Daewoo DTL- 25G6F страница 53 Скачать руководство пользователя | Manualshive

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Содержание DTL- 25G6F

Страница 1: ...Service Manual 59 66 Cm STEREO Colour Television CHASSIS CP 776 DAEWOO ELECTRONICS CO LTD http svc dwe co kr Sep 1999 MODEL DTL 25G6F DTL 25G7F DTL 28G2F DTL 28G6F DTL 28G7F DTL 28G8F...

Страница 2: ...rcuit Block Diagram 4 4 Alignment Instructions 5 5 IC Description 8 6 IC DC Voltage charts 33 7 Circuit Description 36 8 Service Parts List Recommendable Spare Parts List 41 9 Mechanical Exploded View...

Страница 3: ...pin EURO SCART jack AV input TV output RGB input 21 pin EURO SCART jack AV input S VHS input RCA type AV input jack Headphone jack 3 5 mm Remote controller R 28B07 with 2 AA type batteries Teletext 8...

Страница 4: ...io in linked with 2 0 5Vrms lmp 10 7 Blue in 0 7Vpp 3dB lmp75 8 Slow Function Switching TV 0 2V PERI 9 5 12V lmp 10 9 Green Earth 10 NC 11 Green In 0 7Vpp 3dB 12 NC 13 Red Earth 14 NC 15 Red In C In 0...

Страница 5: ...be before handling the tube The picture tube is highly evacuated and if broken glass fragments will be violently expelled 2 If any Fuse in this TV receiver is blown replace it with the FUSE specified...

Страница 6: ...Circuit Block Diagram 4...

Страница 7: ...OD R G B 5 Adjust the SCREEN VOLUME on FBT such that the highest black level voltage 145 5Vdc 4 WHITE BALANCE 1 Set the TV to NOR I mode 2 Set the R G B LEVEL to CENTER with R G B UP DOWN KEY 3 Adjust...

Страница 8: ...H 1 Apply a RETMA PATTERN signal 2 Pressing the EW KEY the WIDTH OSD appear in the screen 3 Adjust the over to make a perfect circle with VOL UP DOWN KEY 7 2 PARA 1 Apply a CROSSHATCH PATTERN signal 2...

Страница 9: ...TION SEARCH STOP S E A R C H C H S E T S Y S T E M PR VOL REMOTE CONTROLLER R 30SVC R 30SVC EW NORMAL VOL PR EFFECT BASS TREBLE BAL MIN MIN MAX MAX L R AFT AUTO TEST TTX AFT L V CENTER V SIZE V SLOPE...

Страница 10: ...Teletext features like Packet 26 handling FLOF TOP in 8 10 sheet for details 2 Feature Acquisition Feature selection via special function register Simultaneous reception of TTX VPS PDC and WSS line 23...

Страница 11: ...0 and SDA 5454 to SDA 5457 6 channel 8 bit pulse width modulation unit 2 channel 14 bit pulse width modulation unit ADC with 8 bit resolution 4 multiplexed input channels Ports One 8 bit I O port with...

Страница 12: ...XTAL1 OSCIN Input to inverting osc Amplifier 13 XTAL2 OSCOUT Output of inverting osc Amplifier 14 P4 0 ALE Not Used 15 RESET RST RESET IN ACTIVE LOW 16 P1 7 14BIT PWM Not Used 17 P1 6 14BIT PWM Not U...

Страница 13: ...N OSD Not Used 39 LCOUT Not Used 40 P3 7 TXT I O Not Used 41 P3 6 RXD Not Used 42 P3 5 T1 SYS Standard switch Meg modulated video IF Signal H Pos modulated video IF Signal L 43 P3 4 T0 POWER POWER CON...

Страница 14: ...100Year Data Retention Optional High Endurance Device Available 2 Description The AT24C16 10PC is a 16K bit serial CMOS E2 PROM internally organized as 2048x8bits The AT24C16 10PC features a 16 byte...

Страница 15: ...hat a comb filter can be applied The output signal of the video source select is externally available also as CVBS whenY C input is used External audio input Linear RGB input with fast blanking Synchr...

Страница 16: ...14 3 Block Diagram...

Страница 17: ...t limiter input V guard input red input for insertion green input for insertion blue input for insertion RGB insertion input Luminance input Luminance output B Y signal output R Y signal output B Y si...

Страница 18: ...odulation peak white black level detector Tuner AGC with adjustable take over point Alignment free quasi parallel sound QPS mixer for FM NICAM sound IF signals Intercarrier output signal is gain contr...

Страница 19: ...17 3 Block Diagram...

Страница 20: ...i SIF2 Function SIF 1 input symmetrical Input selector switch Ground SIF AGC time constant VIF input symmetrical VIF AGC time constant Take over point tuner AGC Tuner AGC output current Video output S...

