Acer AT1930 Скачать руководство пользователя страница 51

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SUBCEC

R534 5R6 1/16W

HDMI_WP

5,8

HDMI_RX0-_3

HD_+5V2

HDMI_RX1-_3

H_3

Q501

PMBS3904

C510

R537 5R6 1/16W

R523

0 OHM 1/10W

R520
4.7K OHM 1/10W

SDA_HD2

CEC

L512

90 ohm

EMI

H_3 8

R542 22 OHM 1/16W

HDMI_RX1-_1

H_3

D505

VPORT0603100KV05

C504

0.1uF25V

H_3

ZD511
ZMM5V6

R527

100 OHM 1/16W

1.0

Acer AT1930/2230

Tuesday , July 22, 2008

715T2849-1

称爹

06 HDMI Input

OEM MODEL

Size

Rev

Date

Sheet

TPV MODEL

PCB NAME

称爹

T P V ( Top Victory Electronics Co . , Ltd. )

Key Component

絬

隔

瓜

絪

腹

R539 22 OHM 1/16W

R517
100 OHM 1/10W

U505 RClamp0524P.TCT

6
7

9
10

IN1

IN2

IN3

IN4

OUT4
OUT3

OUT2
OUT1

HDMI_RX2-_1

D501
BAT54C

R526

R515

100 OHM 1/16W

R522

0 OHM 1/10W

H_1 8

R538 5R6 1/16W

HD5V2

H_1 8

HDMI_00-

CN501

HDMI

13
16

TMDSD0-

TMDSD1-

TMDSD2-

SCL

DSHLD1

VCC5

CSHLD0

HPD

DSHLD0

CEC

SDA

DDC_GND

DSHLD2

TMDSC+

TMDSC-

SHLD0

SHLD1

SHLD2

SHLD3

L513

90 ohm

HDMI-1

HDMI_WP

5,8

EMI

HDMI_0C-

D510

VPORT0603100KV05

C506

R508

SCL_HD2

R502
1K OHM 1/10W

HPLUGA

R544

10K OHM 1/16W

DDC_SCL1

R504
4.7K OHM 1/10W

EMI

HDMI_RXC-_1 8

H_3

R503

R513

100 OHM 1/10W

HD_+5V1

U501

M24C02-WMN6TP

1
2
3
4

A0
A1
A2

GND

SDA

SCL

VCC

C509

L510

90 ohm

R521

4.7K OHM 1/16W

H_3

EMI

C516

47pF

R533 5R6 1/16W

R524

100 OHM 1/10W

C518

0.1uF25V

+3.3_SUB

U502

M24C02-WMN6TP

1
2
3
4

A0
A1
A2

GND

SDA

SCL

VCC

H_1 8

HDMI_002-_3

R543

10K OHM 1/16W

+5V_STB

SCL_HD1

SDA_HD1

R516
100 OHM 1/10W

R541 22 OHM 1/16W

HD5V2

HDMI_02-

Q503
RK7002

D504

VPORT0603100KV05

HD5V1

HD_+5V2

C514

120pF

H_3

K O

/10

C502
0.1uF

C507

HDMI_RXC-_1

D502
BAT54C

HPD2

C515

470pF

R509

4.7K OHM 1/16W

HD5V1

HDMI_RX2-_3

R532 5R6 1/16W

C512

24C02=>EDID code must
be upto 256byte space,
for HDMI interface.

HDMI_RX1-_1

HPLUGB

R535 5R6 1/16W

C517

47pF

C513

HDMI_RXC-_3

K O

/10

H_1

C501
0.1uF

R518

100 OHM 1/16W

R505
1K OHM 1/10W

D509

VPORT0603100KV05

CEC_INA

L511

90 ohm

HD5V2

DDC_SDA1

HDMI_RXC-_3

DDC_CLK_IN2

HDMI_RX1-_3

DDC_DAT_IN1

HDMI_00C-_3

DDC_DAT_IN2

Q505

PMBS3904

H_1

R536 5R6 1/16W

SDA_HD1

H_1

C505
470pF

H_3

R512
100 OHM 1/10W

24C02=>EDID code must
be upto 256byte space,
for HDMI interface.

