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HP
HP_LCD_W1907&WF1907_SM061031V00
Service
HP WF1907 & W1907 June.19th-2006
Service Manual
01. 02. 03. 04. 05.
Table of Contents Power Board Operation Theory----------------------------------------------------------------01 Inverter Circuit--------------------------------------------------------------------------------------02 Interface Operation--------------------------------------------------------------------------------03 Troubleshooting------------------------------------------------------------------------------------10 Schematic-------------------------------------------------------------------------------------------24
Safety Notice
Any person attempting to service this chassis must familarize with the chassis and be aware of the necessary safety precautions to be used when serving electronic equipment containing high voltage.
Published by LITE-ON Service
Printed in Taiwan
© All rights reserved
Subject to modification 31th Oct-2006
HP W1907& WF1907 Service Manual
1. Power Board Operation Theory
1.1 Line filter consists of C801, T801, C802, C803, C804, C808, C809, C815, C819, C820, C825. It eliminates high frequency interference to meet EMI's requirement. 1.2 Rec & Filter Bridge diode D812, D813, D814, D815 converts AC source into pulsed DC. This pulsed DC is smoothed and filtered by C805. R802 is an NTC (negative thermal coefficient ) resistor, used to reduce inrush current to be within safe range. 1.3 Power transformer : T802 converts energy for square wave from power source C805 to secondary side to generate +5V, +12V and +22V. 1.4 Output : The square wave from T802 is rectified by D808 D809, D810, then filtered by C817, C818, C824, C823, C830, C833, C822 to generate +22.5V and +12V, +5V respectively. 1.5 Driver : Q803 drive T802 from PWM control of I801 for power converted. 1.6 FB : Negative feedback CKT consists of photo coupler I802 and adjustable regulator I803. It can maintain output voltages +22.5V and +12V, +5V at a stable level. 1.7 PWM : 1.7.1 1.7.2 Start : When power is turned on. C807 is charged a 11V and a starting current above 40uA to pin 1 of I801. I801 starts to oscillate and outputs a pulse train through pin 6 to drive Q803. OPP : When Q803 turns on, C805 supplies a linearly increasing triangle current through the primary inductance of T802 to the driver Q803, once the peak value of this current multiplied by R811 exceeds 0.52V, pulse train will be turn off immediately to protect Q803, T802 from being burned out. Regulation : If output voltage +22V goes up, the R terminal of I803 gets more bias, accordingly photo transistor and photo diode flows more current. The voltage of pin 2 goes up too, making the pulse width of pin 6 to become narrower. So the output voltage +22V will be pulled down to a stable value.
1.7.3
1.7.4 OVP : If +22.5V goes up too much, the induced voltage on pin 4 of T802 becomes large also. Suppose that it is over 20V. The pulse train at pin 6 goes down to zero, shutting Q803 off immediately. 1.7.5 SCP : If output terminal is short to ground, photo transistor does not conduct, hence I802 does not conduct either. Then oscillation of I801 is stop, shutting Q803 off immediately.
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2. Inverter Circuit
This unit operates on an output voltage of 22V from power source. 2.1 VDD: R105 get a +5VDC for I101 power supply. 2.2 Control IC: I101 (OZ9938) 2.2.1 2.2.2 2.2.3 2.2.4 2.2.5 Enable : When pin 1 of I101 is over 2V, I101 works. If it is under 1V, I101 turns off. OSC: When I101 enabled, C104/R118/R107 (pin 13 of I101) determine the operating frequency. SST: C106 (pin 12 of I101) provides soft start function. Ignition: IC provides higher operating frequency internally for more striking voltage until regulation of feedback of lamp current. And provide 2 sec striking time. Dimming control: The external PWM voltage of R136/C111 control the duty pulse of burst-mode to drive and perform a wide dimming control for the CCFL. The burst-mode frequency is determined by scalor IC. Regulation: Pin 5 of I101 provide regulation of the CCFL current from feedback. The non-inverting reference is at 1.25V nominal. Protection: Open-lamp protection in the ignition period is provided through pin 6 of I101. Removal of the CCFL during normal operation will trigger IC to turns on and shuts off the inverter. This is latch function. Output drivers: The configuration prevents any shoot-through issue associated with bridge-type power conversion applications. Adjusting the overlap conduction between Q104, Q105, the CCFL current regulation is achieved.
2.2.6 2.2.7
2.2.8
2.3 Half-bridge switching/Transformer: Q104, Q105, C122, C123, C134 compose half-bridge switching to convert DC into AC for driver the CCFL. 2.4 Detection: C112, C114, C115, C116, C118, C119, R126, R116, R115, R117, R119, R121, R122, R125 detect the output voltage and ensure a rated voltage by pin 6 of I101 ensure not a open-lamp. 2.5 Feedback: D116, D117, D120, D121, R111, R130 sense the lamp current for negative feedback and regulation.
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3. Interface Operation
3.1 Top (Circuit diagrams sheet 2 of 8) This page is function block. (1) Power. (2) VGA & DDC interface. (3) DVI & DDC interface. (4) Scaler Gm5726H (Gm5766H). (5) Key & panel interface. (6) Audio. 3.2 Power (Circuit diagrams sheet 3 of 8) 3.2.1 P301 connector A 5V power supply for LCD module, also it is main power of interface board. A VDD (+5V) power supply for audio AMP. It is generated from the P301 connector. And adjust back light of LCD module from I306 sclaer Gm5726H (Gm5766H) control. I302 : 3-terminal regulator A 3.3V power supply for I306 scaler IC Gm5726H (Gm5766H) and I308 EEPROM / I309 SPI flash ROM, it is generated from the 5V source. I303 : 3-terminal regulator A 1.8V power supply for I306 scaler IC Gm5726H (Gm5766H), it is generated from the 3.3V source (I302). Q302, I301 : ON/OFF control for LCD module power ON/OFF control (PANELVCC_EN) is performed for power ON/OFF and also for the power saving sequence. It is support 5V to LCD module power. The PANELVCC_EN signal is generated from I306 scaler IC Gm5726H (Gm5766H). R305 : ON/OFF control for LCD module back light power ON/OFF control (BKLT_EN) is performed for black light power ON/OFF and also for the power saving sequence. The BKLT_EN signal is generated from I306 scaler IC Gm5726H (Gm5766H).
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3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
Q301, R301, R302, R304 : Adjust back light luminance of LCD module It is adjusted back light luminance control (BKLT_ADJ) is performed for the back light luminance. The BKLT_ADJ signal is generated from I306 scaler IC Gm5726H (Gm5766H).
3.3 VGA & DDC interface (Circuit diagrams sheet 4 of 8) This sheet has RGB analog video and H/V sync signals input from VGA connector. The RGB analog video signals input through AC-coupled, analog video signal is used to clamp the black level at 0V. And H/V sync to sclaer. Support EDID plug & play function for analog video. It is to support VESA DDC/CI interface for analog video. 3.3.1 P302 connector The RGB analog video and H/V sync input signals to I306 scaler Gm5726H (Gm5766H). The VESA DDC/CI function is through I2C bus to I306 scaler Gm5726H (Gm5766H). I304 : EDID EEPROM (24LC02B) The I304 is support EDID information of the VESA standard for VGA interface, and support plug and play for the PC host.
3.3.2
3.4 DVI & DDC interface (Circuit diagrams sheet 5 of 8) The digital video signals (TMDS) input from P303 DVI-D connector. The digital video signal is TMDS for DVI V1.0 standard. And support EDID plug & play function for digital video. It is to support VESA DDC/CI interface, and support HDCP function. 3.4.1 P303 connector P303 is DVI-D connector for DDWG standard, it have digital video signals (TMDS) to I306 scaler Gm5726H (Gm5766H). The VESA DDC/CI function is through I2C bus to I306 Gm5726H (Gm5766H). And support HDCP function is also through I2C bus to I306 Gm5726H (Gm5766H). I305 : EDID EEPROM (24LC02B) The I305 is support EDID information of the VESA standard for DVI interface, and support plug and play for the PC host.
