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8KF-84H SERVICE MANUAL SE0028KF84H00 Issued:24th July 2003 GA-200 CHASSIS PAL I SYSTEM COLOUR TELEVISION MODEL 28KF-84H In the interests of user safety (required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used. CONTENTS ELECTRICAL SPECIFICATIONS ................... 3 IMPORTANT SERVICING NOTES ................. 4 CONTROLS & TERMINALS ........................... 5 ADJUSTMENT PROCEDURES .............
28KF-84H SERVICE MANUAL UPDATE LOG SHEET Technical Report No. Technical Bulletin No. Cause / Solution Part No. Page No. Application Data /Serial No. Use this page to keep any special servicing information as Technical Report (Bulletin), Technical Information, etc. If only part number changes are required, just change part number directly the part number in the Parts Listing Section. If you need more information, please refer to the Technical Report (Bulletin).
28KF-84H ELECTRICAL SPECIFICATIONS •Focus ................. High Bipotencial Electrostatic •Power Input .................... 220V-240 Volts AC 50Hz •Sweep Deflection ............................. Magnetic •Power Consumption Normal Operation (Method IEC60107) ...............100W Stand-by Operation ..........................................1.5W •Picture Intermediate frequency .......... 38.9MHz •Sound Carrier Trap ........................... 32.
28KF-84H IMPORTANT SERVICING NOTES Only qualified service personnel are allowed to carry out maintenance and repair of this receiver. Servicing of High Voltage System and CRT It is important that the static charge is removed from the high voltage system when carrying out work on the receiver. This can be achieved by connecting a 10K resistor (with a suitably insulated lead) from the CRT cavity connector to the CRT ground tag. This must be carried out with the AC supply disconnected from the receiver.
28KF-84H CONTROLS & TERMINALS HOW TO OPEN THE DOOR 8 Lift the projection at the lower right of the door with your finger in the direction of the arrow.
28KF-84H REMOTE CONTROL 1. 19. 2. 20. TV 1. Stand-by button (TV) Video 2. Power button (VCR) TV 3. 0 ~ 9 digit buttons 4. Flash back button Teletext 5. GREEN button 6. RED button TV 7. Volume DOWN button 8. MENU button 3. Teletext 4. 5. 6. 21. 22. 23. 9. 10. 11. 12. 13. 14. REVEAL button LIST button STORE button CANCEL button HALF PAGE button RESET button Video 15. 16. 17. 18. Rewind/picture search reverse Play button Pause/Still button Stop button TV 19. TV/VIDEO button 20.
28KF-84H • Use the channel up and down buttons to move between the options. • Use the volume control buttons to change the data. • To store the data, use the stand-by button on the remote control. • To exit the Service Mode, turn the receiver off using the mains switch.
28KF-84H The following geometry adjustments can be carried out.
28KF-84H Upper Corner Correction Adjust the Upper Corner Correction so that the picture is centred. The effect of this adjustment is shown in figure 6. • When the volume up button is pressed, side pincushion changes from pincushion to barrel shape. • When the volume down button is pressed, side pincushion changes from barrel shape to pincushion. • Press the stand-by button on the remote control to store. Figure 6 Lower Corner Correction Adjust the Lower Corner Correction so that the picture is centred.
28KF-84H Vertical Bow Adjust the Vertical Bow so that the picture is centred. The effect of this adjustment is shown in figure 11. • When the volume up button is pressed, the vertical bow changes to left. • When the volume down button is pressed, the vertical bow changes to right. • Press the stand-by button on the remote control to store. Figure 11 Vertical Amplitude Adjust the Vertical Amplitude so that 8% over-scan is achieved. The effect of this adjustment is shown in figure 12.
28KF-84H 2. Follow the procedure below to set the Cut Off 2.1 Adjust G2. 2.2 Tune a white pattern. 2.3 Adjust colour to minimum. 2.4 Position colorimeter in the centre of screen. 2.5 Adjust brightness and contrast to obtain a luminance of ≈20 NITS. 2.6 Operate in Service Mode and select location RED CUT OFF, GREEN CUT OFF and BLUE CUT OFF, to obtain colour coordinates: X=0.290 ± 0.015 Y=0.284 ± 0.015 To increase press volume-up button and to decrease press volume down button.
28KF-84H 4. Once this data has been set, press the stand-by button to store. 5. If another NVM value has to be changed, use the channel down button to select the page or position and repeat as necessary. Note: DO NOT change any NVM data, unless you have been advised to do so by a Sharp representative. If data is incorrectly changed, serious damage may occur to the receiver.
28KF-84H LED FLASHING CODES This model is not provided with stereo led, so to let “flashing codes” for IC failures detection when the TV set does not work, we offer the next solution: • The detection of failure will be made with an external LED. • The output of the flashing code will be via AV1 (pin 10). • Insert a generic led diode between pin 10 and ground (i.e. pin 5) as shows the below picture.
