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D-SUB PIN Distribution

This procedure gives you instructions for installing and using the LCD TV display.

(1) Position the display on the desired operation and plug the power cord into a convenient AC outlet. Three-wire

power cord must be shielded and is provided as a safety precaution as it connects the chassis and cabinet to

the electrical conduct ground. If the AC outlet in your location does not have provisions for the grounded type

plug, the installer should attach the proper adapter to ensure a safe ground potential.

(2) Connect the 15-pin color display shielded signal cable to your signal system device and lock both screws on the

connector to ensure firm grounding. The connector information is as follow:

15 - Pin Color Display Signal Cable

Pin NO.

Description

Pin NO.

Description

Red video input

DDC +3.3V (or 5V)

Green video input /SOG

Logic ground

Blue video input

GND

Serial data line (SDA)

5 GND–

cable

detect

H. Sync / H+V

Red video ground

V. Sync

Green video ground

Data clock line (SCL)

Blue video ground

Содержание AT3245

Страница 1: ...1 Acer AT3245 AT3246 Service Guide ...

Страница 2: ...2 Service Guide Version and Revision Version Date Revision History TPV Model Name A00 Apr 25 08 Initial release E328M2NBWAAZN ...

Страница 3: ...ed its distributor or its dealer assumes the entire cost of all necessary servicing repair and any incidental or consequential damages resulting from any defect in the software Acer is a registered trademark of Acer Corporation Intel is a registered trademark of Intel Corporation Pentium and Pentium II III are trademarks of Intel Corporation Other brand and product names are trademarks and or regi...

Страница 4: ...erference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television recep...

Страница 5: ... the grounded plug z Unplug the unit during a lightning storm or when it will not be used for long periods of time This will protect the monitor from damage due to power surges z Do not overload power strips and extension cords Overloading can result in fire or electric shock z Never push any object into the slot on the monitor cabinet It could short circuit parts causing a fire or electric shock ...

Страница 6: ...er 1 Optical Specifications 13 Connecting Peripherals 14 Chapter 2 Front Panel Controls 14 Remote Control OSD Operating Instructions 15 Using The Remote Control 15 Using The OSD Menus 17 Chapter 3 LOGO 25 Chapter 4 Machine Disassembly 26 Chapter 5 Trouble Shooting 31 Chapter 6 Upgrade Firmware 35 Chapter 7 White Balance Luminance Adjustment 40 FRU Field Replaceable Unit List 43 Exploded Diagram 44...

Страница 7: ...7 Monitor Features General Specifications Chapter 1 ...

Страница 8: ...8 ...

Страница 9: ...D panel surface with absorbent cotton or soft cloth in case of it being soiled 3 Please wipe out drops of adhesive like saliva and water in LCD panel surface immediately They might damage to cause panel surface variation and color change 4 Do not apply any strong mechanical shock to the LCD panel 1 2 Operating Precaution 1 Please be sure to unplug the power cord before remove the back cover be sur...

Страница 10: ... the grounded type plug the installer should attach the proper adapter to ensure a safe ground potential 2 Connect the 15 pin color display shielded signal cable to your signal system device and lock both screws on the connector to ensure firm grounding The connector information is as follow 15 Pin Color Display Signal Cable Pin NO Description Pin NO Description 1 Red video input 9 DDC 3 3V or 5V ...

Страница 11: ...11 Factory Preset Display Modes VGA HDMI Input Signal Reference Chart ...

Страница 12: ...is built in Panel Features High brightness 500 nits Ultra high contrast ratio 1500 1 Faster response time gray to gray average 6 5ms High color saturation NTSC 72 Ultra wide viewing angle 176 H 176 V CR 20 with Super MVA technology DE Data Enable only mode LVDS Low Voltage Differential Signaling interface 180 degree rotation display option Color reproduction nature color Low color shift function R...

Страница 13: ...13 Electrical Characteristics Optical Specifications Test Conditions Optical Specifications ...

Страница 14: ...14 Connecting Peripherals Front panel controls Chapter 2 ...

Страница 15: ...formation dependent on input source type 13 CH LIST Press to launch the channel list See page 40 14 VOL Press to increase or decrease the volume 15 CH up down Press to sequentially select the TV channel 16 Sound Press to turn audio mode to Surround mode 17 Number keys 18 RECALL Press to return to the previous channel 19 ENTER Press to confirm channel number selection 1 POWER Press to turn your TV ...