3.4.2
3.5 Scaler Gm5726H (Gm5766H) (Circuit diagrams sheet 6 of 8) The I306 Gm5726H (Gm5766H) is all-in-one LCD monitor controller. The Gm5726H (Gm5766H) leverages Genesis patented advanced image-processing technology as well as a proven integrated ADC/PLL and an Ultra-Reliable DVI compliant receiver to provide excellent image quality. Gm5726H (Gm5766H) also integrates HDCP function, a micro-controller, an OSD controller, and dual LVDS. The RGB analog video signal from video input circuit enter to incorporated A/D converted block (ADC) into the digital data for analog video signal. The TMDS digital signals input (with HDCP) entered from the DVI-D connector is converted into the digital data. Based on this conversion, this device performs interpolation during pixel extension. These interpolation digital data are transformed to LVDS signal. The I306 source voltage is 3.3V and 1.8V, the device clock source frequency is 14.318 MHz. And support DDC/CI interface of VESA and function key operation.
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3.5.1
I308 EEPROM (24LC16B) The control data and parameter, and OSD related setting, and other service data, to be stored in I308. The contents of which are updated as required. I309 SPI Flash ROM The firmware program running from I309 external SPI flash ROM, contains firmware code and data for all firmware function. The device is 2Mbits of flash ROM. I307 Microprocessor Supervisory Circuit The function of this device is to assert a reset to I306 scaler Gm5726H (Gm5766H), when either the power supply dropped down. X301 14.318MHz It generated reference clock input for I306 scaler. ISP and DDC/CI function The DDC/CI is VESA standard for the host PC system, it can through I2C bus to control LCD monitor. Enter I306 pin64 DDC_SCL_A and pin65 DDC_SDA_A of the VGA port. Enter I306 pin66 DDC_SCL_D pin67 DDC_SDA_D of the DVI-D port. It use ISP function when change new firmware to I309 SPI flash ROM, it used I2C bus from VGA or DVI-D port through I306 Gm5726H (Gm5766H) to I309 SPI flash ROM. The power save sequence function First I306 pin49 (BKLT_EN) set Low to disable LCD module back light power, delay of some time, then I306 pin127 (PANELVCC_EN) set Low to disable LCD module power, then I306 enter to power down mode.
3.5.2
3.5.3
3.5.4 3.5.5
3.5.6
3.6 Key & Panel interface (Circuit diagrams sheet 7of 8) 3.6.1 3.6.2 P306 connector It is LVDS bus, it is from I306 scaler to LCD panel module. The P306 output voltage is 5V. P307 and P308 connector The P307/P308 has support keypad function. Control is give effect to for the push switch to be used when the user changes the parameters, in order to modify the respective setting values. Whether the switch has been pressed is identified with the switch input level change of I306 Gm5726H (Gm5766H). Related ports of I306 based on Table 1. Each parameter is stored in the I308 EEPROM, the contents of which are updated as required. The P307 have LED Blue and Amber light, the LED Blue signal from I306 pin126, and the LED Amber signal from I306 pin125. Table 1 Related ports of I306 Function Remarks Soft power switch input Power key Enter OSD switch input Enter OSD menu Switch input Up key or Viewing model selection Switch input Down key or Volume control of audio function Selection switch input Select key or Auto adjust key
Pin No. Pin 113 Pin 115 Pin 114 Pin 115 Pin 114
I/O I I I I I
Signal name KEY_POWER KEY_MENU KEY_UP KEY_DOWN KEY_SELECT
3.7 Audio (Circuit diagrams sheet 8of 8) 3.7.1 P309 connector
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The P309 is audio signal input from the audio source. 3.7.2 3.7.3 3.7.4 P310 connector The P310 is audio output to speaker and support 2W x 2 speakers. I310 TPA6021A4 The I310 is 2x2W stereo audio amplifier, it is an integrated class-AB dual output amplifier. Q309 : Power down and mute control for Audio ON/OFF control (AUDIO_EN) is performed for standby mode and mute function. It is support 5V to audio IC power. The AUDIO_EN signal is generated from I306 scaler Gm5726H (Gm5766H). R394, Q310: Volume control for Audio Volume control (volume) is performed for audio output signal power. The volume signal is generated from I306 scaler Gm5726H (Gm5766H).
3.7.5
3.8 Others 3.8.1 Detection of POWER ON status The I306 Gm5726H (Gm5766H) identified the ON status of two modes for the power supplies. The identification is made when the power supply is turn off. For example, if the power supply is turn off with the POWER key switch, the POWER key switch must be turn on when active the power supply again. If the power supply turned off by the pulling out the power cord, then this power supply can to be turned on by connecting the power cord, without pressing the POWER key switch. Display mode identification 3.8.2.1 Display mode identification The display mode of input signal is identified based on Table 2. When the mode has been identified through the measurement of horizontal and vertical frequencies, the total number of lines is determined with a formula of "Horizontal frequency / Vertical frequency = Total number of number of lines". Final identification can be made by examining the coincidence of the obtained figure with the number of lines for the mode identified from the frequency. The Distinction Hsync and Vsync of each mode is shown in Table 3. When the detected frequency if the sync signal has changed, the total number of lines should be counted even through it is range identified frequency in the same mode. 3.8.2.2 Out of range This out of range mode is assumed when the frequency out of the horizontal / vertical signal is as specified below. Vertical frequency : 50 ~ 76 Hz. Horizontal frequency : 24 ~ 83KHz. 3.8.2.3 Power save mode The power save mode is assumed when the horizontal / vertical signals are as specified below. If there is no horizontal sync signal input. If there is no vertical sync signal input. If the horizontal sync signal is outside the measuring range of I306 Gm5726H (Gm5766H). If the vertical sync signal is outside the measuring range of I306 Gm5726H
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3.8.2
(Gm5766H).
Table 2 video mode Mode 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Resolution 640x480 (59.94Hz) 640x480 (72Hz) 640x480 (75Hz) 720x400 (70Hz) 800x600 (60Hz) 800x600 (72Hz) 800x600 (75Hz) 832x624 (74.55Hz) 1024x768 (60Hz) 1024x768 (70Hz) 1024x768 (75Hz) 1152x870 (75Hz) 1152x900 (76Hz) 1280x1024 (60Hz) 1280x1024 (75Hz) H-Freq (KHz) 31.469 37.861 37.5 31.469 37.879 48.077 46.875 49.722 48.363 56.476 60.023 68.68 71.71 63.981 79.976 Band Width (MHz) 25.175 31.5 31.5 28.322 40 50 49.5 57.284 65 75 78.75 100 105.561 108 135 Polarity H V
+ + + +/+ + +
+ + + + +/+ + +
Indication resolution 720 x 400 640 x 480 640 x 480 640 x 480 800 x 600 800 x 600 800 x 600 832 x 624 1024 x 768 1024 x 768 1024 x 768 1152 x 870 1152 x 900 1280 x 1024 1280 x 1024
Table 3 the Hsync, Vsync distinction Distinction Hsync Distinction Vsync 30.5KHzfH32.5KHz 30.5KHzfH32.5KHz 36.9KHzfH38.9KHz 36.5KHzfH38.5KHz 36.9KHzfH38.9KHz 47.1KHzfH49.1KHz 45.9KHzfH47.9KHz 48.7KHzfH50.7KHz 47.4KHzfH49.4KHz 55.5KHzfH57.5KHz 59KHzfH61KHz 67.7KHzfH69.7KHz 70.7KHzfH72.7KHz 62.9KHzfH64.9KHz 79KHzfH81KHz 69HzfV71Hz 59HzfV61Hz 71.8HzfV73.8Hz 74HzfV76Hz 59.3HzfV61.3Hz 71.2HzfV73.2Hz 74HzfV76Hz 73.5HzfV75.5Hz 59HzfV61Hz 69.1HzfV70.1Hz 74HzfV76Hz 74HzfV76Hz 75HzfV77Hz 59HzfV61Hz 74HzfV76Hz
The fixed mode 4 1 2 3 5 6 7 8 9 10 11 12 13 14 15
3.8.3
Power ON sequence When the POWER key switch is pressed, the POWER key switch signal is turned "H". When this "H" potential is detected, the CPU begins to establish the respective power
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supplies according to the sequence show below.
Power Key 296ms LED Blue 516ms
PANELVCC_E N
BKLT_EN
825ms
AUDIO_EN
3.68s
3.8.4
Power OFF sequence When the POWER key switch is pressed, while the power supply is ON, the POWER key switch signal is turned "H". When this "H" potential is detected, the CPU begins to turn off the respective power supplies according to sequence show below.