28KF-84H PRINTED WIRING BOARDS F7351N5 Mother Unit PWB. Component side.
28KF-84H F7351N5 Mother Unit PWB. Component side. . L352 J29 C362 D306 L320 C376 L353 J16 R387 6 J24 C728 T701 D728 5V R776 J40 IC702 17 IC708 D1010 JF23 IC305 D740 D753 D608 J48 R738 1.
28KF-84H J6 C390 J11 J8 C727 C726 L702 J18 D719 (VS) + + R745 FB701 R795 J28 F702 C728 IC705 R744 R741 J37 150V C749 C708 Q502 J182 J60 R505 J61 R518 R506 R504 J63 JF59 J85 J87 C629 D637 R640 J192 C633 C644 + R655 J136 J137 C314 C315 R440 R341 C394 D436 C393 R43 R427 R438 C334 C398 R305 R319 C341 C331 K J153 D426 C403 R314 R321 C338 R320 C340 (VIA) R428 C336 C333 R306 D429 K FB302 C433 R (CR) D430 J155 J156 K R316 R310 K D410 Q407 K K C342
28KF-84H F7351N5 Mother Unit PWB. Copper side.
28KF-84H F7269N4 CRT Unit PWB Component side (H) R883 IC851 C877 R856 B Q851 1 2 3 4 C5414 B Q5407 R5415 7 R5417 (SVM) D5403 J11 C5422 R5445 R5444 R5435 R1617 R5432 R1616 J20 Q5412 C1611 (MO) C1609 C1613 R1622 R1623 E C Q1603 10 11 12 JF8 E E C Q1604 1 13 Q5410 (B) .
28KF-84H F7269N4 CRT Unit PWB Copper side 13 (B) Q1604 13 12 C889 C859 R869 + Q858 Q853 R855 Q855 D869 FB850 C861 J7 R858 R860 R863 (K) D868 J18 J8 J1 C871 C887 + R5440 C893 C5425 J15 J5 J17 2 C857 1 + R876 (Q) 1 C856 Q5415 1 IC852 C884 R884 3 C C C852 9 C5426 Q859 Q860 R874 R882 Q861 R885 J10 JF7 C865 R881 FB852 C885 R852 R892 D863 C1608 (MO) Q1603 F7269BMN4 14 + E B 1 R1621 + C R866 SG862 E 4 E R5448 C1613 C JF6 E C R853 R859 D851 E
28KF-84H F7353N3 TVTextPRO Digital Module Unit PWB Component side 8 C6069 (K) R6019 J91 IC6002 C6014 J73 J53 R6026 R6024 J24 L6005 FB6045 C6001 + K7353BM R6005 J3 FB6002 J85 J69 J64 J86 J67 R6020 J15 FB6003 R6068 J42 J41 J35 J82 J37 J54 J58 R6021 J34 J83 R6038 J21 J33 J19 R6004 J56 J57 J32 L6006 1 J52 R6039 L6004 J11 L6003 L6007 J90 R6063 + JL2. J10 1 ESPA¥A R6061 FB6047 J2 R6043 J8 C6052 (VI) J74 C6143 J48 J75 JL1.
28KF-84H 22 22 21 21 20 20 Copper side 23 3 2 1 23 CAUTION ! (M) T3.
28KF-84H COMPONENT LOCATION TABLES F7351N5 Mother Unit PWB Component side + **! * ! ! B! B(! B '! B ! 7! /! / ! + ! +1! +>! ! ! ! / %! ! 7 ! $! $*! $ ! $$! $'! $ ! $ ! (*! ( ! $! C ! +( +( 6 6 68> 61 6 68 61 1 6 6 6 68 69 6A ,) 6 6 4448A > >68 A999 4 4 4 4819 A19 8 > 99 A A89 1 68 16184 A41 4 166 8 6 8684 6 6 AA8 AA66A 48>8 696 >61 6 4 6 >9 69 8 A6 891
28KF-84H F7351N5 Mother Unit PWB Component side + ,)- .) + ,)- .) + ,)- .