H_1

HDMI_001-_3

DDC_SDA2

R531 5R6 1/16W

DDC_SCL2

Q502

PMBS3904

H_3

HDMI-2
side

+5V_STB

HDMI_RX0-_1

D506

VPORT0603100KV05

U506 RClamp0524P.TCT

6
7

9
10

IN1

IN2

IN3

IN4

OUT4
OUT3

OUT2
OUT1

HDMI_RX0-_1

HPD1

H_1 8

CEC_INA

EMI

CEC

HDMI_RX2-_3

C503
0.1uF25V

HDMI_RX2-_1

R528

0 OHM 1/10W

H_3

To scaler

EMI

DDC_CLK_IN1

C511

R514

100 OHM 1/16W

D508

VPORT0603100KV05

HDMI_000-_3

D507

VPORT0603100KV05

HDMI_01-

H_3

R529

0 OHM 1/10W

R530

0 OHM 1/10W

CEC_INB

R519

100 OHM 1/16W

Q504

PMBS3904

R525

27K OHM 1/16W

HD_+5V1

SCL_HD1

HDMI_RX0-_3

EMI

CEC_INB

HD5V1

D503

VPORT0603100KV05

C508

R540 22 OHM 1/16W

EMI

CN502

HDMI

13
16

TMDSD0-

TMDSD1-

TMDSD2-

SCL

DSHLD1

VCC5

CSHLD0

HPD

DSHLD0

CEC

SDA

DDC_GND

DSHLD2

TMDSC+

TMDSC-

SHLD_GND1

SHLD_GND2

SHLD1

SHLD2

SHLD3

SHLD4

SHLD5

U503 RClamp0524P.TCT

6
7

9
10

IN1

IN2

IN3

IN4

OUT4
OUT3

OUT2
OUT1

U504 RClamp0524P.TCT

6
7

9
10

IN1

IN2

IN3

IN4

OUT4
OUT3

OUT2
OUT1

Содержание AT1930

Страница 1: ...1 Acer AT2230 AT2231 Service Guide ...

Страница 2: ...2 Service Guide Version and Revision Version Date Revision History TPV Model Name A00 Jul 23 08 Initial release E228M3NBWAZANN A01 Aug 03 08 Add FRU List E228M3NBWAZANN ...

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: ... Chapter 1 Optical Specifications 12 Connecting Peripherals 13 Chapter 2 Front Panel Controls 13 Remote Control OSD Operating Instructions 14 Using The Remote Control 14 Chapter 3 Using The OSD Menus 16 Chapter 4 Machine Disassembly 23 Chapter 5 Trouble Shooting 27 Chapter 6 Upgrade Firmware 33 Chapter 7 White Balance Luminance Adjustment 36 FRU Field Replaceable Unit List 40 Exploded Diagram 40 C...

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

Страница 8: ...oiled 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 sure the power is turn off 2 Please do not change variable resistance settin...

Страница 9: ...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 2 Green video input SOG 10 Logic ground 3 Blue video input 11 GND 4 GND 12 Serial data line SDA 5 GND cable detect 13 H Sync H V 6 Red video ground 14 V Sync 7 Green vide...

Страница 10: ...10 Factory Preset Display Modes Analog RGB Signal Timing ...

Страница 11: ... screen mode and displays up to 16 7 millions colors The inverter module for the Backlight Unit is not built in Panel Features Super wide viewing angle High contrast ratio Fast response time High color saturation EBU Like Specifications WSXGA 1680 x 1050 pixels resolution DE Data Enable only mode LVDS Low Voltage Differential Signaling interface General Specifications Mechanical Specification ...

Страница 12: ...12 Optical Specifications Test Conditions Optical Specifications ...

Страница 13: ...13 Connecting Peripherals Front panel controls Chapter 2 ...

Страница 14: ...el information dependent on input source type 13 CH LIST Press to launch the channel program list 14 VOL Press to increase or decrease the volume 15 CH up down Press to sequentially select the TV channel 16 Audio effects Press to turn audio mode to Surround mode 17 Number keys 18 RECALL Press to return to the previous channel 19 ENTER No function for these models 1 POWER Press to turn your TV on o...

Страница 15: ...t 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 You can also use navigation key up and down to zoom in or zoom out the teletext page 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 pag...

Страница 16: ...16 Using the OSD Menus ...

Страница 17: ...17 ...

Страница 18: ...18 ...

Страница 19: ...19 ...

Страница 20: ...20 ...

Страница 21: ...21 ...

Страница 22: ... 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 completely off The display is restored by pressing ...

Страница 23: ...ls 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 Disassemble the Base 1 Put the monitor on a clean soft cloth with panel facing to the table Fig 1 Fig 1 2 Remove the screws to remove stand base Fig 2 3 Fig 2 Fig 3 Chapter 4 ...