Страница 16: ...een 4 REVEAL Press to reveal hidden teletext information 5 SUBPAGE Press to access the teletext s subpages directly 6 SIZE Press once to zoom teletext page to 2X Press again to resume 7 TTX MIX TELETEXT MIX Press to switch from TV AV to Teletext mode Press to overlay teletext page on the TV image 8 HOLD Press to pause the current teletext page in multi page viewing mode ...

Страница 17: ...17 Using the OSD Menus ...

Страница 18: ...18 ...

Страница 19: ...19 ...

Страница 20: ...20 ...

Страница 21: ...21 ...

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Страница 24: ...24 ...

Страница 25: ...ere is no video input signal present When there is no video input signals this monitor following a time out period will automatically switch to an OFF mode This reduces the monitor s internal power supply consumption After the video input signal is restored full power is restored and the display is automatically redrawn The appearance is similar to a Screen Saver feature except the display is comp...

Страница 26: ...mble the monitor for maintenance The tools listed as below are that we may use during this procedure 1 A proper screwdriver 2 A pair of glove 3 A pliers 4 A plastic knife Disassembly Procedure 1 Remove the screws to remove the stand 2 Remove the screws to remove the rear cover Chapter 4 ...

Страница 27: ...27 3 Remove 4 screws to remove the bkt vesa top 4 Release the connectors ...

Страница 28: ...28 5 Remove the speakers 6 Remove the main board power board ...

Страница 29: ...29 7 Remove the bkt PCB holder 8 Release the key board and IR board 9 Remove the BKT panel support ...

Страница 30: ...30 10 Remove the bezel 11 Remove the 6 screws to release the panel ...

Страница 31: ...ange key board IR board Check U400 Change U400 Check I2 C bus Check key board IR board Check I2 C communication No picture OK NG OK OK NG Check 24V power supply OK Check the power supply circuit NG NG Check main board Standby power supply Change U152 OK NG ...

Страница 32: ...k Tuner Replace Tuner Check LVDS cable Check input Replace LVDS cable Check panel Replace panel OK OK NG OK OK NG OK OK NG OK Check the source Reset source NG OK Check input signal TV SIF Check TV system Reset TV system NG Check TU200 NG Change TU200 Check U400 OK OK Change U400 NG Check U600 OK NG Change U600 Check speaker NG Change speaker Check if mute OK ...

Страница 33: ...C926 C928 NG Replace IC931 or Q931 OK Check T931 OK Replace T931 Replace D935 or C926 or C928 NG NG Check the source OK Reset source Check LVDS cable NG Reset LVDS cable OK Check Q932 IC901 Q901 NG Replace Q932 or IC901 or Q901 OK OK Check U400 NG Replace main board OK Check panel NG Replace panel Check IC951 Q951 Q952 NG Replace IC951 or Q951 or Q952 OK Check T951 NG Replace T951 OK Check D955 D9...

Страница 34: ...OSD is unstable or not working Is Key Pad Board connecting normally Connect Key Pad Board Is Button Switch normally Replace Button Switch Y N N Is Key Pad Board Normally Replace Key Pad Board Y N Y Check Main Board ...

Страница 35: ...all USB driver to your computer from the ISP board USB Driver file ISP board USB driver include three files 1 PL 2303 Driver InstallerV2021 exe 2 ser2pl sys 3 UTS2pl sys 4 Install PL 2303 Driver InstallerV2021 exe Push Next Chapter 6 ...

Страница 36: ...36 Push Finish 5 ser2pl sys UTS2pl sys two files should copy to C WINDOWS system32 drivers replace original files ...

Страница 37: ...se USB port connecting PC MT537x or MT Board via ISP board Code number 715G537XL2 USB Cable Use Desktop PC or Notebook USB Port Step 3 Update TV I Open the MtkTool to Load bin file Example F3_dbg_image bin Set Auto Set Flash BaudRate ...

Страница 38: ...38 ...

Страница 39: ...39 II Set COM port resource that used by USB Port III Set Baud rate 115200 High speed item Enable MT537x MT ...