28KF-84H F7351N5 Mother Unit PWB Copper side + 6 68 688 681 684 68A 6 6 64 6> 69 6A 6 8 9 A 61 64 6> 6 8 1 8 1 4 > 9 A 8 4 > 9 A 86 8 8 8 88 81 84 8> ,) A186 16888 81 6 44 4A6 8 64 9A146 99 A6 A 18 >89 9 9A146 4A 86 A8 6> 86 694 6 6 8 9A146 9A 64 8 986 89 19 44 6994 88 89 A >>6 9AAA 84 6 88 A> 6
28KF-84H F7351N5 Mother Unit PWB Copper side + D 6 D 6 D 61 D 64 D 6> D 69 D 6A D86 D864 D86> D16 D161 D46 D468 D464 D46> D469 D46A D4 D4 D4 8 D>68 D>61 D>6> D>69 D>6A D> 6 D> D> D> 8 D> 6 D> D> D> 8 D>A4 DA6 DA6 6 6 6 6 8 6 1 6 > 6 A 6 1 6 4 6 6 6 6 6 > 6 A ,) >666 9 4 9 116 4 419 4 6 419 4A 86 1A 19 4> 49 89 A 1 4 A6A A 94 861 9 91 88 94 46 16 >46 >18 9 696 869A8 8A>98 81> 6 AA488 6 >69 > 99 14 8 169>
28KF-84H F7269N4 CRT Unit PWB Component side + ! ! D! '! 469 46A 4 6 4 4 4 4 8 1861 186> 1869 186A 18 6 18 18 8 18 > 18 9 18 A 18 6 18 18 18 8 18 1 18 4 18 > 916 91 91 91 918 911 914 91> 91A 94 94 94 941 949 94A 9> 9>8 9>> 996 99 99 99 ,) 4A64 A > 4 > >8 4 8 >18 9 16 6> 99 4194 A6 >6 648 4 A41 6 14A> AA18 A884 8>644 >8 1 84 1 84 86> 4 9 >6 6 A4 8 8>9 84616 18494 8A 1 96>> 4>614 1
KF-84H F7353N3 TVTextPRO Digital Module Unit PWB Component side + E! '! (! C*! C ! C ! 466 46 8 46 1 46 1 46 > 468 468 461 464A 46>6 4 8 46 B 466 B 466 B 466 B 4681 B 4684 B 468> ( 466 ( 466 ( 4661 < < 6 < < < 8 < 1 < 4 < A < < 6 < < 8 < 1 < < < < 8 < 1 < 4 < > < A <86 <8 ,)944 8 6 9>6 > 6 6 6A68 4919 >A16 >666 4A916 86 94 1199 >41 4 A848 8 8A8 696A 88>96 A>1 4 1 9A 1 989 >449 86 198 6 A9 A9 A 96 16 49 8 66 9 6 946
28KF-84H F7353N3 TVTextPRO Digital Module Unit PWB. Copper side.
(L5) 29 TP602 (AA) T601 3 R614 1 TP601 C701 L701 (L2) (L7) C713 Q602 (G) C746 1 Q703 VR701 4 (H) D638 Q601 Q701 R730 L605 Q702 T702 1 (AV) 4 Q612 (F) 7 1 (MO) 4 3 R746 C799 R747 1 T701 2 (CR) 10 16 D720 TP701 + (RGB) (VIA) C728 X301 (YB) IC303 IC501 IC503 IC502 L501 C733 + IC706 (HD) IC304 Q797 X201 IC201 SF202 IC704 IC301 IC302 SF201 (SWRC) (YA) TH201 IC708 (S) 28KF-84H CHASSIS LAYOUT PWB A- Mother Unit, F7351N5 + (AV1)
28KF-84H PWB B- CRT Socket Unit, F7269N4 (H) IC851 Q5407 C (SVM) (K) Q5408 (G2) IC850 L864 (RT) L2 IC852 (MO) IC1601 (B) (Q) PWB C- TVTextPRO Digital Module Unit, F7353N3 IC6002 X6003 (K) X6001 IC6006 X6002 (YC) 3 IC6007 IC6001 1 (VI) IC6003 (YA) (YB) 30
2 4 6 (HD) KB452WJ FB452WJN0 35 B ESPA¥A (SS) COLD (YC) 1 S6702 CH(DOWN) 1 2 (A) VOL(+) 4 (SWRC) VOL(-) M6702 HOT LP6701 C6701 S6701 CAUTION (M) 3 2 1 THE ACTIVE SECTION IS INDICATED WITH THE " " SYMBOL CAUTION ! F6701 31 T3.
28KF-84H SCHEMATIC DIAGRAMS Description SAFETY NOTE: 1. DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE REPLACING PARTS. 2. SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS OPERATING. NOTE: 1. The unit of resistance « ohm »is omitted (K=1000 ohms. M= Megaohm). 2. All resistors are 1/8 watt. unless otherwise noted. 3. All capacitors are µF, unless otherwise noted (P= µµF).
28KF-84H 4 Red Output 5 Green Output 6 Blue Output 7 Video Output 8 +12V 10 V Switch 11 V Control St-By 12 Vp 13 Vertical Input 14 E-W Control 2 15 Inner Correction 16 Vertical+Input 17 9 VH (1.