Power Key 140ms LED Blue 460ms
PANELVCC_E N
157ms BKLT_EN 140ms
AUDIO_EN
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3.8.5
List of I/O Pin Assignments of the I306 Port GPIO14 GPIO13 Signal Name LED_B LED_A Initial Setting H L L H H H H L H H L L L H H H H L L H H H H Function ON/OFF LCD monitor LED Blue enable when is H LED amber enable when is H OSD up/plus enable when is 2.46V OSD enter enable when is 2.46V OSD select/exit enable when is 2.0V OSD down/minus enable when is 2.0V DVI HPD enable when is L EEPROM clock signal of IIC bus EEPROM data signal of IIC bus Backlight brightness control DDC EEPROM write protection when is L Audio enable when is H Audio volume VGA cable connected when is L DVI cable connected when is L UART interface data OUT UART interface data IN Panel power enable when is H Back light power enable when is H DDC/CI interface for VGA DDC/CI interface for VGA DDC/CI interface for DVI DDC/CI interface for DVI
Pin No. 113 126 125 114 115 114 115 86 122 123 50 124 51 56 121 120 58 57 127 49 64 65 66 67
LBADC_IN3 PWR_KEYn
LBADC_IN2 KEY_UPn LBADC_IN1 KEY_MENUn LBADC_IN2 KEY_SELECTn LBADC_IN1 KEY_DOWNn GPIO31 GPIO10 GPIO11 GPO4 GPIO12 GPO0 GPO1 GPIO9 GPIO8 GPO3 GPO2 PPWR PBIAS GPIO16 GPIO17 GPIO18 GPIO19 HDCP_HPDn SCL SDA BKLT_ADJ DDC_WPn AUDIO_EN VOLUME VGA_DETn DVI_DETn UART_DO UART_DI PANELVCC_EN BKLT_EN DDC_SCL_VGA DDC_SDA_VGA DDC_SCL_DVI DDC_SDA_DVI
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4. Troubleshooting
4.1 No.display of screen (Screen is black, color of LED is amber)
Does OSD display when you push MENU button.
When a signal isn't being input, it is indicated with "VIDEO INPUT". it is indicated with "OUT OF RANGE" at the time of the frequency that it can't be distinguished.
No Yes
Proceed "No OSD display" section.
Check if the sync signal from computer is output and if the video cable is connected normally. (VGA or DVI)
NG OK
Input the sync signal of computer, or change the cable. (VGA or DVI)
Proceed "checking the resolution change IC movement" section.
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4.2 Nothing display on screen (screen is black, color of LED is blue
Is backlight light up?
OK
NG
Refer "Checking the backlight unit" section"
Does computer output RGB video signals? (VGA or DVI)
Check the video cable for failure. Check the host for output signal with all black only.
OK
NG
1) Change pattern of video signal output on the host. 2) Reconnect the video cable. 3) Change the video cable. (VGA or DVI)
Check OSD menu is display on screen when you push the "MENU" key.
OK
NG
Check if the LCD module signal cable is connected between the I nterface Board and LCD module.
Failure Point OK Proceed "Abnormal sreen" dection" NG The LVDS cable is disconnected.
Next Page
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Continue
Check the 3.3V power are supplied on I302 pin 2, 4.
NG
Check if the voltage on I302 pin 3 that is power DC at 5V. Failure Point NG 1) Printed wire broke between P301 pin 5, 6 and I302. 2) FB301, FB302 are open. 3) Check power board.
OK
OK
Failure Point I302 is failure.
Check the 1.8V power are supplied on I303 pin 2, 4.
NG
Check if the voltage on I303 pin 3 that is power DC at 3.3V from the I302.
Failure Point OK OK NG 1) Printed wire broke between I302 pin 2, 4 and I303 pin 3. 2) I302 is failure.
Failure Point I303 is failure.
Next Page
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Continue
Check the 5V power are supplied on P306 pin 1, 2, 3 (to the LCD panel)
NG
Check if the Voltage on I301 pin 2 that is DC power at 5V.
Failure Point OK NG 1) Printed wire broke between P301 pin 5, 6, and I301 pin 2. 2) FB301 or FB302 or FB303 is open.
Check if the MOS FET Gate level on I301 pin 1, that Gate level is low. OK
OK
NG
Check the PANELVCC_EN signal of the Q302 pin 2 (with R309) at high level.
Failure Point I301 is failure. OK NG
Failure Point 1) Printed wire broke between Q302 pin 3, R307, R308, C309 and I301 pin 1. 2) Q302 is failure.
Failure Point Check the P306 all LVDS signals. 1) Printed wire broke between Q302 pin 2 and I306 pin 127. 2) I306 is failure.
Failure Point OK NG 1) Printed wire broke between P306 and I306 LVDS signals. 2) I306 is failure.
Failure Point 1) The LVDS cable broke between P306 and LCD module. 2) LCD module is failure.
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4.3 Checking the back light unit
Is +20V supplied to inverter PWB ? (by the power board)
Failure Point OK NG 1) Inverter cable disconnection. 2) Power board failure.
Check the BACKLIGHT_EN signal of the P301 pin 2 at high level.
Failure Point OK NG 1) printed wire broke between P301 pin 2, R305 and I306 pin 49. 2) R305 is open, or R306, C308 are short. 3) I306 is failure.
Check the BACKLIGHT_ADJ signal of the P302 pin 3 from I306 pin 50 is a PWM signal.
Failure Point OK NG 1) printed wire broke between P301 pin 3, Q301 and I306 pin 50. 2) Q301 is failure. 3) R301 or R302 or R304 is open, or C304 is short. 4) I306 is failure.
Failure Point Back light unit of LCD module is failure.
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4.4 Abnormal screen 4.4.1 Abnormal screen for VGA source
Check the R, G, B video signal from computer input on P302 of video connector.
NG OK
Failure Point 1) No R, G, B video signals output from host computer, check computer. 2) VGA video signal cable disconnection.
Check the R, G, B input video signals on I306 pin 99, 96, 93 respectively that their level is 0.5 to 1.0Vp-p.
NG OK
Failure Point In the case of the Red signal. (Green and Blue signal is the same path, too.) 1) Printed wire broke between P302 pin 1 and I306 pin 99. 2) Video cable is failure. 3) FB3305, FB306, R313 are open. 4) R313 are short. 5) C317 is short or open.
Check the H, V SYNC input signals on I306 pin 89, 90 respectively that signal and level.
Failure Point NG OK 1) Printed wire broke between I306 and P302. 2) FB311, FB312, R321, R322 are open. 3) R323, R324 if is 2.4K ohm. 4) D305, D306, C327, C328 are short. 5) Video cable is failure.
Check all LVDS signals being output to P306 from I306?
Failure Point NG OK 1) Printed wire broke between I306 and P306. 2) LVDS wire failure.
Prpcess "Checking the resolution change IC movement" section.
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4.4.2 Abnormal screen for DVI source
Check the TMDS signal from computer input on P303 of DVI-D video connector.
NG OK
Failure Point 1) No TMDS signals output from host computer, check computer. 2) DVI-D video signal cable disconnection.
Check the HP output signal to P303 pin 16 respectively that voltage is 4.0 to 5 V.
Failure Point The HP is high will to generated TMDS from PC host. 1) Check P303 pin 14 if is 5V. 2) Printed wire broke between P303 pin 14 and Q305. 3) C343, C344 is short. 4) Q305 is failure. 5) DVI-D cable is failure. 6) Printed wire broke between Q305 and I306 pin 86. 7) R361 is open. Q305 is failure. 8) I306 is failure.
NG OK
Check the TMDS input video signals on I306 pin 72, 73, 75, 76, 80, 81, 83, 84 respectively that their differential input voltage is 150 to 1200 mV.
Failure Point NG OK In the case of the RX2+/- signal. (A RX1, 0, and RXC signal is the same path, too.) 1) Printed wire broke between P303 pin 1, 2 and I306 pin 72, 73. 2) DVI-D video cable is failure. 3) R332, R333 is open.
Check all LVDS signals being output to P306 from I306?
OK
NG
Failure Point 1) Printed wire broke between I306 and P306. 2) LVDS cable failure.
Prpcess "Checking the resolution change IC movement" section.
Page 16
4.5 Abnormal OSD display adjust problem
Check the input level whether was changed when pressed function keys on the P308 pin 2, 3, 4, 5. (normal is 3.3V, when push button, generated different voltage. pin 2, 4 is 2.46V, pin 3, 5 is 2V)
OK
NG
Failure Point 1) Function key wire disconnection. 2) Function key wire is failure. 3) Function key board is failure.
Check the input voltage level whether was changed when pressed function keys on the I306 pin 114, 115. (normal is 3.3V, when push button, generated 2.46V or 2V.)
