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Circuit Description

9.

Figure 9-3 Stereo audio signal processing

9.2.2

Mono

In mono sets, the signal goes via the SAW filter (position 1002/
1003), to the audio demodulator part of the UOC IC 7200. The
audio output on pin 48 goes to the audio amplifier (AN7523 at
position 7902).

The volume level is controlled at this IC (pin 9) by a
'VolumeMute' control line from the microprocessor.
The audio signal from IC 7902 is then send to the speaker and
headphone output panel.

Figure 9-4 Mono audio signal processing

TUNER

VBAT

AUDIO

12V

3.9V

3.3V

FM IF

BUFFER

NOT FOR

NAFTA

VIDEO SOURCE

SELECTION

RF ANT.

FM ANT.

EXT. AUDIO

INPUT

7801

AUDIO SOURCE SELECTION

CONTROL

EXT. AUDIO OUT

7861
7831

7834
7835

7209
7210

7901

10

1000

0265

11

1

1

1

AGC

1200 : 1202

18
19

38

INT_CVBS

EXT_CVBS

40

42

16

17

15

30

68

I2C

50:53

EXT RGB/YUV INPUT

56:58

7330

EHT

7460

H

EW

V+

V-

7471

7602

7200

POWER
SUPPLY

CL 16532016_01a.eps

120401

AUDIO
AMPL.

SAW

FILTER

SOUND

IF

DEMOD.

AUDIO DECODING

AND

PROCESSING

SELECTION

MATR. SWITCH

VISION

IF

DEMOD.

NVM

VIDEO
AMPL.

HOR.

DEFL.

+

EW

VERT.
DEFL.

µ

P

VIDEO

PROCESSING

RGB/YUV

PROCESSING

SYNC

PROCESSING

SOUND

TRAP

VIDEO

SWITCH

EXT. VIDEO

INPUT

7802

TUNER

RF ANT.

EXT. AUDIO

OUTPUT

EXT. AUDIO

INPUT

7902

10

1000

11

1

1

1

AGC

18

19

68

7602

AUDIO SWITCH

7200

AVL

FM PRE

AMP.

NOT FOR

NAFTA

AUDIO

AMPL.

SMART

SND

SAW

FILTER

SOUND

IF

DEMOD.

VISION

IF

DEMOD.

NVM

µ

P

CL 16532016_01b.eps

120401

FM ANT.

0265

www.freeservicemanuals.info

22/11/2016

Published in Heiloo Holland

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Содержание L01.1U

Страница 1: ...gram A1 50 65 70 Line Deflection Diagram A2 51 65 70 Frame Deflection Diagram A3 52 65 70 Tuner IF Diagram A4 53 65 70 Video IF Sound IF Diagram A5 54 65 70 Synchronisation Diagram A6 55 65 70 Control Diagram A7 56 65 70 Audio Amplifier Diagram A8 57 65 70 NICAM 2CS BTSC Stereo Dec Diagram A9 58 65 70 Audio Video Source Switch Diagram A10 59 65 70 BTSC NDBX Stereo Decoder Diagram A11 60 65 70 Fron...

Страница 2: ...ol Front or Side Connections Figure 1 1 Front Top control and Side I O Audio Video In 1 Video 1 Vpp 75 Ohm 2 Audio L 0 2 Vrms 10 kOhm 3 Audio R 0 2 Vrms 10 kOhm 4 Headphone 3 5 mm 8 600 Ohm 4 mW 1 2 2 Rear Connections Figure 1 2 Rear connections Monitor Out 1 Video CVBS 1 Vpp 75 Ohm 2 Audio L 0 5 Vrms 1 kOhm 3 Audio R 0 5 Vrms 1 kOhm YUV In 1 Y 0 7 Vpp 75 Ohm 2 U 0 7 Vpp 75 Ohm 3 V 0 7 Vpp 75 Ohm ...

Страница 3: ...RONT INTERFACE PANEL LINE DEFLECTION FRAME DEFLECTION A6 SYNCHRONISATION TUNER IF VIDEO SOUND IF FRONT I O FRONT CONTROL HEADPHONE BTSC NDBX DECODER A7 CONTROL µC NICAM 2CS BTSC DECODER A V SOURCE SWITCHING AUDIO AMPLIFIER REAR I O CINCH CL 26532119_050 eps 161202 A16 TILT INTERFACE TOP CONTROL PANEL SLIM CRT PANEL 2D 3LINE COMB FILTER PANEL W DAF PANEL CRT SCAVEM WIDE www freeservicemanuals info ...

Страница 4: ... circumstances for example in a living room the recommended interval is three to five years When the set is used in an environment with higher dust grease or moisture levels for example in a kitchen the recommended interval is one year The maintenance inspection includes the following actions 1 Perform the general repair instruction noted above 2 Clean the power supply and deflection circuitry on ...

Страница 5: ...Parts List Therefore always check this list when there is any doubt 2 4 3 Practical Service Precautions It makes sense to avoid exposure to electrical shock While some sources are expected to have a possible dangerous impact others of quite high potential are of limited current and are sometimes held in less regard Always respect voltages While some may not be dangerous in themselves they can caus...