28KF-84H 19 Vb (Horizontal) 20 Vc (Horizontal) 21 Headphone L Input 22 Headphone R Input 23 Speaker L Input 24 Speaker L Output 25 Speaker R Output 26 Speaker R Input 27 E-W Control 1 28 V Flyback Vertical 29 Vertical Output 30 Vertical - Input 31 IF Video Output 32 H Protection 34 33 V Protection
28KF-84H 34 H Flyback Pulse 37 Power Supply Switch Voltage 1 35 R/C Pulses 38 Power Supply Switch Voltage 2 36 +400V (Power Supply Voltage) 39 I Sense CRT 40 IF Video In 41 Analog Y Out 42 Analog U Out 43 Analog V Out 44 OSD Blanking 45 SDA5550 Data D3 46 SDA5550 Address A 47 SCL2 48 35 SDA2
28KF-84H 49 52 SCL 3B at SDA5550 pin SDA1 55 SDA 5550 6MHz Xtal Output 58 VSP9402 20.25 MHz Xtal Input SDA at SDA5550 pin 51 SCL1 53 SDA5550 video In 54 SDA5550 6 MHz Xtal Input 56 SDA9380 24.576 MHz Xtal Input 57 SDA9380 24.576 MHz Xtal Output 59 VSP9402 20.
7 GND RT OUT 10 JF4 BC547 Q1604 BC557 Q1603 C863 10uF (16V) 39 (1W) R1623 100R R1622 470R (1W) R1621 100R +12V . (25V) C1612 220uF -13V (25V) C1613 220uF R1624 100R +13V C850 330uF (16V) +12V D869 DX0045BM D868 C5V1 EX0408 R895 3K9 . . C1614 10nF C5418 47uF (16V) D5411 C13V EX0418 C1611 1nF R1615 1M .
5 6 56nF (FZ) C738 11 1M (1/2W) R719 1M (1/2W) R754 10K BC857B VSBC857B Q704 R753 2K2 22K R727 BR100/03 SX0004BM D752 DX0579 D729 1N4937 10 220K D707 C710 22nF 100 R781 470nF CF C716 BC847B VSBC847B Q705 D714 C6V8 R752 10K EX0548BM R748 (1/2W) L701 F0108BM (1%) R726 5K6 4K7 1% R731 D730 B6V2 EX0584BM DX0551 D732 R725 3K3 1K R773 C754 100nF R782 47K C756 100nF R789 100K 250V KZ0029CE C703 10nF VX0073CE VR701 R785 100K POR701 P0001BM (1%) 470pF C718 D7
10 11 39 12 13 3K9 560 R605 +5V HOUT ABL 14 1K2 (1/2W) 470 DX0551 D644 R623 2K2 18 220nF (10V) HB 1K 4 5 BC847B VSBC847B Q607 C607 22pF DX0045 R601 22nF C632 56. (2W) DX0551 D636 1M D608 -VS 3 BA4558 2 1 6 +VS IC601 7 8 C629 68nF 15R (1/2W) XZ0214BM R787 1N4937 DX0579BM D736 R635 R633 C540 3.3 nF R651 . 3K3 R641 22K R727 R604 R760 +13V .
Page 38 IC501 IX1786 21 2 R328 150 C1044 1nF 1 IC304 M5218L VHIM5218L C385 220nF TDA7480L 383 nF C382 100nF R330 10 22uH (CF) 1nF 3 C1043 R335 100K C387 100nF L319 3V (RA) R337 10 22uH (CF) L318 . -13V +12V 8 OUTL 7 -INL 6 +INL 5 270 . 10K R665 R510 8K2 (25V) (HB) C384 1nF (TQ) R511 150 (HB) C508 560pF R334 1K R332 2K7 L302 12uH (DF) C47 EX0568 DX0551 D641 C507 4.
HFB ABL PROT HB D404 7V5 EX0549 0 R451 (AV1) GN0241 21 (500V) 20 75 19 EX0549 D403 7V5 17 C4V7 EX0544BM 16 C403 10nF 15 R407 75 EX0546 D420 C5V6 180nF (400V) FZ0240BM C617 150nF (400V) FZA073WJZZ (1/2W) 82K R627 C624 14 (CR) GN0241 D421 4V7 EX0544 18 R406 15 13 12 (F) EX0546 BC857B VSBC857B Q406 GN1505BM D411 C5V6 (250V) FZ0198BM 11 10 18K R409 9 390 R437 R439 100 R442 1K2 H 1 L605 ZA016WJ 390 (1/2W) R668 8 7 H R318 100 J141 2K2 10 (1/3W) R4
28KF-84H Schematic Diagram of TVTextPRO Digital Module Unit (F7353N3) I C6143 100nF C6141 100nF R6006 R6063 R6061 KEY 680K 100nF DX0551 R6001 100K 53 C6008 C6007 100nF D6015 H PROT SCL33 SDA33 +3.3VSTBY 470 (1%) 1K2 (1%) SDA2 C6003 100nF R6055 R6056 SCL2 VOUT AV2 AGC SMPL +2.5VSTBY KEY H100 AV1 V100 +2,5VSTBY D3 D2 Q60 BC84 VSB D4 2 1 D1 D4 4 3 D2 D3 7 5 9 6 VSS XROM VDD 2.5 VDD 3.3 10 11 12 13 14 15 8 P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.
