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LED TV SERVICE MANUAL

Model Name: STV-32LED11

Version NO : 1.0

The release of this document is under controlled by the company. Any extra

copy of this document must be written permission by the product manager.

Содержание STV-32LED11A

Страница 1: ...D TV SERVICE MANUAL Model Name STV 32LED11 1A Version NO 1 0 The release of this document is under controlled by the company Any extra copy of this document must be written permission by the product manager ...

Страница 2: ... PRECAUTIONS 05 CHAPTER 03 PRODUCT ROUGH SPEC 07 CHAPTER 04 MAIN COMPONENT DIAGRAM 07 11 CHAPTER 05 EASY TROUBLE SHOOTING 11 15 CHAPTER 06 TOOUBLE SHOOTING FLOW CHART 16 21 CHAPTER 07 MAIN BOARD SCHEMATICS 21 34 CHAPTER8 PWERT BOARD SCHEMATICS 34 35 CHAPTER9 FIRMWARE UPDATE SOP 36 39 ...

Страница 3: ...3 RECORDS OF REVISION Revision No Revision Date Page Reason Description V1 0 2012 11 30 All Initial Release ...

Страница 4: ...arnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt within this service information by anyone else could result in serious injury or death ...

Страница 5: ...the AC outlet Do not use an isolation transformer during this check 2 4 2 Connect a 1500 ohm 10 watt resistor paralleled by a 0 15uF capacitor between each metallic part and a good earth ground 2 4 3 Use an AC voltmeter with 1000 ohm volt or more sensitivity and measure the AC voltage across the combination 1500 ohm resistor and 0 15uF capacitor 2 4 4 Move the resistor connection to each exposed m...

Страница 6: ...nnel 199CH ATV Teletext 1000Page Modulation NA Video System NA Sound System NA Basic Functions NA Max Storage Channel NA DTV Teletext NA COMB Filter 3D Deinterlace 3D Audio power output 2 X 9W 8ohm THD N 10 1KHz Audio Frequency Response 100Hz 15KHz OSD Language Eng Fre Gen Ita Rus Put Other Parameter Panel Resolution Up to 1920 1080 AV Input 1 S Video Input NO SCART Input 1 CI Common Interface NO ...

Страница 7: ...D spec 4 8 KV Reference Operation Temperature 0 40 C Operating 20 60 C Storage Environmental Conditions Relative Humidity 10 85 Operating 5 95 Storage CHAPTER 4 MAIN BOARD CONNECTION 5 1 Main Board TOP View 5 2 Main Board Botton View ...

Страница 8: ...8 5 3 Main Board Connection ...

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Страница 12: ...link that means the panel or other parts of equipment is broken most likely by unproper input voltage Ensure the input voltage of every component and then check the part that is suspected damaged The screen goes black after a shorting blink If the panel can work normally at the other time it may be caused by bad mainboard Upgrade to the latest software first if that does not work attempt to change...

Страница 13: ...t dark light line s on screen If the lines link together and become a bad band upgrade the software and then check the ports abd circuits of brokendownoutput mode s If the dark light line or band apprears in all the input modes please change the LCD panel But we suggest you check the panel inlet board which links the panel and mainboard though LVDS cable first because sometimes the liquid crystal ...

Страница 14: ...for more details and resolution ways Check if there is anything should not exist in the speaker hollow space such as screws Noise Check if the speakers are bad Check if the antihunting EVA is broken or missing Check the screws that fasten the keyboard to the cabinet They may be lost or getting loose Keys are sunken The key set may be bad change them 7 5 Troubleshooting for Remote Control Check the...

Страница 15: ...ee whether there is a short circuit between each soldering joint Functions of keys are out of order If a key is supposed to be able to achieve more than one functions but it can achieve not all of them that is usually caused by wrong software Please update the latest and correct software for a try If you can t ensure where the problem comes from change the keyboard for a try If that still can t he...

Страница 16: ...16 CHAPTER 6 TROUBLE SHOOTING FLOW CHART ...

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Страница 20: ...20 6 2 Power Board Trouble Shooting Guide ...

Страница 21: ...Fail Y N N Confirm U1 U2 Q13 T1F Y Y Confirm D14 Q10 Q12 Confirm D14 Q10 Q12 N Y N N Y Confirm U1 U2 Q13 T1F Y N Y Y Confirm Q11F Q12F N Check 12V 24V is ok Conne ct All Pin Check BLK OK Check 12VB 24VB Voltage is ok Confirm D20 Q2 Q5 ZD1 Confirm Q7F IC1F IC2F D1F Check all electric function Check The Lord LED output line is ok Confirm IC1F IC2F and peripheral unit Check VDD Voltage of IC1F and IC...

Страница 22: ...22 CHAPTER 7 MAIN BOARD SCHEMATICS ...

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Страница 34: ...34 IR OARD KEY BOARD CHAPTER 8 POWER BOARD SCHEMAT ...

Страница 35: ...51 C15 5VSB 12V C38 Q8 R48 D14 R46 C39 ZD4 R52 Q4 R62 R63 ZD6 R53 C20 12VB GATE 12V PC1 R57 R58 C41 R59 A K R IC1 R60 R61 R41 R45 5VA 5VSB 24VB C34 Q7 C35 R34 D10 R71 R35 ZD2R37 C17 R55 R56 24VB ZD5 GATE 24V 1 2 3 4 5 6 7 8 9 10 11 12 13 CON2 5V 5V PS ON 5VSB 5V 12V 1 2 3 4 5 6 CON3 12V BK ADJ 1 2 3 4 CON4 24V 1 2 3 4 5 6 7 8 CON4A 24V 1 2 3 4 5 6 U100 R39 R93 R54 D8 E E C C B B Q11 Q12 VCC VCC Q9...

Страница 36: ...ails piease use11 1means 9 2 PC Update 2 The USB ISP to connect to the PC s USB tool port install the driver 2 1 Card upgrade the USB ISP tools through 4pin wire connected to the board CN18 blue port such as The figure below shows 2 2 Machine upgrade the USB ISP tools through 4pin wire connected to the VGA upgrade the board then connect To the machine s VGA port as shown below 3 Open ISP_Tool exe ...

Страница 37: ...37 Chart 1 4 attack READ icon enter the Update interface Chart 2 5 choose Update 6 Turn on the main board or the TV set click the connect picture link target board ...

Страница 38: ...art 6 6 2 1 1 please check if the link on the tooling is normal including the USB ISP installation right or not 6 2 2 please confirm the main board or the TV SET if all have been connected with the adapter and being in boot state 6 2 3 After checking and revising please click the connect again and link 6 3 After checking and revising please click the connect again and link Chart 7 6 3 1 course for...

Страница 39: ...39 Chart 8 6 3 2 successful Update Chart 9 6 3 3 If update fails try starting from the 4 update The End ...

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