Страница 6: ...Directions for Use EN 6 L01 1U AC 3 3 Directions for Use 3 1 Front Control Sets www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 7: ...Directions for Use EN 7 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 8: ...Directions for Use EN 8 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 9: ...Directions for Use EN 9 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 10: ...Directions for Use EN 10 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 11: ...Directions for Use EN 11 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 12: ...Directions for Use EN 12 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 13: ...Directions for Use EN 13 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 14: ...Directions for Use EN 14 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 15: ...Directions for Use EN 15 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 16: ...Directions for Use EN 16 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 17: ...Directions for Use EN 17 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 18: ...Directions for Use EN 18 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 19: ...Directions for Use EN 19 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 20: ...Directions for Use EN 20 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 21: ...Directions for Use EN 21 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 22: ...Directions for Use EN 22 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 23: ...Directions for Use EN 23 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 24: ...Directions for Use EN 24 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 25: ...Directions for Use EN 25 L01 1U AC 3 3 2 Top Control Sets www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 26: ...Directions for Use EN 26 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 27: ...Directions for Use EN 27 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 28: ...Directions for Use EN 28 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 29: ...Directions for Use EN 29 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 30: ...Directions for Use EN 30 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 31: ...Directions for Use EN 31 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 32: ...Directions for Use EN 32 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 33: ...Directions for Use EN 33 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 34: ...Directions for Use EN 34 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 35: ...Directions for Use EN 35 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 36: ...Directions for Use EN 36 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 37: ...Directions for Use EN 37 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 38: ...Directions for Use EN 38 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 39: ...Directions for Use EN 39 L01 1U AC 3 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 40: ...3 5 Flip the panel 90 degrees 4 with the components toward the CRT 6 Turn the panel with its rear connections toward the CRT 5 7 Slide the metal heatsink near the mains transformer 5520 underneath the right chassis bracket This secures the panel 6 Figure 4 1 Service position 1 Family Board with bracket with separate control 1 Disconnect the strain relief of the AC power cord 2 Disconnect the degau...

Страница 41: ...t the board out of the bracket it hinges at one side 4 3 4 DAF Assembly Board if present Figure 4 5 DAF panel removal 1 You can remove the complete module from the family board bracket by pressing the clamp downward 1 while sliding the module toward the CRT 2 2 Release the 2 clamps 3 to lift the board out of the bracket 4 4 3 5 Side Jack Panel Assembly Board if present Figure 4 6 Side jack panel r...

Страница 42: ...ll service unfriendly modes if present are disabled The service unfriendly modes are Timer Sleep timer Child parental lock Blue mute Hotel hospital mode Auto shut off when no IDENT video signal is received for 15 minutes Skipping of non favorite presets channels Auto storage of personal presets Auto user menu time out Auto Volume Leveling AVL Run timer maximum four digits displayed Software versio...

Страница 43: ...er menus with the SDAM mode still active in the background To return to the SDAM menu press the STATUS EXIT button When you press the MENU key in while in an SDAM submenu you will return to the previous menu In SDAM press the STATUS EXIT button to toggle the OSD except the S which indicates SDAM on and off to prevent the OSD from interfering with measurements How to store SDAM settings To store se...

Страница 44: ...antenna signal The tuner is faulty in this case line 6 the Error Buffer line will contain error number 10 Check the tuner and replace repair the tuner if necessary Black and white picture If The picture improves after you have pressed the AUTO PICTURE button on the remote control transmitter Then 1 Press the AUTO PICTURE button on the remote control transmitter repeatedly if necessary to choose PE...

Страница 45: ...een a free serial COM port of your PC and the PC connector marked with PC of the ComPair interface 3 Connect the AC power adapter to the supply connector marked POWER 9V DC on the ComPair interface 4 Switch the ComPair interface off 5 Switch the television set off and remove the AC power 6 Connect the ComPair interface cable between the connector on the rear side of the ComPair interface marked I2...

Страница 46: ...C 7520 Result voltage at pins 1 3 4 5 and 6 are about 180 V and pin 8 is 0 V The reason why the voltage on these pins is so high is that the output driver pin 6 has an open load That is why MOSFET 7521 is not able to switch Reason feedback resistor 3523 is defective Caution Be careful measuring the gate of 7521 circuitry is very high ohmic and can easily be damaged Set is in hiccup mode and shuts ...

Страница 47: ...10 SC2 R IN 40 A7 SDA 8 A7 SCL 7 25 4 26 SEL MAIN FRNT RR A13 30 R OUT L OUT A7 A5 A5 31 MAIN OUT R 24 51 52 AUDIO DEMODULATOR NICAM 2CS BTSC AM FM 3832 ERR 10 ERR 7 1831 18M432 C2 C1 63 1660 12MHz 64 7901 AN7522N STEREO 7902 AN7523N MONO 6 2 L L 8 9 VOLUME MUTE MONO AM_MONO_SOUND 1 MAINAUX_FB ERR 7 7209 7210 FM RADIO DE EMPHASIS 0280 A2 4 L A3 10 R A4 12 R R L R 4 3 2 1 0255 4 3 2 1 L L R R L L R...

Страница 48: ...X VLOT AUX 5V TO 3619 8VB TO 7101 C VLOT AUX 5V AUDIO AMPLIFIER A8 VLOT AUX 5V TO 9904 3912 8VA EW_Protection MAIN AUX_FB 3460 9420 7471 FRAME OUTPUT 7330 RGB DRIVER 6 3 5001 5472 SYNCHRONISATION A6 7200 D SYNC PROC 5241 8V VLOT AUX 50V VLOT AUX 13V 8V 13V 8V 8VB 8V 8V TO 3248 7200 A VIDEO IF 9 5832 NICAM 2CS BTSC DECODER A9 FRONT INTERFACE Q1 BTSC NDBX DECODER A11 VLOT AUX 5V VLOT AUX 5V REAR I O...

