AOC HP-W19Q Schematic
19" LCD Color Monitor COMPAQ W19Q
Service
Service
Service
Horizontal Frequency
30- 83kHz
TABLE OF CONTENTS
Description Page Description Page
Table Of Contents.......……..............................…........1
Revision List.…........................................……......2
1. Monitor Specification..............................………........3
2. LCD Monitor Description…………………………….......4
3. Operation Instruction…………...............……...........5
3.1. General Instructions...........................…...........5
3.2. Control Button…………….…..............……...............5
3.3 Adjusting the Picture...........................…............6
4. Input/Output Specification............……………............8
4.1. Input Signal Connector............………….................8
4.2. Factory Preset Display Modes......…..................9
4.3. Power Supply Requirements...............................9
5. Panel Specification.....………………..................10
5.1. General Feature…….....………………..................10
5.2. Optical Characteristics………………………………11
6. Block Diagram……...................…………................12
6.1. Monitor Exploded View…………………....….......12
6.2 Software Flow Chart………………………….13
6.3. Electrical Block Diagram……………..….......15
7. Schematic……………......................................17
7.1 Main Board....……….......................................17
7.2 Power Board.….……....................................22
7.3 Key Board………………….……………………24
7.4 Audio Board………………….……………………25
8.PCB Layout..………….......................................26
8.1. Main Board………........................................26
8.2. Power Board….......................................29
8.3. Key Board………............….......................32
8.4. Audio Board………............….......................32
9. Maintainability……….......................................33
9.1. Equipments and Tools Requirement..............33
9.2. Trouble Shooting………..............................34
10. White-Balance, Luminance adjustment...40
11. BOM List….....................................................42
12. Different Parts List.........……….............................58
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC
EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
1
19" LCD Color Monitor COMPAQ W19Q
Revision List
Version Date Revision History TPV Model Name
A01 Nov.-24-06 First release
T96HGFDBW3CPAE
T96MGFDBW3CPAE
2
19" LCD Color Monitor COMPAQ W19Q
1. Monitor Specification
3
19" LCD Color Monitor COMPAQ W19Q
(
2. LCD Monitor Description
The LCD Monitor will contain main board, power board, key board and an audio board which house the flat panel
control logic, brightness control logic and DDC.
The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each
voltage.
Power Board
Include adapter and inverter)
AC-IN
110V-240
Monitor Block Diagram
CCFT Drive.
Main Board
Audio board
Key board
Flat Panel and
CCFL backlight
RS232 Connector
For white balance
adjustment in
factory mode
Video signal, DDC
HOST Computer
4
19" LCD Color Monitor COMPAQ W19Q
3. Operation Instructions
3.1 General Instructions
Press the power button to turn the monitor on or off. The other control buttons are located at front of the panel. By
changing these settings, the picture can be adjusted to your personal performance.
The power cord should be connected and insert to adaptor.
-
Connect the video cable from the monitor to the computer VGA card.
-
- Press the power button to turn on the monitor, the power indicator will light up to Green.
