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Distributed by Xiamen Overseas Chinese Electronic Co.,LTD (XOCECO)
SERVICE MANUAL
Product Type: LCD TV
Chassis: KS Chassis
Manual Series:
Manual Part#: 9226KS7010
Model Line:
Product Year:
Product Safety Servicing Guidelines....................................................................................1
Remote Control Unit.............................................................................................................2
Main Unit (Front View/Side View/Rear View)........................................................................3
Specifications......................................................................................................................4
Alignment Instructions..........................................................................................................5
Software Upgrade Instructions...........................................................................................11
Working principle analysis of the unit................................................................................15
Block Diagram....................................................................................................................16
Troubleshooting Guides.....................................................................................................17
Wiring Diagram..................................................................................................................22
Schematic Diagram............................................................................................................23
Printed Circuit board layouts..............................................................................................28
Exploded View Parts List....................................................................................................30
CONTENTS
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Table of Contents
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Summary of Contents for Dynex 9226KS7010
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Page 1: Table Of Contents
Distributed by Xiamen Overseas Chinese Electronic Co.,LTD (XOCECO) SERVICE MANUAL Product Type: LCD TV Chassis: KS Chassis Manual Series: Manual Part#: 9226KS7010 Model Line: Product Year: CONTENTS Product Safety Servicing Guidelines..................1 Remote Control Unit......................2 Main Unit (Front View/Side View/Rear View)................3 Specifications........................4... -
Page 2: Product Safety Servicing Guidelines
Product Safety Servicing Guidelines ATTENTION: This service manual is only for service personnel to take 6. Should there be smoke, abnormal smell or sound from the module, reference with. Before servicing please read the please shut the power off at once. Likewise, if the screen is not following points carefully. -
Page 3: Remote Control Unit
Remote Control Unit Remote control INPUT POWER MENU Press to open the on-screen menu. Press to turn off the sound. Press again to MUTE turn on the sound. Press to increase or decrease the volume. VOL+/VOL– Press to select the input source. VIDEO/HDMI/TV •... -
Page 4: Main Unit (Front View/Side View/Rear View)
Main Unit (Front View/Side View/Rear View) ANT/ CABLE IN PC IN Connect this jack to a digital sound system to DIGITAL OUTPUT play your TV’s audio through the sound system. jack For more information, see “Connecting a digital sound system” on page 10. Connect an HDMI device, such as a cable box or HDMI1 jack DVD player, to the jack. -
Page 5: Specifications
SPECIFICATIONS 26” TFT LCD NTSC-M, ATSC VHF: 2-13 UHF: 14-69 CATV: 1-125 CADTV: 1-135 DTV: 2-69 5 W x 2 85 W 646 x 462 x 256 mm (Stand included) 8.2 kg (Stand included) Audio left and right (1) Digital output (1) Headphone jack (1) Note: 1. -
Page 6: Alignment Instructions
ALIGNMENT INSTRUCTIONS 1. Test equipment VG848 (YPbPr, VGA signal generator) VG849 (HDMI signal generator) CA210 (color analyzer) 2. Alignment procedure 2.1 Connect all the boards according to wiring diagram. Connect the power supply and presss “standby” to turn on the TV. 2.1.1 For 32”... - Page 7 ALIGNMENT INSTRUCTIONS 2.2 Alignment flow-chart The alignment flow-chart is shown below (Fig. 1) : Check if DDC, FLASH is written? Make Data Processing Board Mounting alignment (Check if the voltage is 120V) White balance alignment Input test signal, check TV all performance (such as all programs are searched, analog control, etc.).
- Page 8 ALIGNMENT INSTRUCTIONS g) After closing the Factory menu, you can press SLEEP to enter the Factory Menu directly if power is still on. h) In Factory Menu, select “On” for “Aging Mode” to turn on aging mode. Press any button on the unit to exit.
- Page 9 ALIGNMENT INSTRUCTIONS c) Alignment at YPbPr mode First perform ADC calibration: input 75% color bar plus gray step signal in 480i/60Hz format, (VG848 Timing is 968, PAT is 918), enter Factory Menu select ADC Setting, do ADC AUTO adjustment once. White balance adjustment: From VG848 equipment input 8 gray steps signal in 1920 x 1080i /60Hz format.
- Page 10 ALIGNMENT INSTRUCTIONS 4 1920×1080i@59.94/60 Hz 33.75 59.94 74.25 1080i(59.94/60i) 5 1920×1080p@23.98/24 Hz 27.00 23.98/24 74.25 1080p(23.98/24p) 6 1920×1080p@59.94/60 Hz 67.50 60.00 148.50 1080p(59.94/60p) 4.4 Checking VGA jack Input VGA signal (VG848 signal generator)，respectively input all formats of VGA signal which is shown below (Table 9).
- Page 11 ALIGNMENT INSTRUCTIONS Only HDMI2 Write with instrument like NA04 5272402002 AT24C02BN10SU-1.8 32”/37”/42”/46” EDID ALL11 models HDMI3 Write with instrument like NA07 5272402002 AT24C02BN10SU-1.8 EDID ALL11 HDMI1 Write with instrument like NA04 5272402002 AT24C02BN10SU-1.8 EDID ALL11 Only 26” model HDMI2 Write with instrument like NA07 5272402002 AT24C02BN10SU-1.8...
