Sharp 14A1-RU Скачать руководство пользователя страница 19

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14A1-RU
14A2-RU

19-2

19-1

TROUBLE SHOOTING TABLE

(Continued)

NO PICTURE, NO SOUND

Does noise signal appear at

pin (44) of IC801 ?

NO SOUND

No snow noise.

Does noise or signal appear at pin (40)

of IC801 ?

Noise increases but no signal is

received.

Check the tuner supply voltage LB must

be approx. 5V. BT must be approx, 32V.

And CH preset data check.

Check the tuner AGC

(TP201).

Does noise or

signal appear at

pin (38) of IC801 ?

Check IC801 and

its related circuit.

Check Q205 and

related circuit.

Check pin (1) of

SF201 and Tuner

related circuit.

Check pin (37)of

IC801 and related

circuit.

CheckIC801.

Check C356 and

its peripheral

circuit.

Check pin (27) of

IC801, Tuner and

related circuit.

Check pin(38) of

IC801.

Does the noise level increase at max.

Contrast, Brightness and Sound controls ?

CIRCUITS TO BE CHECKED:

Tuner.

PIF.

Automatic Gain Control.

(5V), (32V) Power Source.

CIRCUITS TO BE CHECKED:

Sound system pins (28)

and (44) of IC801.

Sound Detector Circuit.

Sound Switch and Att.

Control.

Audio Output Circuit.

Does signal appear at pins

(6) and (8) of IC301 ?

Check P301 connector of

IC301 and peripheral circuit.

Check Q301, pins(4) and (6)

of IC801 and peripheral

circuit.

Does signal appear at pins(28)

and (29) of IC801?

TROUBLE SHOOTING TABLE

NO RASTER

Blown out.

Replace the fuse.

Check IC701, D701 and

C707.

The fuse is again blown out.

Does horizontal circuit

oscillate ?

Check IC651, IC751 and

IC801.

D1001 (Power LED Red)

turns on or turns ON/OFF.

Check T701 pin (7) voltage

(Approx. 310V at 220V AC)

Check F701.

Check Secondary Main+B

(Approx. 115V)

Check CRT connector K1-

K5 bias.

Check

C787.

Check

IC801.

Checking the

protector circuit.

Check R618 and R615.

D1001 (Power LED Green)

turns on.

Check D758, IC702, IC753

and D762.

Check R701, R707 and

D709.

Содержание 14A1-RU

Страница 1: ...VICE NOTES 2 ADJUSTMENT PRECAUTIONS 3 TROUBLE SHOOTING TABLE 19 HOTEL MODE APPLICATION 21 SOLID STATE DEVICE BASE DIAGRAM 22 WAVEFORMS 23 CHASSIS LAYOUT 24 DESCRIPTION OF SCHEMATIC DIA GRAM 26 SCHEMATIC DIAGRAM CRT Unit 27 MAIN Unit 28 BLOCK DIAGRAM 32 PRINTED WIRING BOARD ASSEM BLIES 37 REPLACEMENT PARTS LIST ELECTRICAL PARTS 42 MISCELLANEOUS PARTS 46 SUPPLIED ACCESSORIES 46 PACKING PARTS 46 CABI...

Страница 2: ...e a picture tube with unauthorizerd types and or brands which may cause excess X ray radiation BEFORE RETURNING THE RECEIVER Before returning the receiver to the user perform the following safety Checks 1 Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the receiver 2 Inspect all protective devices such as...

Страница 3: ...re the data need modify or not Initial data Note Once the chassis has been assembly together and ready to be POWER ON for the FIRST TIME make sure to short JA122 JA124 to switch to the service mode position first and then turn on the main power switch See 2 1 above Precaution If haven t done this initiation it may possibly generate excessive Beam current 3 For reference please check with memory ma...

Страница 4: ...ODULATION GAIN FOR BTSC SIGNAL BTSC A A NUMBER OF EXT AV SOURCE AV FM WINDOW SEVECTION FMWS SOUND MUTE BIT 0 SM0 SOUND MUTE BIT 1 SM1 THAI LANGUAGE THA ARABIC LANGUAGE ARA MALAY LANGUAGE MAL CHINESE LANGUAGE CHI FRENCH LANGUAGE FRE RUSSIAN LANGUAGE RUS FORCED V SYNC SLICING LEVEL FSL SYNC OF OSD HP2 TUNER SELECTION CPT B B BILINGUAL BIL IF AGC SPEED BIT 0 AGC0 IF AGC SPEED BIT 1 AGC1 FOA Time Cons...

