W/ HYPER) channel coverage 2 ~ 69 , 4A , A-5 ~ A-1 , A~I , Tuning System Frequency syn. Voltage syn. G-8.Preset Channel -- 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.Power Source G-13.Power Consumption: (Approx) Stand by(Approx): Per Year: G-14.Dimensions(Approx.) 850 mm(W) G-15.Weight(Approx.) G-16.Cabinet Material Cabinet Front: 45.75 MHz 41.25 MHz 4.50 MHz GERMAN Yes 120 160 8 V MHz MHz MHz USA No AC 50Hz V V V
France CATV J~W Others ,
Others
W+1~ W+84
MHz MHz MHz JAPAN) No
AC 60Hz 60 60 Hz Hz
W at AC 120 W at DC W at AC 120 kWh / Year mm(D) 806 mm(H)
608
Net : Gross:
70 73 PS ABS PS ABS
kg ( -- lbs) kg ( -- lbs) 94HB 94V2 94V0 94HB 94V2 94V0 DECABROM NON-DECA DECABROM NON-DECA
Back Panel: G-17.Protector:
Power Fuse
A3- 1
GENERAL SPECIFICATIONS
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 CSA NF NZ AS3159 DOC SI CISPR13 DHHS 5 -20 ºC~ ºC~ SAA NEMKO HOMOLO DENTORI FTZ NF DENTORI HWC 40 ºC 60 ºC Less than Yes Max Yes Yes 80 %RH 10 Min. Step) No No No SI FEMKO SABS UNE PTT NZ AS/NZS DENTORI CE DEMKO CNS GOST CE HOMOLO NONE NONE SEV IEC65 SISIR NONE SEV UNE
120 Min.( Programs 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 ø Front Audio Input (RCA ø Rear Video Input (RCA ø Rear Audio Input (RCA ø Rear Video Output (RCA ø Rear Audio Output (RCA ø 21 Pin G-24.Indicator ( Power ) ( Stand By ) ( On Timer ) NONE Din Type 8.3) 8.3) 8.3) 8.3) 8.3) 8.3) S Input(Rear) F-Type France Type
G-25.Display On Screen Display Menu Clock Set( 12H 24H) Hotel Lock Sound 1/2 Guide CH Set CATV Control Level Volume Color Tuning Balance Stereo, Audio Output, Bilingual Stereo, Audio Output, SAP Stereo, Audio Output AV Channel Sleep Timer Sound Mute
System Select Area Code NICAM Auto Off Audio Pin Code Registration Brightness Tint 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
A3- 2
GENERAL SPECIFICATIONS
G-26.OSD Language Eng Ger Fre Spa Ita Por Jpn OSD Language Setting Eng Ger Fre Spa Ita Por Jpn Not Applicable G-27.Speaker : P os i t i on Front Side Bottom Size 4 inches Imp 4 ohm x 2 pcs Power Max 5.0 + 5.0 W 10% 4.5 + 4.5 W (Typical) P os i t i on Center Size -inches Imp -- ohm x -- pcs Power Max -- W 10% -- W (Typical) G-28.EXT Speaker : Yes -- 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: 956 mm(W) 717 mm(D) 938 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 80cm Container Stuffing: 80 Sets / U.S. Trailer G-30.Accessories Owner's Manual ( W/Guarantee Card) [English/French] AC Plug Adapter Channel Film Battery (UM- 3 x2 ) 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 Search Full OSD Auto Shut Off CH Allocation Premiere Canal+ SAP Comb Filter CATV(181Ch) Channel Lock Auto CH Memory Anti-Theft Just Clock Function Hotel Lock Rental Game Position Fastext Closed Caption Center Woofer Picture Menu Mid Night Theater V-Chip P-in-P(1TUNER) Univalsal Remcon BSVM BBE Sound
A3- 3
GENERAL SPECIFICATIONS
G-32.Switch Front Power(Tact) System Select Main Power SW Rear AC/DC Degauss G-33.Magnetic Field BV : +0.45G BH : 0.18G BV : -0.15G BH : 0.15G G-34.Remote Control Unit: Glow in Dark Remocon Power Source: Total 42 Key Power Stand By 0 1 2 3 4 5 6 7 8 9 10 11 12 TV/CATV Selector Main Power SW BV : +0.35G BH : 0.30G BV : -0.25G BH : 0.15G RC-CS Yes D.C 3 V Battery UM - 3 x 2 Quick View Status Time Select Time Set Muting CH Skip CH1/CH2 Channel Text/Mix/TV Display Cancel Initial Store Reveal Sleep Aft/Skip Preset 5.5/6.5MHz Auto Memory Auto Call Reset Menu Enter Add Delete Yellow Random Tuning Up/Time Text Tuning Down/Reset Navi 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
0/10 Tone 1/2 Info Mono/Auto TV/Caption/Text Expand Red Cyan Normal Color System Wide Selecy Auto Wide On/Off Picture Position Direct Change/Auto Search Picture Menu Mid Night Theater Multi Brand Key VCR Power CH Enter Cable Power Rec Pause/Still Stop TV/VCR(VCR) Rew FF MBR Set
TV/AV 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 Back Light Audio Select TV VCR Cable Play
A3- 4
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF ANODE CAP
Read the following NOTED items before starting work. 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.)
* *
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. Location of Anode Cap
Fig. 1-3 GND on the CRT 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
Fig. 1-4 4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 1-5.
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
CRT Support Fig. 1-2
CRT
Support Fig. 1-5
5. Confirm that the Support is securely connected. 6. Put on the Rubber Cap without moving any parts.
B-1
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. NOTE: No need the setting for after INI 09. ADDRESS DATA INI 00 80 INI 01 27 INI 02 80 INI 03 00 INI 04 00 INI 05 00 INI 06 80 INI 07 1B INI 08 26 INI 09 0A
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. 1-1:Prepare the following measurement tools for electrical adjustments. 1. Synchro Scope 2. Digital Voltmeter 1. RF AGC DELAY 2. VIDEO LEVEL 3. FM LEVEL 4. OSD H 5. CUT OFF 6. X-RAY 7. 8. 0. RETURN
Fig. 2-2
2-2: CUT OFF 1. Place the set with Aging Test for more than 15 minutes. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 2-1 and press the channel button (5) on the remote control. The Fig. 2-2 appears on the display. 4. Press the channel button (5) on the remote control. 5. Adjust the Screen Volume until a dim raster is obtained. 2-3: WHITE BALANCE NOTE:
2. BASIC ADJUSTMENTS
On-Screen Display Adjustment Press both 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. 2-1. NOTE Use the Channel buttons (1-8) on the remote control to select the options shown in Fig. 2-1. Press the Channel button (0) on the remote control to end the adjustments. 1. H/V 2. AKB 3. COLOR TEMP 4. PICTURE 5. OTHERS 6. TEST PATTERN 7. STEREO/SAP 8. (VOL TEST) 0. END
Adjust after performing adjustments in section 2-2. 1. Place the set with Aging Test for more than 15 minutes. 2. Receive the color bar pattern. 3. Activate the adjustment mode display of Fig. 2-1 and press the channel button (2) on the remote control. The Fig. 2-3 appears on the display. 4. Adjust the adjustment mode display of Fig. 2-3 until the white color is looked like a white. 1. AKB AUTO 2. R. BIAS 3. G. BIAS 4. B. BIAS 5. R. DRIVE 6. G. DRIVE 7. B. DRIVE 8. AGC AUTO
0. RETURN
Fig. 2-3
2-4: HORIZONTAL PHASE Fig. 2-1 1. Receive the monoscope pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 2-1 and press the channel button (1) on the remote control. The Fig. 2-4 appears on the display. 4. Press the channel button (1) on the remote control. 5. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes minimum. 1. H. PHASE 2. H. BLK 3. V. SIZE 4. V. POSI 5. V. LIN 6. V. SC 7. V. COMP 8. (H FREQ) D1-1
2-1: RF AGC DELAY 1. Place the set with Aging Test for more than 15 minutes. 2. Receive the a 70dB monoscope pattern. 3. Connect the digital voltmeter between the pin 2 of CP101 and the pin 6 (GND) of CP101. 4. Activate the adjustment mode display of Fig. 2-1 and press the channel button (5) on the remote control. The Fig. 2-2 appears on the display. 5. Press the channel button (1) on the remote control. 6. Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.3 ± 0.05V.
