Sanyo DS24425 Service Manual Download | Manualshive

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Specifications

Power Rating . . . . . . . . . . . . . . . . . . . . . 120V, 60Hz

78W (Avg), 2.0A (Max)

Antenna Input Impedance . . . . . . . . . . . . . . . . . 75

Ω

UHF/VHF/CATV

Receiving Channel . . . . . . . . . . . . . . . . 2 - 13 (VHF),

14 - 69 (UHF),

01, 14-94, 95-125 (CATV)

Remote Ready . . . . . . . . . . 33 Key Remote Control
Sound Output . . . . . . . . . . . . . . . . . . . . . . 1.0 W/CH
Intermediate Frequency

Picture IF Carrier . . . . . . . . . . . . . . . . . . 45.75MHz
Sound IF Carrier . . . . . . . . . . . . . . . . . . 41.25MHz
Color Sub Carrier . . . . . . . . . . . . . . . . . 42.17MHz

Picture Tube . . . . . . . . . . . . . . . . . A59QDF891X(ST)
Semiconductors

Integrated Circuits. . . . . . . . . . . . . . . . . . . . . . . . 8
Transistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Except within Tuner and RC Pre-Amp.

Cabinet Dimensions

Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 677mm
Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . 524mm
Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480mm

REFERENCE No.

SM

780092

DS24424, H2BAM, PRODUCT CODE 111370380

Contents

Safety Instructions . . . . . . . . . . . . . . . . . . 2
Service Adjustments . . . . . . . . . . . . . 3 - 10
Service Hints . . . . . . . . . . . . . . . . . . . . . . 11

Purity and Convergence . . . . . . . . . 12 - 13
Mechanical Disassemblies. . . . . . . . . . . 14
Chassis Electrical Parts List . . . . . . 15 - 22
Cabinet Parts List . . . . . . . . . . . . . . . . . . 23
Component and Test Point

Locations . . . . . . . . . . . . . . . . . . . 24 - 27

Schematic Insert . . . . . . . . . . . . . . . 29 - 36

Schematic Notes . . . . . . . . . . . . . . . . . 29
Pin Layouts . . . . . . . . . . . . . . . . . . . . . 29
Capacitor and Resistor Codes . . . . . . 29

Block Diagram . . . . . . . . . . . . . . . 30 - 31

Voltage Charts . . . . . . . . . . . . . . . 30 - 32
Waveforms. . . . . . . . . . . . . . . . . . . . . . 32

Schematic Diagrams . . . . . . . . . . 33 - 36

SERVICE MANUAL

Remote Control Color
Television

DS24424

(U.S.A.)

(CANADA)

ORIGINAL VERSION

Chassis No. 24424-00

NOTE: Match the Chassis No. on

the unit’s back cover with
the Chassis No. in the
Service Manual.

If the Original Version
Service Manual Chassis
No. does not match the
unit’s, additional Service
Literature is required. You
must refer to “Notices” to the
Original Service Manual
prior to servicing the unit.

AS

FILE NO.

1
2
3
...
»

Summary of Contents for DS24425

Page 1: ...Service Adjustments 3 10 Service Hints 11 Purity and Convergence 12 13 Mechanical Disassemblies 14 Chassis Electrical Parts List 15 22 Cabinet Parts List 23 Component and Test Point Locations 24 27 Schematic Insert 29 36 Schematic Notes 29 Pin Layouts 29 Capacitor and Resistor Codes 29 Block Diagram 30 31 Voltage Charts 30 32 Waveforms 32 Schematic Diagrams 33 36 SERVICE MANUAL Remote Control Colo...

Page 2: ...binet screw heads metal overlays control shafts etc Measure the AC voltage across the 1500 ohm resistor The AC voltage should not exceed 750 mV A reading exceeding 750 mV indicates that a dangerous potential exists The fault must be located and corrected Repeat the above test with the receiver power plug reversed NEVER RETURN A RECEIVER TO THE CUSTOMER WITHOUT TAKING THE NECESSARY CORRECTIVE ACTIO...