Страница 5: ...V 0 DISABLE 1 ENABLE 1 FIX NOTE FIXED DATA PLEASE DO NOT CHANGE WITHOUT SPECIFIC INSTRUCTION 1 MANUALLY CHANGE 1 TO 0 EEPROM ITEMS OSD DATA LENGTH INITIAL DATA FIX ADJ REMARK AGC TAKE OVER POINT AGC 0 63 14 ADJ VERTICAL SLOPE V LIN 0 63 32 ADJ VERTICAL AMPLITUDE V AMP 0 63 32 ADJ VERTICAL SHIFT V CENT 0 63 32 ADJ HORIZONTAL SHIFT H CENT 0 63 32 ADJ S CORRECTION S COR 0 63 0 FIX WHITE POINT RED STD...

Страница 6: ... 663 25 B G 43 679 25 B G 44 174 95 B G 45 175 55 B G ITEMS DATA SETTING LAST PROGRAM CHANNEL 1 FLASHBACK PROGARM CH 1 DIGIT 1 C SYSTEM AUTO S SYSTEM D K SKIP OFF AFC ON VOLUME 1 CONTRAST 60 MAX COLOUR 0 CENTER BRIGHTNESS 0 CENTER TINT 0 CENTER SHARPNESS 0 CENTER WHITE TEMP STANDARD REMINDER TIMER In active ON TIMER In active OFF TIMER In active LAST POWER POWER ON LANGUAGE RUSSIAN BLUE BACK MUTE ...

Страница 7: ...Fig 4 2 Fig 4 3 Green only Blue only Red only Signal colour screen cleared PIF ADJUSTMENT No Adjusting point Adjusting procedure conditions Waveform and others Tuner IFT PRESET 1 1 Get the tuner ready to receive the CH E 9 signal but with no signal input Adjust the PLL data 2 Connect the sweep generator s output cable to the tuner antenna RF SWEEP 3 Adjust the sweep generator s to 80dBuV 4 Connect...

Страница 8: ...IGHTNESS Y by generator to 10 cd m2 MINOLTA CA 100 by reducing LUMINATE Y signal 7 Adjust CUT R CUT G to get 7 500 Then go back NORMAL mode HIGH BRIGHT to check colour temperature If out of range back to 1 Note This adjustment must be done after warming up the unit for 30 minutes or longer with a beam current over 500 µ A ADJUST DRI GC GW DRI BC BW as following DATA after finishing DRI BS and DRI ...

Страница 9: ...ified 1 76 Vp p 3 dB 1 VIDEO AND AUDIO INPUT CHECK 1 Using the TV AV key on the remote controller make sure that the modes change in order of TV AV1 AV2 TV again and the video audio out put are according to the input terminal for each mode 2 A V INPUT AND OUTPUT CHECKING W Y Cy G Mg R B SAME LEVEL Fig 9 HORIZONTAL AND VERTICAL DEFLECTION LOOP ADJUSTMENT No Adjusting point Adjusting procedure condi...

Страница 10: ...SD LANGUAGE quantity and type as Eng lish and Russian 12 FUNCTION OPERATION CHECKING VIDEO AND AUDIO No Adjusting point Adjusting procedure conditions Waveform and others CONTRAST key 1 Receive Monoscope Pattern signal 2 Set P Mode to select CONTRAST 3 Press Volume Up Down key to check whether the CONTRAST effect is OK or not 1 1 Receive Color Bar signal 2 Set P Mode to select COLOUR 3 Press Volum...

Страница 11: ...OOL 20 00 3F 1A DRIVE G COOL 20 00 3F 1B DRIVE B COOL 20 00 3F 1C DRIVE R WARM 20 00 3F 1D DRIVE G WARM 20 00 3F 1E DRIVE B WARM 20 00 3F 1F 20 21 22 SUB VOLUME 3F 00 3F 23 SUB CONTRAST 3F 00 3F 24 SUB COLOUR 20 00 3F 25 SUB BRIGHTNESS 20 00 3F 26 SUB TINT 20 00 3F 27 SUB SHARPNESS 20 00 3F 28 HTL VOLUME 20 00 3F 29 HTL PROGRAM NUM FF 00 FF 2A 2B 2C 2D OSD RGB REFERENCE 0F 00 0F 2E CUTOFF LEVEL OF...