Страница 49: ... A07 200mV div AC 1ms div A08 200mV div AC 1ms div A08a 200mV div AC 1ms div A09 200mV div AC 1ms div A10 200mV div AC 1ms div A11 200mV div AC 1ms div A11a 200mV div AC 1ms div A12 200mV div AC 1ms div A13 10V div DC 20µs div A14 10V div DC 20µs div A15 10V div DC 1ms div A16 10V div DC 1ms div C01 500mV div DC 1ms div C02 500mV div DC 1ms div C03 200mV div DC 1ms div C04 10V div DC 100µs div C05...

Страница 50: ...7 2K2 4K7 1n 2541 2522 100n 3569 5K6 BC857B 3568 2 3 4 9506 1K 3557 2527 5564 3591 2K2 1n 2562 220R 3561 2505 2n2 5501 DMF 2405 1 4 2 3 7562 3594 470R 5521 ZPB 2566 470u 3522 9503 3527 3521 1K2 3520 3523 5560 5565 6569 BAS216 3501 3M3 6582 STPS10L60D 3552 10K 3M3 3500 3548 15K 8K2 3563 2528 1n 6500 56K 3524 6568 BYW76 9500 6570 3542 1K5 12V LE33CZ A7 11 0V RES 2 6V8 OF A2 9 A5 90 V STANDBY OPERATI...

Страница 51: ...X284 C10 6445 3405 5400 1u 2444 9460 2 3 1 4 1 2 3 4 5 0298 5452 100MHZ 3453 2461 2400 3454 L10 33R 3463 9464 2485 4u7 2422 G 1 9V A3 65 A5 16 RES HORIZONTAL 220u A5 36 126V PANEL 0V 5V2 5V 6V3 5V7 13V3 A2 69 PANEL A6 18 RES A1 11 0V 1V5 A7 7 A2 16 BZX79C5V6 0V 0R TO 0244 A6 22 A6 16 RES 0V 8V 8V9 0V E W CORRECTION ONLY FOR SETS WITH S 9V 2V RES RES RES 0213 BOARD CORRECTION A1 100 0V CU15 Width C...

Страница 52: ...O 63V 150N 330K 3R3 3R3 3R3 1R5 3U3 EU MODEL 9472 LG PH 32WR 29RF 28WR 24WR L2K3 REGION 3R3 3R3 3R9 1R5 6U8 63V 150N 270K 3R9 3R3 3R9 1R5 6U8 3MUH3 6MUH8 63V 150N 470K 100V 10N 9472 470K SMD_JUMPER LATAM 3MUH3 3U3 3470 6MUH8 6U8 JUMPER 3MUH3 6U8 3R9 3R9 LG PH 5472 3MUH3 JUMPER CH IN AP 3R9 3R9 3U3 470K 3471 3R3 3473 3R9 3480 1R5 4470 5471 6U8 3R3 SET 2472 63V 150N 2472 47n 34RF 63V 150N REGION 5V ...

Страница 53: ... ONLY TUNER IF NA AP LNA AP ITEM A5 24 RES RES A5 27 RES A5 28 LA AP NTSC 1000 5001 5002 UV1356A 47u 820n TEDH9 228 TO 0282 RES RES ITEM Tuner 820n 5u6 UV1336 TEDH9 200A 47u ENV56 TEDH9 200A 27u 820n IF 4 3V FM RADIO ANTENNA RES A7 13 A5 29 A7 3 K7260 Jmp Jmp 2K2 6K8 10n 2K2 RES RES 4 9V 0V 5V RES A5 25 K2978 PDTC124ET 4 3V 0V 1003 K6274 2003 3006 3007 3008 4001 4002 4003 4004 AP multi CH multi NA...

Страница 54: ...7 7209 F7 7210 F8 9200 D7 9202 A9 9618 A9 9653 F2 9673 G2 A13 32 2V5 2V5 TDA95XX RES A7 3 0V 2V5 9620 2V5 RES RES FOR ITV ONLY 5V 3V2 A5 42 CRT A9 43 3V6 5V 3V5 PANEL SET WITH PIP A12 31 2V9 A2 36 2V9 RES A13 40 A10 37A 2V6 A4 29 A13 34 A2 16 0V for M nas only 5V A10 B RES 1V7 2V9 100MHz TDA95XX RES A4 26 1V5 7V8 RES A1 90 2V5 A9 44 1V9 5V6 A5 42 RES 2V5 1V2 3223 100R 22n 2217 2236 1n0 3220 100R 1...

Страница 55: ...7 3249 C7 3250 C7 3251 B7 3254 A6 3256 B8 34RF A16 17 32WSRF NAFTA LATAM REGION 32V LG PH TUBE 3257 A5 3258 B4 3259 A3 4254 A4 5241 A8 5242 B7 7200 D B5 9241 A8 TDA95XX ITEM A2 21 4V A2 16 680K SMD A2 18 1V2 0V A3 19 S2 10K 3246 100n 1n5 2241 3251 100R S3 2253 1n0 2249 S1 2n2 2243 12 13 14 15 16 17 20 21 30 31 34 9 22K 50V 2N2 1V3 S4 10u 5242 15p 2255 2247 9241 4254 220n 2245 3249 820R 470K 27K 32...