Страница 40: ...40 IV Click Upgrade button Waiting for Finished message V Main board Power Off _ On ...

Страница 41: ...l menu mode 3 Apply TVBar100 pattern with color bar pattern by signal generator 4 Enter factory mode menu press MENU 234 then enter FAC mode Alignment 1 At FAC mode menu select FACTORY Picture ADC Auto Colour item Then press key to adjust ADC_GAIN_R ADC_GAIN_G ADC_GAIN_B and ADC_OFFSET_R ADC_OFFSET_G ADC_OFFSET_B Then store those values to NVM White Balance alignment 1 Select source as HDMI1 2 App...

Страница 42: ...quirements Input Signal Type PC VGA signal 1024X768 60Hz PC mode with PGCWRGB pattern see pattern 1 Input Signal Strength 0 7 Vp p linear voltage Input Injection Point PC D SUB input Pattern 1 Alignment method Initial Set up 1 Select source as VGA 2 Set Contrast 50 CMO and Brightness 50 CMO at Standard menu mode 3 Apply PGCWRGB pattern 1 pattern by VGA pattern generator 4 Enter factory mode menu p...

Страница 43: ...r whatever reasons a part number change is made it will not be noted in the printed Service Guide For ACER AUTHORIZED SERVICE PROVIDERS your Acer office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines NOTE To scrap...

Страница 44: ...44 Exploded Diagram Model AT3245 AT3246 ...

Страница 45: ...45 EDID Data DDC DATA for For D SUB Input EDID data 128 bytes ...

Страница 46: ...46 PCB Layout Main Board Layout Chapter 9 ...

Страница 47: ...47 ...

Страница 48: ...48 Power Board ...

Страница 49: ...49 Key Board IR board ...

Страница 50: ... C135 NC 22uF 10V 12V NC 5V_STB Q107 NC MUN2211TIG Yes R104 3 9KOHM 5 1 10W SMD 0402 C108 10U 16V R107 1K 1 10W 5 C102 33N 16V OPWRSB 1V1 Normal High Stand_By Low OFF Low BRIGHT_ADJ 17 R120 NC 0R05 1 4W R143 NC 0R05 1 4W R106 3 9KOHM 5 1 10W C107 470uF 16V OPWRSB 1V8 Normal High Stand_By Low OFF Low C116 SMD 0402 DV11 SMD 0402 C109 100N 16V L102 15uH FB101 220R 2000mA 1 2 SMD 0402 USE 330uF 16V GF...

Страница 51: ... SMD 0402 N C R175 C161 100uF 16V R167 1 OHM 5 1 10W N C C174 NC 330P 50V SI5441 N C N C U155 C165 R152 120 OHM 1 1 10W Panel VCC 12V N C 5V_STB N C R160 NC 56R 1 8W NO N C L150 22uH R166 15KOHM 1 1 10W N C C165 100N 50V 100R 4U7 22U C177 47uF 16V U152 AME8810 AEGTZ 0 6A 3 3V 1 2 3 4 GND VOUT heat sink VIN 4 N C C156 NC 100N 16V R174 4 7KOHM 1 1 10W C156 1K C155 100uF 16V Vo 1 25 x 1 1R 120R 1 26V...

Страница 52: ...R_CLK MPX1 ATN_DET AVDD25_SADC ATN_RX MPX0N CI_PDD0 0402 SMD C226 100R NXP_DIF1 100R R218 R206 100R 1 16W 5 75R 5V_T CI_OEB 10 FAT_IN 0402 SMD 0R 5V_T IF_AGC_OUT C208 10N 16V FB203 120R 500mA 1 2 GND 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 5V_TUNER 0402 SMD R219 5V_TUNER NXP_DIF1 C207 10N 16V R203 NC 0R05 1 10W 5 MPX0 TUNER_CVBS R213 75R 1 10W 1 L200 2 2uH 100R NC R211 10 OHM 5 1 10W C221 1UF 6V3 ...