Page 3: ... reference data for proper TV operation before attempting service adjustments 1 Disconnect the AC power cord AC 120V line 2 While pressing the MENU key reconnect the AC power cord The Service Menu display will now appear 3 Select NO 3B SCN Sub Contrast with or key Adjust the data with or key for 10 4 Select NO 3C SCO Sub Color with or key Adjust the data with or key for 15 5 Select NO 3D STI Sub T...

Page 4: ...ith or key Adjust the data with or key for 20 25 Select NO 86 CBR RF C Bypass with or key Adjust the data with or key for 00 26 Select NO 8C CBT RF C BPF Test with or key Adjust the data with or key for 08 27 Select NO 8D HR H Display Position with or key Adjust the data with or key for 24 28 Select NO 8E SBO Sub Bright Offset with or key Adjust the data with or key for 05 29 Select NO 98 DRY YUV ...

Page 5: ... 0 4A GB 00 00 00000000 Green Bias 7 0 4B BB 00 00 00000000 Blue Bias 7 0 4C RD 40 40 01000000 Red Drive 6 0 4D GD 08 08 00001000 Green Drive 3 0 4E BD 40 40 01000000 Blue Drive 6 0 4F SBI 40 30 00110000 Sub Bias 6 0 50 Not Used 51 Not Used 52 OSD 03 03 00000011 On Screen Display Contrast 1 0 53 ABL5MSD4RTS3BAT 04 0C 00001100 ABL Defeat 5 MID Stop 4 RGB Temp 3 ABL Thresh 2 0 54 CRG 12 12 00010010 ...

Page 6: ...ystem 2 0 90 DCN 00 00 00000000 YUV Sub Contrast 6 0 91 DBR 00 00 00000000 YUV Sub Bright 6 0 92 DCL 00 00 00000000 YUV Sub Color 6 0 93 DTN 00 00 00000000 YUV Sub Tint 6 0 94 DSH 00 00 00000000 YUV Sub Sharpness 6 0 95 DCG 00 00 00000000 YUV Sub Coring 6 96 DVG 00 00 00000000 YUV Sub VM Gain 5 0 97 DHS 00 00 00000000 YUV Sub E W DC 5 0 98 DRY 06 0B 00001011 YUV R Y Offset 3 0 99 DBY 70 10 0001000...

Page 7: ...ee Figure 2 The Drive Level adjustment data will be written in the Service Menu No 4C RD and 4E BD automatically 1 2 3 4 5 6 7 9 8 RB RB BB BB N A GB N A GB N A FOR RED BIAS ADJUSTMENT FOR BLUE BIAS ADJUSTMENT FOR GREEN BIAS ADJUSTMENT Figure 2 Figure 3 1 2 3 4 5 6 7 9 8 RD RD BD BD N A N A N A N A N A FOR RED DRIVE ADJUSTMENT FOR BLUE DRIVE ADJUSTMENT Note 2 Red Green Blue Bias Adjustments in Ser...

Page 8: ...MENU key reconnect the AC power cord The Service Menu display will now appear 5 Select NO 42 VS Vertical Size with or key 6 Adjust the data with or key for full scan To turn off the Service Menu display press the MENU key VERTICAL CENTERING ADJUSTMENT 1 Tune receiver to an active channel 2 Check that picture is in the center of TV screen If picture center is too low change resistor R513 from 1K oh...

Page 9: ... Check and Grayscale Adjustment must be completed before attempting high voltage Check 1 Connect high voltage voltmeter lead to ground and connect lead to anode of picture tube 2 Tune receiver to an active channel and confirm TV is operating properly 3 Eliminate the beam current by adjusting the contrast and brightness controls to minimum 4 Confirm high voltage is within 28 0 KV and 31 1 KV If rea...

Page 10: ... LEVEL ADJUSTMENT 1 Connect a signal to the antenna terminals with audio of 1 KHZ 100 modulation 2 Turn off the receiver and disconnect the AC power cord AC 120V line 3 Connect voltmeter RMS to TP317 and ground 4 While pressing the Menu key reconnect the AC power cord The Service Menu will now appear 5 Select NO 80 ATT Attenuation with the or key 6 Adjust the or key for a voltmeter reading of 400 ...