Страница 56: ...VHS 0266 A7 14 TDA95XX RES OF RES A8 14 0V A1 11 0V3 A8 15 0V OF RES 9636 9635 3V3 3V2 A9 8 0238 POR FOR ITV ONLY 0V TO 3614 4K7 3609 1K 0250 4603 C5 2613 C2 1 2 3 0217 2609 100R 3624 9631 7602 1 3640 8K2 10K 3628 3635 100R 68p 6K8 1K0 3636 4K7 3626 100R 3622 2602 100p 2611 1u0 3605 4K7 4K7 3623 0317 0316 3615 10K 7606 2612 68p 100R 4604 3611 0261 2604 2608 1u0 3610 8K2 2K2 3630 5604 5u6 0279 3603...

Страница 57: ... A7 13 RES PIP Interface AUDIO_AMPLIFIER A11 46 7903 E2 9901 C8 9902 C8 9903 A3 9904 B3 9905 E2 5V2 5V2 0V3 No OF RES No Yes 3V7 RES 11V8 A7 6 FOR COMPAIR ONLY CONTROL ONLY 4903 330K 3923 3903 A4 AudioSupplyGnd_FB A2 2906 AudioSupplyGnd_FB AudioSupplyGnd_FB A3 9901 A1 2R2 3908 9902 AudioSupplyGnd_FB 3911 4R7 2 3 0267 1 6904 BAS316 6903 2911 AudioSupplyGnd_FB 1 2 3 4 9903 0280 4901 STB 1 VCC 9 VOL ...

Страница 58: ...835 F3 4836 G3 4837 D2 3842 4838 D2 4839 F10 4840 F10 5831 A3 5832 B8 5833 G2 5835 F2 6831 A4 7831 C7 7834 F4 7835 F3 7851 E9 100u 2846 4832 3833 100R 2847 2857 1n0 2858 3837 100R A10 2845 100n A6 3840 100p 2853 A8a 100R 3839 5832 6u8 1V8 RES 3V8 1V5 0V RES A10 G 0V RES FBAN60 AUDPROC A10 F A13 61 5V 3V 3V 0V 0V 2V4 0V 6V2 RES RES A5 44 1N4148 6831 A13 47 A7 13 5V 4V9 2V4 MSP34X5G 4V1 3V8 4V9 5V 0...

Страница 59: ...1 S 16 Vdd 7 7803 A HEF4053BT Vee Vss 8 12 Y0 13 Y1 14 Z 4824 4819 1 2 3 1K0 3812 100K 3818 9810 3802 1K0 100K 3817 7802 A HEF4053BT 6 E 11 S 16 Vdd 7 Vee 8 Vss 12 Y0 100K 3819 4818 4821 4817 4812 10u 4841 5810 4826 4814 3810 4807 4825 3813 1K0 4886 1811 3815 3809 4830 4831 470n 2816 4816 4892 4808 2807 220n 3821 100K 8 Y0 2 Y1 1 Z 15 7802 B HEF4053BT E 6 S 10 Vdd 16 Vee 7 Vss 3820 100K 3811 1K 28...

Страница 60: ... B7 4864 B8 4893 B8 4894 E8 5861 E3 4V RES 4V 0V 4V 8V A13 61 A10 47 4V 4V RES 6V 4V 6V 7861 C4 7891 B9 7892 E9 9891 A9 9892 D9 RES A5 42 4 3V 4V 0V 4V 4V 4V A8 46 4V 8V RES 4V 4V RES 0V 4V 4V 4V 0V 4V A10 48 220n 2886 2892 100n 150p 2868 2882 CSB 3893 330R A14 2863 10u 2877 1K2 3863 A15 100K 3861 15K 3862 3864 100R 2864 2u2 A12 470u 2883 2874 100u 4u7 2876 2u2 2873 3n3 2872 3896 330R 100R 3865 1u...

Страница 61: ...981 E3 3982 F3 4691 E8 4692 D7 4693 D7 4694 G5 4695 C9 4696 B10 4697 B4 4698 B4 4699 B4 6181 A3 6681 B10 6691 D8 6692 D9 9181 A5 9184 A7 9982 F2 3185 0218 A TO 0251 OF RES SIDE FRONT AV V TO 0251 0253 OF OR 0R FRONT CONTROL ITV ONLY A8 70 volume A7 4 For Engg Purpose Only FOR ITV ONLY FOR ITV ONLY RES TS volume USA FRONT CINCH RES FOR 4695 2183 2696 LTL 10224WHCR 6691 2185 2187 3695 100R 1603 4K7 ...

Страница 62: ...TV TO 0227 OF A5 33 L 9104 D7 9111 C4 9112 C4 9113 D4 9121 D6 9122 D7 9123 F3 2u2 FOR ITV ONLY A7 92 SET WITH VIDEO OUT FOR CVI A5 32 3V A7 2 3V6 RES U L RES RES FOR PIP TO 0219 OF FOR PIP RES RES U L W O SVHS U L A5 39 FOR 0290 OF R A10 30 SET WITH SVHS SET WITH SVHS R RES TO 0262 YUV INPUT FOR ITV TO 0242 OF FOR A5 38 V MONITOR OUTPUT ITV V SVHS FOR SETS WITH 9 3P CINCH PIP SET RES NOT FOR A5 40...