NG OK
Failure Point 1) Printed wire broke between P308 pin 2 and I306 pin 115. 2) Printed wire broke between P308 pin 3 and I306 pin 115. 3) Printed wire broke between P308 pin 4 and I306 pin 114. 4) Printed wire broke between P306 pin 5 and I306 pin 114. 5) C381, C382, R367, R368, C387, C388, C389, C390, C391, C392 is short. 6) R378, R379, R381, R382, R384, R385 is short or open. 7) R380, R383 is open.
Failure Point I306 is failure.
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4.6 Abnormal plug and play operation 4.6.1 Abnormal plug and play operation for VGA
Confirm the host computer supplies DDC/CI mode.
NG OK
Failure Point The host machine is not communicated in DDC/CI mode.
Check the voltage on P302 pin 9 that is DC 5 V.
NG OK
Failure Point The VGA video cable is failure.
Check the voltage on I304 pin 8 that is DC 5 V.
NG OK
Failure Point 1) Printed wire broke between I304 pinv8, D307 and P302 pin 9. 2) D307 is failure.
Check the signals if is high level on P302 pin 12, 15 that is I2C data / clk signal.
NG OK
Failure Point The VGA video cable is failure.
Check the output signal of I2C data / clk on I304 pin 5, 6.
OK
NG
Failure Point I304 is failure.
Failure Point 1) Printed wire broke between I306 pin 65, 64, I304 pin 5, 6 and P302 pin 12, 15. 2) I306 maybe failure. 3) R328, R329 is open. 4) C331, C332, R326, R327 is short.
Page 18
4.6.2 Abnormal plug and play operation for DVI
Confirm the host computer supplies DDC/CI mode.
NG OK
Failure Point The host machine is not communicated in DDC/CI mode.
Check the voltage on P303 pin 14 that is DC 5 V.
NG OK
Failure Point The DVI-D video cable is failure.
Check the voltage on I305 pin 8 that is DC 5 V.
NG OK
Failure Point 1) Printed wire broke between I305 pin 8, D320 and P303 pin 14. 2) D320 is failure.
Check the signals if is high on P301 pin 7, 6 that is I2C data / clk signal.
NG OK
Failure Point The DVI-D video cable is failure.
Check the output signal of I2C data / clk on I305 pin 5, 6.
OK
NG
Failure Point I305 is failure.
Failure Point 1) Printed wire broke between I306 pin 67, 66, I305 pin 5, 6 and P303 pin 7, 6. 2) I306 maybe failure. 3) R346, R347 is open. 4) C346, C347, R324, R343 is short.
Page 19
4.7 Checking the interface circuit of sync signal 4.7.1 Checking the control circuit of horizontal sync pluse for VGA
Check the horizontal sync signal on P302 pin 13 TTL level.
NG OK
Failure Point VGA Video cable is failure.
Check the horizontal sync signal on I306 pin 89 TTL level. Failure Point NG OK 1) Printed wire broke between P302 pin 13 and I306 pin 89. 2) FB311, R321 is open. 3) R324, C328 is short.
Failure Point Process "Checking the resolution change IC movement" section.
4.7.2 Checking the control circuit of vertical sync pluse for VGA
Check the vertical sync signal on P302 pin 14 TTL level.
NG OK
Failure Point VGA Video cable is failure.
Check the vertical sync signal on I306 pin 90 TTL level. Failure Point NG OK 1) Printed wire broke between P302 pin 14 and I306 pin 90. 2) FB312, R322 is open. 3) R323, C327 is short.
Failure Point Process "Checking the resolution change IC movement" section.
Page 20
4.8 Checking the resolution change IC movement
Check +3.3V supply on I306 pin 110, 101, 92, 82, 74, 2, 25,47, 53, 91, 116, 63.
NG OK
Proceed " Checking the DC/DC converter circuit" section.
Check +1.8V supply on I306 pin 118, 87, 55, 17, 78, 70, 104, 106.
NG OK
Proceed " Checking the DC/DC converter circuit" section.
Check X301 14.318MHz clock input to I306 pin 108 and 109.
OK
NG
Failure Point 1) Printed wire broke between X301 and I306 pin 108, 109. 2) C362, C373 is short or open. 3) X301 failure.
Check I306 pin 111 RESETn signal is high level at normal operation. Failure Point NG OK 1) Check I307 pin 2 is low level wait 200~250ms to high level, when VCC5V is turned on. 2) I307 failure. 3) Printed wire broke between I306 pin 111 and I307. 4) C375 is short. 5) R348 is short or open. 6) I311 failure.
Check I306 pin 50, 51, 56~59, 119 Boot configure, when Reset signal low to high. Failure Point 1) Check I306 pin 50, if is low. R358 is open or short. 2) Check I306 pin 51, if is low. R354 is open or short. 3) Check I306 pin 56, if is low. R355 is open or short. 4) Check I306 pin 57, if is low. R356 is open or short. 5) Check I306 pin 58, if is low. R357 is open or short. 6) Check I306 pin 59, if is high. R363 is open or short. 7) Check I306 pin 119, if is high. R351 is open or short.
NG OK
Check I306 pin 59~62 SPI ROM interface signal.
Failure Point OK NG 1) Printed wire broke between I306 pin 59~62 and I309. 2) I309 failure.
Failure Point I311 failure.
Page 21
4.9 Audio No Signal Output
Check the audio signal input from the audio source.
Failure Point NG OK 1) No audio signal from the audio source. 2) Audio cable is failure.
Check audio signal input of the I310 TPA6021A4 pin 4, 5, 7, 8.
Failure Point OK NG 1) Printed wire broke between P309 and I310 pin 4, 5, 7, 8. 2) FB318, FB319, R386, R387, C393, C394, C397, C398 is open. 3) C395, C396, R388, R389 is short.
Check I310 audio power +5V.
Failure Point 1) Power board have no output 5V on P301 pin 7, 8. 2) Power board is failure. 3) Printed wire broke between P301 pin 7, 8 and I310 pin 3, 6, 9. 4) FB321 is open. 5) C301~C303, C401~C404 is short. 6) FB320, FB322 is open.
NG OK
Next Page
Page 22
Continue
Check I310 pin 14 SHOUTDOWNn if is low level.
Failure Point NG OK 1) Printed wire broke between I306 pin 51 and Q309 and I310 pin 14. 2) R392, R390, R391 is open or short. 3) C400 is short. 4) Q309 is filure. 5) I306 is failure.
Check I310 pin 10, 12, 20, 2 audio signal output.
Failure Point NG OK 1) Printed wire broke between I310 pin10, 12, 20, 2 and P310 pin 1, 2, 3, 4. 2) I316 is failure.
Check audio speaker is working.
NG OK
Failure Point 1) Audio output wire is disconnected from the interface board P310 to key function board P601. 2) Printed wire broke between P600 and P601 and P602 for the key function board. 3) Audio speaker unit is disconnected from the P601 and P602.
Failure Point Audio speaker unit "L" or "R" is failure.