Страница 24: ...24 Disassemble the back cover 1 Remove four screws to remove back cover Fig 4 Fig 4 Remove the Shielding EMI Fig 5 ...

Страница 25: ...ng wires marked in blue for these boards Fig 6 2 Remove the screws marked in red to remove power board and main board Fig 6 3 Remove the key board Fig 7 Fig 6 Fig 7 Disassemble the speaker Remove the four screws marked in red to remove the speakers Fig 8 9 Fig 8 Fig 9 Key board ...

Страница 26: ...26 Remove the main frame Remove the four screws marked in red to remove the main frame Fig 10 Fig 11 Disassemble the IR board Fig 12 Disassemble the front panel Fig 13 ...

Страница 27: ...ange key board IR board Check U401 Change U401 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 U707 OK NG ...

Страница 28: ...etup Check the source Reset source NG Check signal filter circuit Replace the filter or resistance RF signal Check 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 ...

Страница 29: ...source Reset source NG OK Check input signal TV SIF Check TV system Reset TV system NG Check TU101 NG Change TU101 Check U401 OK OK Change U401 NG Check U601 OK NG Change U601 Check speaker NG Change speaker Check if mute OK ...

Страница 30: ...heck IC902 OVP circuit Check CN902 pin10 11 12V Check AC line volt 110V or 220V Check AC input Check the voltage of C905 Check start voltage for the pin8 of IC901 NG Check the auxiliary voltage is bigger than 10V and smaller than 20V OK NG Check T901 Q903 D906 D904 ZD920 IC903 Check IC901 pin5 PWM wave OK Check IC901 NG NG OK NG OK OK NG ...

Страница 31: ...heck Interface board NG OK Check IC801 NG OK Change ON OFF NG OK Change IC801 Check the input of Q805 Q806 NG Check the output of PT802 Check connector lamp OK NG Change PT802 OK Check IC801 PIN1 15 have the output of square wave at short time Change Q805 Q806 D801 D802 D803 Q804 ...

Страница 32: ...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 33: ...33 Upgrade Firmware 1 Using USB port connecting PC MST99980 Board via ISP board as below Turn on the monitor 2 Run the program ISP_Tool Chapter 6 ...

Страница 34: ...34 3 Click the button Connect if it can identify the type of the device please click the Dis Con and then click the Connect again ...

Страница 35: ...35 4 Click the button Read to load the software file and then click the Auto ...

Страница 36: ...36 5 When the picture showed as below we can click the run to finish to upgrading ...

Страница 37: ...rt picture to User mode and check the x y data Input Signal Strength 1 Vpp for Y signal 700 mVpp for Pb Pr signal Input Injection Point YPbPr RAC jack 720P TVBar100 pattern Alignment method Initial Set up 1 Select source as Component 2 Set Smart picture as User and to be Contrast 50 TBD CMO Brightness 50 TBD CMO at normal menu mode 3 Apply TVBar100 pattern with color bar pattern by signal generato...

Страница 38: ...values to NVM 7 Set color temperature to Cold 8 Adjust the R Gain G Gain B Gain values to meet Cold color coordinates specification below Then store those values to NVM Color temperature Standard Warm Cold x y co ordinates specification Table Reading with Minolta CA 110 Note 1 Use Minolta CA 110 for colour coordinates and luminance check 2 Luminance 250 cd m2 in the center of the screen when Brigh...

Страница 39: ... 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 press MENU 234 then enter FAC mode Alignment 1 At FAC mode menu select FACTORY Picture ADC Auto Colour item Then press key to ...

Страница 40: ... 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 or to return the ...

Страница 41: ...41 Part List Above picture show the description of the following component Item Picture Description 1 Bezel 2 Panel 3 Base 4 Power Board ...

Страница 42: ...42 5 Main Board 6 Key Board 7 IR Board 8 Speaker ...

Страница 43: ...43 EDID Data DDC DATA for D Sub Input ...

Страница 44: ...44 PCB Layout Main Board Chapter 9 ...

Страница 45: ...45 ...

Страница 46: ...46 Power Board ...

Страница 47: ...47 Key Board IR board ...