Страница 12: ...IP 20 SKIP 21 SKIP 22 SKIP 23 00 00 FF 65 SKIP 24 SKIP 25 SKIP 26 SKIP 27 SKIP 28 SKIP 29 SKIP 30 SKIP 31 00 00 FF 66 SKIP 32 SKIP 33 SKIP 34 SKIP 35 SKIP 36 SKIP 37 SKIP 38 SKIP 39 00 00 FF 67 SKIP 40 SKIP 41 SKIP 42 SKIP 43 SKIP 44 SKIP 45 SKIP 46 SKIP 47 00 00 FF 68 SKIP 48 SKIP 49 SKIP 50 SKIP 51 SKIP 52 SKIP 53 SKIP 54 SKIP 55 00 00 FF 69 SKIP 56 SKIP 57 SKIP 58 SKIP 59 SKIP 60 SKIP 61 SKIP 6...

Страница 13: ...T 9A S SYS AFT auto C SYS 9B TUNING FREQUANCY HIGHER PART POS 13 9C TUNING FREQUANCY LOWER PART 9D S SYS AFT auto C SYS 9E TUNING FREQUANCY HIGHER PART POS 14 9F TUNING FREQUANCY LOWER PART A0 S SYS AFT auto C SYS A1 TUNING FREQUANCY HIGHER PART POS 15 A2 TUNING FREQUANCY LOWER PART A3 S SYS AFT auto C SYS A4 TUNING FREQUANCY HIGHER PART POS 16 A5 TUNING FREQUANCY LOWER PART A6 S SYS AFT auto C SY...

Страница 14: ...D9 S SYS AFT auto C SYS DA TUNING FREQUANCY HIGHER PART POS 34 DB TUNING FREQUANCY LOWER PART DC S SYS AFT auto C SYS DD TUNING FREQUANCY HIGHER PART POS 35 DE TUNING FREQUANCY LOWER PART DF S SYS AFT auto C SYS E0 TUNING FREQUANCY HIGHER PART POS 36 E1 TUNING FREQUANCY LOWER PART E2 S SYS AFT auto C SYS E3 TUNING FREQUANCY HIGHER PART POS 37 E4 TUNING FREQUANCY LOWER PART E5 S SYS AFT auto C SYS ...

Страница 15: ...ING FREQUANCY LOWER PART 11B S SYS AFT auto C SYS 11C TUNING FREQUANCY HIGHER PART POS 56 11D TUNING FREQUANCY LOWER PART 11E S SYS AFT auto C SYS 11F TUNING FREQUANCY HIGHER PART POS 57 120 TUNING FREQUANCY LOWER PART 121 S SYS AFT auto C SYS 122 TUNING FREQUANCY HIGHER PART POS 58 123 TUNING FREQUANCY LOWER PART 124 S SYS AFT auto C SYS 125 TUNING FREQUANCY HIGHER PART POS 59 126 TUNING FREQUANC...

Страница 16: ...NCY LOWER PART 15A S SYS AFT auto C SYS 15B TUNING FREQUANCY HIGHER PART POS 77 15C TUNING FREQUANCY LOWER PART 15D S SYS AFT auto C SYS 15E TUNING FREQUANCY HIGHER PART POS 78 15F TUNING FREQUANCY LOWER PART 160 S SYS AFT auto C SYS 161 TUNING FREQUANCY HIGHER PART POS 79 162 TUNING FREQUANCY LOWER PART 163 S SYS AFT auto C SYS 164 TUNING FREQUANCY HIGHER PART POS 80 165 TUNING FREQUANCY LOWER PA...

Страница 17: ...S SYS AFT auto C SYS 18E TUNING FREQUANCY HIGHER PART POS 94 18F TUNING FREQUANCY LOWER PART 190 S SYS AFT auto C SYS 191 TUNING FREQUANCY HIGHER PART POS 95 192 TUNING FREQUANCY LOWER PART 193 S SYS AFT auto C SYS 194 TUNING FREQUANCY HIGHER PART POS 96 195 TUNING FREQUANCY LOWER PART 196 S SYS AFT auto C SYS 197 TUNING FREQUANCY HIGHER PART POS 97 198 TUNING FREQUANCY LOWER PART 199 S SYS AFT au...

Страница 18: ...ECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA REMARK 1C0 1C1 1C2 1C3 1C4 1C5 1C6 1C7 1C8 1C9 1CA 1CB 1CC 1CD 1CE 1CF 1D0 1D1 1D2 1D3 1D4 1D5 1D6 1D7 1D8 1D9 1DA 1DB 1DC 1DD 1DE 1DF 1E0 1E1 1E2 1E3 1E4 1E5 1E6 1E7 1E8 1E9 1EA 1EB 1EC 1ED 1EE 1EF 1F0 1F1 1F2 1F3 1F4 1F5 1F6 1F7 1F8 1F9 1FA 1FB 1FC 1FD 1FE 1FF MODEL MODEL LETTER NO LETTER NO ...