Page 23
5. Schematics:
5.1 HP_W1907&WF1907_TOP
HP W1907&WF1907
24
Go to cover page
1
VCC5V VCC5V RIN GNDR GIN GNDG BIN GNDB HS_IN VS_IN HS_IN VS_IN HS_IN VS_IN HS_IN VS_IN RIN GNDR GIN GNDG BIN GNDB RIN GNDR GIN GNDG BIN GNDB RIN GNDR GIN GNDG BIN GNDB 3.VGA & DDC INTERFACE 5.SCALER GM5726H
2
3
4
5
6
7
8
9
10
11
12
13
6.KEY & PANEL INTERFACE
A
B
DDC_SCL_VGA DDC_SDA_VGA DDC_WPn VGA_DETn DDC_WPn VGA_DETn DDC_WPn VGA_DETn DDC_WPn VGA_DETn DDC_SCL_VGA DDC_SDA_VGA DDC_SCL_VGA DDC_SDA_VGA DDC_SCL_VGA DDC_SDA_VGA
CH3P_LV_E CH3N_LV_E CH2P_LV_E CH2N_LV_E CH1P_LV_E CH1N_LV_E CH0P_LV_E CH0N_LV_E CLKP_LV_E CLKN_LV_E CH3P_LV_O CH3N_LV_O CH2P_LV_O CH2N_LV_O CH1P_LV_O CH1N_LV_O CH0P_LV_O CH0N_LV_O CLKP_LV_O CLKN_LV_O
CH3P_LV_E CH3N_LV_E CH2P_LV_E CH2N_LV_E CH1P_LV_E CH1N_LV_E CH0P_LV_E CH0N_LV_E CLKP_LV_E CLKN_LV_E CH3P_LV_O CH3N_LV_O CH2P_LV_O CH2N_LV_O CH1P_LV_O CH1N_LV_O CH0P_LV_O CH0N_LV_O CLKP_LV_O CLKN_LV_O
CH3P_LV_E CH3N_LV_E CH2P_LV_E CH2N_LV_E CH1P_LV_E CH1N_LV_E CH0P_LV_E CH0N_LV_E CLKP_LV_E CLKN_LV_E
CH3P_LV_E CH3N_LV_E CH2P_LV_E CH2N_LV_E CH1P_LV_E CH1N_LV_E CH0P_LV_E CH0N_LV_E CLKP_LV_E CLKN_LV_E
A
B
C
3.VGA & DDC INTERFACE
CH3P_LV_O CH3N_LV_O CH2P_LV_O CH2N_LV_O CH1P_LV_O CH1N_LV_O CH0P_LV_O CH0N_LV_O CLKP_LV_O CLKN_LV_O
CH3P_LV_O CH3N_LV_O CH2P_LV_O CH2N_LV_O CH1P_LV_O CH1N_LV_O CH0P_LV_O CH0N_LV_O CLKP_LV_O CLKN_LV_O LED_B LED_A LBADC_IN1 LBADC_IN2 PWR_KEYn LED_B LED_A LBADC_IN1 LBADC_IN2 PWR_KEYn
VCC5V
VCC5V
3V3_DVDD1
C
LED_B LED_A LBADC_IN1 LBADC_IN2 PWR_KEYn
3V3_DVDD1 LED_B LED_A VLCD LBADC_IN1 LBADC_IN2 PWR_KEYn
VLCD
D
DDC_WPn DVI_DETn HDCP_HPDn VCC5V VCC5V RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXCDDC_SCL_DVI DDC_SDA_DVI RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXCDDC_WPn DVI_DETn HDCP_HPDn
4.DVI & DDC INTERFACE DVI_DETn HDCP_HPDn
D
DVI_DETn HDCP_HPDn RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXC-
6.KEY & PANEL INTERFACE
E
RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXCDDC_SCL_DVI DDC_SDA_DVI
2.POWER
E
BKLT_ADJ BKLT_EN PANELVCC_EN
BKLT_ADJ BKLT_EN PANELVCC_EN
BKLT_ADJ BKLT_EN PANELVCC_EN
BKLT_ADJ BKLT_EN PANELVCC_EN
VCC5V
VCC5V
VCC3V3 DDC_SCL_DVI DDC_SDA_DVI VCC5V VCC3V3 VCC5V VCC3V3
F
DDC_SCL_DVI DDC_SDA_DVI
VCC3V3
VCC1V8
F
VCC1V8
VLCD
4.DVI & DDC INTERFACE
VDD 6.AUDIO AUDIO_EN VDD VOLUME AUDIO_EN VOLUME AUDIO_EN VOLUME AUDIO_EN VOLUME
VCC1V8 VCC1V8 3V3_DVDD1
VLCD
VDD
3V3_DVDD1
VDD
G
2.POWER
G
7.AUDIO 5.SCALER GM5726H
1
2
3
4
5
6
7
8
9
10
11
12
13
PCB No.
6832176900P0D
5.2a HP_W1907_POWER
HP W1907&WF1907
25
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1
VDD VDD C301 C302 0.1uF VCC5V FB301 FB302 VCC5V BACKLIGHT_ADJ BACKLIGHT_EN C305 0.1uF 0.1uF C306 C307 100uF/16V C304 0.1uF(NC) PBY160808T-600Y-S PBY160808T-600Y-S T4 10uF/16V(NC) C303 T1
2
3
4
5
6
7
8
9
10
11
12
13
A
P301 9 8 7 6 5 4 3 2 1
T2 0.1uF
T3
VCC5V
A
R301 R302 10K R303 18K(NC)
T5
1K
3
T6
B
JWT-A2001WR2-9P
Q301 MMBT3904
R304
T7
2
BKLT_ADJ
BKLT_ADJ
4K7
B
T8
1
R305
T9
BKLT_EN C308 0.1uF R306 10K(NC)
BKLT_EN
100
C
VCC5V T10 T11 FB303 PBY160808T-600Y-S
D
C
G
S
I301 AO3401
T12
FB304
T13
VLCD
2 R307 10K T14 R308 R309 2K4 C309 0.1uF T15 C310 10uF/16V
3
PBY160808T-600Y-S
VLCD
D
T16 PANELVCC_EN PANELVCC_EN T17 2
C311
C312
0.1uF
0.1uF
D
3
Q302 MMBT3904 C
47K
1
1
E
B
E
E
F
VCC5V
F
TO-263
I302 3 VIN C313 10uF/16V 1 ADJ VOUT TAB AIC1084-33CM 2 4 T18
VCC3V3
VCC3V3
TO-252
VCC3V3 C314 100uF/16V C315
I303
T19
VCC1V8
3
VIN
VOUT
2
VCC1V8
G
1
ADJ
TAB
4
10uF/16V
AIC1117-18PE
C316
G
100uF/16V
1
2
3
4
5
6
7
8
9
10
11
12
13
PCB No.
6832176900P0D
5.2b HP_WF1907_POWER
HP W1907&WF1907
26
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1
F801 L 1 * R822 300K/0805
2
0.01u/1KV
T801 ET-20 R802 SCK083 C809 BEAD/6mm C806 1 D801 GBU408 R803 1W 0.51 MOF L801 2 R805 100K/2W
3
4
5
6
7
T802 ER28
8
10 L804 JUMPER WIRE 3
9
10
11
12
13
D809
STPF1020CT
+22V
3.15AH250V G
C803 C801 C819 C820 3300P/250V-Y
2
2 1 9
1
3
0.01uF/630V
300K/0805
0.1U/275V
0.47U/275V
100U/450V
1
2
A
N R820 C804 3300P/250V-Y 0.01u/1KV GND-1 1 D804 2 1N4937 R807 3.3 C808 C825 GND-1 * C802 2200P/250V C832 2200P/250V C815 0.01uF 1KV GND 2 P801 GND
R821 300K/0805 GND
4
3
+ C818
+
4 C805 + R804 15K
+
C816 1000P D803 PR1007G
470U/35V
C817 470U/35V
C814 0.1uF
D811 27B
R818
500V X7R 1 4 L803 BEAD/6mm 7
3
GND-2
GND
3
R828 1K
910/2W
A
2
Q806 3904
R817 1K
1
VCC
GND
1 2
GND-1 1 Q803 7N65C C810 100P 1KV X7R 5 3 6 GND 1 D810 3 SBF1045CT
GND
D807 18B
1
I801
1
+
R814 GND-1 R819 R830 68K/0805 GND-1 R806 4 3 2 LTV817 2 C R826 1K 1 4.75K 1% I802 R823 R825 1K 270 C827 0.01uF 1K/MOF 22/MOF R813 100/MOF R815 4.7K/MOF D806 1N4148 1 2 C807 82uF/35V
B
2
VCC DRAIN
8 7 6 5
2
L802
+5V
GND HV SPACE GDRV IS PRCT CTRL
TEA1530
10U
B
3
C811 0.22uF R829 1 D812 2 R811 0.27/2W GND-1
2
C813 0.22uF
1
3
1uF/50V
R809 100K
4
C829 +
2
C821 1000P 100V X7R
C822 1000U/10V
+
+ C824 1000U/10V
+
C823 1000U/10V
GND-1
R816 0
VCC
GND
GND
GND
BRI ON-OFF 120K/0805 1N4148 R831 R824 33K 1% 33K 1% R832 4.7K 1% R833 100 VR801 10K
P802
C
R808 13K C812 33nF C826
+
GND-1 C828 2.2uF/50V GND
+5V +5V +5V +5V GND GND GND 3 R I803 AP431 1%
1 2 3 4 5 6 7 8 9 10
1
ON-OFF BRI +5V R105 22 1
GND-1
1uF/50V 2
+
1 A
GND R827 1.5K 1% GND 3 R132 2K/0805 2 1 1 Q102 3904 GND
C
+22V
1
1
P101 2P
1
1
+
1
+
C124 220uF/35V
C102
+
C101
22uF/50V 2
R136 10K I101 1 DRV1 VDDA TIMER DIM ISEN 6 7 R103 18K GND-2 8 VSEN OVPT NC 2 R113 3 4 5 10K
0.1uF
D
GND-2
D105 *
C125 220uF/35V
C112 10P/3KV
C114 5P/3KV
2
2
1
1
GND 16 PGND DRV2 GNDA CT 15 R104 510K GND 14 13 R118 56K R134 2K/0805 2 3 Q103 3906 R131 22
GND Q104 AOD413 1 1 GND
D101 SB140
D106 1N4148 1 2
3
R116 3M 1/4W
P102 2P
2
2
R117
D
GND-2
R107 5.6K 1 12 C106
R115 3.3K 1%
100K 1% C115 470P X7R
2
2
Q101 2N7002
D103 * GND
D114 1N4148 1 2
2
R119
GND
15K 1%
2
R138 1K/0805
R137 1K/0805
GND
GND
SSTCMP LCT ENA NC
R120 11 10 9 0.047uF GND R133 GND
C111
+
C110 2.2uF/50V R102 30.1K
D107 1N4148 1 2
3
1
1
D116
2
2
E
1000P GND-2 R101 10K GND-2
5.1K
1
C103
+
R106
22
7
T101
150K 1%
2.2uF/50V
OZ9938
C104 330P NPO
2
.