0. RETURN
Fig. 2-4
ELECTRICAL ADJUSTMENTS
2-5: HORIZONTAL SIZE NOTE: Adjust after performing adjustments in section 2-4. 1. Receive the monoscope pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Adjust the VR402 until the left and right OVER SCAN becomes 11 ± 1%. 2-6: VERTICAL SIZE NOTE: Adjust after performing adjustments in section 2-5. 1. Receive the crosshatch pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 2-1 and press the channel button (1) on the remote control. The Fig. 2-4 appears on the display. 4. Press the channel button (3) on the remote control. 5. Press the VOL. UP/DOWN button on the remote control until the center of crosshatch is square. 2-7: VERTICAL POSITION NOTE: Adjust after performing adjustments in section 2-6. 1. Receive the center cross pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Adjust the VR401 until the horizontal line of the color bar comes to approximate center of the CRT. 2-8: FOCUS 1. Using the remote control, set the brightness and contrast to normal position. 2. Receive the monoscope pattern. 3. Turn the Focus Volume fully counterclockwise once. 4. Adjust the Focus Volume until picture is distinct. 2-9: BRIGHT 2. Receive the black pattern*. (RF Input) 3. Using the remote control, set the brightness and contrast to normal position. 4. Activate the adjustment mode display of Fig. 2-1 and press the channel button (4) on the remote control. The Fig. 2-5 appears on the display. 5. Press the channel button (1) on the remote control. 6. Press the VOL. UP/DOWN button on the remote control to adjust the screen brightness from bright to dim. Then set to the completely dim point. 7. Receive the black pattern*. (Audio Video Input) 8. Press the TV/VCR button on the remote control to set to the AV mode. Then perform the above adjustments 4~6. * The Black Pattern means the whole black raster signal. Select the "RASTER" of the pattern generator, set to the OFF position for each R, G and B. "D" "C" "B" "A" Fig. 2-6 2-10: SUB TINT/SUB COLOR 1. Receive the color bar pattern. (RF Input) 2. Connect the synchro scope to pin 1 of CP101 and the pin 6 (GND) of CP101. 3. Using the remote control, set the brightness, contrast, color and tint to normal position. 4. Activate the adjustment mode display of Fig. 2-1 and press the channel button (4) on the remote control. The Fig. 2-5 appears on the display. 5. Press the channel button (4) on the remote control. 6. Press the VOL. UP/DOWN button on the remote control until the waveform becomes as shown in Fig. 2-6. 7. Press the CH DOWN button once to set to "COLOR" mode. 8. Adjust the LEVEL "A" section of Blue to the LEVEL "D" section of White by pressing the VOL. UP/DOWN button on the remote control. (Refer to Fig. 2-7) 9. If the LEVEL "A" section through "C" section are not the same compared with "D" section, adjust the LEVEL again. 10.Receive the color bar pattern. (Audio Video Input) 11.Press the TV/VCR button on the remote control to set to the AV mode. Then perform the above adjustments 3~9. 1. BRIGHT 2. CONTRAST 3. COLOR 4. TINT 5. SHARPNESS 6. OSD CONT 7. 8.
0. RETURN
Fig. 2-5
Fig. 2-7
D1-2
ELECTRICAL ADJUSTMENTS
2-11: PIN CUSHION 1. Receive the color bar pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Adjust the VR403 until the vertical line becomes straight. 2-12: VCO FREERUN 1. Receive the UHF. 2. Connect the digital voltmeter to TP201. 3. Adjust the L205 until the digital voltmeter is 3.1 ± 0.05V. 2-13: SEPARATION 1, 2 1. Receive the stereo signal (L=2KHz, R=400Hz). 2. Connect the AC voltmeter to AUDIO OUT JACK through stereo filter (L=400Hz, R=2KHz). 3. Activate the adjustment mode display of Fig. 2-1 and press the channel button (7) on the remote control. The Fig. 2-8 appears on the display. 4. Press the channel button (2) on the remote control. 5. Press the VOL. UP/DOWN button on the remote control until the output of L-CH and R-CH become minimum. 6. Press the CH UP button once to set to "SEPARATION 2" mode. 7. Press the VOL. UP/DOWN button on the remote control until the output of L-CH and R-CH become minimum. 8. Press the CH DOWN button once to set to "SEPARATION 1" mode. 9. Repeat step 5 to step 8 several times. The output difference of the between with Filter and without Filter should be more than 25dB for both L and R. 1. LEVEL ADJ 2. SEPARATION 1 3. SEPARATION 2 4. 5. 6. 7. 8. 0. RETURN
Fig. 2-8
2-14: CONSTANT VOLTAGE 1. Place the set with Aging Test for more than 15 minutes. 2. Using the remote control, set the brightness and contrast to normal position. 3. Connect the digital voltmeter to TP401. 4. Set condition is AV MODE without signal. 5. Adjust the VR502 until the digital voltmeter is 127 ± 0.5V.
D1-3
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
6 POLE MAGNETS 4 POLE MAGNETS PURITY MAGNETS Fig. 3-1
D2-1
MAJOR COMPONENTS LOCATION GUIDE
TP401 VR502
L205 TP201
TU001 CP101
J701 FB401
VR402
VR403
VR401
MAIN
FOCUS VOLUME SCREEN VOLUME
D3-1
BLOCK DIAGRAM
STEREO IC IC701 AN5829S TONE CONTROL IC IC705 M62420SP BBE IC IC320 NJM2150AM
14 24 23 22 18 19 21 3 2 2 19 9 10 7 14 20 P. CON+9V J702 J703 2 2 2 J704 Q704 BUFFER Q701, Q723 BUFFER Q703 BUFFER
1
20
7 14 10
Q320 MUTE
Q352, Q353 MUTE_SW
Q757, Q756
BUFFER
IC751 TC90A45F COMB FILTER IC 10 13 15 4
TU001 IF SDA SCL AGC 11 5 1 4
AV/S SW IC IC202 NJM2283M
11 9 1
MUTE SW Q351 CHROMA IC IC201 LA76814BM-MPB
8 46 52 CW KIL IF/RF AGC DRIVE VIF AMP AUDIO SW FM DET VIDEO DET DC VOL LIM AMF VIDEO AMP 73 NC 69 67 56 17 SW RGB OUT 18 19 VER C/D BUS V. SYNC SEP. VIDEO SW 75 33 X601 3.579545MHz Q402 Q733, Q734 H. DRIVE Q401 H. OUT
D412
Q752
BUFFER
IC351 LA4600 1 SOUND AMP IC 2 3
SPEAKER SP351
Q753~Q755
BUFFER
10 5
J705 6 4 3
Q202, Q204
3 13 8 16 5 4 2 9 8 J701 Q706 BUFFER 3 6
BUFFER
VIDEO BUFFER Q605
Q751
BUFFER CF201 SAW FILTER
77
MICON IC IC101 OEC3041B
7 CH. DOWN VOL. DOWN POWER CH. UP VOL. UP Q104 BUFFER 10 KEY1 R 19 G 20 B 21 TV MUTE 34 SCL 26 SDA 25 11 KEY2 32 REMOCON 15 CVIN 36 AV2 XT1 5 5
78 79 12 13 14 NC 49 10 9
Q604 VIDEO BUFFER Q810, Q801 RED AMP Q811, Q802 GREEN AMP Q812, Q803 BLUE AMP Q602
SPEAKER SP352
14
26
1
16 H OUT
BUFFER P. CON+9V
3
2 5 7 1 4 3 OS101
AV SW IC IC702 NJM2245M
MEMORY IC SDA SCL IC199 S-24C02BDP-11 X101 32.768KHz Q101 V-BUFFER Q102
6
9V REG. IC IC601 KIA7809PI 3 1
1st AFC
2nd AFC
30 54
XT2
6
-VS 17
H. SYNC SEP.
47
MUTE SW RESET IC IC104 PST600C AT+5.6V
1 Q105 RESET SW L503 DEGAUSS COIL 3 Q403 X-RAY TEST SW Q103 X-RAY SW Q201
35 AV1 -HS 18 13 -RES POWER 40
H-BUFFER
BUFFER
3 X-RAY Q731 MUTE SW
PUMP UP AMP + 7 5 4 3 2
V-OUT IC IC401 LA7845N
11 6 V801 CRT B G
8 R
TH501 DEGAUSS ELEMENT 3 1 F501 2 RY501 RELAY D501~D504 RECTIFIER F502 P. CON+9V Q503 Q732 MUTE SW
Heater 10 F 7
3 2
AC IN
T501
7
+B 100V DRIVE
Q502 100V DRIVE
IC402 BA05T 5V REG. IC 1 3
L402, L403
DY
+B ADJ.
VR502
Q507 FEED BACK SW.
IC506 ON3171R FEED BACK 1 3
12
V. POSI VR401
Q405
3
SW REG. IC IC501 STR-F6626 Q504
15
1
3
Q501 100V SW.