Страница 53: ... 16V If Stuff MT5133 TUNER_SCL MT5131_IF_AGC R236 R237 NC REFTOP DVDD18 DVDD33 C233 100N 16V MAIN_SCL 6 11 DV33 R232 0R05 1 10W 5 C245 100N 16V 23 C232 100N 16V 16 REFBOT C285 47N 16V R236 NC 4K7 1 10W 5 X230 NC 27MHZ 4 3 2 1 VCC OUT GND EN RESET C288 NC 47PF 50V C293 100N 16V TS_SYNCO 3 10 AOSDATA4 16 REFTOP TS FROM MT8295 C292 100N 16V DVDD33 TS_CKO 3 10 DVDD33 U230 NC MT5131PE 1 2 3 4 5 6 7 8 9...

Страница 54: ...OOT DV18_DDR 1 8 0402 SMD C277 1uF 16V 0402 SMD C262 100N 16V 0402 SMD C261 100N 16V OPCTRL5 OPWM0 6 OPWM1 6 17 SMD 0402 HP_SC_MUTE 6 16 OPWM0 1 C269 100N 16V C267 100N 16V R258 4K7 1 16W 0402 SMD Core Reset 0 9V 0402 SMD DV33 1 AOBCK DV33 C259 100N 16V AOLRCK 16 AOBCK 16 1 R252 NC 4K7 1 16W X OPWM2 6 C254 1uF 16V 0402 SMD Scan BGA Mode 1 0 0 DDR BYPASS OPWM1 I O BYPASS X DV33SB U400I MT5336PKR A3...

Страница 55: ... R307 10K 1 16W 5 EDID_WEN RESET_CI R317 1 OHM 5 1 10W DV33 ADIN1 12 HPD1 R341 0R05 1 16W AMP_MUTE 5 16 OPWM0 5 MANUAL_RESET NC KEY_UP_DN_DCSW_MTK HDMI2_SDA 15 LED_G HPD0 RESET_CI MANUAL_RESET INVERTER_SW 0402 SMD DV33SB HDMI2_SCL 15 HDMI3_SCL OPWRSB LED_R R315 10K 1 16W 5 R302 10K 1 16W 5 NC HPD1 15 MAIN_SCL STAND_BY AVSS_XTAL C313 NC 10N 50V C305 10P 50V DV33SB 0402 SMD PANEL_VCC_ON OFF 24V_DET ...

Страница 56: ...L 1 2 3 4 CN321 NC CONNNECTOR 1 2 3 4 6 5 USB 2 0 AV33 AV12 AV12 2 13 15 USB_DP C327 100N 16V 0402 SMD C322 1uF 16V R333 NC 22R 1 16W 5 t TH320 NC PTCR 1 2 C329 1uF 16V FB321 120R 500mA 1 2 AVDD12_PLL C324 100N 16V C330 100N 16V USB_VRT AVSS_PLL 5V_SW AVDD12_PLL C328 NC 100P 50V AVSS_PLL D321 NC BAV99 3 1 2 AV33 2 4 15 16 17 USB_DP SMD AVDD12_PLL AV33 TN0 D322 NC BAV99 3 1 2 0402 SMD R332 NC 22R 1...

Страница 57: ...RDQ26 RDQM3 U352 16Mb x16 DDR FBGA 84 A1 A2 A3 A7 A8 A9 B1 B2 B3 B7 B8 B9 C1 C2 C3 C7 C8 C9 D1 D2 D3 D7 D8 D9 E1 E2 E3 E7 E8 E9 F1 F2 F3 F7 F8 F9 G1 G2 G7 G8 G9 H1 H2 H3 H7 H8 H9 J1 J2 J3 J7 J8 J9 K2 K3 K7 K8 K9 L1 L2 L3 L7 L8 M2 M3 M7 M8 M9 N1 N2 N3 N7 N8 P2 P3 P7 P8 P9 R1 R2 R3 R7 R8 G3 VDD NC VSS VSSQ UDQS VDDQ DQ14 VSSQ UDM UDQS VSSQ DQ15 VDDQ DQ9 VDDQ VDDQ DQ8 VDDQ DQ12 VSSQ DQ11 DQ10 VSSQ DQ...

Страница 58: ... 5V_STB R378 10K 1 10W LED_G For flash function when press remote control CI_ALE 10 DV33 CI_PDD3 JTRST POOE LED_R 11 JTMS CI_POWE KEY_UP_DN_DCSW Q391 NC 2N7002 R385 4K7 1 10W LED_R Enable Stand_By Low Disable High W CEC POCE0 JTDI CI_PDD2 CN391 63385 5P 2 0mm 1 2 3 4 5 TO KEY PAD BOARD JTCK NVM_WEN JTRST RC6_MTK CI_PDD3 KEY_MENU_L_R_SOURCE PDD0 CI_RB W O CEC R379 10K 1 10W TP392 1 C390 100N 16V LE...