2
Q105 AOD454 1 GND-2 GND-2 1
.
5
D108 2
1N4148 1
C109 0.01uF
1N4148
R111 499 1%
D117 1N4148
E
4
6
C105 1000P
D102 SB140
C123 10uF/1206/X5R
3
.
2
.
8
GND
GND
1 EEL22
2
1
1
1
P103 2P
F
GND-2
D104 * GND
GND
C134 10uF/1206/X5R
GND
C122 10uF/1206/X5R
3
C116 10P/3KV
C118 5P/3KV
2
2
F
1
1
D109 1N4148 1 2
R125 3M 1/4W
P104 2P
R121 100K 1%
R126 3.3K 1% R135 1M C130 1000P C131 22nF R128 D112 1N4148 1 2 GND-2 GND-2 5.1K D113 2 1N4148 1 C128 0.01uF
D118 1N4148 1 2
GND
R122 15K 1%
C119 470P X7R
2
2
R140 1K/0805
R139 1K/0805
GND
R130 499 1%
D121 1N4148
GND
GND
1
2
3
4
5
6
7
8
9
10
11
12
2
1
G
D120 1N4148 1 2
GND
G
13
PCB No.
6832180800-0B
5.3 HP_W1907&WF1907_VGA & DDC INTERFACE
HP W1907&WF1907
27
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1
P302
2
T20 1 9 2 10 3 11 4 12 5 13 6 14 7 15 8 FB307 FB309 0 0 VGA_RED VGA_5V VGA_GREEN VGA_CONn VGA_BLUE FB305 0 T21 T22 T23 T24 T25 FB306 FB308 FB310
3
4
5
6
7
8
9
10
11
12
13
17
T26 SBK160808T-600Y-S SBK160808T-600Y-S SBK160808T-600Y-S
T27
T28
RED_IN
R310
75/1%
C317
10nF
RIN
RIN
GREEN_IN
R311
100
C318
10nF
GNDR
A
3 3
VGA_SDA VGA_HSYNC VGA_VSYNC VCC5V VCC5V VCC5V 75/1% R313 D301 MMBD7000 D302 MMBD7000 D303 MMBD7000
GNDR
BLUE_IN
3
T29 R315
T30
T31
T32
A
75/1%
R314 75/1%
R312
75/1%
C319
10nF
GIN
GIN
T33
R316
100
C320
10nF
GNDG
GNDG
VGA_SCL C321 0.1uF C322 0.1uF C323 0.1uF
T34
T35
T36
T37
1
2
1
2
1
2
R317
75/1%
C324
10nF
BIN
BIN
B
16
CONNECTOR DB15
T38 VCC5V
R318
100
C325
10nF
GNDB
GNDB
B
R319
T39
T40
T41 VGA_CONn R320 1K
T42
10K
VGA_DETn D304 C326 MMSZ5232B 0.1uF
VGA_DETn
C
C
T43
FB311 SBK160808T-451Y-S FB312
T44 R321 R322 100 100
T45
HS IN
HS_IN
D
T46
VS IN SBK160808T-451Y-S D305 MMSZ5232B R323 2K4 D306 MMSZ5232B R324 2K4 T47
VS_IN
D
C327
C328
T48
220pF
220pF
E
E
VCC5V VCC5V T49 T50 VGA_5V C330 T52 VGA_SCL VGA_SDA R328 R329 T55 47 47 D309 MMSZ5232B D310 MMSZ5232B C331 47pF C332 47pF DDC_SCL_VGA DDC_SDA_VGA 0.1uF D307 BAT54C R326 12K R327 12K D308 MMSZ5232B C329 0.1uF 8 7 6 5 DDC_SCL_VGA DDC_SDA_VGA I304 VCC WP SCL SDA 24C02 A0 A1 A2 GND DDC5V_A
F
F
T51
R325
10K
1 2 3 4
3
T53
R330
T54
2
DDC_WPn
DDC_WPn
G
Q303 MMBT3904
2K4
T56
G
1
DDC_SCL_VGA DDC_SDA_VGA
DDC_SCL_VGA DDC_SDA_VGA
T57
1
2
3
4
5
6
7
8
9
10
11
12
13
PCB No.
6832176900P0D
5.4 HP_W1907&WF1907_DVI & DDC INTERFACE
HP W1907&WF1907
28
Go to cover page
1
C333 0.1uF VCC5V C334 0.1uF C335 0.1uF C336 0.1uF VCC5V VCC5V VCC5V
2
3
4
5
6
7
8
9
10
11
12
13
VCC5V C337
2
1
2
1
2
1
2
1
A
T58 D311 MMBD7000 D312 MMBD7000 D313 MMBD7000 D314 MMBD7000
100uF/16V(NC)
R331 10K
A
T59
T60
T61
T62
3
3
3
3
P303
DVI_RX2DVI_RX2+
R332 R333
10/1% 10/1%
RX2RX2+
RX2RX2+
B
DVI_SCL DVI_SDA T66 DVI_5V C343 T67 DVI_5V DVI_CONn DVI_HP T69 DVI_RX0DVI_RX0+ T72 DVI_RXC+ DVI_RXCT76 T73 T68 0.1uF 1K R337 C344 DVI_RX1DVI_RX1+ T65
27 29 31 RX2RX2+ GND RX4RX4+ SCL SDA VS T63 RX1RX1+ GND RX3RX3+ 5V GND HP RX0RX0+ GND RX5RX5+ GND RXC+ RXC17 18 19 20 21 22 23 24 C1 C2 C3 C4 C5 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 DVI_RX2DVI_RX2+
DVI_RX1DVI_RX1+ DVI_CONn R336 1K
R334 R335
10/1% 10/1%
RX1RX1+
RX1RX1+
T64
DVI_DETn
DVI_DETn
B
VCC5V C339 0.1uF VCC5V C340 0.1uF VCC5V C341 0.1uF
D315
C338
C342 0.1uF
VCC5V
MMSZ5232B
0.1uF
2
1
2
1
2
1
2
0.1uF
1
C
T70
D316 MMBD7000
D317 MMBD7000
D318 MMBD7000
D319 MMBD7000 DVI_RX0DVI_RX0+
T71
C
3 3 3 3
R338 R339
10/1% 10/1%
RX0RX0+
RX0RX0+
T74
T75
DVI_RXC+ DVI_RXC-
R340 R341
10/1% 10/1%
RXC+ RXC-
RXC+ RXC-
D
32 30 28
RED GRN BLU HS GND
T77
D
3
T176 2 Q305 MMBT3904 R361 2K4 T101
HDCP_HPDn
HDCP_HPDn
DVI-D
1
E
VCC5V VCC5V D320 BAT54C DVI_5V DDC5V_D R342 12K R343 12K D321 MMSZ5232B C345 0.1uF T78
E
DDC5V_D
R344
F
T82 DVI_SCL DVI_SDA T83 R346 R347 47 47
T79
10K
F
I305 DDC_SCL_DVI DDC_SDA_DVI C346 D322 MMSZ5232B D323 MMSZ5232B 47pF C347 47pF DDC_SCL_DVI DDC_SDA_DVI 8 7 6 5 VCC WP SCL SDA 24C02
1
A0 A1 A2 GND
1 2 3 4
3
T80
T81
2
R345
2K4
DDC_WPn
DDC_WPn
Q304 MMBT3904
G
T84
G
DDC_SCL_DVI DDC_SDA_DVI
DDC_SCL_DVI DDC_SDA_DVI
T85
1
2
3
4
5
6
7
8
9
10
11
12
13
PCB No.