PIN ADJ. VR403
PIN DRIVE Q404 PIN SW
FB401 4 1 9 2 5 10 F S HV
RELAY DRIVE
5V POWER REG. IC IC502 KIA7805PI
AT+5.6V
P. CON+5V
E-1
H. SIZE VR402
E-2
PRINTED CIRCUIT BOARDS MAIN/CRT/COMB (INSERTED PARTS)
SOLDER SIDE
CC801 C807 R801 R821 R803 C806 C811 Q812 D803 Q810 CD802 W086 C813 W087 C650 W826 W825 W824 D608 R627 C651 CF201 CP802A R817 C804 D801
CP805 C355 W828 CP806 R831
CP802B R819 R812_1 C805 Q811 Q802
C812
R810_1
W865
L202 C213
W005 L751 L706 W001
R802
R811_1 C810 L803 Q801 W870 W871 W083 W081 W080 W079 W076 W075 W074 L802 R808
W872 C635 R602 R601 C203 C204 C202 C228 L205
C211 S806X
C217
W002 CP702 C219 C763
TP805 R829
Q803 L804
TP806 R806
S802X W031 S801X TU001
D606
C644
L201
J704 W839
CP803B
C808
D802 L801
TP804 R828 R813 R804
D610 C617 D605 W817 R607
W084 C618 C637 W082
R815
R814 W154
R830
W147
J8 01
CP804 CP351
C608_1 TP201 C215
L753
R643
W078
DL751
W874
R609
C324 C322
R605
C625
C706
C004
W142
C358
C364 W098
C615 C628
R212 L001 C784 R750 W863 W051 W050 C002
R213
R644
L754
R611
D602 W095
X601 C649 C646 L601
W834 W139 W875 W155
C620
TP101 W019 D705
Q403
W140
R405
W810
C320
W124 C375 W122 R360 C365 IC351
R180 R181 IC199
C750
R424 W092 W093
R408
C777 C705 CP101
R129 C627
D202
W030
C623
C229
R114
C721 W849 W018 W016 W017 J701
W046
D401
W094
J703
C323
W851 C356
D402
W049
D603
C105 W088 W121 CP703 W150
R125 W047 W044 W045 W043 W091 W089 W090 W048 C655
CP601
D201
C717
C321
W876
L752
W156 HS351 C374
W136
R359 R354 C357 C352 R355 R702 R145 W115 TP702 X101 R701 W118 W120 W119 C111 D101 IC104 C501 C121 R110 C102 C106 W116 W109 C414
C231
W873
W011 W036 W041 W151 W040
R407_1
J702 W816 C748 C792 C782
C762 W803 C754 C232 C707 C764 CP704 D713
W042
C209
C233
W039
W012
W014
W852
C418
C220 C726
L704
C429 C422 C430 R416 C417 R412 R434 S801Y C425 C423
R450
D704
W035
W034
W037
W033
W026 L705 W010 W008 W009
W038
W032
W114
IC705
R791 R793 C716 C815
W006
W007
S805X
W149
C720 L701 C709 TP701 C740
R141 D103 R136 D102 C729 C134
C728
C404
R431
L702
C123
C781 C749 W143 C793
C120 W108
R417
R410
R432
C426
W025 R778
C230
W056
L703
OS101
C725 D708 C708 C719
W859 R133 W850 C103
C737
R418 D403 IC401
Q405 C415 W055
C747 C774
W054 IC402
C788 C712_1
D712
C790
C714 C722 C713
C730
7A125V
S802Y D707 C715 Q502 C541
C731
C732
C427
C433 W148
C786 C785 C746 C626
W129
2.5A250V
W130
W053
D701
J705
W102 C718
W106 W107
W104
W101 W103
W100 W052
D702 S806Y C434 C435 W021 D703 W022 C789
W128
W808
W815
W020
W023
W024
R425
R435
FH504
F502
FH503
L402
HS503 C407 R438 R443
R409
C411
D406
L502 C519 R521 SW101
H S5 04
S807Y IC601 R616 D607 D407
S807X
R001 TP401 L505 R509 W099 R440 C517 B504 D507 D510
C521
D001
R444 R449
R437
R439
D505
Q503
C41
W065 W063
R520 R519 Q501 R535
3
W066
C540
C516 ICP505
C401
CP4
01
D411 W029
D509
C410
D415
W064
W112 C446 R526
Q404 R446 R451
C560_1
C440
D413
01 L4
CP8 CD8
S805Y
03A
4A125V
SW102 Q504 R523 R515 D516 R518
C41
Q402
2
W062
C405
03
R436 R429 R447
VR403
R401
R402
TP501
L403
D514 ICP502
C402
R423
VR402
C403
C420_1
R415 D404
4A125V
C531
C448
SW103
D408
C530 RY501 W144 L501
D410
R411
R421
W027
W028 R413 R426
C518 R503 T401 D517 IC501 R427 W158 W110 IC502
30
VR401
W061
SW104 R502 D521 T501 B505 C510 W133 D506
C4
42
W159 W059
W060
W111
W057
C431 W058
W073
C437
C441
C421
B502
R4
C514
W072
C443
W071
C526
D414
TH501
FB401
R510
6.3A125V
FH502 F501 FH501 CP501
R554
C505
R5
05
W157
R543 C507 R507
W070 R553
W132 D503
D511
HS502
HS501
D519
D520
R506 Q401 Q507 R542 D502 D508 R532 R533 R529 C549 C554 R552 W067 D528 D412 W146 W069 B401
C503
CP502
D504
R500
C515 C509 R541
C532_1
W113
R445 R448 R422
C502 SW105
D501
R501_1
IC506
R514
D518
C512 VR502
F-1
F-2
F-3
C757 R784 R785 C787 Q734 Q752 Q757 R753 Q731 Q751 C761 R757 R764 IC751 C778 R779 R786 R780 Q732 R787 R783 Q733 C759 C755 C758 C760 C756 R751 C752 R752 R772 Q756 R781 C773 R758 R763 Q753 Q754 Q755 R762 R761 R766 C775 R767 R759 C772 R765 C780 C770 R724 W845 C783 R721 R739 R735 R715 R728 R742 R709 R711 R749 Q723 R774 R720 R708 C634 R716 C011 C006 R719 C607 IC702 R741 R704 R703 Q701 R442 C818_1 C005 R776 Q706 R775 R219 R221 C227 Q202 Q204 R220 C001 R007 R006 R217 C250 C210 R204 R211 IC202 W843 R203 R208 C218 Q201 Q604 R665 R656 R664 W811 W813 Q104 Q605 R618 C216 R615 C605 C645 C647 C648 R662 R669 C221 64 R614 R210 C208 R218 R205 R206 C214 C224 1 C201 41 R624 R623 R606 C622 25 C610 R209 R201 R202 C611 R420 R419 C609 R414 R404 R406 R632 R638 R636 R653 R612 R608 R403 C632 R647 R645 R646 R648 R603 R108 C619 R613 R117 R119 C614 C616 Q105 Q602 R149 C130 C129 R106 R105 C108 R111 R109 R113 C107 Q101 Q102 R112 C109 13 R115 C110 R712 Q103 1 25 C113 R144 R118 R123 R122 R121 R146 R116 R150 R120 R148 R124
IC 10 1 IC 20 1
C765 C768 R756 R770 R771 C769 R769 C766 C751 R754 R794 R782 C767 R755
SOLDER SIDE
R710 R740 R134 R722 R727 37 R132 R130 R725 R726 Q703 Q704 R730 R732
PRINTED CIRCUIT BOARDS MAIN/CRT/COMB (CHIP MOUNTED PARTS)
R142 C101 R127 R128
C809
C742
Q353 Q352
C354_1 R391
C803 R357 R365
C802 R326
C363_1 R361 R363 R390 C366 R362 R364
R705 C743 C738 C736 Q351 R333 R332 R745 C791 R330 C329 C327 R328 IC320 R325 C711 Q320 C800 C796
C739 C735 IC701 R744 R706 R734 R792 C816 C817 C701 C702 C798 R790 C801 R789 R743 R788 C710 R131 R155 R331 C330 R329 R327 C328 R707 R733 C799 C797 C727
R723
R152
R151
R101
R322 R320
F-4
A
B
C
D
E