Страница 19: ...ness and Sound controls CIRCUITS TO BE CHECKED Tuner PIF Automatic Gain Control 5V 32V Power Source CIRCUITS TO BE CHECKED Sound system pins 28 and 44 of IC801 Sound Detector Circuit Sound Switch and Att Control Audio Output Circuit Does signal appear at pins 6 and 8 of IC301 Check P301 connector of IC301 and peripheral circuit Check Q301 pins 4 and 6 of IC801 and peripheral circuit Does signal ap...

Страница 20: ...k Q872 Q887 and their adjacent circuits Check IC801 and bias control circuit NO SPECIFIC COLOUR PAL SECAM NO COLOUR SYNCHRONIZATION Check IC801 R801 R802 R803 D804 D805 D806 and Q801 Check X1001 12MHz TROUBLE SHOOTING TABLE Continued NEITHER VERTICAL NOR HORIZONTAL SYNCHRONIZATION CIRCUIT TO BE CHECKED Sync Separator Circuit NO VERTICAL SCAN Vertical linearity and size is abnormal Check pins 16 17...

Страница 21: ...the hotel mode it is better to choose ch 1 set s vol level Up to 75 full scale After set hotel mode starting channel will be always ch 1 maximum sound level out will be set the half of full scale If you set hotel mode in AV starting channel will be the last ch which you received before power off same as normal operation CONDITION When using hotel mode user can control contrast brightness sharpness...

Страница 22: ...6CE BASE COLLECTOR EMITTER BASE COLLECTOR EMITTER B C E KA7808 KA7805 1 2 3 ANODE RED CATHODE COMMON ANODE GREEN 1 2 3 1 3 SE115N STRF6653 STRF6654 TDA7056A PX0423CE 2SD1877 2SD2586 1 12 2R BG COLLECTOR COLLECTOR BASE EMITTER 2SC2735 2R COLLECTOR BASE EMITTER BASE EMITTER 1 8 LA7016 1 3 1 5 TA48M033 1 3 5 7 2 4 6 8 9 TDA8357 iX3368CE SIDE VIEW ...

Страница 23: ...23 14A1 RU 14A2 RU 23 2 23 1 WAVEFORMS ...

Страница 24: ...24 14A1 RU 14A2 RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J MODEL 14A1 RU CHASSIS LAYOUT ...

Страница 25: ...25 14A1 RU 14A2 RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J MODEL 14A2 RU CHASSIS LAYOUT ...

Страница 26: ...IS DIRECTLY CONNECTED WITH AC MAINS VOLTAGE WHEN SERVICING THEAREA CONNECTAN ISOLATING TRANS FORMER BETWEEN TV RECEIVER AND AC LINE TO ELIMINATE HAZARD OF ELECTRIC SHOCK NOTES 1 The unit of resistance ohm is omitted K 1000 ohms M Mega ohm 2 All resistors are 1 8 watt unless otherwise noted 3 All capacitors are µF unless otherwise noted P µµF VOLTAGE MEASUREMENT CONDITIONS 1 Voltages in parenthesis...

Страница 27: ...27 14A1 RU 14A2 RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J SCHEMATIC DIAGRAM CRT Unit ...

Страница 28: ...29 28 14A1 RU 14A2 RU 14A1 RU 14A2 RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J 11 12 13 14 15 16 17 18 19 SCHEMATIC DIAGRAM MODEL 14A1 RU MAIN Unit ...

Страница 29: ...31 30 14A1 RU 14A2 RU 14A1 RU 14A2 RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J 11 12 13 14 15 16 17 18 19 SCHEMATIC DIAGRAM MODEL 14A2 RU MAIN Unit ...

Страница 30: ...33 32 14A1 RU 14A2 RU 14A1 RU 14A2 RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J 11 12 13 14 15 16 17 18 19 BLOCK DIAGRAM 1 3 MODEL 14A1 RU MAIN Unit PWB A MAIN Unit ...

Страница 31: ...35 34 14A1 RU 14A2 RU 14A1 RU 14A2 RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J 11 12 13 14 15 16 17 18 19 BLOCK DIAGRAM 2 3 MODEL 14A2 RU MAIN Unit PWB A MAIN Unit ...

Страница 32: ...36 14A1 RU 14A2 RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J BLOCK DIAGRAM 3 3 CRT Unit PWB B CRT Unit ...

Страница 33: ...37 14A1 RU 14A2 RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J PRINTED WIRING BOARD ASSEMBLIES PWB B CRT Unit Wiring Side ...