Страница 63: ...4 B2 8K2 3175 4K7 3170 4 9V ROTATION 4 9V 4 9V 1 1V 1 6V TO 0236 OF TDA8941P TO 1 1V COIL A8 74 0 7V 0 7V PIP INTERFACE CIRCUIT TILT INTERFACE PIP INTERFACE RESERVED TILT INTERFACE A6 17 5 3 1 7 2 8 6 4 V20 V22 3173 10K BC847B 7173 8K2 3177 1 2 3 3180 68K 220p 2173 0268 100p 2172 8K2 3174 3K9 3178 2K2 3179 4171 100R 3176 BC857B 7174 BC857B 7172 100K 3181 68K 3190 3 4 7000 GND IN IN MODE OUT OUT SV...

Страница 64: ...2KV 680P 1K6V 12N 1KV 9N1 250V 68N BZX384 C12 10K 180R 27K 180R 27K 18K 16V 1000U 50V 2U2 25V 220U 22R 3K9 3K3 3K3 330R PSLOT 0V2076 1K 50V 10N 50V 10U 10K 22U 22U 1K LINE DEFLECTION 25V 220U 10K 470K 50V 22N 250V 68N 25U 10M 33U BAS316 BAS316 BYD33J BC547B BC547B 0 58MM COIL BYD33J 16V 1U 50V 470P 0 58MM COIL 0 58MM COIL 0 58MM COIL 0 58MM COIL 10V 2200U BZX79 C47 LAL04 A 47U 0R05 0R05 1K LAL04 A...

Страница 65: ...Circuit Diagrams and PWB Layouts 65 L01 1U AC 7 Layout Mono Carrier Top Side www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 66: ...5 3495 C8 3496 C8 3497 C7 3498 C8 3499 C5 3520 D4 3522 D4 3524 E4 3525 E4 3528 D3 3529 D4 3530 E4 3531 D4 3541 D3 3542 D3 3544 D3 3545 D3 3548 C3 3552 D3 3557 C5 3562 D4 3563 C4 3566 C3 3567 D3 3568 D3 3569 D3 3570 D4 3580 C2 3594 D3 3595 D5 3596 D5 3605 C6 3611 B6 3613 B6 3622 B7 3623 B6 3626 B6 3627 B6 3628 B6 3629 B6 3630 B6 3632 B6 3633 B6 3636 A7 3637 B5 3638 A5 3639 B6 3681 B1 3682 C1 3683 C...

Страница 67: ...Circuit Diagrams and PWB Layouts 67 L01 1U AC 7 Layout Mono Carrier Part 1Bottom Side CL 26532119_40a eps 161202 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 68: ...68 L01 1U AC 7 Circuit Diagrams and PWB Layouts Layout Mono Carrier Part 2 Bottom Side CL 26532119_40b eps 161202 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 69: ...Circuit Diagrams and PWB Layouts 69 L01 1U AC 7 Layout Mono Carrier Part 3 Bottom Side CL 26532119_40c eps 161202 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 70: ...70 L01 1U AC 7 Circuit Diagrams and PWB Layouts Layout Mono Carrier Part 4 Bottom Side CL 26532119_40d eps 161202 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 71: ...35 B4 7330 B3 9341 D6 9345 D6 H1 9 6331 BAV21 2331 1n CR 8 1 2 3 4 5 2343 3n3 H2 10 3334 CB 3344 33R V13 9345 6335 BAV21 3341 H2 10 GND 12 BAV21 6333 680p 2346 4341 7 1n 2345 V11 3333 100R 140V CRT 6V TO FROM LINE DEFLECTION EHT AQUADAG NOT USED OF 2V5 B2 67 GNDSS B G FROM LOT MAIN CHASSIS CRT PANEL ECO SCAVEM 0243 5 FOCUS 2V5 2V5 0220 B2 68 B2 69 T0 CRT SOCKET 140V OF FROM RGB PROCESSING 1 1K T0 ...

Страница 72: ...386 B2 4388 A7 5376 C6 6364 C2 6365 C2 6366 C3 6367 B3 7360 C2 7366 B5 7369 C3 7373 B5 7380 C5 7382 D5 9376 C6 B1 67 4n7 2362 2366 4n7 2360 3R3 10K 3361 0278 1 2 3 2364 2K2 3369 6366 BAT85 2379 10u 27p 4n7 2381 3385 2373 4n7 2369 39p BAT85 6365 7369 BC635 7380 47u 2368 BC858C BC848B 7360 4388 4n7 2375 3386 10R 3367 10K BC337 25 7382 BC636 7366 2378 220p BAV99 6367 10u 2372 1K 3373 3384 5376 2365 2...

Страница 73: ...68 A2 2372 A2 2378 A2 2379 A2 3331 A1 3332 A2 3333 A1 3334 A1 3335 A1 3336 A2 3340 A2 3341 A2 3342 A2 3343 A1 3344 A2 3345 A1 3346 A2 3367 A2 3368 A2 3374 A2 3376 A2 3377 A2 3384 A2 3385 A2 3386 A2 5341 A1 5342 A2 5376 A2 6331 A1 6333 A1 6335 A1 6365 A1 6366 A1 7330 A1 7366 A2 7373 A2 7380 A2 7382 A2 9311 A1 9312 A1 9313 A2 9314 A2 9341 A1 9345 A1 9376 A2 www freeservicemanuals info 22 11 2016 Pub...

