Skyworth 8M39A/E Скачать руководство пользователя страница 38

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Service Flow Chart

Has video, no audio

Check if the volume has set to “0” or if it is "mute:

Check if the earphone plug in

Check the audio line & t he audio input circuit is OK

Reset the volume and

remove the earphone line

Fix it

Check voltage of amplifier "mute” pin is “low" level

Check the voltage of CA14 or CA1

Check the mute circuit Q24 Q22

Change the amplifier IC V1

Change D3

Содержание 8M39A/E

Страница 1: ...cription MODEL Engineering Dept Artwork By Checked By Approved By Brand Name JOB NO Date Date Date SERVICE MANUAL 8M39A E 2010 8 17 SKYWORTH SIZE A5 Design and specifications are subject to change wit...

Страница 2: ...components Australia 13 MSD306 black diagram of system components Europe 14 List of long time components and materials 15 List of key parts 16 22 PCB POWER Front 23 PCB POWER Back 24 MAIN PCB TOP 25...

Страница 3: ...3 LCD 8M39A E chassis...

Страница 4: ...70 90 120 For 22LED For 24LED For 32LCD For 22LED For 24LED For 32LCD 250 300 350 4...

Страница 5: ...22 24 is 4 ohm For 32LCD For 32LCD 22 24 is 3W x 2 5...

Страница 6: ...40 40 3 2 1 4 2 50 0 5 80 40 12000 24 22 24 is 12V 6 6...

Страница 7: ...1080 1920 uv uv 40 YES 8 6 46 46 NO NO Standard English Standard 20 Middle 7...

Страница 8: ...4 2 4 0 40 70 0 40 70 0 40 40 85 Y0 50 30000 8...

Страница 9: ...6 1 9 6 1 s t i b 0 1 s t i b 0 1 s t i b 2 1 0 1 8 s i s s a h c f o h t p e d r o l o C 1st panel supplier panel suppliers h t r o w y k S h t r o w y k S 1st panel supplier panel Model h c n i 4 2...

Страница 10: ...lance Mute Volume Balance Mute Volume Balance Mute Sound presets User Speech News Standard Standard Music Sports Movie Personal Standard Music Sports Movie Personal Headphone volume control Separated...

Страница 11: ...p O Software download RS232 CI USB OAD B S U B S U Factory reset Yes in factory menu reset the setting to shipment state Yes in factory menu reset the setting to shipment state Quick view s e y s e y...

Страница 12: ...keys Accessories included h s i l g n E h s i l g n E e c n e r e f e r l o r t n o c e t o m e R IB h s i l g n E h s i l g n E Circuit diagram o N o N Batteries s e y s e y AC power cords l a n o i...

Страница 13: ...D306 DVB T IF Demo Build in MPEG1 2 4 H 264 Decoder JPEG MP3 Decoder 3D Comb filter Video Decoder Side Terminal HDMI2 HDMI1 PC PCaudio in S PDIF Output Y Pb Pr Rear Terminal HDMI IF ATV IF KEY PAD IR...

Страница 14: ...306 DVB T IF Demo Build in MPEG1 2 4 H 264 Decoder JPEG MP3 Decoder 3D Comb filter Video Decoder Side Terminal HDMI2 HDMI1 PC PCaudio in S PDIF Output Y Pb Pr Rear Terminal HDMI IF ATV IF KEY PAD IR R...

Страница 15: ...3840 U9 ELPIDA EDE5116AJBG 8E E 478M E51161 0840 U24 CFEON EN25B64 100FIP 471R N25640 0160 U31 TEXAS EUTECH TPA3113D2 EUA2113 U7 Shenzhen Da yan LM4558 47DG G45580 0080 U49 U50 MPS MP1482DS 476A M148...

Страница 16: ...e Shenzhen Deren Electronic Co Ltd DR 206 AC250V 10A 07 UL BRAB 0016 Shen Zhen Xie Kang Electric Co Ltd XK 09 2 5A 250V 10A 250V MC DPC 861 6 Power plug AR type Shenzhen Deren Electronic Co Ltd DR 212...

Страница 17: ...ctric Wire and Cable Manufacture Co Ltd HO3VVH2 F 2x0 75mm2 MC FCV 3662 Shen Zhen Xie Kang Electric Co Ltd IEC52 RVV 300 300V 2X0 5 0 75 MC FCVT 87 77 Shen Zhen Xie Kang Electric Co Ltd IEC53 RVV 300...

Страница 18: ...C Min 1 7 mm thickness IEC 60707 Tested with appliance AC connector CN1 Young Yak Enterprise Co Ltd YY 2800 250Vac 7A E182481 Zhejian Jinda Electronics Co Ltd 3 96T 250Vac 7A E237523 Cvilux Corporati...

Страница 19: ...ac 124321 Y capacitor CY2 Yinan Don s Electronic Component Co Ltd CT81 1000pF 250Vac 135256 Alternate Shantou High New Technology Development Zone Songtian Enterprise Co Ltd CD 1000pF 400ac 40025754 A...

Страница 20: ...a Industrial Co Ltd SH 04 94V 0 Thick 1 6mm E202404 Alternate Boluo KONKA Printed Board Co Ltd KK4 94V 0 Thick 1 6mm E211940 Alternate Shenzhen Zhong Luo Electronics Co Ltd ZL 03A 94V 0 Thick 1 6mm E2...