F
G
H
MICON/TUNER SCHEMATIC DIAGRAM
8
(MAIN PCB)
S806X S801X S802X
8
TU001 9 BTL
15
TECC1040PG31A 3 ADRES 7 BPL 1 AGC 2.0 5 SDA 4 SCL 6 V.S
14
0 NC
0 NC
27K 1W
6.3V 470 YK
0.022 B
3 GND C123
100P CH
HZ30-3L
47
100P CH
BT001 R6(E)2P T ICI TM101 SBBD00031A
C002 6.3V 100 YK
7
R133
1 Vout 2 B+
30.0
1.5 NC 6.9 NC
8.8 NC
0
5.0
4.8
4.8
ACCESSORY
12
OS101 PIC-28143SY-2
11 IF
10
8
2
13
7
50V 2.2 KA
0.0022 CH C004
R001
D001
C001
C005
C006
C011
FROM/TO STEREO/MONO I2C_SCL I2C_SDA
R006
100
AUDIO_MUTE TO COMB/FILTER
R136 39uH L001 100 R134 1K 0 CH UP 0 R007
6
6.7 X-RAY SW Q103 2SC2412K
CP703 IMSA-9130B-04 POWER AT+5.6V GND AV2 TO JACK/SOUND 1 2 3 4
12K
6
SW101 SKHVBED010
R145
10K R141
C134
1K
AV2 AV1
R155
1K
50V 1 KA R132 10K R130 10K
TO SOUND AMP AUDIO_MUTE
CH DOWN
5
SW102 SKHVBED010 R152 1.8K
C106 6.3V 1000 YK
MICON IC IC101 OEC3041B
0 48 NC
0 NC 47 NC
0 NC 0 NC 0 NC 5.0 46 45 44 43 NC NC NC IIC BUS OFF
0 42 NC
0 NC 0 NC 4.6 41 40 39 POWER NC AKB DRIVE
0 38 B.B.H
0 37 EXT MUTE AV2 AV1 36 4.6 4.6 2.0 0 5.0 5.0 R128 6.8K
C501 16V 470 YK D102 11E1N
FROM/TO TV POWER P.CON+125V AT+5.6V POWER GND FROM/TO DEFLECTION/CRT P.CON+5V
5
0 NC D103 MTZJ6.8B C105 0 NC 0 0 C109 15P CH C110 18P CH X101 32.768KHz 2.6 1 R115 2.6 390K 5.0 0 R112 2.2K 2.4 5.0 5.0 0 NC RESET IC IC104 PST600C R110 10K
NC NC
SW103 SKHVBED010 R151 R131 1K 560
X-RAY VSS XT1 XT2 VDD NC ATF KEY1 KEY2 FILTER -RES CVIN -HS -VS NC BL NC
TV MUTE NC REMOCON SD NC NC NC NC SCL NC SDA
6.3V 1000 YK C103
33
4
34
3
35
2
VOL UP
1
R127 47K R142 10K
X-RAY_TEST V_SYNC H_SYNC X_RAY R180 270 270 FROM/TO CHROMA AV1 R181 AGC IF I2C_OFF R105 2.2K R106 R146 R116 R117 27K 1K 33K 1K 3 2.2K R119 5.0 5 SDA 5.0 6 SCL 0 MODE 7 8 C101 0.01 B 5.0 MEMORY IC IC199 S-24C02BDP-11 I2C_SCL I2C_SDA OSD_BLANKING OSD_BLUE OSD_GREEN OSD_RED AFT_IN
30
29
R101
SW104 SKHVBED010
2.2K 560
7
4
VOL DOWN
R113
1 TF
31
6
32
5
NC 0 NC 0 47P SL 47P SL C129 C130 NC 0 NC 0 5.0 5.0
4
8
POWER SW105 SKHVBED010
10
11
12
R
G
3
R108 10K V.OUT
VCC
13 14 15 5.0 2.8 3.1
16 17 18 0 5.0 4.3
19 0
20 0
21 0
B
NC
22 0
24 0 NC 0
23
25
26
27
28
9
4 GND VCC
5.0 0 R148 10K R149 10K R150 10K
V-BUFFER Q101 2SC2412K 0 R144 2.2K
4.3
H-BUFFER Q102 2SC2412K 0.0022 B R118 0 C113 1.2K
3
VSS
E2
2 R111 330 50V 1 KANP R120 R121 R123 4.7K R122 560P B 4.7K R124 4.7K 4.7K 4.7K
0
4 0 0
3 0
E1 2
1 5.0 50V 4.7 KA 0
2
3 C111 5.0 D101
0
1SS133 50V 0.1 KA 50V 2.2 KA 0.033 B C102 C107
E0 1
R109 1M
C121
RESET SW. Q105 2SC2412K
5.0 0 0
C120
FROM JACK/SOUND GND R129 5.0 1K 4.8 3.8 BUFFER Q104 DTC114TKA VIDEO_OUT_1
2
R125 1K
R114
220 C108
2
CAUTION: DIGITAL TRANSISTOR 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
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
PCB010 TM9442
1
A
B
C
D
E
F
G
H
G-1
G-2
A
B
C
D
E
F
G
H
CHROMA SCHEMATIC DIAGRAM
8
C231 16V 22 KA 100P CH C221 16 1 4.5 7.5 3.8 0 4.5 AV/S SW IC IC202 0 NJM2283M 4.5 8.7 C227 10P CH 13 R221 1K C220 16V 10 KA 0 C655 50V 1 KA R662 1K 12P CH 33P CH 15uH R669 3.3K W813
(MAIN PCB)
C229 16V 10 KA
8
R656
R614
1K
H 2
L 15
R665
L601
C647
14
3
5.0
R615
H 4
7
12 5 3.8 3.8 FROM/TO JACK/SOUND VIDEO_OUT V1_C_IN V1_Y_IN S_VIDEO GND 8 4.5 7.5 7.5 3P CH C216 4.5 0 C233 50V 1 KA 6 4 VCO L205 3602038 1 2 NC 3 L
VIDEO BUFFER Q604 2SA1037AK C215 50V 0.47 KA
R664
3.3K
1K C622 0.01 B 3.579545MHz R623 24K X601
0.3
8
C648
3.1
0 VIDEO BUFFER Q605 2SA1037AK 2.5
820
1K
C623 6.3V 1000 YK R624 24K
7
0.01 Y
11
6
C649
0.01 B
50V 2.2 KA
W811
C645 15P CH
C627
10
7
TP201 JWF-50K-1
50V 0.47 KA
C620
9
4.5
R618 1M
L
H
9
C628 0.01 M C610 100P SL
FROM/TO JACK/SOUND VIDEO_IN A_OUT_MUTE_R A_OUT_MUTE_L FROM/TO COMB/FILTER
50V 0.47 KA
V/C GND
C625 16V 10 KA
C646
C605
6
P.CON+9V P.CON+9V_1 V1_SW VIDEO VIDEO_2 VIDEO_1 C706 9.8 D201 1SS133 R219 10K 8.1 BUFFER Q202 8.7 DTC114TKA 5 16V 10 KA R220 10K C218 0.001 B R203 R204 1K C211 50V 1 KA 1K W843 C210 5P CH R208 220 C217 50V 0.47 KA 7 3.0 0 NC 2.0 2.5 3.0 0 0 0 2.8 NC 0 2.4 C213 R210 C208 47K 0.01 B 0.022 M 2.5 1.5 2.9 2.9 0.01 B 0
50
0 64 65 NC
0 63 NC
0 62 NC
0 4.1 4.1 2.2 61 60 59 58 NC
49 48 47
0 0.3 3.3 2.2 5.0 2.4 57 56 55 54 53 52
46 45 44 43 42
0 51 NC
0 0 NC 2.3 2.7 0.3 3.3 3.1 50 49 48 47 46 45 44
40 39 38 37 36
11
0 43 NC
0 42 NC
0 41 NC 35 NC
34
CP601 IMSA-9130B-08 40 0 0 R612 R606 16V 22 KA C615 10K 0 2.1 0 0 1.7 R607 4.7K +-1% R605 HZ6B2L 1/4W D605 W817 R611 22K 1/4W 12 HOR GND R613 1K D602 1SS133 W810 FSC GND C_OUT P.CON+5V Y_OUT VIDEO_IN 8 7 6 5 4 3
6
41
66
X-RAY
67
68
SPLL
54
D202 1SS133 8.1 4.6 BUFFER Q204 DTC114TKA 0 R205 15K
BPF BPF LIM AMP SW ACC TRAP DELAY LINE PEAKING CORING BLACK STRETCH DEMO SYNC SEP
69
36
BPF NC SW NC NC
1
HOR VCO 1/256 HOR C/D AFC1 FBP AFC2
37
53
32
1.3K
VIDEO DET
APC1
TINT
38
52
VIDEO SW
FILTER ADJ
33
39
51
A2C PLL VIDEO TRAP AMP
CLMP
CLMP
VC0
CW KIL
A_OUT_MUTE_R 2 A_OUT_MUTE_L 1
31
70
71
5
34
REF29
28
35
CLK30
DC VOL
FM DET
1.1 COLOR CLAMP CONTRAST BRIGHT RGB MATRIX PHASE SHIFTER NC HOR OUT 33 0 0 0.4 30 2.7
5
72
2.7K
73
TO STEREO/MONO P.CON+9V TU_AUDIO_OUT 16V 10 KA C228 R217 6.8K R218 R213 10K R212 5.6K IN IN G OUTOUT 1 2 3 4 5 2.7K
74
NC
2
H_GND
27
31
32
R609 100 1/4W 0.01 B C611 C617
13 R644 150 0.01 B 1/2W P.CON+9V 100 1/2W R616
75
76
77
0 4.6
SAW FILTER CF201 M1958M
78
79
26
R206
2.2K
C214
MUTE SW Q201 DTC114EKA
80
AKB
21
C204
V1_C_IN V1_Y_IN VIDEO_2 VIDEO_1