Страница 59: ...D1 D11 D12 D13 D14 GND33 D15 CE2 VS1 GPIO7 GPIO8 GPIO9 VCC33 IORD IOWR A17 A18 A19 A20 A21 GND33 A22 A23 A24 A25 VS2 RESET VCC18 WAIT INPACK REG BVD2 BVD1 D8 GND18 D9 D10 CD2 GPIO10 GPIO11 GPIO12 CI_CEB CI_WEB CI_DATA7 CI_DATA6 VCC33 CI_DATA5 CI_DATA4 CI_DATA3 CI_DATA2 CI_DATA1 CI_DATA0 GND33 CI_CLE CI_RB CI_INT CI_OEB RESETB XTALI XTALO AVDD33_XTAL AVSS33_XTAL AVDD18_PLL AVSS18_PLL VCC33 TS_VALID...

Страница 60: ... 4K7 1 16W 5 U0RX 0402 SMD R476 NC 3K9 1 16W 5 0402 SMD VGA_VIN U0TX U450 NC WT6702F_SS200 2 1 7 6 9 11 3 13 12 8 4 14 17 18 5 10 19 20 15 16 32KOSCI 32KOSCO TXD IRQ2 GPIOB6 RXD IRQ3 GPIOB7 VIN GPIOB4 GPIOB1 SDA2 VSS GPIOA7 SDA1 GPIOB0 SCL2 HIN GPIOB5 NRST GPIOA6 SCL1 GPIOA3 AD3 IR GPIOA0 AD0 PWM1 GPIOC1 IRQ1 P1 3 GPIOB3 VDD VDD_RTC GPIOA5 SDA3 P1 1 GPIOA4 SCL3 P1 0 0402 SMD RC6 R477 NC 4K7 1 16W ...

Страница 61: ...C1_RIN R526 20K 1 16W 5 SCT1_AUR_IN NEAR IO CONNECTOR SOY1 SC2_Y_CVBS_IN SMD 0402 NEAR MT533X SC2_LIN Y1P 5V_SW ADIN1 6 0402 SMD SMD C_AUTO_DET PB1P SC1_Y_CVBS_IN ADIN1 D503 NC BAS316 1 2 A K SCT2_C_IN D508 NC BAS316 1 2 A K Q500 MMBT3904 L503 0U10 H SCT1_AUL_OUT ADIN2 C513 10U 10V 0402 SMD 5V_SW Y1P Y1P D500 NC BAS316 1 2 A K D2SA ADIN1 R509 0R05 1 10W 5 R507 33KOHM 5 1 10W 0402 SMD SCT1_AV_IN PB...

Страница 62: ...BR1N VGA_HIN 0402 SMD SMD 0402 R588 100R 1 16W 5 RN R593 2K 5 1 16W C568 10N 16V VGA_PLUGPWR L565 0U10 H R559 68R 1 16W 5 Y0_IN Y1N PR1P R555 100 OHM 5 1 10W SOG R597 0R05 1 16W 0402 SMD 5V_SW SOY0 BN VGA_HIN SMD 0402 SMD 0402 Y1P 12 Y0P 0402 SMD SMD 0402 5V_SW C581 10U 10V 5V_SW PB0_IN HSYNC C577 10U 10V 0402 SMD VGA_PLUGPWR 5V_SW DVDD12_VGA R595 2K 5 1 16W R599 NC 10KOHM 5 1 10W AVDD12_RGBADC R5...

Страница 63: ...5 0402 SMD AVSS_CVBS_IF U400F MT5336PKR Y24 W22 AC25 AD24 AF24 AA25 AA24 AA23 AB24 AC24 Y22 AC26 AD26 AD25 AE26 AF26 AE25 AF25 AE24 AB25 W23 Y23 AB22 AC23 AD23 AA22 AB23 DVDD25_VADC AVSS_CVBS_IF GND_TUNER GND_CVBS GND_SV AVDD25_VADC AVDD25_REF AVDD25_VFE VIP_ATV VIN_ATV D2SA CVBS0 CVBS1 CVBS2 CVBS3 SY0 SC0 SY1 SC1 VINDC AVSS_CVBS_IF AVSS_CVBS_IF AVSS_CVBS_IF AVSS_CVBS_IF AVSS_CVBS_IF AVSS_CVBS_IF ...