3.2 Control Buttons
5
19" LCD Color Monitor COMPAQ W19Q
3.3 Adjust the Picture
6
19" LCD Color Monitor COMPAQ W19Q
7
19" LCD Color Monitor COMPAQ W19Q
4. Input/Output Specification
4.1 Input Signal Connector
Pin Signal Pin Signal
1 Red Video 9 +5 V (from PC)
2 Green Video 10 Ground
3 Blue Video 11 Ground
4 Ground 12 DDC-serial Data
5 Detect Cable 13 Horizontal Sync
6 Red GND 14 Vertical Sync
7 Green GND 15 DDC-serial Clock
8 Blue GND
VGA connector layout
PIN 1
PIN 11
PIN 5
Pin Signal Pin Signal Pin Signal
1 TMDS Data 2- 9 TMDS Data 1- 17 TMDS Data 0 -
2 TMDS Data 2+ 10 TMDS Data 1+ 18 TMDS Data 0 +
3 TMD Data 2/4 Shield 11 TMD Data 1/3 Shield 19 TMD Data 0/53 Shield
4 TMDS Data 4 - 12 TMDS Data 3 - 20 TMDS Data 5 -
5 TMDS Data 4 + 13 TMDS Data 3 + 21 TMDS Data 5 +
6 DDC Clock 14 +5V Power 22 TMD Clock Shield
7 DDC Data 15 Ground (for +5V) 23 TMDS Clock +
8 N.C.
16 Hot Plug Detect 24 TMDS Clock -
8
19" LCD Color Monitor COMPAQ W19Q
4.2 Factory Preset Display Modes
4.3 Power Supply Requirements
Parameter Range
AC Line Voltage range 100 to 240V
AC Line Frequency range 47 to 63 Hz
Peak surge Current < 55 A MAX AT 220VAC and cold starting
Leakage Current < 3.5 mA
Power Consumption
≤37W
9
19" LCD Color Monitor COMPAQ W19Q
5. Panel Specification
5.1 General Feature
Mechanical Information
10
19" LCD Color Monitor COMPAQ W19Q
5.2 Optical Characteristics
Optical Specification
11
19" LCD Color Monitor COMPAQ W19Q
6.2 Software Flow Chart
1
Y
2
N
3
4
5
N
Y
6
N
7
8
Y
9
10
N
11
12
Y
13
N
N
Y
14
15
Y
N
16
Y
17
18
N
19
Y
13
19" LCD Color Monitor COMPAQ W19Q
REMARK:
1) MCU initialize.
2) Is the EEprom blank?
3) Program the EEprom by default values.
4) Get the PWM value of brightness from EEprom.
5) Is the power key pressed?
6) Clear all global flags.
7) Are the AUTO and SELECT keys pressed?
8) Enter factory mode.
9) Save the power key status into EEprom.
Turn on the LED and set it to green color.
Scalar initialize.
10) In standby mode?
11) Update the lifetime of back light.
12) Check the analog port, are they’re any signals coming?
13) Does the scalar send out an interrupt request?
14) Wake up the scalar.
15) Are there any signals coming from analog port?
16) Display "No connection Check Signal Cable" message. And go into standby mode after the message
disappear.
17) Program the scalar to be able to show the coming mode.
18) Process the OSD display.
19) Read the keyboard. Is the power key pressed?
14
19" LCD Color Monitor COMPAQ W19Q
6.3 Electrical Block Diagram
6.3.1 Scalar Board
EEPROM
SST25VF010A-
33-4C-SAE
(U402)
EPR_SDA
EPR_SCL
H sync
V sync
RGB
D-Sub
Connector
(CN202)
LCD Interface
(CN501)
Scalar IC GM5726-LF-AB (Include ADC, OSD, MCU)
(U401)
Crystal
14.31818MHz
(X301)
RGB
CLK+
CLK-
DVI
Connector
(CN201)
DB15_SDA
DB15_SCL
EEPROM
M24C02
(U202)
SDA
SCL
EEPROM
M24C02
(U201)
15
19" LCD Color Monitor COMPAQ W19Q
6.3.2 Inverter / Power Board
AC inlet filter
Start circuit R903; R904, R931
On/off control
Rectifier and
filter