50V 1 KA
C224 0.22uH R211 68 C250 15P CH 5P CH CHR0MA IC IC201 LA76814BM-MPB C201 0.01 B C202 6.3V 470 YK
2.2K R643 220 51 1/2W 0.01 B W824 W825 W826 10V 1000 YK C609 R636
1SS133
D606
S_IN_H
L202
0
0
0
0
0
4.8
2.5
2.4
4.9
4.9
3.9
0
0
0
0
7.8
2.6
2.6
2.6
0
0
0
0
0
9.0 3 OUT
D607
NC 1
NC 2
NC 3
NC 4
NC 5
8
9
10
11
12
13
14
15
16
17
18
19
20
6
7
8
9
10
11
12
13
14
15
16
17
18
19
NC 20
21
NC 22
NC 23
NC 24
25
7
BUS
ABL
CLAMP
22
DRIVE/CUT-OFF
50V 0.47 KA R632
R653 680
C626
2.5 NC
C637
0 2 GND
1SS133 16V 10 KA
4
0
6
VER C/D
VER RAMP
23
27
5
AFT
OSD FIX GAIN
OSD SW
24
2.7 2.3 C614 0.47
F C616
C619
RF AGC
VER SEP
HOR VOC
28
4
DC RES
29
3
IF AGC
VIF
26
25
5.0
50V 1 KA R608 3.9K C618 10V 1000 YK 0.22 F
4
R638
2.2K
12.9 1 IN FROM/TO TV POWER P.CON+9V UNREG+10V
R209
7.5K
2.0 0
27P CH
0 BUFFER Q602 2SA1037AK C644
C607 220P CH
33P CH
C608_1
R202
50V 0.47 KA
3
L201 10uH
16V 10 KA
1K
1K
1SS133
D610
R601
R602
C632
C634
100K R201 100K C203 0.1 M
9V REG. IC IC601 KIA7809PI GND
3
100K
50V 10 NP
50V 1 KA
2.2K
1SS133
C651
C635
FROM/TO MICON/TUNER AV1 IF AGC AFT_IN I2C_SDA I2C_SCL TP101
R603
D608
C650
FROM/TO DEFLECTION/CRT GND ABCL P.CON+5V V_SYNC X_RAY H_SYNC H_OUT V_OUT +12V CLAMP B.OUT G.OUT R.OUT
R648
R627 56K 1/4W
D603 11E1N
4.7K
4.7K
4.7K
R645
R646
15
16
2
17
W865 W870 W871 W872
R647
14
OSD_RED OSD_GREEN OSD_BLUE OSD_BLANKING I2C_OFF
2
I2C_SDA
I2C_SCL
TEST POINT
CP101 W-D2506#01
B.OUT
GND
AGC
1
I2C_OFF
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 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
6
5
4
3
2
A
B
C
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
TUNER VIDEO SIGNAL R.SIGNAL G.SIGNAL B.SIGNAL DEFLECTION SIGNAL AUDIO SIGNAL LUMINANCE SIGNAL COLOR SIGNAL
G
1
PCB010 TM9442
D
E
F
H
G-3
G-4
A
B
C
D
E
F
G
H
TO CRT
8
FROM/TO CHROMA CLAMP R.OUT G.OUT B.OUT P.CON+5V V-OUT IC THERMAL PROTECTION AMP + 4 5 IC401 LA7845N PUMP UP
DEFLECTION/CRT SCHEMATIC DIAGRAM
1 2 3 4 5 CD802 2E056501
(MAIN PCB)
8
GND CLAMP R.OUT G.OUT B.OUT
GND CLAMP R.OUT G.OUT B.OUT CP802A 51048-0510
TO CRT CP802B 51048-0510 5 B.OUT 4 3 2
(CRT PCB)
FROM DEFLECTION 1 CLAMP G.OUT R.OUT
7
CD801 CP82038A
VCC 6 7 29.5 2.4 100 MHE
1 2
GND 1 2 3 0 15.0 25.8 18
7
GND
2.8
2.8
CD805 CP82038A
22
1 2
C414
R414 3.3K
C415 W859 0.022 M
35V
D403 11E1N 330 1/2W 1/2W 100V 0.15 TF R412
C813
23
100V 0.15 TF R410
C429
C422
C430
C425
5V REG.IC IC402 BA05T
IN 1 GND 2 OUT 3
50V 4.7 MHE
500V 22P SL
R418 10K +-1% R419 560 R425 120 1/2W R411 220 1/2W
V801 A90AHH50X09 9 10 8 6 11
50V 1 KA
R420 22K
25V 3300 MHE
R403
11K +-1%
R431
1.5 1/2W 50V 2.2 MHE
R417
TO SOUND AMP P.CON+5V
C418
R416
S801Y
1 1/2W
15K
6
18K
R G B 5 7 1
330
8.6
0
5.0
6
6.3V 470 MHE
35
34
50V 10 MHE
560 1/2W
S806Y
W850
R404
18K +-1% 4.7K
R406
100K 1/4W +-1%
8.2K
16.0
R815
R401
R405
FROM/TO MICON/TUNER
9.6 12K +-1% R408
16.1
6.2K
+-1%
100V 22 YK
5
220
35V 470 YK
R813
220
220
C434
R814
X-RAY TEST SW. Q403 DTA144ES
C433 R409
S807Y
1.5
R426 270 1/2W
C426
R407_1
S805X
1/2W
W808
R434
R432
C427
33
HS503 763WAA0133
R413 220 1/2W
V.POSI METAL VR401 1K
C417
200V 0.56 FHS
D411
R812_1 820 1/4W
C437
R429
ELH5L7120 R402 1K 1W D410 10ELS6N 315.2 1 COL
5 NC 4 3 NC 2 1
390P B
820 1/4W
C811
C812
2.7 2W
FB401 3236001R HV
390P B R811_1
21 19
1.25KV 0.018 MPP C441 BL01RN1-A63 BN 2KV 0.001 BP
BLUE AMP Q803 2SC4075-YAC
GREEN AMP Q802 2SC4075-YAC
C810
47uH 15K 2W 0607 R803 100
47uH 0607
15K 2W
470P B R810_1
HZ11B1L
12K +-1%
CP401 B06B-DVS-L
L804
L803
820 1/4W
2KV 0.001 BP L401
10ELS6N
P.CON+5V V_SYNC X-RAY_TEST X_RAY H_SYNC
5
1SS133 D803 D802 R424 7.8 132.2 R808 7.8 134.6 R806 D801 C402 6 1SS133 1SS133 TO DY 7.8 134.2 L802 47uH 0607 R804 15K 2W
HZ27-1L
D401
D402
7.3
7.3
7.3
RED AMP Q801 2SC4075-YAC
C440 10K 1/4W 10K 1/2W 500V 470P B
B401
C802 R801 47P CH 100
0.0022 C443
D414 T401 ETH19Y197AY 5 1 4 11EQS04N
C431
4
27.0
V_SYNC X_RAY V_OUT H_OUT ABCL H_SYNC GND +12V
315.2 3 2
100
6 2
R802
FROM/TO CHROMA
C420_1 1KV 0.001 B
200.5 123.5
VIDEO B+
F S GND 0 11 ABL 7 7.2 FOCUS SCREEN C806 TO CRT 360P SL R821 220 BLUE AMP Q812 2SC1740SP 1/4W 2.5 TP806 3.1 7.3 C805 220P B R819 220 37 TP805
TP804 C809 47P CH C804 220P B R817 220 2.4
4
0.3 0
H.DRIVE Q402 2SC2621
28.7
3
2
PP
R430
130.0
1 0
C803 3.0 2.4 47P CH 7.3
0
D412 FMV-3FULF027-102
0.033
20
100 1/4W R427
0.15
1W 0
C442 2KV 220P BP
C421
27.2 7.4 0 12.0 25.2
H.OUT Q401 2SD2580-CA
R451 R446
AFC 9 HEA 10 TER 8 4 3 GND E12 E25
3.0 7.3
E8
2.7K 1/4W
2.7K
1/4W
R422 TP401 S805Y
330P B R830
5
8.4 C807
38
GND 8
GREEN AMP Q811 2SC1740SP
RED AMP Q810 2SC1740SP
R829
3
2.7K
R440 2.7K 7W
C446 160V 1 MHE
C404 16V 470 YK 2 1
27K 1/4W D408 10ELS6N C403 500V 0.001 B 1 2 FROM DEFLECTION CP806 TS-80P-02-V1 GND CP805 TS-80P-02-V1 1 2 FOCUS FROM DEFLECTION CP804 005P-2100 SCREEN 1 4 3 2 1 HEATER GND GND 180V CD803 2E046501 CP803B 4 3 2 1 51052-0400 GND_A GND_A HEATER GND GND 180V GND GND GND_A GND_A GND_A
R828
36
3
3
4
D413 11E1N 250V 1 ECWF C413
R415
D407 RU2AM
560 1W D404 10ELS6N
L801
GND
GND_A
330uH 0607
L403 C8000004
0 4 0 5
250V 1 ECWF
35V 47 MHE
0 6 7 8 134.0 201.3 134.0
R437 680K
16V 470 YK
C401
C412
S807X
P.CON+125V
HS502 763WAA0125 R436 1.5K C410 50V 1 KA R438
C405
FROM TV POWER
2 680 1/4W 0.68 TF C411 PIN DRIVE Q405 7.3 2SB1134R 1 9 8 0 7 L402 D8000012 R449
3 4 5 6
R423 1 1W C448
100V 22 YK
C423
560K
PIN ADJ.