28KF-84H Schematic Diagram of TVTextPRO Digital Module Unit (F7353N3) (K) GN0842 (RT) GN0242 FB6039 0 1 2 3 4 5 6 7 8 I +12V R6046 10K JF6014 1 2 3 Q6002 Q6003 BC847B VSBC847B 4 BC847B VSBC847B R6017 47K NC VCC S1 WP S2 SCL VSS SDA C6001 470uF R6009 3K3 8 R6005 100 6 SCL2 5 R6016 47K D4 18 D5 19 D6 20 D7 21 23 OE 24 A11 25 A9 26 A8 27 A13 28 A14 29 A17 30 A18 31 D4 D2 D6002 D6001 C3V9 EX0544BM +3.
3 4 44 5 6 Firma válida MADE L6317 12uH (CF) (HD) GN0341 R6316 390 C6336 10nF CN4 QJACKJ0101SEZZ Firmado digitalmente por ADOLFO FERNANDEZ Nombre de reconocimiento (DN): cn=ADOLFO FERNANDEZ, o=LABORATORI O, c=US Fecha: 2003.07.
45 1 2 3 I2C Q723 Q724 T701 SC 703 SWITCHED MODE POWER SUPPLY PFC IC701 Q701 T702 REG. A IF VIDEO AUDIO +5.5V -6V +150V +16V AUDIO -16V AUDIO +12V IC 706 MAIN REG. KA431 IC 707 ST-BY REG. KA431 230V AC 50Hz SF 202 SAW SF 201 SAW VIDEO AUDIO RGB +180V FRONT VIDEO AGC IC202 Y-C FUSE R L IR DETECTOR EMI FILTER MAINS AREA S-VIDEO M 1000 FRONT MODULE SCART AV-1 21 PINS +33V TUNER UV1316/A 1-2 TH 201 +5V IC 201 TDA 9886 IF +5V +150V +12V ST-BY +5.5V +12V +3.
28KF-84H TROUBLESHOOTING TABLES / / 0 * 12 1 / 2 ( . $ ( . C C ; ; # . 7 C C ( . * . ± 4 ( 6 ( 6 1 1 3 . 0 . # - ' 0 1 E! ' . A C C * . ; A - . 0 / 1 - C ! .
28KF-84H / / 0 * 12 1 * . * 4 * 2 5 * . 4 6 ) # >3 4 C ! # (7('*+ "+%! . ! C * . ± ( 16 ( 16 . 0 # 4 4 3 ( 16 3 ( 16 . C ( . # - ( 16 . 0 ( 16 3 ( 16 . C * . 1 - ( 16 . 0 ( 16 3 16A 1 C ( . 8 - ( 16 .
28KF-84H 3 * 31 * . 8 - C !3 8 - C*!3 1 9 - C*!3 9 - C*! *- # . # 3 . 0 . . $ ; 0 ; + 0 - . . . . 0 C * . 1 466 . 0 D466>3 D4664 . C * . 9 46 1 . 0 D466>3 ( 4664 . . 0 . . E! C * . ( 3 - C*! 1 . 0 .
28KF-84H / 3 12 # . # $ ; - ) ; = . ) )% - D 668 C . * 16 > 9 * . 1 9 - C*! . 0 . / : $ # * - D46 ! C . * 866 > . 0 1 1 > !3 D>A> . C ( . ; # - D>6 * . 8 C ! 8 C*! C*! . 0 ( >643 ( >683 ( >69 . C .
28KF-84H C *- . ) # )$ - D46 3 . ' ) *- . ) # - ( >6 . . 66 > 9 C . 0 D46 . 0 ( >6 . ; - '/% / ( $'*7% $'* ' " "' '/% ( '" % $ " ($ ' % ' . - ; C . 0 . / : $ # * - D46 ! . . $ . 3 + $ # # A C ! *- .
28KF-84H ICs ADDITIONAL INFORMATION TDA9886TS (IC201) Features 1 FEATURES • 5 V supply voltage • Gain controlled wide-band Vision Intermediate Frequency (VIF) amplifier, AC-coupled • Multistandard true synchronous demodulation with active carrier regeneration: very linear demodulation, good intermodulation figures, reduced harmonics, and excellent pulse response • SIF-AGC for gain controlled SIF amplifier, single reference QSS mixer able to operate in high performance single reference QSS mode and in in
52 23 (26) SIF1 18 (20) AGND 20 (22) VP SUPPLY CAGC (6, 12, 13, 14, 17, 19, 25, 28, 29, 32) 13 n.c. VPLL VIF-PLL RC VCO 19 (21) OP1 3 (1) OUTPUT PORTS DGND 7 (5) SIOMAD 12 (11) AFC AUDIO PROCESSING AND SWITCHES SOUND TRAPS 4.5 to 6.5 MHz AFC DETECTOR 21 (23) FMPLL 4 (2) MHC108 (4) 6 (3) 5 (7) 8 (18) 17 FM-PLL filter NARROW-BAND FM-PLL DEMODULATOR sound intercarrier output and MAD select 10 (9) SDA Fig.1 Block diagram.