Страница 34: ...39 38 14A1 RU 14A2 RU 14A1 RU 14A2 RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J 11 12 13 14 15 16 17 18 19 PWB A MAIN Unit Wiring Side ...

Страница 35: ...41 40 14A1 RU 14A2 RU 14A1 RU 14A2 RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J 11 12 13 14 15 16 17 18 19 PWB A MAIN Unit Component Side ...

Страница 36: ...D507 RH DX0475CEZZ R Diode AB D508 RH EX0647GEZZ R Zener Diode AA D509 RH EX0647GEZZ R Zener Diode AA D510 RH EX0867CEZZ R Zener Diode AC D511 RH EX0867CEZZ R Zener Diode AC D512 RH DX0475CEZZ R Diode AB D513 RH DX0475CEZZ R Diode AB D514 RH EX0903CEZZ R Zener Diode AC D515 RH EX0903CEZZ R Zener Diode AC D602 RH DX0475CEZZ R Diode AB D603 RH DX0131CEZZ R Diode AC D604 RH DX0475CEZZ R Diode AB D605...

Страница 37: ...lytic AM C708 RC KZ0160GEZZ R 0 01 250V Ceramic AC C709 RC QZA471TAYJ R 470p 50V Mylar AB C711 RC KZ0339CEZZ R 680p 2kV Ceramic AD C712 VCQYTA1HM102J R 1000p 50V Mylar AA C713 RC KZ007JCEZZ R 0 01 250V Ceramic AC C714 RC KZ0338CEZZ R 560p 2kV Ceramic AD C715 VCKYPA2HB102K R 1000p 500V Ceramic AA C716 VCEA0A1EW107M R 100 25V Electrolytic AC C717 VCQYTA1HM182J R 1800p 50V Mylar AA C718 VCEAGA2AW475M...

Страница 38: ...504 VRD RM2HD150J R 15 1 2W Carbon AA R505 VRG PD2HD330J R 33 1 2W Fuse Resistor AC R506 VRD RA2BE124J R 120k 1 8W Carbon AA R508 VRD RM2HD221J R 220 1 2W Carbon AA R509 VRD RM2HD1R0J R 1 1 2W Carbon AA C753 VCKYPA2HB102K R 1000p 500V Ceramic AA C754 VCEA0A1CW476M R 47 16V Electrolytic AB C755 VCEA0A1CW108M R 1000 16V Electrolytic AD å C759 VCKYPA1HB102K R 1000p 50V Ceramic AA C760 RC KZ0339CEZZ R...

Страница 39: ... QPLGN0541CEZZ R Plug 5pin K 14A2 RU AB R510 VRN MD2AL101J R 100 1 10W Metal Film AA R511 VRN MD2AL101J R 100 1 10W Metal Film AA R513 VRD RA2BE393J R 39k 1 8W Carbon AA R514 VRN MD2AL101J R 100 1 10W Metal Film AA R515 VRN MD2AL272J R 2 7k 1 10W Metal Film AA R516 VRD RM2HD223J R 22k 1 2W Carbon AA R602 VRN VV3AB1R5J R 1 5 1W Metal Film AA R603 VRD RM2HD102J R 1k 1 2W Carbon AA R604 VRD RA2BE393J...

Страница 40: ...272J R 2 7k 1 2W Carbon AA R888 VRD RA2BE471J R 470 1 8W Carbon AA R892 VRD RA2BE102J R 1k 1 8W Carbon AA R893 VRD RA2BE102J R 1k 1 8W Carbon AA R894 VRD RA2BE102J R 1k 1 8W Carbon AA R898 VRD RA2BE471J R 470 1 8W Carbon AA R899 VRD RA2BE471J R 470 1 8W Carbon AA MISCELLANEOUS PARTS P851 QPLGN0661CEZZ R Plug 6pin K AD P882 QPLGN0561CEZZ R Plug 5pin K AB å SC881 QSOCV0839CEZZ R CRT Socket AK MISCEL...

Страница 41: ...Ref No Part No Description Code Ref No Part No Description Code 47 14A1 RU 14A2 RU 14A2 RU 1 1 2 1 2 1 4 1 5 1 6 1 3 1 14A1 RU 1 1 2 1 2 1 4 1 5 1 6 1 3 1 ...

Страница 42: ...ublication 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 CORPORATION AV Systems Group Quality Reliability Control Center Yaita Tochigi 329 2193 Japan DSEMPSREC TQ1027 S Nov 2000 Printed in Japan NA KY ...

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