Страница 21: ...Feature Black current measurement output for automatic black current stabilization ABS Single supply voltage of 200V Internal protection against positive appearing CRT flash over discharge Protection...

Страница 22: ...t short circuit of the output pins 7 and 4 short circuit of the output pins to Vp Temperature thermal protection High EMC immunity because of common mode inputs A guard signal in zoom mode 3 Block Dia...

Страница 23: ...wer dissipation at a lighter load Many protection function Pulse by pulse over current protection Over voltage protection with a latch Thermal protection with a latch These protection functions are in...

Страница 24: ...release voltage Thermal shutdown operationg temperature Terminal 4 5 4 5 4 5 4 5 1 5 1 5 1 5 1 2 4 5 4 5 4 5 MIN 14 4 9 45 0 68 1 3 1 2 20 5 6 6 140 TYP 16 100 0 73 1 45 1 35 22 5 MAX 17 6 11 30 100...

Страница 25: ...voltage value Output 2 can be disabled by TTL input Short circuit and themal protections are included in all the versions 2 Feature output currents up to 0 75A F 2 2 output 1 with Reset facility outp...

Страница 26: ...Thermal overoad protection Short circuit protection to gnd 2 Description The TDA7269 is class AB dual Audio power amlifier assembled in the Multiwatt package specially designed for high quality sound...

Страница 27: ...log and digital TV sets TWO selectable analog inputs Automatic Gain control for analog input All demoudlation and filtering is performed on chip and is individually programmable Adjustment of volume b...

Страница 28: ...two pairs of sin cos functions Two programmable increments to be divided up into Low and High part determine frequency of the oscillator which corresponds to the frequency of the desired audio carrie...

Страница 29: ...CCU to switch the TV set to the actual sound mode control information on the NICAM mode and bit error rate are supplied by the the NICAM Decoder It can be read out via the I2 C Bus Analog Section and...

Страница 30: ...g prepared the signals that way the channel selector makes it possible to distribute all possible source signals to the desired output channels Of special importance is the ability to route in an exte...

Страница 31: ...Digital power supply 5V 19 DVSS Digital ground 20 S_DA_OUT SBUS data output FM NICAM test 21 FRAME NBUS frame 22 N_CL NBUS clock 23 N_DA NBUS data 24 RESETQ Power on reset 25 DACA_R Analog output AUX...

Страница 32: ...input2 in left 50 SC2_IN_R Scart input2 in right 51 ASG1 Analog Shield Ground1 52 SC1_IN_L Scart input1 in left 53 SC1_IN_R Scart input1 in right 54 VREFTOP Reference voltage IF A D converter 55 MONO_...

Страница 33: ...n set 3 levels of subroutine nesting 1 bit output port for a large current REMOUT signal operating frequency 300kHz 1 MHz instruction cycle 12 5 usec 480kHz CMOS process single 3 0 V power supply stop...

Страница 34: ...an be set or reset pin by pin independently The output structure is N channel open drain 11 REMOUT remote control signal output port which has high current driving capability 12 OSC 2 oscillator outpu...

Страница 35: ...0 7 5 0 8 0 9 1 8 10 1 8 Pin No V DC 11 2 5 12 2 5 13 2 5 14 1 3 15 1 3 16 1 3 17 1 3 18 5 0 19 0 20 3 5 Pin No V DC 21 0 22 0 23 0 24 5 0 25 0 26 0 27 0 28 1 5 29 1 5 30 0 Pin No V DC 31 0 1 32 0 33...

Страница 36: ...5 32 1 6 33 5 1 34 0 35 0 36 4 8 37 5 0 38 4 5 39 4 5 40 5 0 Pin No V DC 41 0 42 5 0 43 2 1 44 5 0 45 0 7 46 5 0 47 0 48 0 49 0 50 0 Pin No V DC 51 2 5 52 0 4 TDA 7269 I605 Pin No V DC 1 14 0 2 0 3 1...

Страница 37: ...10PC I702 7 STR F6654 I801 Pin No V DC 1 2 6 2 0 1 3 286 9 4 17 4 5 0 8 TDA 8133 I801 Pin No V DC 21 0 22 0 23 0 24 0 25 2 3 26 1 8 27 0 28 5 1 Pin No V DC 21 9 4 22 11 2 23 3 1 24 1 9 25 0 26 5 1 27...

Страница 38: ...At the AFC are possible AFCcurve rising or falling and AFC off A practicable VCO alignment of the external coil is the adjustment to zero AFC output current at Pin 22 At center frequency the AFC outpu...

Страница 39: ...ted video IF signals standard switch in L mode AFC Switch The AFC output signal at Pin 22 can be controlled by a switching voltage at Pin 19 It is possible to select an AFC output signal with a rising...