28KF-84H TDA9886TS (IC201) Pin Description PIN SYMBOL DESCRIPTION TDA9886T TDA9886TS TDA9885T TDA9885TS TDA9885HN VIF1 1 1 30 VIF differential input 1 VIF2 2 2 31 VIF differential input 2 n.c. − − 32 not connected OP1 3 3 1 output port 1; open-collector FMPLL 4 4 2 FM-PLL for loop filter DEEM 5 5 3 de-emphasis output for capacitor AFD 6 6 4 AF decoupling input for capacitor DGND 7 7 5 digital ground n.c.
54 MONO SCART4 SCART3 SCART2 SCART1 I2S2 I2S1 Sound IF2 Sound IF1 SCART DSP Input Select ADC ADC Demodulator Prescale Prescale Preprocessing DAC SCART Output Select DAC Headphone Sound Processing DAC DAC Loudspeaker Sound Processing SCART2 SCART1 I2S Headphone Subwoofer Loudspeaker 28KF-84H MSP3410G (IC303) Block Diagram Source Select
28KF-84H MSP3410G (IC303) Pin Assignments SC2_IN_L SC2_IN_R ASG SC3_IN_R ASG SC3_IN_L SC1_IN_L ASG SC1_IN_R SC4_IN_R VREFTOP SC4_IN_L NC NC MONO_IN AGNDC AVSS AHVSS AVSS AHVSS NC NC NC NC AVSUP 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 65 CAPL_M AVSUP 66 39 AHVSUP ANA_IN1+ 67 38 CAPL_A ANA_IN− 68 37 SC1_OUT_L ANA_IN2+ 69 36 SC1_OUT_R TESTEN 70 35 VREF1 XTAL_IN 71 34 SC2_OUT_L XTAL_OUT 72 33 SC2_OUT_R TP 73 32 NC AUD_C
28KF-84H TDA7480L (IC501) 10W OUTPUT POWER: RL = 8Ω/4Ω; THD = 10% HIGH EFFICIENCY NO HEATSINK SPLIT SUPPLY OVERVOLTAGE PROTECTION ST-BY AND MUTE FEATURES SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION PDIP20 (14+3+3) DESCRIPTION The TDA7480L is an audio class-D amplifier assembled in Power DIP package specially designed for high efficiency applications mainly for TV and Home Stereo sets.
28KF-84H TDA6111Q (IC850, IC851, IC852) Block Diagram supply voltage input HIGH handbook, full pagewidth feedback output 6 9 7V MIRROR MIRROR FOLLOWERS Vbias 7 cathode transient output 8 cathode DC output C par inverting input non-inverting input 3 1 DIFFERENTIAL STAGE TDA6111Q black current measurement output 5 CURRENT SOURCE MIRROR MIRROR 4 2 MGA058 ground (substrate) supply voltage input LOW Fig.1 Block diagram.
28KF-84H SDA5550 (IC6001) CVBS ADCX4 A[0 to 15] D[0 to 7] ALE PSEN RD WR A[16 to A20] Block Diagram $QDORJ 0X[ $'& $'& 6OLFHU 0HPRU\ ([WHQVLRQ 6WDFN ,5$0 ; :'7 ; $'& LQWHUIDFH 0 6 3HULSKHUDO %XV ,QWHUIDFH Core Counter 1 3RUW /RJLF ;5$0 65$0 .[ ELW %XV $UELWHU Counter 0 Interrupt Controller &KDUDFWHU 520 .
28KF-84H SDA9380 (IC6006) Block Diagram SWITCH D/A VBLO SCP HPROT SSD VPROT PROTON SCL PROTECTION START UP I²C SDA BSOIN RESN TEST FH1_2 VSYNC HSYNC φ2 H-OUT HD V-OUT VD+ VD- EW-OUT E/W CONTROL CLL CLEXT PWM PWM PW/PH-CORR IBEAM CLKI HSAFE H35K H38K PLL AVERAGE BEAM LIMITER X1 X2 SVM RGB 2 3 CLAMP MATRIX 3 YUV Y 3 BLACK STRETCH FBL 2 FBL 1 RGB/YUV 1 SWITCH 3 CLAMP 3 MATRIX UV YUV 2 3 SATURATION CONTROL 3 YUV/RGB 0 Y 3 CLAMP 3 MATRIX UV RGB MATRIX YUV 3
28KF-84H SDA9380 (IC6006) Pin Description Pin No.
28KF-84H SDA9380 (IC6006) Pin Description Pin No.