Страница 74: ... A2 2362 A2 2364 A1 2365 A1 2366 A1 2367 A2 2369 A2 2373 A2 2375 A2 2380 A2 2381 A2 2382 A2 3360 A2 3361 A2 3362 A2 3363 A2 3369 A2 3373 A2 3375 A2 3378 A2 3380 A2 3381 A2 3383 A2 4311 A2 4312 A2 4313 A2 4341 A2 4388 A1 6332 A1 6364 A1 6367 A2 7360 A2 7369 A2 www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 75: ...178 E3 2179 E3 1 2 3 4 5 6 1 2 3 4 5 6 A B C D E SG07 3150 D4 3151 D4 3152 C4 3153 B4 3155 B4 3156 E3 3157 F3 6161 B4 9152 C3 9153 B4 SG02 B3 SG03 D3 SG04 C3 SG06 F4 SG07 E4 SG06 0277 A 0277 B 3157 1 2 3 4 5 3156 0254 100u 2177 2176 2179 100u 6 7 8 9 2178 4 0232 1 2 3 4 5 0255 1 2 3 2173 330p 2172 9153 9152 0251 1 2 3 4 5 6 7 8 9 3155 75R 0250 C 1 2 3 0250 A 0250 B 4 5 6 SG04 3153 SG02 330p 2171 S...

Страница 76: ... R RIGHT SINGLE BOARD 12NC 3139_123_55940_01 L MULTIPLE BOARD 12NC 3139_123_55930_01 10uF 5V8 5V OF HEADPHONE 10uF 470pF RES SIDE AV PANEL HP PANEL 1V6 To RES 5V TO OF TO 0229 OF RES L 1811 L R R 5V8 VIDEO IN LEFT BZX79 C6V8 TO 3151 0250 A 7 8 9 5 6 0250 C 1 2 3 SG08 SG10 9182 3156 2802 3152 3815 100K 2172 220R 3801 4170 0277 A 1K0 3802 1811 1 2 3 4 3820 100K 2180 2u2 2181 2u2 4820 3157 1 2 3 4 5 ...

Страница 77: ...53 A1 9154 B1 9170 C1 9181 C1 9182 B1 Layout Side AV Panel HP Panel Slim Bottom Side CL 26532119_043 eps 161202 2171 C1 2172 C1 2173 C1 2174 C1 2176 D1 2178 D1 2180 C1 2181 B1 2802 A1 3150 C1 3152 C1 3156 D1 3157 D1 3158 B1 3801 B1 3802 B1 3814 A1 3815 A1 3816 A1 3817 A1 3818 A1 3819 A1 3820 A1 3821 A1 3821 A1 4170 C1 4180 C1 4817 A1 4819 A1 4820 B1 4821 C1 4822 B1 7802 A1 www freeservicemanuals i...

Страница 78: ..._01 L MULTIPLE BOARD 12NC 3139_123_56250_01 RIGHT L 32PT6331 37R Speakers 470pF 470pF 0246 VIDEO IN LEFT BZX79 C6V8 10uF To R R GND HEADPHONE RES 5V8 5V R 1V6 L 10uF OF TO 0219 OF 2 3 9182 3150 47K 3151 4822 150R 0277 B 0277 A SG03 330p 2171 2802 2u2 2180 4820 3817 100K 3821 75R 3158 SG02 SG04 6161 0250 B 4 5 6 SG06 100K 3820 3818 100K 3802 1K0 3801 220R 9 0232 1 2 3 4 5 6 7 8 Y0 3 Y1 4 Z 2177 HEF...

Страница 79: ...2 9154 A2 9155 B2 9170 B2 9181 A1 9182 A2 Layout Side AV Panel HP Panel Wide Bottom Side CL 26532119_045 eps 161202 2171 B2 2172 B2 2173 B2 2174 B2 2176 C2 2178 C2 2180 B2 2181 B2 2802 A2 3150 B2 3152 B2 3156 C2 3157 C2 3158 A2 3801 A2 3802 B2 3814 A2 3815 A1 3816 A2 3817 A2 3818 A2 3819 A2 3820 A1 3821 A2 4170 B2 4180 A2 4817 A2 4819 B1 4820 A2 4821 B2 4822 A2 4823 A2 4824 A1 7802 A2 www freeserv...

Страница 80: ...LAY TOP CONTROL PANEL 3095 A4 3096 B4 C C V 3094 A3 SKQNAB 1091 3095 3K3 3096 1K5 3094 270R 3092 390R 560R 3093 3091 560R Molex 5268 0215 1 2 3 1094 SKQNAB 1092 SKQNAB SKQNAB 1093 CL 26532119_030 eps 111202 9 9 Layout Top Control Panel Top Side Layout Top Control Panel Bottom Side CL 06532012_031 eps 040200 CL 06532012_032 eps 040200 www freeservicemanuals info 22 11 2016 Published in Heiloo Holla...

Страница 81: ...33u 5428 A6 5429 A6 5430 A6 5440 A8 5442 A9 5450 C8 5452 C9 7401 B2 7402 B2 7403 B2 7440 A8 7444 A10 7450 C8 7454 C10 GND_PLL 5421 3440 820R 390R 3456 GND_DAC GND_DGT 10u 5401 820R 3450 470n 2411 100u AUDIO VEDEO 100u 12K 1810B SOURCE SWITCHING 4u7 47u 510K 100u 100u 100n 47u 2D 3 LINE COMB FILTER TO 560R 10n 2432 3427 10K 3444 GND_DAC 2425 10n 2419 10n 2436 3405 820R GND_DAC 15p 2409 BC847B 7402 ...