Switching circuit
PWM control
IC&MOSFET
Start circuit
Transform
OVP circuit
Rectifier and
filter D904;
D905
Feedback
IC902;IC903
circuit
12V /5V
To main board
12V
PWM control IC
Push-pull
circuit
Dimming control
Feedback circuit
LC resonant
lamp
16
19" LCD Color Monitor COMPAQ W19Q
7. Schematic
7.1 Main Board
CN201
1
26
A_GND
T2-
2
T2+
3
SGND
4
T4-
5
T4+
6
DDCCLK
7
DDCDAT
8
A_VSYNC
9
T1-
10
T1+
11
SGND
12
T3-
13
T3+
14
+5V
15
GND
16
HPD
17
T0-
18
T0+
19
SGND
20
T5-
21
T5+
22
SGND
23
TC+
24
TC-
C1
A_RED
C2
A_GREEN
C3
A_BLUE
C4
A_HSYNC
C5
A_GND
25
A_GND
JACK
+5V
DVI_5V
1
2
D209
BAV70
D_DDC_5V
3
R212
4.7K 1/10W
U201
81
VCCA0
2
7
A1A2WP
3
6
SCL
4
5
GND
SDA
M24C02WMN6
GND
VGA_5V
2
C214
0.1uF/16V
U202
2
A1A2WP
3
4
GND
M24C02WMN6
1
+5V
2
D210
BAV70
2006/04/28 Write protect
3
by jc chen
R248
10K 1/16W
GND
81
VCCA0
7
6
SCL
5
SDA
2005/04/22 Write protect
R226
4.7K 1/16W
3
1
GND
R211
10K 1/16W
2006/04/28 Change to HDCP
R227
by jc chen
4.7K 1/16W
R259
33 1/10W
R260
33 1/10W
R213
4.7K 1/16W
SDA_IN_VGA
SCL_IN_VGA
GND
GND
Q201
3D
0.1uF/16V
2N7002E
C209
+5V
G
1005/08/13 Change to HDCP
DVI_5V
1
2
S
ZD207
UDZS5.6B
1005/08/13 Change to HDCP
ZD210
UDZS5.6B
RX2-IN
RX2+IN
SCL_IN_DVI
SDA_IN_DVI
RX1-IN
RX1+IN
R201 10K 1/16W
HOT_PLUG
RX0-IN
RX0+IN
RXC+IN
RXC-IN
2006/04/28 Change to HDCP
by jc chen
Q206
PMBS3904
R251
4.7K 1/16W
GND
R210 220 1/16W
ZD202
UDZS5.6B
GND
DVI_EDID_WP (3)
GND
HS_in
VS_IN
GND
ZD211
UDZS5.6B
ZD201
UDZS5.6B
GND
HDCP_RST (3)
R219
4.7K 1/10W
GND
DVI_HPD
1005/08/13 Change to HDCP
R215
33 1/16W
R216
33 1/16W
CN202
1716
DB15
1
11
6
2
12
7
3
13
8
4
14
9
5
15
10
ZD208
UDZS5.6B
Pins 6/7/8 are R/G/B
return lines resp.
R243 0 1/16W
FB204
430 OHM
2005.05.20 FOR NMV Issue
GND
3
D201
BAV99
1
2
SCL_IN_DVI
SDA_IN_DVI
UDZS5.6B
0522 ESD SOLUTION
VGA_5V
10K 1/16W
Rin
Gin
Bin
UDZS5.6B
GND
GND
R240
2.2K 1/16W
3
D202
BAV99
1
2
ZD203
GND
GND
R242
ZD212
C217
22pF
3
D203
BAV99
1
2
2
R256 33 1/16W
R257 33 1/16W
ZD204
UDZS5.6B
2005/04/22 C221,C222 FOR ESD
C222
+5V
1
2
D211
0.1uF/16V
BAV99
3
ZD213
NC
ZD209
UDZS5.6B
GND
(8 mil)
R241
C218
22pF
2.2K 1/16W
3
D204
BAV99
2
1
GND
C221
1
GND
0.1uF/16V
3
0522 ESD SOLUTION
2006/04/28 modified
by jc chen
ZD214
NC
R237 220 1/16W
3
3
D205
BAV99
1
2
DDC_SCL_DVI (3)
DDC_SDA_DVI (3)
0.1uF/16V
+5V
2
D212
GND
BAV99
ZD215
NC
VGA_PLUG
R238 220 1/16W
R239 220 1/16W
R202 10 1/16W
R203 10 1/16W
R204 10 1/16W
R205 10 1/16W
R206 10 1/16W
R207 10 1/16W
3
D206
D207
BAV99
BAV99
1
1
2
SCL_IN_VGA
SDA_IN_VGA
2005/09/13 ADD C228-C233 33P FOR EMI
+5V
C219
1
2
D213
BAV99
3
R234
R233
75 1/16W
75 1/16W
AGND
R208 10 1/16W
R209 10 1/16W
3
D208
BAV99
2
C228
33pF
GND
R235
75 1/16W
1
FB201
60 OHM
FB202
60 OHM
FB203
60 OHM
0.001uF
C201
+5V
C230
33pF
GND
R220 75 1/16W
R222 100 1/16W
R223 75 1/16W
R224 100 1/16W
R229 75 1/16W
R230 100 1/16W
HS (3)
RX2- (3)
RX2+ (3)
RX1- (3)
RX1+ (3)
RX0- (3)
RX0+ (3)
RXC+ (3)
RXC- (3)
2006/04/28 Change to HDCP
by jc chen
R249 33 1/10W
R250 33 1/10W
(10 mil,
75-ohm terminating resistor
very close to the VGA
conn.