6832176900P0D
5.5 HP_W1907&WF1907_SCALER GM5726H
HP W1907&WF1907
29
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1
VCC3V3 FB314 PBY160808T-301Y-S C355 10uF/16V 0.1uF 10uF/16V 0.1uF 0.1uF 0.1uF 0.1uF 10uF/16V 0.1uF 0.1uF 0.1uF 0.1uF C356 C357 C358 C359 C360 C361 C348 C349 C350 C351 C352 PBY160808T-301Y-S C353 0.1uF FB315 PBY160808T-301Y-S 3V3_RPLL T87 VCC3V3 3V3_AVDD T88 VCC3V3 FB313 3V3_DVDD T86
2
3
4
5
6
7
FB323
8
3V3_DVDD1 PBY160808T-301Y-S C354 0.1uF
9
10
11
12
13
3V3_RPLL
3V3_DVDD1
3V3_AVDD
3V3_DVDD
1V8_CVDD
1V8_AVDD
101 92
104
I306
RVDD_33 RVDD_33
LBADC_VDD_33
CVDD_18 CVDD_18 CVDD_18 CVDD_18
AVDD_RPLL_33
VCC1V8 FB316 VCC1V8 PBY160808T-301Y-S C368 10uF/16V 0.1uF 0.1uF 0.1uF 0.1uF C369 C370 C371 C372 C363 10uF/16V 0.1uF 0.1uF 0.1uF 0.1uF C364 C365 C366 C367 FB317 PBY160808T-301Y-S
1V8_CVDD
T89
VCC1V8
1V8_AVDD
T90
3V3_RPLL C362 10pF
T91
X301 14.318MHZ C373 10pF T92 RIN GNDR GIN GNDG BIN GNDB
AVDD_ADC_33 AVDD_ADC_33
AVDD_ADC_18
VDD_RPLL_18
AVDD_DVI_33 AVDD_DVI_33
VDD_OUT_33 VDD_OUT_33 VDD_OUT_33
AVDD_DVI_18 AVDD_DVI_18
106
110
116
118 87 55 17
2 25 47
78 70
82 74
53 91
A
A
XTAL TCLK
108 109
XTAL TCLK
B
VCC5V VCC5V C374 I307 VCC RST GND STL8110GNL463 (FNLH) 1 2 3 T94 2K4 0.1uF R348 T93 HS_IN VS_IN VCC3V3 RIN GNDR GIN GNDG BIN GNDB
RIN GNDR GIN GNDG BIN GNDB HS_IN VS_IN IC_RESETn C375 100pF 3V3_DVDD C376 0.1uF HS_IN VS_IN IC_RESETn
99 100 96 97 93 94 89 90 111
RED+ REDGREEN+ GREENBLUE+ BLUE-
GPIO_8/VDATA[0] GPIO_9/VDATA[1] GPIO_10/VDATA[2] GPIO_11/DATA[3] GPIO_12/VDATA[4] GPIO_13/VDATA[5] GPIO_14/VDATA[6] GPIO_15/VDATA[7]
120 121 122 123 124 125 126 128
DVI_DETn VGA_DETn SCL SDA DDC_WPn LED_A LED_B
DVI_DETn VGA_DETn
DDC_WPn LED_A LED_B
B
HSYNC VSYNC
RESETn
VCLK_IN VHS_IN VVS_IN VDE_IN CH3P_LV_E/PD0 CH3N_LV_E/PD1 CLKP_LV_E/PD2 CLKN_LV_E/PD3 CH2P_LV_E/PD4 CH2N_LV_E/PD5 CH1P_LV_E/PD6 CH1N_LV_E/PD7 CH0N_LV_E/PD8 CH0N_LV_E/PD9 63 DDC_SCL_VGA DDC_SDA_VGA DDC_SCL_VGA DDC_SDA_VGA DDC_SCL_DVI DDC_SDA_DVI DDC_SCL_DVI DDC_SDA_DVI DDC_SCL_VGA DDC_SDA_VGA DDC_SCL_DVI DDC_SDA_DVI 64 65 66 67
3 4 5 6 7 8 9 10 11 12 13 14 15 16
CH3P_LV_E CH3N_LV_E CLKP_LV_E CLKN_LV_E CH2P_LV_E CH2N_LV_E CH1P_LV_E CH1N_LV_E CH0P_LV_E CH0N_LV_E
CH3P_LV_E CH3N_LV_E CLKP_LV_E CLKN_LV_E CH2P_LV_E CH2N_LV_E CH1P_LV_E CH1N_LV_E CH0P_LV_E CH0N_LV_E
C
RVDD_33
DDC_SCL_VGA/GPIO_16 DDC_SDA_VGA/GPIO_17
DDC_SCL_DVI/GPIO_18 DDC_SDA_DVI/GPIO_19 RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXCRX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXCVCC3V3 3V3_DVDD1 R350 3V3_AVDD RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXCREXT T96 69
PD10/V_FIELD PD11 GPIO_30 GPIO_31 PD12/GPO32 PD13/GPO33 PD14/GPO34 PD14/GPO35
19 20 85 86 21 22 23 24
HDCP_HPDn
HDCP_HPDn
C
72 73 75 76 80 81 83 84
D
VCC5V C378 0.1uF(NC) P304 1 2 3 4 JWT-A2001WV2-04(NC) UART_DO UART_DI T99 T98 BKLT_ADJ VOLUME AUDIO_EN BKLT_ADJ VOLUME AUDIO_EN
RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXC-
REXT C377 R351 2K4 R352 2K4(NC) 0.1uF T97 GPO_5 BKLT_ADJ UART_DO UART_DI VOLUME AUDIO_EN R353 2K4(NC) R354 2K4 T100 3V3_DVDD R355 2K4 R356 2K4 R357 2K4 R358 2K4 SPI_CSn SPI_CLK SPI_DI SPI_DO 59 60 61 62 119 50 58 57 56 51 250/1%
PD16/GPO36 PD17/GPO37 PD18/GPO38 PD19/GPO39 CH3P_LV_O/PD20 CH3N_LV_O/PD21 CLKP_LV_O/PD22 CLKN_LV_O/PD23 CH2P_LV_O/DEN CH2N_LV_O/DHS CH1P_LV_O/DVS CH1N_LV_O/DCLK CH0P_LV_O CH0N_LV_O
27 28 29 30 31 32 33 34 35 36 37 38 39 40
CH3P_LV_O CH3N_LV_O CLKP_LV_O CLKN_LV_O CH2P_LV_O CH2N_LV_O CH1P_LV_O CH1N_LV_O CH0P_LV_O CH0N_LV_O
CH3P_LV_O CH3N_LV_O CLKP_LV_O CLKN_LV_O CH2P_LV_O CH2N_LV_O CH1P_LV_O CH1N_LV_O CH0P_LV_O CH0N_LV_O
D
GPO_5/PWM1 GPO_4/PWM0 GPO_3 GPO_2 GPO_1/PWM3 GPO_0/PWM2
GPIO_24 GPIO_25 GPIO_26 GPIO_27 GPIO_28 IR_IN/GPIO_29
41 42 43 44 45 46
PPWR PBIAS
127 49
PANELVCC_EN BKLT_EN
PANELVCC_EN BKLT_EN
E
VCC3V3 VCC3V3 C379 0.1uF I308 1 2 3 4 A0 A1 A2 GND 24LC16B VCC WP SCL SDA 8 7 6 5 T104 R365 R366 T105 100 100 T106 SCL SDA T107 T103 R359 4K7 R360 4K7 R364 10K R363 2K4 SPI_CSn SPI_DI SPI_WPn I309 1 2 3 4 CE# SO WP# GND VCC HOLD# SCK SI SST25VF020A 8 7 6 5
VBUFC_RPLL
105
E
C380 0.1uF SPI_HOLDn SPI_CLK_IN SPI_DO R362 10K T102 R349 10/1% T95
107 AVSS_RPLL
AVSS_ADC AVSS_ADC AVSS_ADC AVSS_ADC
AVSS_DVI AVSS_DVI AVSS_DVI AVSS_DVI
VSS_OUT VSS_OUT
AVSS_BIAS
SPI_CSn SPI_CLK SPI_DI SPI_DO
LBADC_IN1/GPIO_20 LBADC_IN2/GPIO_21 LBADC_IN3/GPIO_22 LBADC_VSS
115 114 113 112
LBADC_IN1 LBADC_IN2 PWR_KEYn
gm5726H PQFP-128
95 98 102 103
18 52 54 88 117
68 71 77 79
26 48
1
CRVSS CRVSS CRVSS CRVSS CRVSS
F
T108
F
T109
PIN 50 PIN 51
H: Use ATMEL SPI ROM, L: Use Standard SPI ROM. H: J-TAG port disable, L: J-TAG port enable. PIN 56 PIN 57 PIN 58 PIN 119 H: Use OSC, L: Use Xtal. H: Internal ROM off, L: Internal ROM on. Set to low. H: UART on GPO, L: UART on DDC.
