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ViewSonic VSXXXXX service manual 0402, NT68667UFG/C, ADD R446,447, 20K OHM 1/16W, FB403, 300OHM

Models: VSXXXXX

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0402

DVDD				DVDD

VCC3.3

FB401			AVCC				FB406		PVCC
300 OHM			AVCC				300OHM		PVCC
C440				C403		C404				C448
4.7UF 10V				1uF 16V		1uF 16V				1uF 16V
C0805				C0603		C0603				C0603
FB404		DVDD
300 OHM		DVDD
			C410		C412		C430		C423
			0.1UF	16V	0.1UF	16V	0.1UF	16V	0.1UF	16V
300 OHM		ADC_VAA						0402			AVCC
FB407
										2 RX2P
										2 RX2N
										2 RX1P
										2 RX1N
			C439		C447					2 RX0P
			C439		C447					2 RX0N
			1uF 16V		0.1UF	16V				2 RX0N
			1uF 16V		0.1UF	16V				2 RXCP
										2 RXCP
										2 RXCN
									2 DSUB_H
									2 DSUB_V
									2 DSUB_B+
									2 DSUB_B-
									2 DSUB_SOG
									2 DSUB_G+
									2 DSUB_G-
									2 DSUB_R+
									2 DSUB_R-
			+5V
			R403						2 DDC1_SDA
			R403						2 DDC1_SCL
			10K 1/16W 5%						2 DDC1_SCL
R407			10K 1/16W 5%						2 DDC2_SDA
									2 DDC2_SDA
									2 DDC2_SCL
20K OHM 1/16W									2 DDC2_SCL
20K OHM 1/16W				5V_DET
				5V_DET
								3 KEY1		KEY1	R415
								3 KEY1		KEY2	R416
C446	0.1UF		16V					3 KEY2		KEY2	R416
								3 KEY2

										SPI_CE
										SPI_SO
										SPI_SI
										SPI_CK
										WP
									2 VGA_DET
									2 DVI_DET
TP									MSDA		R431
TP1	TX								MSCL		R429
	TX										R412
			DVDD				4 MUTE				R454
							4 MUTE

					R405						X401
				10K 1/16W 5%				C422			2
				10K 1/16W 5%				C422
								0.1UF	16V	C420
										22pF
											1
											12MHz
										C421
										22pF

VCC1.8

FB403

CVDD

300OHM

C406

C407

C442

0.1UF

16V

0.1UF

16V

0.1UF

16V

AVCC

C438

CVDD

1uF/16V

PVCC

C413

ADC_VAA

0.1UF

16V

R401

U401

45

43

52

115

119

26

6

15

17

470 OHM +-1% 1/16W

RX2+

PLLVDD

PLLGND

CVDD CVDD CVDD

ADCVAA

AVCC AVCC

PVCC

5

16

REXT

4

RX2-

7

RX1+

8

RX1-

10

RX0+

11

RX0-

13

RXC+

14

RXC-

41

42 HSYNCI1 VSYNCI1

19

20 BIN1+ BIN1-

21

22 SOG1I

23 GIN1+ GIN1-

24

25 RIN1+ RIN1-

			34	PB7/DDC_SDA1*	NT68667UFG/C
			34
			35	PB6/DDC_SCL1*
			46	PB6/DDC_SCL1*
			46	PB5/DVI_SDA0*
			47	PB5/DVI_SDA0*
			47	PB4/DVI_SCL0*
			30	PB4/DVI_SCL0*
			30	PB3/ADC3/INTE1
			33	PB3/ADC3/INTE1
			33	PB2/ADC2/INTE0
0R05 1/16W			125	PB2/ADC2/INTE0
0R05 1/16W			125	PB1/ADC1

0R05 1/16W			126
0R05 1/16W			126	PB0/ADC0
			104	PB0/ADC0
			104	SPI_CE
			105	SPI_CE
			105	SPI_SO
			106	SPI_SO
			106	SPI_SI
			107	SPI_SI
			107	SPI_CLK
			108	SPI_CLK
			108	PD4
			48	PD4
			48	PD5
			29	PD5
			29	PD6
NC			49	PD6
NC			49	P35

NC			50
NC			50	P34

NC/100R 1/16W 5%31
NC/100R 1/16W 5%31				P31/TXD

100R 1/16W 5%			32
100R 1/16W 5%			32	P30/RXD
			1	P30/RXD
			1	RSTB
			127	RSTB
			127	OSCI
		R462		OSCI
		R462
		1M 1/16W 5%
			128	OSCO	GND DGND GND DGND/CGND DGND/CGND DGND/CGND PGND AGND AGND ADC GNDA
				OSCO


