eMachines E191HQ Service Guide

eMachines E191HQ Manual

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  • eMachines E191HQ | Service Guide - Page 1
    E-machine E191W E191HQ E181H E161HQ Service Guide 1
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    Version A00 Service Guide Version and Revision Release Date Jul.-25-2008 Revision History Initial Release Customer Model E191W E191HQ &E181H E161HQ TPV model T9RMNFH8X7GYAN T9RMNFH8X7GKAN T6RMNFH8X7GYAN 2
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    specifically disclaims any warranties of merchantability or fitness for any particular purpose. Any Emachine Incorporated software described in this manual not doing specific actions. Gives precautionary measures to avoid possible hardware or software problems. Remind you to do specific actions
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    Guide. You MUST use the list provided by your regional Emachine office to order FRU parts for repair and service of customer machines. Warning: (For FCC Certified Models) This device has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC
  • eMachines E191HQ | Service Guide - Page 5
    stand recommended by the manufacturer or sold with the monitor. If you mount the monitor on a wall or shelf, uses a mounting kit approved by the manufacturer and follow the kit instructions safety feature. If LCD Monitors The following symptoms are normal with LCD monitor and do not indicate a problem
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    LCD Panel Specification Support Timing Monitor Block Diagram Main Board Diagram Software Flow chart Main Board Layout Cable Connections Adjusting the viewing angle Chapter 2 Operating Instructions External Controls Adjusting the picture Chapter 3 Machine Disassembly Chapter 4 Troubleshooting
  • eMachines E191HQ | Service Guide - Page 7
    Monitor Features Chapter 1 Introduction Scope This specification defines the requirements for the 19" MICROPROCESSOR based Multi-mode supported high resolution color LCD monitor. This monitor can be directly connected to general 15-pin D-sub VGA connector and 24-pin DVI connector, also supports
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    time All specifications Fully functional Measuring equipment Control settings User brightness control User contrast control User red/ cm for LCD performance, 20 cm for LCD failures : ＞30 minutes : 5 seconds : Chroma 7120 signal generator or equivalent, directly Connected to the monitor under
  • eMachines E191HQ | Service Guide - Page 9
    LCD Monitor General Specification 9
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    LCD Panel Specification 1.M19PW01(E191W) This specification applies to the 19 inch-wide clor TFT-LCD Module M19PW01. The display supports the WXGA+（1440（H）X 900(V)screen format and 16.7 colors。All input signals are 2 Channel LVDS interface comlatible。 This module does not contain an inverter card
  • eMachines E191HQ | Service Guide - Page 11
    Optical Specifications 2.M185B1-L01（E191HQ/E181H） M185B1-L01 is a 18.5" TFT Liquid Crystal Display module with 4 CCFL Backlight unit and 30pin1ch-LVDS interface. This module supports 1366 x 768 WXGA mode and can display up to 16.7M colors.The inverter module for Backlight is not built in。 LCD Panel
  • eMachines E191HQ | Service Guide - Page 12
    Optical Specifications 3. M156B1-L01 (E161HQ) M156B1-L01 is a 15.6" TFT Liquid Crystal Display module with 2 CCFL Backlight unit and 30pin 1ch-LVDS interface. This module supports 1366 x 768 WXGA mode and can display up to 16.7M colors. The inverter module for Backlight is not built in. LCD Panel
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    Optical Specifications 13
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    Supported Timing 14
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    15
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    Block Diagram The LCD MONITOR will contain a main board, a power board and a key board which house the flat panel control logic, brightness control logic and DDC. The Inverter board will
  • eMachines E191HQ | Service Guide - Page 17
    E161HQ Main Board Diagram U402 PM25LV010A LCD Interface CN403(E191W) CN405(E161HQ&E181H/E191HQ) U401 Scalar : NT68167FG QFP64 (Include: MCU, ADC, OSD etc) Crystal 14.318MHZ X401 OSD Control Interface (Key board) CN401 D-SUB Connector (CN101) 17
  • eMachines E191HQ | Service Guide - Page 18
    Software Flow Chart 1 Y 2 3 N 4 N 5 Y 6 N 7 8 Y 9 N 10 11 Y N 12 N 13 Y Y N 14 15 16 Y 17 N 18 19 Y 18
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    go into standby mode after the message disappears. 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
  • eMachines E191HQ | Service Guide - Page 20
    AZC099-04S SOT23-6L IC PM25LV010A-100SCE SOIC-8 Symbol CN404 CN101 CN401 CN403 CN405 Description WAFER 2*6P 2.0MM R/A D-SUB 15PIN WAFER WAFER(E191W) WAFER(E161HQ&E181H/E191HQ) 20