Страница 48: ...OHM 1 8W R217 47 OHM 1 16W I2C_SCL 8 12 C164 0 1uF TV CVBS C114 0 047uF CVBS1 8 C188 2 2uF C159 47uF 16V Y 8 FB108 300 OHM V5C VCOM1_1 R203 47 OHM 1 16W R133 470 OHM 1 10W R200 100 OHM 1 10W D110 VPORT0603100KV05 SV_C0 R188 33 OHM 2W D121 VPORT0603100KV05 S Video Input C186 NC VIDEO_OUT 4 C181 0 047uF C169 0 047uF R194 NC R130 47 OHM 1 10W V5A V5C T1SIF C172 22pF VCOM0 8 R206 NC L101 300 OHM R131 ...

Страница 49: ...M 1 10W C121 0 047uF R140 47 OHM 1 16W R164 100K OHM 1 10W 1 0 Acer AT1930 2230 A3 4 12 Tuesday July 22 2008 715T2849 1 称爹 04 SCART YPbPr Input OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME 称爹 T P V Top Victory Electronics Co Ltd Key Component 絬隔瓜絪腹 CLOSE TO CHIP R149 75 OHM 1 16W LineMute C127 10UF16V C150 0 01uF LineMute R160 47K OHM 1 10W C145 4 7uF R146 470 OHM 1 16W R169 4 7K OHM 1 ...

Страница 50: ...110 47 OHM 1 16W HS_RGB 8 12 R128 4 7K OHM 1 16W VS_RGB 8 12 5V R126 100 OHM 1 16W DDC_SDA C110 1000pF CN107 DB15 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 17 16 R113 470 OHM 1 16W D104 VPORT0603100KV05 ZD106 TZMC5V6 EMI R118 2 2K OHM 1 16W TXD 8 12 C111 0 1uF25V Q108 PMBS3904 VS_RGB C107 0 047uF 1 0 AT1930 2230 A4 5 12 Tuesday July 22 2008 715T2849 1 称爹 05 VGA OEM MODEL Size Rev Date Sheet of TPV MODEL...

Страница 51: ...ORT0603100KV05 HD5V1 HD_ 5V2 C514 120pF HDMI_002 _3 8 HDMI_RXC _3 R506 47K OHM 1 10W C502 0 1uF C507 NC HDMI_RXC _1 D502 BAT54C 3 1 2 HPD2 C515 470pF R510 47K OHM 1 16W R509 4 7K OHM 1 16W HD5V1 HDMI_RX2 _3 R532 5R6 1 16W C512 NC 24C02 EDID code must be upto 256byte space for HDMI interface HDMI_RX1 _1 8 HPLUGB 8 R535 5R6 1 16W C517 47pF C513 NC HDMI_RXC _3 R507 47K OHM 1 10W HDMI_RX1 _1 C501 0 1u...

Страница 52: ...O2 8 RXE1 RXE2 FB104 NC RXEC 8 RXE0 8 RXE3 FB102 300 OHM RXE2 8 RXO3 RXE2 RXE1 8 RXO3 8 1 0 Acer AT1930 2230 A4 7 12 Tuesday July 22 2008 715T2849 1 称爹 07 Panel I F OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME 称爹 T P V Top Victory Electronics Co Ltd Key Component 絬隔瓜絪腹 RXE0 RXE1 3 3_STB RXEC 8 RXO1 RXE1 FB103 NC RXE2 RXE3 C103 0 1uF Panel Power RXO0 8 VPANEL RXE3 8 RXO2 RXO1 RXO3 RXO2 Q...

Страница 53: ...PO I2C_SDA 3 12 RXD1 R421 NC C406 NC HDMI_000 _3 6 RXE3 7 KEY1 12 HDMI_RX1 _1 RXE2 AUVREF R418 NC C451 NC RXOC 7 R B SWAP for TTL 3 3_STB AVDD_AU 3 3_STB SC_FSW SOY KEY1 MVREF MADR2 SDA_HD2 R412 33 OHM 1 10W C420 NC HDMI_001 _3 6 RASZ 9 MADR11 R455 4 7K OHM 1 10W VS_RGB 5 12 MADR5 VCOM0 HDMI_00C _3 R431 100 OHM 1 10W R403 1M OHM 1 10W SCL_HD1 6 RIN 5 3 3V for AVDD_MPLL AVDD_MemPLL VDDP AVDD_ADC AV...