					44	3	109	64	78	101	18	12	9	27

C401

R414

U402

C411

0.22uF16V

NC

R440

R441

NC/0.22uF16V

SPI_CE

1

CE#

VDD

8

NC/4K7 1/16W 5%

NC/4K7 1/16W 5%

U403

SPI_SO

2

7

WP R409

SO HOLD#

SPI_CK

100R 1/16W 5%

3

6

8

1

WP#

SCK

VCC NC

4

5

SPI_SI

EE_WP

7

2

GND

SI

WC

NC

R413

MSCL

6

3

SCL

NC

10K 1/16W 5%

PM25LV020-100SCE

MSDA

5

4

SDA VSS

NC/M24C16

DVDD

+5V

CN406

BUZZER

1

2

3

NC/CONN

R476

NC

+5V

51 53 90 2

R475

NC/2K2 1/16W 5%

VCC3.3

DVDD DVDD DVDD DVDD

DGND/CGND

100

99

R477

NC/0R05 1/16W

DGND/CGND

98

DGND/CGND

97

DGND/CGND

LED_A

96

Q403

DGND/CGND

95

NC/2N3906S-RTK/PS

DGND/CGND

94

DGND/CGND

LED_LF_BLUE

93

LED_LF_BLUE 3

DGND/CGND

92

DGND/CGND

91

R478

DGND/CGND

88

T0M 3

NC/100R 1/10W 5%

RSGB1M/T0M

87

RSGB1P/T0P

T0P

3

86

RSCLKBM/T1M

T1M 3

0R05 1/16W

85

+5V

RSCLKBP/T1P

T1P

3

84

R466

RSBB3M/T2M

T2M 3

83

R465

RSBB3P/T2P

T2P

3

82

3K3 1/16W 5%

VCC3.3

RSBB2M/TCLK1M

TCLK1M 3

81

RSBB2P/TCLK1P

TCLK1P 3

80

RSBB1M/T3M

T3M 3

79

R467

NC/0R05 1/16W

RSBB1P/T3P

T3P

3

RSRA3M/T4M/RSRB0M

77

T4M 3

LED_C

Q401

76

2N3906S-RTK/PS

RSRA3P/T4P/RSRB0P

T4P

3

75

RSRA2M/T5M/GSGB0M

T5M 3

LED_ORANGE

74

RSRA2P/T5P/RSGB0P

T5P

3

LED_ORANGE 3

73

RSRA1M/T6M/RSGB0M

T6M 3

72

R468

RSRA1P/T6P/RSBB0P

T6P

3

71

100R 1/10W 5%

RSGA3M/TCLK2M

TCLK2M 3

70

RSGA3P/TCLK2P

TCLK2P 3

69

RSGA2M/T7M

T7M 3

1K 1/16W 1%

68

+5V

RSGA2P/T7P

T7P

3

R470

63

DGND/CGND

62

R469

RSGA1P/VCKI

2K2 1/16W 5%

VCC3.3

61

RSCLKAM/V7

60

RSCLKAP/V6

59

R471

NC/0R05 1/16W

RSBA3M/V5

58

RSBA3P/V4

57

RSBA2M/V3

LED_B

56

Q402

RSBA2P/V2

55

2N3906S-RTK/PS

RSBA1M/V1

54

RSBA1P/V0

LED_GRN/BLUE

LED_GRN/BLUE 3

89

DGND/CGND

110

R472

NC

111

100R 1/10W 5%

GPO2/AD0

112

GPO3/AD1

VSO

113

R418

120R 1/16W 5%

INT_VSO/GPO4

114

R417

100R 1/16W 5%

HSO

INT_HSO/GPO5

116

NC

117

adj_BACKLIGHT 4

PWMA*/GPO7

118

R404

100R 1/16W 5%

PWMB*/GPO8

Volume# 4

103VSO

PC7

102

HSO

PC6

124

R425

1K 1/16W 5%

POWER_KEY#

POWER_KEY# 3

PC5

on_BACKLIGHT

123

R446

on_BACKLIGHT_1 4

PC4/PWM1

122

PANEL_ID# 4

0R05 1/16W

PC3/PWM0

28

R402

NC

EE_WP

PC2

121

DDC_WP 2

PC1*

120

PC0*

HDCP_CTRL 2

40R421 NC/10K 1/16W 5% BUZZER

PA7/PWM9*

39

on_BACKLIGHT_5v

on_BACKLIGHT_5v _1 4

PA6/PWM8*

38

PA5/PWM7*

37

R447

NC/0R05 1/16W

PA4/PWM6*

LED_A

36

R406

NC/10K 1/16W 5%

PA3/PWM5

67

R419

22K 1/16W 5%

LED_C

PA1/PWM3

66

R420

10K 1/16W 5%

LED_B

PA2/PWM4

ADD R446,447

65

PPWR_ON# 3

PA0/PWM2

LG

20081030

T P V

( Top Victory Electronics Co . ,

Ltd. )