Page 11: ...failures remains uncorrected the CPU will shut off the power within three seconds Check the following if the unit is turned off by the power failure detector 1 Disconnect the AC power cord 120V AC line for at least 10 seconds 2 Connect a DC Voltmeter to the following TEST POINTS 3 Press the Power key and check for the proper voltage supplies 4 If any of these voltages is low the power failure dete...

Page 12: ...st Service Menu NO 49 RB Red Bias NO 4A GB Green Bias and NO 4B BB Blue Bias data each to 00 8 Select Service Menu NO A9 no vertical sweep 9 Adjust the Screen Control counterclockwise until the horizontal scan line is no longer visible 10 Select Service Menu NO 4A GB Green Bias and increase the data to produce a green raster If retrace lines appear reduce screen control slightly 11 Pull yoke back ...

Page 13: ...D GREEN Adjust six pole tabs angle to superimpose red blue and green vertical line Adjust six pole tabs together to superimpose red blue and green horizontal line RED GREEN BLUE RED GREEN BLUE Line movement when adjusting top of yoke in and out Figure 7 Side of Yoke Movement OUTER AREA CONVERGENCE ADJUSTMENT The outer area convergence is performed by positioning of the yoke as follows 1 Move the t...

Page 14: ...aken to keep these assemblies intact unless picture tube is being replaced Discharge the picture tube to the coating before handling the tube 1 Remove chassis see Chassis Removal instructions 2 Place cabinet s front face down on a soft surface 3 Remove the screw on each corner of the picture tube and GENTLY lift the picture tube out of the cabinet 4 Install a replacement picture tube in reverse or...

Page 15: ...0 10 W 100 10 X 40 20 Y 150 10 Z 80 20 Rated Value P Pico Farad U Micro Farad Material CERAMIC Ceramic MT PAPER Metalized Paper POLYESTER Polyester MT POLYEST Metalized Polyester POLYPRO Polypropylene MT POLYPRO Metalized Polypropylene COMPO FILM Composite Film MT COMPO Metalized Composite STYRENE Styrene TA SOLID Tantalum Solid AL SOLID Aluminum Solid ELECT Electrolytic NP ELECT Non Polarized Ele...

Page 16: ...32 0204 CERAMIC 2200P K 1K 403 263 6305 CERAMIC 2200P K 1K C609 404 075 5005 ELECT 470U M 200V 404 089 3509 ELECT 470U M 200V C612 404 086 5100 POLYESTER 0 1U J 63V C613 404 086 6503 POLYESTER 0 047U J 63V C614 404 084 5003 POLYESTER 0 01UJ 63V C622 404 084 4501 ELECT 470U M 35V C625 403 262 2308 CERAMIC 1200P K 1K 403 266 4902 CERAMIC 1200P K 1K C626 404 084 2903 ELECT 1 000U M 16V C628 404 073 9...

Page 17: ...8 6502 DIODE MPG06D 408 009 9404 DIODE 1N4002ID D490 408 047 7707 ZENER DIODE MTZJ5 6C 5 6V D501 407 005 8602 DIODE ERA15 02 407 088 6502 DIODE MPG06D 407 005 7308 DIODE EM01Z D502 407 118 2207 ZENER DIODE 1Z75 75V D503 408 047 6205 ZENER DIODE MTZJ36A 36V D601 407 005 7605 DIODE EM2B 407 013 3200 DIODE 1S1887A 408 008 8606 DIODE GP15G D602 407 005 7605 DIODE EM2B 407 013 3200 DIODE 1S1887A 408 00...

Page 18: ...66 2188 DEGAUSSING COIL L902 645 065 6712 YOKE DEFLECTION L1901 645 008 2894 INDUCTOR 5 6U K 645 016 3104 INDUCTOR 5 6U K TRANSISTORS Q001 405 011 8401 TR 2SC1740S Q 405 011 8500 TR 2SC1740S R 405 011 8609 TR 2SC1740S S 405 012 2002 TR 2SC1815 GR 405 012 2101 TR 2SC1815 O 405 012 2309 TR 2SC1815 Y 405 020 7501 TR 2SC945A PA 405 020 7709 TR 2SC945A QA 405 020 7907 TR 2SC945A RA 405 151 8705 TR 2SC5...