Страница 82: ... and PWB Layouts Layout 2D 3 Line Comb Filter Top Side Layout 2D 3 Line Comb Filter Bottom Side CL 265321196_035 eps 161202 CL 265321196_036 eps 161202 Personal Notes www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 83: ... 1090 1 4085 3013 2K7 0215 1 2 3 3088 1n 2014 4089 3011 1K8 4093 0216 1 2 3 4 4092 3091 3092 560R 390R 2010 3096 1K5 1095 47u 4097 180R 4085 4089 V V Jumper VOICE CONTROL 2K 3096 4090 MICROPHONE PLUG PLAY 390R OF Item 55K Jumper C TOP CONTROL PANEL 560R 620R MENU BUTTON FOR EM1 C RES 4086 270R 6091 2K7 2K7 BAT254 3093 3094 TO 0239 MENU 3084 Jumper Jumper 4087 RES RES 5 KEYS CONFIGURATION 68R 75R 3...

Страница 84: ...de 2010 A1 2012 D1 2013 D1 2014 D1 2016 D1 2017 D1 2018 E1 2019 E1 2020 E1 3010 E1 3011 D1 3012 D1 3013 A1 3084 C1 3085 C1 3086 C1 3087 C1 3088 B1 3089 B1 3090 B1 3091 A1 3092 B1 3093 B1 3094 B1 3095 C1 3096 C1 3097 C1 3098 C1 4010 D1 4011 E1 4085 C1 4086 A1 4087 C1 4089 B1 4090 B1 4091 A1 4092 B1 4093 B1 4094 B1 4097 C1 6091 C1 6093 C1 7091 D1 CL 26532119_039 eps 161202 www freeservicemanuals inf...

Страница 85: ...0AE TO 0214 OF FRONT AC MAINS INPUT 110V 220V TO 0211 OF POWER SUPPLY TO ITV MULTIMEDIA CONTROL POWER FOR ITV ONLY LATAM 100V 250V NAFTA 110V EUROPE 220V 240V L01 USA ONLY FRONT INTERFACE PANEL YES YES YES YES YES YES YES YES 6692 6691 3693 FRNT INTERF SLIM NA FRNT INTERF SLIM EU LA FRNT INTERF SLIM EU NON ULL01L ITEM 0231 1606 2691 2698 3500 3501 6691 9901 9002 YES YES YES YES YES YES YES YES I01...

Страница 86: ...93 1 4 1 4 0221 2465 1 0262 RT 01T 6K8 3462 470n 2466 1 4 LSP TO 5431 LOT OF TO HORIZONTAL GND 2466 LINE DEFLECTION TO 0221 OF 120N TO 0261 OF DYNAMIC FOCUS 220N INNER PIN CUSHION CORRECTION OPTIONAL LINE DEFLECTION LSP DEFLECTION COIL DIVERSITY TABLE 29 RF PDCC 34 RF PDCC 470N LINE DEFLECTION DAF 34 BMCC DAF PANEL INNER PIN CUSHION CORRECTION 2K7 3467 2n2 2467 2n2 2464 2K7 3463 100R 3468 5493 CU2...

Страница 87: ...se the MENU UP DOWN keys to select BRIGHTNESS Be sure to record the current value of BRIGHTNESS 12 Use the MENU LEFT RIGHT keys to set the value of BRIGHTNESS to minimum OSD just visible in a dark room 13 Press the MENU button twice to return to the top level SDAM menu 14 Press the STATUS EXIT button to hide the SDAM onscreen display 15 Connect the RF output of a video pattern generator to the ant...

Страница 88: ...The value must be entered as a three digit value for example 4 would be entered as 0 0 4 6 The selected value must be between 0 and 255 7 When all desired changes to the option bytes are made press the MENU button to return to the top level SDAM menu This will save changes to the option byte settings 8 To ensure the option byte changes take effect Turn the television set OFF by using the POWER but...

Страница 89: ...Turn the television set off by using the POWER button on the remote control transmitter or the local keyboard Disconnect the television set from AC power for at least ten seconds Reconnect the television set to AC power Turn the television set on by using the POWER button on the remote control transmitter or the local keyboard 8 3 3 White Tone Figure 8 4 White tone alignment menu The values of the...

Страница 90: ...M menu 13 To ensure the GEOMETRY settings are saved Turn the television set off by using the POWER button on the remote control transmitter or the local keyboard Disconnect the television set from AC power for at least ten seconds Reconnect the television set to AC power Turn the television set on by using the POWER button on the remote control transmitter or the local keyboard Figure 8 5 Geometry...

Страница 91: ...ment it may be necessary to perform the VAM alignment again Vertical Zoom VX Adjusts the picture height Delta Horizontal Shift 60 Hz H60 Delta Vertical Amplitude 60 Hz V60 Methods of adjustment 1 Select Service Blanking SBL and set it to 1 The lower half of the picture will be blanked 2 Press the MENU UP DOWN buttons to select Vertical Slope VSL 3 Align VSL to start the blanking exactly at the hor...