OEM MODEL

.VSC VG2427

Size

Custom

絬隔瓜絪腹

G3226-1-X-X-6-090317

TPV MODEL

<Doc>

Rev

1

Key Component

5. SCALER

PCB NAME

称爹

<称爹>

Date

Tuesday , March 17, 2009

Sheet

5 of 6

38

Image 38

ViewSonic VSXXXXX service manual 0402, NT68667UFG/C, ADD R446,447, 20K OHM 1/16W, FB403, 300OHM

Contents

ViewSonic VG2427wm Model No. VSXXXXX 23.6” Color TFT LCD DisplayService Manual VG2427wmSM Rev. 1a MarDisclaimer Revision HistoryCopyright TrademarksTABLE OF CONTENTS 1. Precautions and Safety Notices 1. Precautions and Safety NoticesIncorrect Methods 1.4 Handing and Placing MethodsCorrect Methods The panel is placed facedown on the lap. That may cause “Mura.” Place the monitor on a clean and soft foam padPlace the monitor on the lap, the panel surface must be upwards 2. Specification 3. Front Panel Function Control Description Do the following to adjust the display setting The following tips may help you optimize your displayControl Explanation Audio AdjustMain Menu Controls Manual Image Adjust displays the Manual Image Adjust menu Page 4. Circuit Description 4.1 Main BoardPin Assignment Page Page Page Page Pin # Pin DescriptionsName FunctionTypical Application 4.2 Power BoardIC901 LD7576 Function Block Diagram1 CT 2 COMP 3 CS 4 GND 5 OUT 6 VCC 7 NC 8 HV IC801 TA9687GN Pin DiagramFunctional Block Diagram I/O1 Pin DescriptionPin No NamesEnter into Burn/in mode 5. Adjustment Procedure5.1 White balance, Luminance adjustment Enter into the factory modeMax Brightness measurement 250 cd/m2 Test conditions 5.2 Firmware Upgrade ProcedureISP Board 5.2.1 Equipment neededVGA Cable Hardware Connect status 5.2.2 Update the NOVATEK’S firmwareLPT Cable You should jump the pin to “For Flash” at ISP Board Connect to theDouble click “Writer.exe” Page 5.3.3 Connect the DDC board as follow 5.3 DDC Key in Procedure5.3.2 Install software Connect to the PC LPTFor analog a. Double-click ，appear as follow Figs： b. ClickR3V080100001 12 codes, for example d. Unit appears the following Fig, writer completed6. Troubleshooting Flow Chart 7. Block Diagram 7.1 Main Board7.2 Power Board 20081225 8. Schematic Diagrams8.1 Main Board FB402 SOT223 Volume#TO252 ADD R711ADD R446,447 0402NT68667UFG/C 20K OHM 1/16Wbom change 8.2 Power BoardJUMP WIRE 2008-08-20R813 POWER XFMR7100K 1/10W 1% 100K 1/10W 5%4 Lin VOLUMEIC with Heat-sink90G6295-3 2 Rin3 POWER 4 BLUE 5 YELLOW KEY1 POWERPOWER KEY2 DOWNUpstream Hub side12V to Dow nstream9. PCB Layout Diagrams 9.1 Main BoardPage 9.2 Power Board Page 9.3 Key Board 9.3 USB Board Page 10. Exploded Diagram and Exploded Parts List 10.1 EPLBEZEL DescriptionPart Number Part Number 10.2 PPLDescription Location 11. Recommended Spare Parts ListTDRMNDDKWBVSPC Part NumberA85G0133101 A34G0936 KR 3B0100REAR COVER SHIELD-ACRST CHIPR 100 OHM +-5% 1/16W R105061G0402101 R109RST CHIPR 0402 470 OHM +-1% 1/16W R401061G0402470 0F R110CAP CER 0.22UF -20%-80% C302065G0402224 C401ZD401 DOME SWITCH 5PCSPOWER BOARD 093GWAFER CN801033G8021 2E IC903SCREW 0M1G8120 Q90G6263RST CHIPR 1M OHM +-5% 1/10W R840061G0603105 R841RST CHIPR R935061G1206101 OHM +-5% 1/4WC929 POWER BOARD PCBJUMPER WIRE 065G1206102VSC 23.6 HINGE ASSY CONNECTORQ37G0139013 Q40G 58170931ARST CHIPR 100 KOHM +-5% 1/16W R718061G0402104 R719Location 12. Different Parts ListDiversity of TDRMNDDYWBVSPC compared with TDRMNDDKWBVSPC Part NumberReader’s Response AssessmentReader’s basic dada