28KF-84H SDA9380 (IC6006) FBL1 ROUT VDD(MC) B2 G2 R2 FBL2 VSS(MC) SCP BOUT GOUT SSD VSS(D) VDD(D) SVM SWITCH Pin Assignments 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 CLKI X2 X1 CLEXT TEST SUBST RESN SCL SDA VDD(D) VSS(D) HD H35K H38K PWM VSYNC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SDA 9380 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 B/V 1 G/U 1 R/Y 1 VSS(A4) V/B 0 U/G 0 Y/R 0 VDD(A4) DCI VREFC VREFN VBLO VREFH PROTON IBEAM BSOIN HSAFE VD+ VDVDD(A3) VSS(A3) VPROT HPROT E/W D/A Φ=
63 40 41 37 46 47 48 38 gin1 bin1 fbl1 rin2 gin2 bin2 fbl2 656io7 10 656io6 15 656io5 16 656io4 21 656io3 22 656io2 30 656io1 31 656io0 32 656clk 9 39 rin1 cvbs7 58 cvbs6 57 cvbs5 56 cvbs4 55 cvbs3 54 cvbs2 53 cvbs1 52 63 61 (17) (18) (13) (19) (14) 74 (41) 8 ITU656 Decoder BLANK BLANEN (23) clamping correction (22) clamping correction (21) clamping correction (5) τ (27) (25) or bypass YUV RGB 1H delay (PAL/SECAM) (7) delay control (6) Color Deco
28KF-84H VSP9402A (IC6007) Pin Description pin 9402/32 9412/42 I/O 9402/32 9412/42 remark 52 cvbs1 I CVBS input analog input 53 cvbs2 I CVBS input analog input 54 cvbs3 I CVBS input analog input 55 cvbs4 I CVBS input or Y1 analog input 56 cvbs5 I CVBS input or C1 analog input 57 cvbs6 I CVBS input or Y2 analog input 58 cvbs7 I CVBS input or C2 analog input 63 cvbso1 O analog output 62 cvbso2 O CVBS output 1 CVBS output 2 61 cvbso3 O CVBS output 3 analog o
28KF-84H VSP9402A (IC6007) Pin Description pin 9402/32 9412/42 I/O 9402/32 9412/42 remark 48 bin2 I B of U in2 analog input 38 fbl2 I Fast Blank input 2 (H2) analog input I vertical pulse for RGB input 1) 14 v 6 sda I/O I²C-Bus data 13 scl I I²C-Bus clk 7 tms I testmode select 19 adr / tdi I I²C address / test data in 24 reset I Reset input reset, when low 27 clkout O Output clock 27 MHz 59 vdd33c S supply voltage CVBS 3.
28KF-84H VSP9402A (IC6007) Pin Description pin 9402/32 9412/42 I/O 9402/32 12 vddp2 S supply voltage for digital 3.3 V pad 11 vssp2 S supply voltage for digital 0 V pad 25 vddp3 S supply voltage for digital 3.
28KF-84H PARTS LISTING REPLACEMENT PARTS Replacement parts which have special safety characteristics are identified in this manual. Electrical components having such features are identified by in the Replacement Parts Listing. The use of a substitute replacement part which does not have the same safety characteristics as the factory recommended is not permitted. Replacement parts not shown in this service manual may create shock fire, or other hazards.
28KF-84H 646A 64 6 64 64 64 64 1 64 4 64 > 64 9 64 A 64 6 64 64 64 8 64 1 64 64 64 4 64 > 64 9 648 648 6488 6>6 6>6 6>6 6>68 6>6> 6>69 6> 6> 6> 6> 8 6> 1 6> 4 6> > 6> 9 6> A 6> 6 6> 6> 6> 6> 1 6> > 6> 9 6> A 6> 6 6> 6> 6> 6> 8 6> 1 6> 4 6> > 6>86 6>8 6>8 6>81 6>84 6>8> 6>89 6>16
28KF-84H 6 6 8 6 1 6 4 6 > 6 9 6 A 6 6 6 > 6 9 6 86 6 8 6 8 6 88 6 8> 6 89 6 16 6 1 6 1 6 1 6 18 6 14 6 1> 6 19 6 1A 6 46 6 4 6 4 6 4 6 48 6 41 6 44 6 4> 6 49 6 4A 6 >6 6 > 6 > 6 > 6 >8 6 >1 6 >4 6 >> 6 >9 6 >A 6 9 6 9 6 98 6 91 6 94 6 9> 6 99 6 9A 6 A4 6 A> 686 68 > 68 68 68 616 616