Страница 64: ...1 2 GPIO7 SMD 0402 RX1_C RX0_2 RX1_1 HPD0 SDA_2 RX2_1 ZD702 PDZ24B 1 2 RX1_0 HDMI1_SDA RX0_C D702 BAS32L 1 2 A K Q707 2SK1828 5V_SW CEC_A RX1_0 CEC_C ZD701 NC BZX384 C5V6 1 2 Q703 BC847C 3 2 1 5V_SW OPWR1_5V HDMI1_SCL D703BAS32L 1 2 A K 0402 SMD SMD 0402 HDMI1_SDA 6 R743 33R 1 16W R728 33R 1 16W R745 4K7 1 16W Q706 BC847C 3 2 1 R708 NC 0 OHM 5 1 16W HPD2 6 U708 M24C02 WDW6P 1 2 3 4 5 6 7 8 E0 E1 E...

Страница 65: ... start from 600 10W MANUAL_RESET C585 100P 50V C602 100N 16V C605 100N 16V FB600 120R 500mA 1 2 C710 10N 50V TP603 1 5V_SW OFF_MUTE C653 4UF7 10V R623 4K7 1 10W R607 10K 1 16W 5 AOSDATA4 4 AV1_RIN 13 SC2_LIN 12 C685 470N 10V Y5V C624 220uF 16V C611 1uF 16V C649 100N 50V AR1O C620 100N 16V AV1_RIN DC_MUTE_SC2 R639 13KOHM 1 1 10W C618 100N 16V FB601 120R 500mA 1 2 WM_OP_VCC WM_OP_VCC 14 L601 33uH 18...

Страница 66: ...3 AVSS33_LVDS C750 100N 16V R764 BRIGHT_ADJ 1 A0N TP752 1 BRIGHT_ADJ TP754 1 AVSS33_LVDS U400C MT5336PKR A11 B11 A12 B12 A13 B13 A14 B14 A15 B15 C13 D13 C14 D14 C15 D15 C16 D16 C17 D17 E13 E12 E14 E16 E15 E17 E18 D18 A17 C18 A16 B16 A0N A0P A1N A1P A2N A2P CK1N CK1P A3N A3P A4N A4P A5N A5P A6N A6P CK2N CK2P A7N A7P AVDD33_LVDS AVDD33_LVDS AVDD33_LVDS AVSS33_LVDS AVDD33_LVDS AVSS33_LVDS AVSS33_LVDS...

Страница 67: ...HM 1 8W C933 220pF D951 LS4148 R934 1M OHM 1 1 4W FB902 BEAD 71G 55 9 T 1 2 R955 2M OHM 1 4W R944 10K OHM 1 8W D938 LS4148 FB CN901 SOCKET 1 2 3 R953 2M OHM 1 4W Q931 STP10NK70ZFP C911 0 1uF R961 51KOHM 5 1 8W R942 470 OHM 1 4W R959 510KOHM 5 1 8W R906 200K OHM 1 4W 24V CN902 CONN 1 2 3 4 5 6 7 8 9 10 11 12 D903 LS4148 R970 1K OHM 1 8W L903 BEAD 1 2 R935 240K OHM 1 1 8W C901 0 047UF B 24V 12V 0712...

Страница 68: ...1 10W CH 2 44V 0 35V KEY1 Vol R007 1 8K OHM 1 1 10W 2 44V R001 11KOHM1 10W R003 1 8K OHM 1 1 10W CH SW007 2 1 3 4 5 VOL R002 4 3K OHM 1 1 10W LOCK TYPE Source C001 0 1uF 25V CN001 CONN 1 2 3 4 KEY2 Pull up R 3 9K ohm to 3 3V 1 04V C002 0 1uF 25V CH 1 73V POWER PCB key location NOTE SW002 2 1 3 4 5 VOL Menu SW003 2 1 3 4 5 R005 11KOHM1 10W CH 1 04V ...

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