10ELS6 C407
6.8 0.5 0
270K 1/4W
C435 100V 0.1 TF
0.47 TF R450 300 1/4W
R444 100K
6.8 PIN SW Q404 2SC945
220K 1/4W
GND GND 180V CP803A 51052-0400
R439
VR403 16V 100 YK 470 2.2M
680 1/4W R447 2.2K
C808
R445
HEATER
2KV 0.001 B
R435
D406
47K 1/4W 56K
R448
R421 22K 1/4W
TO CRT
1.2M 1/2W
6.2
R443
CC801 TP-1S-05
132.1 R831
10
2
11
9
GND
J801 CVT3275-5101
F
1
2
0
PCB110 TC9301
PCB010 TM9442
R442
H.SIZE VR402 3.3K
D415 MTZJ13B
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: DIGITAL TRANSISTOR 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
R.SIGNAL G.SIGNAL B.SIGNAL DEFLECTION SIGNAL
G H
1
A
B
C
D
E
F
G-5
G-6
A
B
C
D
E
F
G
H
TV POWER SCHEMATIC DIAGRAM
(MAIN PCB)
8
FROM/TO MICON/TUNER POWER P.CON+125V +B 100V DRIVE Q503 2SC4160 127.0 126.0 R520 R521 127.0 23302.5-MB000 F502 2.5A250V 100V DRIVE Q502 2SA1371 126.8 10K 10K GND FH504 EYF-52BC
8
R515
10K
TO DEFLECTION/CRT P.CON+125V GND
160V 47 BXA
180K 1/2W
D516
7
FH503 EYF-52BC
1SS133
C541
127.0 160V 3.3 MHE
R519
C519
2.5A 250V
127.5
200V 100 MXW
10K 1/4W
R518
RELAY DRIVE Q504 2SC2001_L 0.1 0 R523 10K
0.7
7
L505
39uH
R535
4.7K
HS504 763WAA0046
0 100V SWITCHING Q501 2SC3468 0
C540
0.6
TO SOUND AMP GND SOUND+B SOUND_GND
RY501 SDT-SS-109DM
2 3
1 250V 220P KH 2.7M 1/2W +-10% C516 7A 125V ICP505 251007 7A125V 500V 470P B D505 21DQ09N D509 21DQ09N W815
CP502 TV-50P-02-A1 1 2
2
6
1
R500
C530
DEGAUSS COIL L503 D36480221AB
4
32
6
R501_1 P
2
H
1.2 10W
3
L504 ESD-R-30SD
1
D507 RM11C RM11C D501 D502
TH501 PTH451C460BG3R0Q140T
B504 200V 680 MXR 2KV 0.0022 BP BL01RN1-A63 C560_1 C507
RU2AM D510 RU2AM 100K 1/2W C521 R509 BXA 200V 220
250V 0.22 ECQUL
L506 HF57T18.5*10*10
C502 2KV 0.0022 B RM11C D504 3 1 4 2 3 1 4 2
C503 2KV 0.0022 B RM11C D503
TP501 JWF-50K-1
C517 2KV 0.0012 BP
5
C505
6.3A 125V F501 6.3A125V 23706.3 FH501 EYF-52BC 1
5
T501 8142060W L501 HWA-T9021 L502 SU16V-20030 C518 500V 470P B SW REG IC IC501 STR-F6626 CONT DRIVER GND 152.2 7 6 FB/ OCP 47K 3W 1 2.0 2 0 R505 0 B505 BL01RN1-A63 21.7 5 14 13 BP 3 197.0 11 NC 1 12 S 3 D 4 352.0 18.6 VCC 5 0 17 6.0 16 15 10.8 0 NC 31.9 127.5 0 16V 1000 MHE 0 4A 125V ICP502 251004 4A125V D514 10ELS6
AC120V_60Hz CD501 0R614919 1 BLACK WHITE BLADE WIDE
FH502 EYF-52BC
5V POWER REG IC IC502 KIA7805PI
IN 10.2 R526 0.47 1W 1 0.6
GND 2 5.2
OUT 3
TO MICON/TUNER AT+5.6V
BLACK 2 2 WHITE
1SS133
D517
C531
C526
4
10V 470 MHE
CP501 THL-P03P-B1
4
FROM/TO CHROMA P.CON+9V GND UNREG+10V
D511 R503 3.3K 1/4W +-1% BL02RN2-R62T4 11EQS04N C514
2KV 0.0027
10ELS6N
C512 0.001 M D506 35V 100 MHE 10ELS6
10 NC
C510
0.033 M C554
10K
1
4
7.3
10.1 C509 0.01 M R507 4.7K 1/2W 6.4 1SS133 D518 R543 680 1/4W R506 2.7K 1/2W
B502
3
C549
R552
FEED BACK IC506 ON3171R
D508
R502 22 1/2W 6.3A 125V 2.5A 250V
3
2
R533
390
R542
0.0022 M 7.4 6.2 FEED BACK SWITCHING 5.6 Q507 2SC945
6.3
3
D521 1SS133 4A 125V 1SS133 D519 7A 125V
+B ADJ VR502 330
0.1
1W
R541
C515
2.2K
HS501 763WAA0083 GND1
39K 1/2W
R532 330 KH
D520 1SS133
R510 120K 1/4W
2
C532_1
22K 1/2W
MTZJ5.6B
R529
R554
2.7K
D528
CAUTION:
IS THE LIVE CONNECTION
250V 0.0022
CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE 6.3A 125V(F501) ,2.5A 250V(F502) 4A 125V(ICP502) AND 7A 125V(ICP505). ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQUES D'INCEIE N'UTILISER QUE DES FUSIBLE DE MEME TYPE 6.3A 125V(F501) ,2.5A 250V(F502) 4A 125V(ICP502) AND 7A 125V(ICP505). CAUTION:ICP502 AND ICP505 ARE MANUFACTURED BY LITTELFUSE INC.,TYPE 251.
R514
270
R553
0.001 M
2
+-1%
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.