AGND
GND
VS (3)
DVI_HPD
R217 22K 1/16W
VGA_PLUG
R218 33K 1/16W
DDC_SCL_VGA (3)
DDC_SDA_VGA (3)
┰キ︽絬
)
0.047uF
C210
C211
C212
C213
C215
C216
0.047uF
0.047uF
0.047uF
0.047uF
0.047uF
RED+ (3)
RED- (3)
GREEN+ (3)
GREEN- (3)
BLUE+ (3)
BLUE- (3)
+3.3V_VDD
R214
10K 1/16W
CABLE_DET (3)
C220
0.1uF/16V
GND
17
19" LCD Color Monitor COMPAQ W19Q
4/13 Add R332,R333 for reverse
ver.BC brown out detect
+3.3V_VDD
L301
120 OHM
L303
120 OHM
L306
120 OHM
OPTIONAL
FOR
DEBUGGING
PURPOSES
ONLY
CN301
CONN
G-PROBE
7/26 By Sunny
C331
0.22uF
U403
1
A0
VCC
2
A1
WP
3
A2
SCK
4 5
VSS SI
M24C16-MN6T
GND
Boot-Strap Configuration:
ATMEL_EN
(PWM0,Pin50)
UART_PIN_SEL
(Pin119)
(PWM1)
V_EDID_ATMEL
(Pin59)
(SPI_CSn)
GPO_0
(Pin51)
C301
C316
C325
22uF/50V
1
2
3
22uF/50V
22uF/50V
GND
8
7
6
+
GND
+
GND
3.3V_LAVDD
+
C326
0.1uF/16V
GND
UDART_DO
UDART_DI
+3.3V_VDD
R306
4.7K 1/16W
4.7K 1/16W
10 KOhm
ATMELSPI ROM
(R304)
UART on GPO
(R305)
ATMELSPI ROM
(R303)
Ext. ROM JTAG Off
(R315)
C303
0.1uF/16V
C304
0.1uF/16V
C302
0.1uF/16V
Close to respective power Pins
3.3V_AVDD
C318
R307
C317
0.1uF/16V
4.7K 1/16W
0.1uF/16V
R308
0522
BOM
LOSE
R309 100 1/16W
R310 100 1/16W
R311 100 1/16W
Close to respective power Pins
L305
120 OHM
Open
Standard SPI ROM
(R324)
(R324)
UART on DDC
(R325)
Standard SPI ROM
(R323)
0.1uF/16V
3.3V_PVDD
/WP
NVRAM_SCL
NVRAM_SDA
C306
C305
0.1uF/16V
+
C324
10uF/50V
GND
DefaultName
Open
Open
Open
3.3V_DVDD
R301 10 1/16W
C307
0.1uF/16V
3.3V_DDC
1
C308
0.1uF/16V
3
+1.8V_VDD
L302
120 OHM
L304
120 OHM
C319
0522 ESD SOLUTION
+5V
C333
0.1uF/16V
3
2
GND
1
C329
NC
7/26 By Sunny
GND
2
U302
VCC
RSTN
GND
G691L400T73
1005/08/13 Change to HDCP
2006/04/28 modified
by jc chen
BRIGHTNESS(6)
DVI_EDID_WP(2)
3.3V_DVDD
R321
NC
10K 1/16W
GND
2005/09/08 new add Pull-low to Gnd for PMC AND SST
GND
22uF/50V
GND
VOLUME(4)
ROM_WP#
+
C309
22uF/50V
+
ZD301
UDZS5.6B
0.1uF/16V
R342
NC
4.7K 1/16W
C320
3.3V_DVDD
R324
GNDR341
0.1uF/16V
GND
1
2
3
4 5
C310
C311
0.1uF/16V
C321
C322
0.1uF/16V
0.1uF/16V
2006/04/28 modified
by jc chen
R329
4.7K 1/10W
RED+(2)
RED-(2)
GREEN+(2)
GREEN-(2)
BLUE+(2)
BLUE-(2)
R333
NC
DDC_SCL_VGA(2)
DDC_SDA_VGA(2)
DDC_SCL_DVI(2)
DDC_SDA_DVI(2)
RX2+(2)
RX1+(2)
RX1-(2)
RX0+(2)
RX0-(2)
RXC+(2)
R315
4.7K 1/16W
NC
R325
GND