Page 19: ...6 TR 2SA1179 M6 405 002 6924 TR 2SA1179 M7 TB 405 134 5925 TR 2SA1037AK T146 R 405 147 2205 TR 2SA1037AK T146 S 405 163 1503 TR 2SA1179N M6 TB 405 163 2708 TR 2SA1179N M7 TB 405 173 9605 TR 2SA1235A1E 405 173 9704 TR 2SA1235A1F R001 401 256 0101 MT GLAZE 8 2K JA 1 10W R002 401 256 0101 MT GLAZE 8 2K JA 1 10W R003 401 162 2800 MT GLAZE 1 8K JA 1 10W R004 401 162 2800 MT GLAZE 1 8K JA 1 10W R005 401...

Page 20: ...RBON 5 6K JA 1 6W R503 401 150 6001 MT GLAZE 0 000 ZA 1 10W R504 401 027 8602 CARBON 8 2K JA 1 6W R505 401 006 8401 CARBON 1 5 JA 1 2W R506 401 027 5205 CARBON 680 JA 1 6W R507 401 006 8104 CARBON 1 2 JA 1 2W R508 401 027 5502 CARBON 6 8K JA 1 6W R509 401 025 4606 CARBON 18K JA 1 6W R511A 401 065 6707 OXIDE MT 150 JA 2W R517 401 162 3401 MT GLAZE 39K JA 1 10W R518 401 256 7209 MT GLAZE 18K JA 1 10...

Page 21: ...A 1 10W R1103 401 255 6500 MT GLAZE 100 JA 1 10W R1104 401 256 1405 MT GLAZE 330K JA 1 10W R1106 401 256 2709 MT GLAZE 75 JA 1 10W R1901 401 150 5905 MT GLAZE 10K JA 1 10W R1902 401 150 6209 MT GLAZE 1K JA 1 10W R1903 401 162 2800 MT GLAZE 1 8K JA 1 10W R1904 401 150 6100 MT GLAZE 2 2K JA 1 10W R1905 401 256 7605 MT GLAZE 3 9K JA 1 10W R1906 401 162 4101 MT GLAZE 5 6K JA 1 10W R1907 401 256 0408 M...

Page 22: ...OCKET CRT 8P 652 001 1472 SOCKET CRT 8P K1001 645 063 9616 JACK RCA 6 K1051 645 007 1584 SOCKET DIN 4P K1101 645 051 1271 JACK RCA 3 PS601 408 046 5209 TH PTDAA1BF3R0Q100 Q901 414 012 8600 CRT A59QDF891X ST 414 011 7208 CRT A59QDF891X ST Q901A1 610 117 0154 DY SPACER D4AK 610 117 7924 DY SPACER Q901A2 610 117 0154 DY SPACER D4AK 610 117 7924 DY SPACER Q901A3 610 117 0154 DY SPACER D4AK 610 117 792...

Page 23: ...BINET BACK 6 412 036 1805 SCREW 4X14 7 USED OR 411 078 1101 SCREW 4X14 7 USED 7 412 018 8402 SCREW 3X10 1 USED 8 610 312 3622 BUTTON UNIT 9 610 267 0851 CAP RC 10 610 299 5527 DEC SHEET 11 610 313 0781 SANYO BADGE LARGE 610 312 2373 OWNER S MANUAL 645 063 0736 RC TRANSMITTER 610 305 8177 RC BATTERY COVER CABINET PARTS LIST KEY NO PARTS NO DESCRIPTION ACCESSORY PARTS LIST KEY NO PARTS NO DESCRIPTIO...