PCB010 TM9442
1
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
A
B
C
D
E
F
G
H
G-7
G-8
A
B
C
D
E
F
G
H
SOUND AMP SCHEMATIC DIAGRAM
8
(MAIN PCB)
8
FROM/TO STEREO/MONO SOUND_L
7
SOUND_R GND P.CON+5V
7
C365 0 0.2 R355 5.6K 16V 22 KA 0 50V 1 KA
R364
MUTE_SW Q352 2SC2412K
6
C364
560
6
R365 0 0.2 0 560
FROM DEFLECTION/CRT P.CON+5V
MUTE_SW Q353 2SC2412K SOUND AMP IC IC351 LA4600
5
OUTPUT GND RIPPLE FILTER VCC P.P STAND-BY ATT. INPUT GND
5
1 C366 1 B R360 1K
3.4
2
0
3
3.4
4
13.9
5
6.9
6
9.8
7
0.8
8
1.4 R357 10K
9
0
10
1.4
C358
R363 1K 50V 2.2 KANP
50V 2.2 KANP R390 220 W834 MHE W828 R391 220 R362 100 C355 16V 1000 ZL W839 16V 47 MHE 0.01 B C356 16V 1000 ZL CP351 TID-X04P-Z1BK SP_OUT_L+ SOUND_GND SOUND_GND SP_OUT_R+ 1 2 3 4 1 2 3 4 CD351 CH14396B SP352 C909-10-04B SPEAKER SPEAKER
FROM TV POWER SOUND_GND 25V 1000 ZL C375
SP351 C909-10-04B
C363_1
0.01 B C352
4
50V 4.7
SOUND+B W816 GND C374
4
C354_1
R361
100
FROM MICON/TUNER R354 AUDIO_MUTE 10K 2.9 0 0 MUTE SW. Q351 2SC2412K
3
1.5K 1/4W
HS351 763WAA0131 R359
C357
3
2
2
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
PCB010 TM9442
1
1
A
B
C
D
E
F
G
H
G-9
G-10
A
B
C
D
E
F
G
H
JACK/SOUND SCHEMATIC DIAGRAM
8
FROM CHROMA P.CON+9V 100uH
(MAIN PCB)
L703
8
TO STEREO/MONO FRONT_AUDIO_L FRONT_AUDIO_R
J704 JPJ1023-01-020 3
NC
REAR_AUDIO_L REAR_AUDIO_R R733 820 R707 47K C707 16V 100 YK GND
A_IN_R
1
E
7
A_IN_L 1 2 J703 JPJ2023-01-030 H E
H
2
7
1
H
2
V_IN
R704
R740 75 R706 47K R741 R749 4.7K 8.2K
E
J702 JPJ2023-01-040 R734 470P B C710 C711 820 470P B
1K C786 16V 10 KA BUFFER Q701 2SA1037AK
4.8 R703 BUFFER Q723 2SC2412K C746 16V 47 KA 16V 10 KA 1K 4.1 1.7 1.1 R715 2K R739 C774 16V 47 KA 1.2K 4.1 0
6
6
C718
R742
R774
C785
1.8K
AV SW IC IC702 NJM2245M 6.0 2 4.6 Vin1 SW1 1 GND Vout V+ Vin3 8 0
16V 10 KA
1K
FROM/TO CHROMA
R710
47K R712
47K
W849
0.1 F
C747
7
S_VIDEO C209 GND VIDEO_IN
4.1 6 8.9 5 6.0
5
3 6.0 4.6 4 Vin2 SW2 R709 820 D704 R711 MTZJ12B
5
16V 10 KA VIDEO FROM MICON/TUNER AV2 AV1
J705 YKF51-5503 1 5
R735 MTZJ12B 470 D712
C717
4
16V 10 KA
820
4
R778 100K 100uH L705 FROM/TO CHROMA C230 C232 MTZJ12B 50V 1 KA 50V 1 KA V1_Y_IN V1_C_IN V1_SW VIDEO_2 VIDEO_1 P.CON+9V_1 VIDEO_OUT A_OUT_MUTE_R A_OUT_MUTE_L
3
R728
75
6
2
4
W845 C783
0.1 B D713
R724 J701 YKC21-7163A A_IN_R A_IN_L V_IN 6 E 9 10
3
75
3
8 7
H1
H2
H3
NC
NC
TO STEREO/MONO NC R720 1K R721 1K W863 R719 75 R750 16V 330 YK 270 C726 16V 10 KA C728 16V 10 KA AUDIO_OUT_R AUDIO_OUT_L
E
R775
R708
C721 75 16V 470 YK MTZJ12B R716 D705 1K 5.2 0 BUFFER Q706 2SA1037AK C818_1 8P CH 4.7
C750 R776 3.3K 16V 47 KA
C784
3.3K
2
2
H1
V_OUT
1
3
H2
A_OUT_L
4
H3
A_OUT_R
5
2
TO MICON/TUNER VIDEO_OUT_1 GND
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.
AUDIO SIGNAL TUNER VIDEO SIGNAL LUMINANCE SIGNAL COLOR SIGNAL
E F G
PCB010 TM9442
1
A
B
C
D
H
G-11
G-12
A
B
C
D
E
F
G
H
STEREO/MONO SCHEMATIC DIAGRAM
8
(MAIN PCB)
8
16V 10 KA R325
C321 10V 100 KA
10K
C323
W873
C327 0.033 B 15 4.8 16
R328
C329
R330 20K 4.8 4.8 4.8
20K 0.0033 B 4.8 17 4.8 18
7
11
0
12
9.5
13
4.8
14
4.8
19
20
7
BBE MUTE Q320 DTC114TKA 0 10 8.9 C320 9 8 16V 10 KA C324 7 6 5 4 3 2 1
8.9
8.9
0
4.8
4.8 C328
4.8 R329
4.8 C330
4.8 R331
4.8
4.8
16V 10 KA C322
16V 10 KA R327
10K
W875
BBE IC IC320 NJM2150AM
6
0
0.033 B 20K 0.0033 20K B
W876
6
R326
10K
W874
R320
10K R322
R332
R333
10K
36K
W851
AUDIO_MUTE I2C_SCL I2C_SDA FROM/TO SOUND AMP P.CON+5V
5
W852
FROM/TO MICON/TUNER
36K
SOUND_L SOUND_R
30
C748 50V 2.2 KA C782 16V 47 KA
5
GND R745 L702 R722 R730 180K 470 100uH C790 10V 100 KA TU_AUDIO_OUT TP701 JWF-50K-1 4.7K FROM CHROMA P.CON+9V TU_AUDIO_OUT FROM JACK/SOUND FRONT_AUDIO_R FRONT_AUDIO_L 180K 100 R702 R725 R727 R701 100 AUDIO_OUT_L 470
100 R793
R788 1K
220P B
R791
100 220P B C701
L704 22uH
R743 50V 2.2 KA 4.7K C792
R790 1.8K C796
C798 0.033 B C800
4
C702
AUDIO_OUT_R REAR_AUDIO_L REAR_AUDIO_R GND
4.4
4.2
4.4
3.4
3.3
4.4
3.7
50V 4.7 KA
50V 4.7 NP
50V 4.7 NP
4.2
50V 4.7 KA
TONE CONTROL IC IC705 M62420SP
1 REF
2 136K VR1 + + -
3 1.8K + -
4 VR3 S1
5 S3 S5 VR5
6 S7
50V 4.7 KA C743
0.047 B C738
5.5 BUFFER Q704 2SA1037AK 0
C709
C714
C716
C720
4.8
1.8M
C732 50V 4.7 KA
0.1 F C740
0.1 F R705
C736
2.3 24 STEREO IC IC701 AN5829S 23
AGC Matrix
2.3 22
2.3 21
OUT SW
2.3
DAC
NC 20
0 19
5.0 18
5.0
GND
0 17 16
3.7 15
St.PLL
3.6 14
Det Pilot Filter Noise Filter Spectral RMS Det Spectral
2.6 13
Det SAP VCA Input
3.7
R726
R732
ZAP IIC Decoder L-R Filter L+R Filter L-R Demod L+R Demod
50V 2.2 KA 4.2
3
Switch De-Emph (L-R)/SAP 75us Filter Cancel SAPout Offset Expand Cancel Wide Band Offset
8.9
4.4
3.4
3.3
4.4
0
5.0
5.0
4.2
Cancel Pilot
SIMAMP1 VOLAMP16.5K VOLAMP2 SIMAMP2 6.5K VR2 + 136K 1.8K VR4 20 19 18 17 16 REF REF S2 C797 C799
7 8 TONE AMP1 + 6.5K +
9
I2C BUS INTERFACE
6.5K
CONTROL LOGIC
TONE VR6 AMP2 15 14 13
100K
100K
S4 S6
S8
12
Filter Stereo
Filter SAP Demod SAP Det Noise
3.8
BUFFER 5.5 Q703 2SA1037AK 0
4
4.8
C729 50V 4.7 KA
0.022 0.47 B B 0 10
11
3
fH.2fH Trap Filter RMS Det Wide Band dbx De-Emph
C793
Filter Wide Band Expand Spectral
0.022 B 0.47 B R789 C801 1.8K 0.033 B R792 100K
1 0 220K C715 50V 4.7 KA R723
2 2.3 C719
3 2.3
4 2.2 50V 4.7 KA
5 2.2 C725
6 0.4
7 16V 10 TT +-10%
Vcc
31
C749 50V 2.2 KA R744 1K
8 2.4 50V 0.33 KA
9 2.4 C737
10 0.4
11 2.3 C742 16V 3.3 TT +-10%
12 3.4 0.1 F AUDIO_L TP702 JWF-50K-1
5.1 C731
MTZJ6.8B D708 50V 2.2 KA C713 MTZJ6.8B
16V 47 KA
16V 47 KA
50V 4.7 KA
50V 4.7 KA
0.001 B
0.022 B
C708
C722
C727
D707
C735
C739
2
0.1
0.1
0.022 B
0.1 F
C791
C781
C815
C816
C817
F
F
2
S802Y
C730
50V 4.7
KA
L701 100uH
CAUTION: DIGITAL TRANSISTOR
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.