Страница 92: ...1 To enter SDAM press the following key sequence on the remote control transmitter 0 6 2 5 9 6 directly followed by the MENU button do not allow the display to time out between entries while keying the sequence 2 Use the MENU UP DOWN keys to highlight the AUDIO sub menu 3 Press the MENU LEFT RIGHT keys to enter the AUDIO sub menu 4 Use the MENU UP DOWN keys to select A2T 5 Use the MENU LEFT RIGHT ...

Страница 93: ...f the UOC an external audio processing IC is used for stereo sets The tuning system features 181 channels with on screen display The main tuning system uses a tuner a microcomputer and a memory IC mounted on the Mono Carrier The microcomputer communicates with the memory IC the customer keyboard remote receiver tuner signal processor IC and the audio output IC via the I2 C bus The memory IC retain...

Страница 94: ...1 AUDIO SOURCE SELECTION CONTROL EXT AUDIO OUT 7861 7831 7834 7835 7209 7210 7901 10 1000 0265 11 1 1 1 AGC 1200 1202 18 19 38 INT_CVBS EXT_CVBS 40 42 16 17 15 30 68 I2C 50 53 EXT RGB YUV INPUT 56 58 7330 EHT 7460 H EW V V 7471 7602 7200 POWER SUPPLY CL 16532016_01a eps 120401 AUDIO AMPL SAW FILTER SOUND IF DEMOD AUDIO DECODING AND PROCESSING SELECTION MATR SWITCH VISION IF DEMOD NVM VIDEO AMPL HO...

Страница 95: ...mmingled the luminance makes a black and white picture in full detail and chrominance coloration with not quite all the detail This method is used instead of red green and blue sub signals in order to get the best looking picture that can be transmitted in the limited bandwidth of the broadcast channel Every TV receiver and VCR must contain a filter to separate the luminance and color Y and C agai...

Страница 96: ...e used Black current calibration loop Because of the 2 point black current stabilization circuit both the black level and the amplitude of the RGB output signals depend on the drive characteristics of the picture tube The system checks whether the returning measuring currents meet the requirements and adapt the output level and gain of the circuit when necessary After stabilization of the loop the...

Страница 97: ...pin 11 is intended to be used as a X ray protection When this protection is activated when the voltage exceeds 6 V the horizontal drive pin 30 is switched off immediately If the H drive is stopped pin 11 will become low again Now the horizontal drive is again switched on via the slow start procedure The EHTinformation line Aquadag is also fed back to the UOC IC 7200 pin 54 to adjust the picture le...

Страница 98: ...The Ewdrive signal from pin 15 of IC 7200 takes care for the correct correction It drives FET 7400 It also corrects breathing of the picture due to beam current variations the EHT varies dependent of the beam current This correction is derived from the EHTinformation line Two protections are built in for the E W circuit over current and over voltage protection See paragraph 9 7 6 Panorama The pano...

Страница 99: ...rom almost zero to VIN n VOUT VF VF is the forward voltage drop of de diode that will be omitted from the equations from now on The current will change its positive derivative corresponding to VIN LP to a negative derivative corresponding to n VOUT LP Interval 3 t2 t t3 secondary stroke In the third interval the stored energy is transferred to the output so the diode starts to conduct and the indu...

Страница 100: ...d VVCO start The frequency will be reduced in relation to the VCO voltage between 75 mV and 50 mV at levels larger than 75 mV Ctrl voltage 1 425V the oscillator will run on maximum frequency foscH 175 kHz typically At 50 mV VVCO max the frequency is reduced to the minimum level of 6 kHz Valley switching is still active in this mode Minimum Frequency mode MinF At VCO levels below 50 mV the minimum ...

Страница 101: ...the load t3 Charge of VCC when gate drive is inactive The third interval starts when the UVLO is reached The internal current source charges the VCC capacitor also the soft start capacitor is recharged Once the VCC capacitor is charged to the start up voltage the driver is activated and a new burst cycle is started Figure 9 14 Burst mode waveforms 9 6 3 Protection Events The SMPS IC 7520 has the f...

Страница 102: ...pacitor CIN In this case the supply will not be able to start up because the VCC capacitor will not be charged to the start up voltage 9 7 Control Figure 9 16 Block diagram set control 9 7 1 Introduction The microprocessor part of the UOC has the complete control and teletext on board User menu Service Default Mode Service Alignment Mode and Customer Service Mode are generated by the uP Communicat...

Страница 103: ... the UOC will be pulled down Thereafter the UOC will shut down the power supply In case of further current increase the fused resistor 3411 is built in for double protection In case of a high voltage appearing across capacitor 2401 dependent of the tube size which is high enough to trigger zener diode 6401 into conduction transistor Q7606 in A7 diagram will conduct and UOC is triggered to shut dow...

Страница 104: ... N 3 582056 MHz PCB Printed Circuit board PIP Picture In Picture PLL Phase Locked Loop Used for e g FST tuning systems The customer can give directly the desired frequency POR Power On Reset Progressive Scan Scan mode where all scan lines are displayed in one frame at the same time creating a double vertical resolution PTP Picture Tube Panel or CRT panel RAM Random Access Memory RC Remote Control ...

Страница 105: ...Spare Parts List EN 105 L01 1U AC 10 10 Spare Parts List Not applicable www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

Страница 106: ...Revision List EN 106 L01 1U AC 11 11 Revision List First release www freeservicemanuals info 22 11 2016 Published in Heiloo Holland ...

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