Страница 54: ...0 A1 A2 A3 A4 A5 A6 A7 A8 A11 D0 D1 D2 D3 D4 D5 D6 D7 RAS CAS WE D8 D9 D10 D11 D12 D13 D14 D15 CLK CS VSS VDD A10 VSSQ VSSQ VSSQ VCCQ VCCQ VCCQ VCCQ A9 CKE VSS NC VDD DQML DQMU BA1 BA0 NC VSSQ VSS VDD RP403 100 OHM 5 1 16W 1 2 3 4 8 7 6 5 BA1 8 DMC ADR0 4M X 16 DQML MDATA4 MDATA10 ADR4 RASZM DATA1 R461 56 OHM 1 10W 3 3MVDD 11 DQMS ADR2 DATA9 DMC MADR10 C431 0 1uF DMQ DATA2 C424 2 2uF BA1 DATA12 DQ...

Страница 55: ...er U601 YDA148 1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 20 19 21 22 23 24 25 26 27 28 29 30 31 32 11 PVDDREG AVDD INLP INLM VREF INRM INRP AVSS PLIMIT PVDDPR OUTPR1 PVSSR OUTMR2 OUTMR1 PVDDMR SLEEPN PROTN CKOUT MUTEN CKIN NCDRC0 NCDRC1 GAIN0 GAIN1 PVDDML OUTML1 OUTML2 PVSSL OUTPL1 OUTPL2 PVDDPL OUTPR2 R678 100 OHM 1 10W C643 10uF 16V R630 4 7K OHM 1 10W D602 RB160M 60TE25 1 2 To SPK_R ExtPD R IN ...

Страница 56: ...WR R737 NC C729 10UF16V R727 33 OHM 2W C714 0 1uF C709 0 1uF C774 0 1uF C775 0 1uF Pin99 Pin165 Pin183 Pin194 Pin207 Pin221 Pin235 C738 1uF FB703 150 OHM C716 10UF16V 3 3_STB C776 0 1uF R759 8 2K OHM 1 10W R734 0 OHM 1 10W 12VP C707 0 1uF C789 0 1uF 1 26Vfor VDDC 3 3V C788 0 1uF INV_PRO C727 10UF16V C721 0 1uF25V FB717 300 OHM 3 3V C753 0 1uF C786 0 22uF C792 0 1uF25V 3 3V for AVDD_MPLL 3 3_STB L7...

Страница 57: ... 1 16W R496 0 OHM 1 16W 3 3_SUB HWRESET 8 33 OHM NC 3 3V 3 3_SUB 3 3_SUB SUB_SDA TURN_ON 8 R490 0 OHM 1 16W R497 0 OHM 1 16W R822 NC C440 10UF16V SUB_SCL R480 33 OHM 1 16W 3 3V OPTION for CEC Stand by Function Add R472 for HWRESET Scalar mac 1 7 R492 0 OHM 1 16W 33 OHM NC R821 NC PS_ON 11 R483 4 7K OHM 1 16W X402 32 768KHz 1 2 OSCO R807 4 7K OHM 1 16W ISP PORT CN403 CONN 1 2 3 4 VS_RGB 5 8 OSCO R8...

Страница 58: ...1 C923 470pF 25V 43K 1 8W 1 67G215S1023KV ZD901 NC D902 FR103 93G 6038T52T 67T 2046812KT C912 0 022uF 25V 5V NC R937 NC 93G 39S 44 T SG902 SPARK GAP FB901 Jumper 1 2 C922 470uF 25V R922 200 1 8W 93G 64 53 F YG906C2RSC NC 61G0805330 2F R904 8K2 1 4W R924 NC R908 100K 2W R900 620K 1 4W IC902 KIA431VLA 56G 158 12 ZD920 RLZ13B R912 10R 1 8W 67G215S1023KV R936 1K 1 4W R931 NC R935 100R 1 4W 12V FG L903...

Страница 59: ...0W ZD803 RLZ5 6B 1 2 C813 33NF CN803 CONN 1 2 R804 5K1 1 10W ATV C805 0 01uF R849 0R05 1 10W R846 0R05 1 10W R828 6 2M 1 2W R805 100R 1 10W Q804 NC R824 R848 NC C811 0 1uF C822 56pF 3KV C816 C824 R839 1M 1 10W R807 100R 1 10W R821 1M 1 10W LV3 CT C801 0 047uF LV2 R802 22R 1 8W R838 1M 1 10W R842 10K 1 10W R822 20K 1 8W 1 Q806 AO4616 57T 600517 1 2 3 4 8 7 6 5 S G S G D D D D CN804 CONN 1 2 065G 3J...

Страница 60: ...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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