28KF-84H 3 2 3 6> 1 6> 4 6> > 6> 9 6> A 6>86 6>8 6>8 6>8 6>84 6>89 6>8A 6>1 6>1 6>18 6>11 6>14 6>A4 6>A9 6>AA 6A6 6A6 6A61 6 6 68 688 681 684 68A %*6*6< 8>> EC C %B 68 %*6* % 69 )BA14 < EC C %B 68 C // < EC C B8>8 %*6* / 4 EC C %B 68 )B6 99 %*6* > EC' B 61 %*6* / 61 %*6* 64 C // 6 < EC C /
28KF-84H 61 61 61 8 61 1 61 4 61 9 61 4 61 6 61 61 8 61 1 61 4 61 > 6188 6181 6189 618A 611 6118 6111 646 646 6468 6461 646> 6469 646A 64 6 64 64 64 8 64 4 64 > 64 6 64 64 64 64 4 64 > 64 9 64 A 64 6 64 64 64 64 8 64 1 64 > 64 9 64 A 6486 648 648 6488 6481 6416 641 6418 6411 6414 641> 6419
28KF-84H 3 2 3 6>9> 6>99 6>9A 6>A6 6>A 6>A 6>A 6>A8 6>A1 6>A4 6>A> 6>A9 6>AA 69 1 6A6 6A6 6A6 6A68 6A61 6A64 6A6> 6A6A 6A 6 66A 6 6 6 > 6 A 6 8 6 1 6 4 6 A 68 688 68> 68A 616 61 61 614 6AA )&6 8 $) C < $) C < ) * %146< )&6 66 )&6 6
28KF-84H 6916 691 691 691 694 6949 694A 69> 69>8 69>> 6996 699 699 699 6998 6991 699> 69A6 69A1 469 46A 4 6 4 4 4 4 8 1861 186> 1869 186A 18 8 18 9 18 A 18 6 18 18 18 8 18 > 2 %*6* > %*6* 8>4 BCB* /* 6 < %*6* 69 %*6* 64 %*6/ % 6> EC %8> BCB* /* 6 < BCB* /* 6 < BCB* /* 6 < BC** %* E $ * /+14 < BC** %* E
28KF-84H 2 3 2 3 , 3 + 466 + 466 + 466 + 4668 + 4661 + 4664 + 466> + 4669 ) B 66E6666 ) B E6666 ) B 6 6666 ) B 6 6666 ) B 6 6666 ) B 6 6666 ) B 6 6666 ) B 6 6666 %*E (+ 6"/ 6 %*E (+ 3 "/ 6 %*E (+ "/ 6 %*E (+ "/ 6 %*E (+ "/ 6 %*E (+ "/ 6 %*E (+ "/ 6 %*E (+ "/ 6 $ $ $ $ $ $ $ $ ** * ** ** ** ** ** ** ** * ** ** ** ** ** ** %*6*6< 8>> EC C %B 68 EC C %B 68
28KF-84H B 466A B 46 6 B 46 B 46 B 46 B 46 8 B 46 4 B 46 > B 46 9 B 46 A B 46 6 B 46 B 46 B 46 B 46 8 B 46 1 B 46 4 B 46 > B 46 9 B 46 A B 46 6 B 46 B 46 B 46 B 46 8 B 46 1 B 46 4 B 46 > B 46 9 B 46 A B 4686 B 468 B 468 B 468 B 4688 B 4689 ( 466 * < 6668 < 666> < 66 < 66 > < 66 < 66 < 66 4 < 66 > < 66 < 668A < 664 < 6649 < 66>> < 66>A < 66A < 66A8 < 66A1 < 6 66 < 6 6 < 6 6 < 6 6 < 6 68 < 6 61 < 6 64 < 6 6>
28KF-84H '! $ ! (! (! 2 D ) 9 > D ) 91 +/+ 6 %66 D ) A66 / % D* 6> <$* 3 2 3 ( % '! *C$ $ ( % ' B+*' /(+( $ / + % ( % ( % (! $ %*E% 7 (++ 98% $ $ $ $ $ * ** ** *% * * *% ** * *7 $ $ $ $ $ $ $ $ *C * )) * ** ** * ** *B )) *7 * * 7 ** 8 1 * **6 1 7 B*66 <$* /( *6 8 <$* / 7 8 %$* / % D66>4 $* < ' ) 69> $* 7 * * >4
28KF-84H SERVICING NOTES 1. How to rewrite the data in NVM. The NVM (Non Volatile Memory) is a read/write device aimed to keep the data even in the absence of power. The NVM contains IC configuration data, factory abjustable parametes (geometries, color temperature, etc.) and user settings (video, audio, programs, etc.). All data are recovered every time the TV is switched on, including last changes made by the user (brightness, contrast, etc.).
28KF-84H 2.
28KF-84H SOURCE OF DOCUMENTATION 1. TDA 9886, Philips Data Sheet: TDA9885; TDA9886. I2C-bus controlled single and multistandard alignment-fee IF-PLL demodulators. Product specification. 2002 Mar 05. http://www.semiconductors.philips.com/acrobat/datasheets/TDA9885_TDA9886_1.pdf 2. MSP3410G, Micronas Data Sheet: Preliminary data sheet: “MSP 34x0G Multistandard Sound Processor Family” Edition March 5, 2001 (6251-476-4PD). http://www.micronas.com/products/documentation/consumer/msp34x0g/downloads/msp34x0g_4pd.
28KF-84H No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. SHARP ELECTRONICA ESPAÑA S.A. TV Division Engineering Dept.