Page 24: ...002 C001 J3401 J3402 J3404 C015 J017 R486 R489A R487 D486 J1011 J1004 R833 J144 D472 J446 R495A D422 D421 C421 R276 Q490 R499 D490 R488 C497 J492 J811 R1910 R1911 J808 J481 J809 J482 J608 R511A R489 A1901 J3471 L3401 D836 R832 R495 R472 C489 Q486 J502 L812 J842 J843 IC802 C806 C802 C811 C822 C829 D834 D843 L811 L801 R883 R884 J1013 J848 Q005 R006 Q001 J116 J117 J113 J114 C693 Q693 R694 D693 Q695 R...

Page 25: ... 125V CAUTION MAIN BOARD COMPONENTS AND TEST POINTS GRID LOCATIONS Part Loc D002 C3 D429 E2 D612 B5 D806 E3 IC001 F5 IC501P D2 IC601 C5 IC681 C6 IC801 F4 IC802 F4 IC1001 E3 IC3401 E5 Q001 D4 Q005 D4 Part Loc Q131 F3 Q132 E3 Q401 B2 Q402 C2 Q486 C4 Q490 D4 Q601 A3 Q611 A4 Q612 A4 Q613 A4 Q627 B6 Q681 C6 Q693 B5 Q695 B5 Part Loc Q831 D5 R512 E2 R513 E2 TE7 F2 TP7 F3 TJ1 C3 TJ6 D3 TP16 F3 TP50 A2 TP5...

Page 26: ...14 C612 R607 L612 R606 R611 R613 D614 L611 Q611 R615 R692 Q612 C603 C604 R107 R430 R634 C609 D001 D408 L626 J618 C623 L413 R408 T401A R605 J606 J616 R635 R630 R610 J614 L602A C630 J690 R406 R699 R498 D699 R405A R405 K1001 IC801 X141 L131 C134 C201 C203 C204 C206 Q131 R204 C518 C519 C403 C401 R411 R412 R414 C143 C148 C214 C213 C212 C211 Q132 L132 X131 X201 C869 X801 J201 R203 J202 KS J803 R804 R863...

Page 27: ...t Loc Q701 N A Q711 N A Q721 N A E E E B10B1090B 1 5 1 4 9V HEATER B R G B D1902 K701 Q701A Q701 K7Y1 R706 R726 K7U1 C742 Q721A Q711A Q711 Q721 R707 R704 R721 R711 C702 R717 R727 SCREEN R701 R724 K7S R716 K7B GND L701 PICTURETUBE SOCKET BOARD ...

Page 28: ...28 March 2004 2000 SMC Printed in U S A For parts or service contact 21605 Plummer Street Chatsworth CA 91311 U S A 300 Applewood Crescent Concord Ontario L4K 5C7 CANADA SANYO Fisher Service Corporation ...

Page 29: ...S LIST DO NOT DEVIATE FROM THE RESISTANCE WATTAGE AND VOLTAGE RATINGS SHOWN X RADIATION WARNING NOTE THIS TV CONTAINS CRITICAL PARTS TO PROTECT AGAINST X RADIATION NOMINAL 2ND ANODE VOLTAGE IS 29 1KV AT ZERO BEAM CURRENT AT 120 VOLTS AC LINE AND MUST NOT EXCEED 31 1KV UNDER ANY OPERATING CONDITION SEE HIGH VOLTAGE CHECK ON PAGE 9 1 1 1 1 TOP VIEW SIDE VIEW COUNT TERMINALS IN ARROW DIRECTION MARK E...

Page 30: ...ER FAIL ACK 26 REMOCON IN 27 IIC SDA 28 IIC SCL 29 POWER 30 STATUS 31 BUS SDA 32 BUS SCL 33 34 35 36 KEY IN 37 ABL IN 38 RF AGC 39 S SW 40 41 42 43 44 45 46 47 48 49 50 KK0 01 LZB C202 TP132 J L132 680 R506 D602 2SB764E Q005 2SB764F L623 CJ27G C508 30V D428 9V TP21 D613 1 10GJ 18KC R518 DJ1K R491 1 10GJ100C R882 16EM220 LBWA C497 2SJ22 R489 1 2CM 3 3MXU R602 1 2XJ 3 3MVA 1 2XJ 3 3MVCA EM0 22LBWA C...

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