PWR_KEYn LBADC_IN2 LBADC_IN1
PWR_KEYn LBADC_IN2 LBADC_IN1
R367
C381
R368
C382
R369
C383
G
820K
0.1uF
820K
0.1uF
820K
0.1uF
G
1
2
3
4
5
6
7
8
9
10
11
12
13
PCB No.
6832176900P0D
5.6 HP_W1907&WF1907_KEY & PANEL INTERFACE
HP W1907&WF1907
30
Go to cover page
1
2
3
4
5
6
7
8
9
10
11
12
13
VLCD
P306
VLCD T110 T115 CH3P_LV_E CH3N_LV_E CLKP_LV_E CLKN_LV_E CH2P_LV_E CH2N_LV_E CH1P_LV_E CH1N_LV_E CH3P_LV_E CH3N_LV_E CLKP_LV_E CLKN_LV_E CH2P_LV_E CH2N_LV_E CH1P_LV_E CH1N_LV_E CH0P_LV_E CH0N_LV_E CH3P_LV_O CH3N_LV_O CLKP_LV_O CLKN_LV_O CH2P_LV_O CH2N_LV_O CH1P_LV_O CH1N_LV_O CH0P_LV_O CH0N_LV_O CH2P_LV_O CH2N_LV_O CH1P_LV_O CH1N_LV_O CH0P_LV_O CH0N_LV_O T120 VCC5V T125 T121 T126 T122 T116 T111 T117
A
T112
T113
T114
T118
T119
B
CH0P_LV_E CH0N_LV_E CH3P_LV_O CH3N_LV_O CLKP_LV_O CLKN_LV_O
T123
T124
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
A
B
T127
T128
CVILUX-CF25302D0R0 T129 USE FFC WIRE FOR LVDS INTERFACE
C
R370 10K T130 2 R371 10K
VCC5V
C
1
Q306 MMBT3906
D
LED_B 2K4 LED_B
R372
3
T131 2
T132
3
Q307 MMBT3904
D
1
3V3_DVDD1 VCC5V
LED_A T140 2K4
LED_A
R374
3
T133
T134 2
R373 Q308 MMBT3904 T135 T136 10K LED_BLUE LED_AMBER R375 R376 R377
T137
T138
T139
P307
E
PWR_KEYn PWR_KEYn
200 200 1K
BLUE_LED AMBER_LED KEY_PWRn
5 4 3 2 1
E
1
C384
C385
C386
JWT-A2001W V2-05
0.1uF 3V3_DVDD1 3V3_DVDD1 R378 R379 T141 LBADC_IN1 LBADC_IN2 LBADC_IN1 LBADC_IN2 T147 LBADC_IN1 LBADC_IN2 R380 R383 100 100 T148 C387 0.1uF C388 0.1uF T142 10K 10K R381 R382 R384 R385
0.1uF
0.1uF
F
T143
T144
T145
T146
P308
F
27K 15K 27K 15K
KEY_MENUn KEY_DOWNn KEY_UPn KEY_SELECTn
1 2 3 4 5 6
C389
C390
C391
C392
JWT-A2001W V2-06
0.1uF
0.1uF
0.1uF
0.1uF
G
MENU / UP 2.46V
DOWN / SELECT 2.00V 1.63V
POWER 0.3V
G
1
2
3
4
5
6
7
8
9
10
11
12
13
PCB No.
6832176900P0D
5.7 HP_W1907&WF1907_AUDIO
HP W1907&WF1907
31
Go to cover page
1
P309 PH-JACK-3P (Green) 3 R386 AUDIO_IN_L AUDIO_IN_R R388 T159 47K 47K R389 T160 T156 C393 C394 C397 C398 R387 1K 1K T149 FB318 PBY160808T-301Y-S T150 T151
2
3
4
5
6
7
8
9
10
11
12
13
T152 0.47uF/0805 0.47uF/0805 0.47uF/0805 0.47uF/0805 T158
A
2 1
T153
COLOR IS GREEN
10nF 10nF
T157
D324
C395
D325
FB319 PBY160808T-301Y-S C396
I310
T154
T155
A
AMP_IN_LAMP_IN_L+
7 LIN8 LIN+
LOUT+ 12 LOUT- 10
OUT_L+ OUT_L-
B
PBY160808T-600Y-S EGA10603V05A1(NC) EGA10603V05A1(NC) VDD
FB320
AMP_IN_RAMP_IN_R+
5 RIN4 RIN+
ROUT+ 20 ROUT- 2
OUT_R+ OUT_R-
OUT_L+ OUT_LOUT_ROUT_R+
P310
1 2 3 4
T163 AMP_STBYn 0.3V~3.6V R390 47K T165 R391
1
T161
T162
JWT-A2001WV2-04
B
14 SHUTDOWN
AMP_VOLUME 18 VOL T164 T166 100 C400 VDD FB321 PBY160808T-600Y-S T169 C399
SE/BEL 19
C
C
AMP_PASS
16 BYPASS
FADE 15
T167
T168 2K4 2
3
0.47uF/0805
NC 13
D
AUDIO_EN
AUDIO_EN
R392
Q309 MMBT3906
0.1uF
AMP_5V C401 C402 100uF/16V VDD 0.47uF/0805 C403 0.47uF/0805
6 VDD 3 PVDD 9 PVDD
AGND 17 PW_GND 1 PW_GND 11
D
C404
TPA6021A4
E
0.47uF/0805
E
VDD
T170 R393 1K T174 T175 T172 R394 47K T173
T171
FB322
0
F
F
G
VOLUME
VOLUME
R395
2K4
3
2 Q310 MMBT3904
1
R396 100K
C405 0.1uF
G
1
2
3
4
5
6
7
8
9
10
11
12
13
PCB No.
6832176900P0D
5.8 HP_W1907&WF1907_Function_Key_BD
HP W1907&WF1907
32
Go to cover page
1
P600 1 2 3 4 5 6 7 8 9 10 OUT_R+ OUT_ROUT_L+ OUT_LA1002WR0-10PS-1 GND KEY_SELECTn KEY_UPn KEY_DOWNn KEY_MENUn GND
2
3
4
5
6
7
8
9
10
11
12
13
A
S601
Tact Switch
A
C601
0.1u(NC)
B
B
S602
Tact Switch
C602 P602
C
1 2
0.1u(NC)
C
S603
Tact Switch
A1002WR0-2PS-1
D
Audio out L
C603
D
0.1u(NC)
S604
Tact Switch
E
P601 1 2
E
C604
F
A1002WR0-2PS-1
Audio out R
GND
0.1u(NC)
F
G
G
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
PCB No.
6832177000P0C
5.9 HP_W1907&WF1907_Power_KEY_BD
HP W1907&WF1907
33
Go to cover page
1
P604 1 2 3 4 5 BLUE_LED AMBER_LED KEY_POWERn A1225WR0-5PSBS R601
2
3
4
5
6
7
8
9
10
11
12
13
A
A
Optional
100(NC) R603
LED_AMBER
D601
2
4
B
B
1
3
47(NC)
LED_BLUE
LED(NC)
MAIN
LED_AMBER
D602
C
2
4
C
1
3
LED_BLUE
LED
D
R602 AMBER_LED C605 0.1uF(NC) 100(NC) BLUE_LED R604
LED_AMBER
D
D603
Optional
2
4
1
3
E
47(NC)
C606
0.1uF(NC)
LED_BLUE
LED(NC)
E
F
KEY_POWERn
POWER KEY
S605
F
C607
SFKRBMA2A30T
0.1uF(NC)
G
G
1
2
3
4
5
6
7
8
9
10
11
12
13
PCB No.
6832177100P0D