Страница 21: ...xinxing Electronic Co Ltd MIP260B 1 L1 02 130 Min 20mH Power Factor Correction PFC Inductor L5 Shenzhen Jing Ye Magnetism Electronic Co Ltd MIP320G B L 5 130 Transformer T7 Shenzhen Shi Yamaxi Electro...

Страница 22: ...050155 Alternate Thinking Electronic Industrial Co Ltd SCK 2 5 6A 14 1m m TUV R50050155 Alternate UL NANJING SHIHENG ELECTRONICS CO LTD MF72 2 5 6A 14 1m m E241319 Alternate UL EPCOS OHG UL S236 CQC I...

Страница 23: ...PCB POWER FRONT 23...

Страница 24: ...PCB POWER BACK 24...

Страница 25: ...MAIN PCB TOP 25...

Страница 26: ...MAIN PCB BOT 26...

Страница 27: ...OUT IN U36 AMS1117 ADJ 3 2 1 4 C12 0 1u C12 0 1u C412 NC 0 1u C412 NC 0 1u L36 15uH 3A L36 15uH 3A 1 2 3 5 4 CON33 DIP 6 2 3 CON33 DIP 6 2 3 1 1 2 2 3 3 4 4 5 5 6 6 R427 100R R427 100R C120 0 1u C120...

Страница 28: ...IO 22 A_DQS1B B15 MVREF F18 PAD_IO 26 A_DQM0 B16 PAD_IO 25 A_DQM1 C17 PAD_IO 12 A_MCLK C12 PAD_IO 10 A_MCLKZ B11 PAD_IO 37 A_CKE C20 PAD_IO 36 A_WEZ B20 PAD_IO 9 A_RASZ B10 PAD_IO 7 A_CASZ A10 PAD_IO...

Страница 29: ...R 7 5 3 1 8 6 4 2 RP5 75RX4 7 5 3 1 8 6 4 2 RP5 75RX4 R107 10k R107 10k 7 5 3 1 8 6 4 2 RP1 22RX4 7 5 3 1 8 6 4 2 RP1 22RX4 7 5 3 1 8 6 4 2 RP6 75RX4 7 5 3 1 8 6 4 2 RP6 75RX4 7 5 3 1 8 6 4 2 RP18 75R...

Страница 30: ...4 0ohm NC R424 0ohm NC C85 NC 0 1u C85 NC 0 1u L405 0 82uH L405 0 82uH Q401 NC MMBT3904 Q401 NC MMBT3904 C464 NC 10n C464 NC 10n R440 100R R440 100R C457 0 1u C457 0 1u R428 22R R428 22R R456 33R R456...

Страница 31: ...2009 Title Size Document Number Rev Date Sheet 1 0 PCMCIA 5 10 Monday November 23 2009 Title Size Document Number Rev Date Sheet 1 0 PCMCIA 5 10 Monday November 23 2009 PWR CTRL CARD DETECT PCMCIA Con...

Страница 32: ...pF 20pF DD73 NC ESD 0402 DD73 NC ESD 0402 DD71 NC ESD 0402 DD71 NC ESD 0402 R153 22K R153 22K DD50 ESD 0402 NC DD50 ESD 0402 NC R157 1K R157 1K R135 10R R135 10R R140 10R R140 10R R146 10R R146 10R DD...

Страница 33: ...75R R62 75R R105 100R R105 100R DD65 NC ESD 0402 DD65 NC ESD 0402 C57 47n C57 47n C22 1u C22 1u R97 0R R97 0R R196 NC 100K R196 NC 100K DD42 NC ESD 0402 DD42 NC ESD 0402 CON36 CON4 2 0mm CON36 CON4 2...

Страница 34: ...K C240 NC 0 1u C240 NC 0 1u C259 200p C259 200p Q22 MMBT3906 Q22 MMBT3906 CA61 470uF 16V CA61 470uF 16V R58 100R R58 100R R302 200K R302 200K C237 200p C237 200p C231 1u C231 1u R316 330R R316 330R C2...

Страница 35: ...Source Input 100 color bar pattern signal select AUTOTUNE item Press button to auto adjust the ADC value when show OK finished 2 VGA Source Input tessellated white black signal select AUTOTUNE item pr...

Страница 36: ...DVANCED Software Update USB ADVANCED Set Password 2 Press button Input the password 0000 Free Record Limit 6Hr Please enter password Clear Cancel 3 Press button Select the SW Update USB Press OK butto...

Страница 37: ...signal should be input from VGA audio input port Input the analog audio signals from VGA audio input port P3 Check the sound from SPK Check if HDMI3 HDMI4 is OK Update the main software and do EPROM r...

Страница 38: ...is mute Check if the earphone plug in Check the audio line t he audio input circuit is OK Reset the volume and remove the earphone line Fix it Check voltage of amplifier mute pin is low level Check th...

Страница 39: ...signal should be input from VGA audio input port Input the analog audio signals from VGA audio input port P3 Check the sound from SPK Check if HDMI3 HDMI4 is OK Update the main software and do EPROM r...

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