GND
U402
8
CE#
VDD
7
SO
HOLD#
6
WP#
SCK
VSS SI
SST25VF010-20-4C-SA
0.1uF/16V
1.8V_DVDD
0.1uF/16V
HS(2)
VS(2)
RX2-(2)
RXC-(2)
R303
ROM_SCLK
ROM_SDI
C312
C323
R332
NC
NC
GND
3.3V_DVDD
R304
R323
4.7K 1/16W
1.8V_AVDD
C313
0.1uF/16V
3.3V_PVDD
3.3V_PVDD
5/18 by Sunny
+5V
NC
2006/04/28 modified
by jc chen
R343
4.7K 1/10W
C332
0.1uF/16V
C314
0.1uF/16V
C327 33pF
X301
14.318MHz
C328 47pF
08/13 Add R332,R333 for
reverse ver.BC brown out
detect
R305
4.7K 1/16W
2005.08.13 UDART D0э DDC_SEL
+3.3V_VDD
GND
3.3V_AVDD
R302 249 1/16W
C330
0.1uF/16V
GND
UDART_DO
UDART_DI
R338 NC
AUDIO_STDBY(4)
R318
4.7K 1/16W
R339
0 1/10W
R340
0 1/10W
2006/04/28 modified
by jc chen
3.3V_DDC
4.7K 1/16W
108
109
100
RESETn
111
GND
119
R316
R317
4.7K 1/16W
GND
GM5726-LF-AB
MQFP-128
U401
99
96
97
93
94
89
90
63
64
65
66
67
72
73
75
76
80
81
83
84
69
52
50
58
57
56
51
59
60
61
62
3.3V_PVDD
3.3V_AVDD
110
AVDD_RPLL_33
XTAL
TCLK
RED+
REDGREEN+
GREENBLUE+
BLUE-
HSYNC
VSYNC
RESETn
RVDD_33
DDC_SCL_VGA
DDC_SDA_VGA
HOST_SCL
HOST_SDA
RX2+
RX2RX1+
RX1RX0+
RX0RXC+
RXC-
REXT
CRVSS
PWM1 / GPO_5
PWM0 / GP0_4
GPO_3
GPO_2
GPO_1
GPO_0
SPI_CSn
SPI_CLK
SPI_DI
SPI_DO
3.3V_LAVDD
128
10192827422547
AVDD_DVI_33
AVDD_DVI_33
AVDD_ADC_33
AVDD_ADC_33
AVSS_ADC
AVSS_ADC
AVSS_DVI
AVSS_DVI
AVSS_DVI
AVSS_DVI
9598102
687177
79
1.8V_DVDD
3.3V_DVDD
91
116
53
RVDD_33
RVDD_33
VDD_OUT_33
VDD_OUT_33
VDD_OUT_33
AVDD_BIAS_33
LBADC_VDD_33
1.8V_AVDD
104
106
1755118
87
867870
CVDD_18
CVDD_18
CVDD_18
CVDD_18
AVDD_DVI_18
AVDD_DVI_18
AVDD_DVI_18
VDD_RPLL_18
AVDD_ADC_18
GPIO_8
GPIO_9
GPIO_10
GPIO_11
GPIO_12
GPIO_13
GPIO_14
120
121
122
123
124
125
126
NVRAM_SCL
NVRAM_SDA
/WP
R331 0 1/16W
POWER_ON (4)
LED_O (4)
LED_G (4)
ROM_WP#
Move ROM_WP# function to GPIO12
3
E_R0N
4
E_R0P
5
E_R1N
6
E_R1P
LVDS_E8
7
E_CH3_P
E_CH3_N
E_CH2_P
E_CH2_N
E_CH1_P
E_CH1_N
E_CH0_P
E_CH0_N
E_CLK_P
E_CLK_N
O_CH3_P
O_CH3_N
O_CH2_P
O_CH2_N
O_CH1_P
O_CH1_N
O_CH0_P
O_CH0_N
O_CLK_P
O_CLK_N
E_B0N
E_B0P
E_B1N
E_B1P
E_B2N
E_B2P
O_R0N
O_R0P
O_R1N
O_R1P
O_B0N
O_B0P
O_B1N
O_B1P
O_B2N
O_B2P
PPWR
PBIAS
GPO_6
LVDS_E9
8
LVDS_E4
11
LVDS_E5
12
LVDS_E2
13
14
LVDS_E3
LVDS_E0
15
LVDS_E1
16
LVDS_E6
9
LVDS_E7
10
19
20
21
22
23
24
27
28
29
30
31
32
35
36
37
38
39
40
33
34
41
42
43
44
45
46
127
49
105