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Page 12: Software Upgrade Instructions
Software Update Instructions This series’ TV chassis provides two software upgrade ports, one is SERVICE PORT, the other is RS232 jack. To use SERVICE PORT, only a USB device is required and the speed is faster, so it is recommended to use the SERVICE PORT. To use RS232 jack, the speed is slower, and more devices are required such as a PC, a set of fixture for upgrade and upgrade software. - Page 13 Software Update Instructions B. Making use of RS232 for upgrade Tips: A PC and the upgrade fixture designed for this KS# chassis are required. Use Mstar on-line writing tool – Mstar ISP Utility, the needed time is longer. 1. Power on the TV, connect the upgrade fixture correctly, open the upgrade software, click “Connect” icon.
- Page 14 Software Update Instructions 3. Click “OK” , then click “Device” (see below figure). Mark “WP Pin pull to high during ISP” option. Mark “New Setting Below” option. Mark Bit7，Bit5，Bit4，Bit3，Bit2 from “Status Register” option. That is, the value of “Register Setting Value”...
- Page 15 Software Update Instructions 5. Click “Auto” . Mark “Erase Device” option, select “File Area”. Mark “Blank”, “Program”, “Verify”, “Exit ISP” options. Click “Run” button, on the right will appear information of upgrade hints. When “Pass” appears, that means the upgrade is successful. 6.
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Page 16: Working Principle Analysis Of The Unit
Working Principle Analysis of The Unit The analog and digital RF signal received by antenna will be sent to integrative tuner TUNER2(DA58GT-13-E, contains HF and IF amplifier circuits), which selects appropriate channel and sends the selected IF signal to the next level by the control of SDA, SCL. The analog RF signal sent to tuner, via high amplify and mixed frequency to get IF signal VIF, then it will be divided into two ways, one way will be sent to acoustic surface-wave ZF3 to IF filter and get better IF characteristics, then it will be sent to NF1(M61111FP) through pin20, 21 to do... -
Page 17: Block Diagram
Block Diagram DDR SDRAM SPI FLASH K4T51163QG-HCF7 MX25L3205DM2C-12G POWER 12V、5V、3.3V、1.8V、1.2V、STB5.0V VGA AUDIO Panel OTHER AUDIO AUDIO AUDIO SWITCH INPUTS LVDS HEF4052BT CVBS ANOLOG DEMO M61111FP TNUER FA2316 AV 1 Video HDCP KEY AT24C04IV SPEAKER AV 2 MSD319EL VIDEO SWITCH YPbPr PI5V330W YPbPr 1 HP AMP... -
Page 18: Troubleshooting Guides
TROUBLESHOOTING GUIDES 1. no picture and no sound Press POWER button Connect the power and Check if the voltage of Is 24V on the power Check the power board on the unit or remote check X601 pin13 on the board normal? control, does indicator... - Page 19 TROUBLESHOOTING GUIDES 2. no picture No picture Can the unit be operated by remote control or Replace main keys on the set? board Is there 24V on the Check the power board Is there any backlight? power board? Replace main Display OSD normally IF X601 pin4/pin5 on board...
- Page 20 TROUBLESHOOTING GUIDES Adjust the main board Which channel is no OTHER Replace main again picture? board Measure NF1 pin1, is Replace main there 1-1.5 VPP signal board or noise wave? Check if the output Check TUN2 and its from TUN2 pin12 is peripheric circuit normally? Check NF1 and its...
- Page 21 TROUBLESHOOTING GUIDES 3. no sound (take TV as an example) No sound Check if there is wave Check if the voltage of Check NV03 and its inputted NV03 X602 pin4/pin5 peripheric circuit pin12/pin25? normal? Check if there is wave outputted from NV01 Check the power board pin1/ pin7? Check if wave output...
- Page 22 TROUBLESHOOTING GUIDES Is there IF 45.75M Check NF1 and its outputtd from peripheric circuit TUNER2 pin12? Check TUNER2 and its peripheric circuit...
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Page 23: Wiring Diagram
Wiring Diagram 30pin PANEL 30pin XS02 13pin X601 40pin XS01 5pin X602 MAIN BOARD 2pin X124 6KS0090110 4pin X122 4pin XV02 IR BOARD 635KS00101... -
Page 24: Schematic Diagram
POWER & BACKLIGHT page1 of 5... - Page 25 IR&KEY&TUNER page2 of 5...
- Page 26 5V_HDMI-1_IN L801 5V_STB STPB3216-310PT N801 5V_HDMI-1_IN NA04 MAX3232CSE 24C02N-10SI27 RA02 C805 VA02 100n BC847AW RA44 HOTPLUG_HDMI-1_OUT DIN-017 100n 5V_HDMI-1_IN XB23 C806 T1OUT RA45 R1IN C807 100n R1OUT S_VIDEO T1IN 100n SDA_HDMI-1 C808 T2IN T2OUT SCL_HDMI-1 NA08 R801 R2OUT R2IN HDMI_CEC_0 RA10 3 .
- Page 27 POWER page 4 of 5...
- Page 28 MSD319 page 5 of 5...
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Page 29: Printed Circuit Board Layouts
R610 C625 C616 569KS06690 V2 VJ02 R611 RS14 R741 C619 R609 N601 RS04 R602 RJ15 V608 R603 R604 C622 C628 A O I L Q C I C T D D C 20090916 V606 C609 XS02 VJ03 DB10 R643 N602 X604 R739 C601... - Page 30 BOTTOM L623 LS06 CS15 RV22 CS06 CS78 R645 L624 CS38 CS77 RS63 R725 RS64 L628 CS39 C809 NS02 CS07 CS37 CS13 LS03 CS25 CS21 CS72 CS74 R729 CS23 R841 RS30 CS02 CS28 CS03 CS20 L626 R842 LS07 L627 RJ19 RJ12 R123 R124 V101...
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Page 31: Exploded View Parts List
Exploded View Parts List...
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