AUDIO SIGNAL
PCB010 TM9442
1
A
B
C
D
E
F
G
H
G-13
G-14
A
B
C
D
E
F
G
H
COMB/FILTER SCHEMATIC DIAGRAM
8
(COMB PCB)
8
R758
0.1 B
100uH
L706
7
C770 1K
7
C773 0.01 B 5.1 BUFFER Q753 2SC2412K DL751 380R2501 10 1.5 2.1 C764 16V 100 KA R763 1K FROM/TO CHROMA CP702 IMSA-9130S-08L R764 1K 12 C219 6.3V 100 YK A_OUT_MUTE_L 1 A_OUT_MUTE_R 2 VIDEO_IN Y_OUT P.CON+5V C_OUT GND FSC 3 4 5 6 7 8 A.GND
6
100uH ELC0607
NC NC
R752
1K
2.6
C752 82P CH R751 510 0
0.01 B C762 NC 16V 47 KA D.VCC KILLER TEST BIAS1 ADin VRT VRB A.VSS D.VSS CKin V.FIL BIAS3 C.OUT BIAS2 Y.OUT A.VDD 8 9 5.2 0 6 0 C759 12 0.01 B 1.2 2.5 27P CH 4 5 3.5 10 7 0 C765 2.3 2.2 C766 0.01 B R754 100 C767 0.01 B R755 100 100P CH C780 22P CH L753 15uH C772 100P CH R757 1K R759 3.3K NC
2
BUFFER Q751 2SA1037AK R753 50V 0.47 KANP
18
1
16
3
15
4
C761
2.0
9.4
5
13
6
6
W803
L752
BUFFER Q752 2SC2412K
NC NC
7
8
9
6
R765
680 C775
C778 220P B 0.01 B
R761 9.2 47 R762 180 8.6
4.2 BUFFER Q754 2SA1037AK 2.9 8.6 BUFFER Q755 3.5 2SC2412K 0.001 B C777 R766
0.01 B 680 R767 1K
0
0.6
2.2K C757
C754
5
11
5
13 2.9 14
C755
3
0.01 B 2.9 C760 2 0.01 B 2.3 1 16V 47 KA 0
1.5
R781 L754 27uH R772 3.3K C768 180P CH C769 R756 820 47K
1K
C758
R794
R782 47K C751
15
3.5 16 5.1
BUFFER Q756 2SC2412K 8.7 8.1
4.6 R770 4.0 680
68P CH R769 18K R771 6.8K
B
4
0.01 B
C705
L751 100uH
82P B
COMB FILTER IC IC751 TC90A45F
C756
C763
BUFFER Q757 2SC2412K9.4
0.01
4
0 0.2 0 0.3 R780 10K 0.3 MUTE SW Q732 2SC2412K R779
0.3 MUTE SW Q731 2SC2412K
BUFFER Q733 2SA1037AK 0.3 5.6 R783 12K
0
10K 5.3
5.3
3
R784
BUFFER Q734 2SC2412K C787 0.1 F R785 47K
0.1 10K 1SS133
3
D701
FROM MICON/TUNER C789 16V 10 KA R786 CP704 IMSA-9131S-04L AV2 4 3 2 1 GND AT+5.6V POWER 10K
D703 1SS133 C788 16V 10 KA
1SS133
D702
R787 10K
C712_1 16V 10 KANP
2
2
PCB330 TE9A01
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.
TUNER VIDEO SIGNAL LUMINANCE SIGNAL COLOR SIGNAL
F G H
1
A
B
C
D
E
G-15
G-16
WAVEFORMS
MICON/TUNER COMB/FILTER
1
0.5V 10µs/div
6 0.5V 20 µs /div
12 10V 20 µs /div
CHROMA
2 0.5V 20 µs /div
7 200mV 5ms/div
13 200mV 20 µs /div
3 2V 20 µs /div
8
0.5V 20 µs /div
14 0.5V 10ms/div
4 2V 5ms/div
9 50mV 5ms/div
15 1V 20 µs /div
CHROMA
5 0.5V 20 µs /div
11 100mV 0.1 µs /div
16 1V 20 µs /div
NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
H-1
WAVEFORMS
DEFLECTION/CRT
17 1V 20 µs /div
22 10V 5ms /div
33 1V 20 µs /div
DEFLECTION/CRT
18 0.5V 10ms/div
23 10V 5ms/div
34 1V 20 µs /div
STEREO/MONO
19 50V 20 µs /div
30 50mV 0.2ms/div
35 1V 20 µs /div
20 2V 20 µs /div
31 50mV 0.2ms/div
36 50V 20 µs /div
TV POWER
21 200V 20 µs /div
32 50V 0.2ms/div
37 50V 20 µs /div
NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
H-2
WAVEFORMS
38 50V 20 µs /div
H-3
MECHANICAL EXPLODED VIEW
201 210 130 122
J801
127 123
201
112
210
201
113
210
127
123
PCB110 (CRT PCB)
128 201
201
202
L503
128 201
201
123
V801
210
201 114
127 123
117
128
206 127 126 124
SP352
201
203 129 205 103 109 208 209 106 108 105 209 104 109 107 208 208 PCB330 (COMB PCB) 207 129 207 102 209
203 128
132 109 208 110
125
203
206 116
203
133 PCB010 (MAIN PCB)
115
111 134
203 203
120 119 134
SP351
211 129
111 204 121 118 101 203
207 111
134
207 111
131
I-1
I-2
MECHANICAL REPLACEMENT PARTS LIST
REF. NO. PART NO.
101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 201 202 203 204 205 206 207 208 209 210 211 --------------A3I602B720 761WPA0184 761WPAA022 ------------771WPA0238 8995034000 --741WUA0021 701APJA030 7220001109 7230006856 702APA0111 711WPJA015 735WPA0484 735WPA0485 713WPA0082 722A08A050 769WSAA002 723000B097 724WNA0007 899HV3T001 762WPA0010 800WQ00038 800WQ00044 800WQ00058 A3I602B890 7240001041 800WQ00030 800WQ00045 8117540B04 8110630A24 8110630A04 8110630804 8110230A02 8116340B04 8109630802 810A130804 810B130A04
DESCRIPTION
CABINET,FRONT ASS'Y HOLDER,DECK HOLDER,M/PCB HEAT SINK HEAT SINK HEAT SINK HEAT SINK HEAT SINK METAL SPACER PLATE,JACK CORD CLIP UL CO. COATING CLIP SPRING,EARTH CABINET,FRONT SHEET,HWC SHEET,CAUTION CABINET,BACK PANEL,FRONT BUTTON,FRAME BUTTON,BASE GUIDE,REMOCON SHEET,RATING WASHER FILM,DECORATION SHEET,PVC HOLDER,ANODE WIRE HOLDER,CRT WIRE FELT SHEET FELT SHEET FELT SHEET PANEL ASS'Y SHEET,CSA WARNING FELT SHEET FELT SHEET SCREW,TAPPING (B0) SCREW,TAP TITE (P) SCREW,TAP TITE (P) SCREW,TAP TITE (P) SCREW,TAP TITE (P) SCREW,TAPPING (A) SCREW,TAP TITE (B) SCREW/WASHER (A) SCREW/WASHER (B) TRUSS BRAZIER BRAZIER BRAZIER BIND FLAT BRAZIER
9.1x22xT1
18x270xT0.5 5x50xT0.5 18x100xT0.5
12x20xT0.5 5x150xT0.5 4x20 3x12 3x10 3x8 3x10 4x20 3x8 M3x8 M3x10
8111H60C54 SCREW,TAPPING (A) 8117D30A04 SCREW,TAPPING (B0) JB5U0200 J3I60201 J3I60229 791AHA0020 792AHA0081 792AHA0082 793ACDA079 POLY & BAG INSTRUCTION BOOK INFORMATION SHEET LAMIFILM,BAG PACKAGE,TOP PACKAGE,BOTTOM GIFT BOX
GW18 6x35 WH8 BRAZIER 3x10
J1-1
ELECTRICAL REPLACEMENT PARTS LIST
REF. NO. PART NO.
! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! R001 R401 R402 R404 R405 R406 R407 R408 R409 R410 R415 R421 R423 R424 R429 R430 R434 R440 R500 R501 R505 R526 R529 R542 R543 R606 R804 R806 R808 C355 C356 C374 C402 C404 C405 C412 C413 C414 C418 C420 C421 C431 C433 C434 C437 C441 C442 C443 C446 C448 C502 C503 C505 C507 C510 C514 C517 C519 C521 C526 C530 C531 C532 C540 C541 C560 C615 C705 C808 D001 D101 D102 D103 D201 D202 R3X181273J R4X5T4104F R3K181102J R801R7472J R4X5T6183F R801R7822J R615021R5J R4X5T6123F R