LVDS_O8
LVDS_O9
LVDS_O4
LVDS_O5
LVDS_O2
LVDS_O3
LVDS_O0
LVDS_O1
LVDS_O6
LVDS_O7
GND
LVDS_E[0..9]
LVDS_O[0..9]
R336
NC
2006/04/28 change to
HDCP by jc chen
PPWR
PBIAS
Gm2621 ver.BC Pin 41:
high : Resetn
Low : internal
POR(power on reset)
LVDS_E[0..9] (5)
08/13 ADD R336 ,R337 for
gm2621 ver.BC
LVDS_O[0..9] (5)
3.3V_DVDD
R337
NC
HDCP_RST
(2)
PPWR (6)
PBIAS (6)
Remove ROM_WP# function to GPIO12
2006/04/28 modified
by jc chen
08/13 ADD
R334,R335
R334 0 1/10W
R335 0 1/10W
GND
gm5726
LBADC1 (4)
LBADC2 (4)
CABLE_DET (2)
1
26Tuesday, June 13, 2006
of
115
LBADC_IN1
114
LBADC_IN2
113
LBADC_IN3
112
LBADC_VSS
AVSS_DVI
AVSS_ADC
VSS_RPLL
AVSS_BIAS
VSS_OUT
VSS_OUT
AVSS_ADC
107
CRVSS
CRVSS
CRVSS
CRVSS
85
103
12648
185488
117
GND
Title
Size Document Number Rev
C
Date: Sheet
18
19" LCD Color Monitor COMPAQ W19Q
+5V
R401
1K 1/16W
R403 150K 1/16W
R405
LBADC1(3)
LBADC2(3)
47K 1/16W
LED_G(3)
KEY_AUTO
KEY_RIGHT
KEY_ONOFF
2006/04/28 modified
by jc chen
VOLUME(3)
Q401
PMBS3904
GND
LED_G
R411 220 1/16W
R413 220 1/16W
R415 220 1/16W
R409 47K 1/16W
SPKR_L+
R416
10K 1/10W
GND
C404
1000pF
C401
0.1uF/16V
GND
+3.3V_VDD
1
C405
1000pF
GND
R428
0 1/16W
+3.3V_VDD
VOL
C402
1uF/25V
R407
100 1/16W
32
Q403
PMBS3904
LED_GREEN
GND
R417
10K 1/10W
VOL
SPKR_L+
LINE-IN-L
LINE-IN-L
C411
1000pF
R419 30K 1/10W
R420 22K 1/10W
R421 22K 1/10W
R422 30K 1/10W
1 2
3 4
5 6
7 8
9 10
11 12
13 14
CONN
CN402
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
CON16A
CN401
GND
GND
LED_ORANGE
LINE-IN-R
STANDBY
MUTE
SPKR_R+
LINE-IN-R
C412
1000pF
GND
120 OHM
L402
+3.3V_VDD
Q404
PMBS3904
C406
1000pF
GND
R429
0 1/16W
R418
10K 1/16W
+12V
32
GND
KEY_MENU
KEY_RIGHT
KEY_AUTO
KEY_LEFT
+5V
L401
120 OHM
R408
100 1/16W
1
R410 47K 1/16W
R412 220 1/16W
R414 220 1/16W
C407
1000pF
SPKR_R+
+3.3V_VDD
GND
C408
0.1uF/16V
R426 10K 1/16W
R425 100 1/16W
C410
NC
GND
LED_O
KEY_MENU
KEY_LEFT
R427
100 1/16W
C409
NC
LED_O (3)
+5V
R402
3
Q402
GND
4.7K 1/16W
47K 1/16W
R406
AUDIO_STDBY (3)
1
D401
2
BAV99
PMBS3904
POWER_ON(3)
GND
ZD401
UDZS5.6B
C413
0.1uF/16V
GND
GND
C414
0.1uF/16V
GND
R424 4.7K 1/16W
ZD402
UDZS5.6B
KEY_ONOFF
Title
Size Document Number Rev
B
Date: Sheet
KEYPAD
36Tuesday, May 02, 2006
of
1
19
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