Страница 40: ...en the H90 signal requires 180 phase shift on alternate lines This is realised with the H 2 switch before the R Y demodulator It is not active during demodulation of NTSC signals The B Y R Y baseband...

Страница 41: ...for the 3 guns tracks automatically with the white point adjustment so the back ground colour is the same as the adjusted white point At switch on of the TV receiver the black current stabilization ci...

Страница 42: ...djusted with the value of C408 The beam current limiting information BeamCurr is derived from the foot of the H V winding of the FBT This is connected via resistor to 8V As the beam current increase t...

Страница 43: ...LECTRO 50V RHD 6 8MF 16X35 5 C303 CMXM2A104J C MYLAR 100V 0 1MF J TP C304 CMXM2A104J C MYLAR 100V 0 1MF J TP C305 CEXF1E471V C ELECTRO 25V RSS 470MF 10X16 TP C310 CMXM2A104J C MYLAR 100V 0 1MF J TP C3...

Страница 44: ...RSS 3300MF 16X31 5 C817 CEXF1E101V C ELECTRO 25V RSS 100MF 6 3X11 TP C819 CEXF1E470V C ELECTRO 25V RSS 47MF 5X11 TP C820 CCXB3A471K C CERA 1KV B 470PF K T C821 CCXB2H101K C CERA 500V B 100PF K TAPPING...

Страница 45: ...3KCA C CHIP CERA 50V X7R 0 01MF K 2012 CC706 HCFK104ZCA C CHIP CERA 50VY5V 0 1MF Z 2012 CC707 HCBK103KCA C CHIP CERA 50V X7R 0 01MF K 2012 CC708 HCBK102KCA C CHIP CERA 50V X7R 1000PF K 2012 CC709 HCBK...

Страница 46: ...3 900V 1 5KV G972 4SG0D00103 SPARK GAP S 23 900V 1 5KV G973 4SG0D00103 SPARK GAP S 23 900V 1 5KV HP01 4859102130 JACK EARPHONE YSC 1537 I301 PTA2SW4403 HEAT SINK ASS Y 1TDA8351 7174301011 I301 1TDA835...

Страница 47: ...2SB54K 7174300811 Q403 T2SB546K TR 2SB546 K Q403A 4857024902 HEAT SINK AL EX Q403B 7174300811 SCREWTAPPTITE TT2 RND 3X8 MFZN Q404 TKTC3198Y TR KTC3198Y Q405 TKTC3198Y TR KTC3198Y Q406 TKTA1266Y TR KTA...

Страница 48: ...821 RS02Z472JS R M OXIDE FILM 2W 4 7K OHM J SMALL R823 RS02Z102JS R M OXIDE FILM 2W 1K OHM J SMALL R824 RD AZ102J R CARBON FILM 1 6 1K OHM J R830 RD AZ103J R CARBON FILM 1 6 10K OHM J R831 RD 4Z300J R...

Страница 49: ...OHM J 2012 RC707 HRFT223JCA R CHIP 1 10 22K OHM J 2012 RC709 HRFT100JCA R CHIP 1 10 10 OHM J 2012 RC710 HRFT271JCA R CHIP 1 10 270 OHM J 2012 RC713 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RC715 HRFT272JC...

Страница 50: ...T801 50M4950A7 TRANS SMPS TSM 4950A7 U100 4859719430 TUNERVARACTOR EL2782 105 B W101 4851900130 GROUNDTUNER AS DS W1015 S X501 5XE4R4336E CRYSTAL QUARTZ HC 49 U 4 433619MHZ 30PPM X502 5XE3R5795E CRYS...

Страница 51: ...49 Mechanical Exploded View 25G6F...

Страница 52: ...50 25G7F...

Страница 53: ...TTON POWER SPRING DOOR DECO CTRL MARK BRAND DOOR LOCK SPK SCREW TAPPING MASK FRONT RETAINER BLACK CLOTH BLACK BUTTON NAIN PCB AS WASHER RUBBER SCREW CRT FIXING CRT CLOTH BLACK COVER BACK SCREW TAPPING...

Страница 54: ...53 28G7F...

Страница 55: ...BK 1 2 5 6 7 8 9 10 11 13 14 15 16 19 20 21 CLOTH BLACK 4857818702 FELT T0 7 L 250 W 15 2 7122401212 8 PCB A ssy cp 776 1 A66EAK071X11 CRT A ssy 1 GLASS 4857817610 CLOTH BLACK 3 FELT 300X20X0 7 HIPS...

Страница 56: ...55 Printed Circuit Board Main PCB...

Страница 57: ...POWER SOUND SIF VIDEO CVBS VERTICAL HORIZONTAL CP 776 Chassis Schematic Diagram 56...

Страница 58: ...LECTRONICS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC E mail G7F00E web dwe co kr FAX 82 32 510 7624 TEL 82 32 510 7630 PRINTED DATE S...

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