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    Cable Connections 21
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    22
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    at the full face of the monitor, then adjust the monitor's angle to your own preference. 2、 Hold the stand so you do not topple the monitor when you change the monitor's angle. 3、 You are able to adjust the monitor's angle from -5° to 15°. NOTES 1、 Do not touch the LCD screen when you change the
  • eMachines E191HQ | Service Guide - Page 24
    Operating Instructions Chapter 2 Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. • The power cord should be connected. • Connect the
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    Adjusting the Picture 25
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    26
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    Auto Config When Analog signal input, if User Press Hot-Key "Auto", will show this message, and the Please Wait monitor do the auto config function. Input Not Supported When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor support range, will show this message. This message
  • eMachines E191HQ | Service Guide - Page 28
    How To Optimize The DOS-Mode Plug And Play Plug & Play DDC2B Feature This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information
  • eMachines E191HQ | Service Guide - Page 29
    Machine Disassembly Chapter 3 This chapter contains step-by-step procedures on how to assemble the monitor for maintenance. Disassembly Procedure 1. Remove hinge cover, then remove two screws marked A-C to remove base. (Fig 1) A C B 2. Remove the back cover. (Fig 2-3) Fig 1 Fig 2 29
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    Fig 3 1. Remove the front bezel,disconnect the connector remarked in green (Fig 4,5) Key board Fig 4 Fig 5 2. 30
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    3. Remove the screws marked in red and disconnect lamp connections to remove shield. (Fig 6-9) A Fig 6 C Fig 7 E Fig 8 B D F Fig 9 31
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    4. Remove the screws marked in red and the wire connect with power board to remove the boards. (Fig 10,11) Fig 10 6. The monitor disassembly completely. (Fig 12) Fig 11 Fig 12 32
  • eMachines E191HQ | Service Guide - Page 33
    This chapter provides troubleshooting information for the E191W: 1. No Power Chapter 4 No power Press power key and look if the picture is normal NG Please reinsert and make sure
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    2. No Picture (LED is orange) No picture The button if under NG X401 oscillate NG control waveform is normal Replace X401 OK Measure U404 PIN2=3.3V OK OK Check reset circuit of U401 is normal OK Replace U401 NG Check Correspondent component X401 oscillate waveform is normal NG OK NG
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    Panel Power Circuit White screen NG Measure Q404 base X401 oscillate is high level? waveform is normal OK NG OK Check CN403(CN405: E191HQ/ E181H&E161HQ) is broken or Q405 is solder? Check reset circuit of U401 is normal REPLACE X401 Check Correspondent component. NG OK Replace PANEL
  • eMachines E191HQ | Service Guide - Page 36
    4. Key Board OSD is unstable or not working Is Key Pad Board connecting normally? Y Is Button Switch normally? Y Is Key Pad Board normally? Y Check Main Board N Connect Key Pad Board N Replace Button Switch N Replace Key Board 36
  • eMachines E191HQ | Service Guide - Page 37
    5. Power board 715G2824 1C 2(E191W) 1. No Power No power Check to CN902 Pin3, 4 = 5 V OK NG Check AC line volt 120V or 220V OK NG Check the voltage of C905(+) OK NG Check Interface board Change F901, Check BD901, IC901 Check bridge retified circuit Check start voltage for the Pin3 of IC901
  • eMachines E191HQ | Service Guide - Page 38
    (L) 2. W/LED No Backlight Check R805 =16V OK Check ON/OFF signal NG NG OK Check IC801 PIN12=5V Check adapter circuit Check Interface board Change ON/OFF NG Check IC801 PIN9O，K10 have the output of square wave at short time NG OK Check Q804,Q809 have the output of square wave at short time.
  • eMachines E191HQ | Service Guide - Page 39
    715G2510 1 AO(E191HQ&E181H) 1) No power Check L904 = 12V NG Check AC line volt 110V or 220V NG OK Check the voltage of C905 (+) Check AC input NG OK
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    2.) No Backlight Check F801=12V NG OK Check ON/OFF signal NG OK Check IC801 PIN12=15V NG OK Check adapter and F801 Check Interface board or main board Change on/off circuit Check IC801 PIN5 have triangle wave NG OK Change IC801 Check IC801 PIN9/PIN10 PWM wave NG OK Check IC801 Check Q802,
  • eMachines E191HQ | Service Guide - Page 41
    715G2852 2(E161HQ) 1) No power Check CN902 PIN4,5 = 5V NG Check AC line volt 110V or 220V NG OK Check the voltage of C907 (+) Check AC input NG OK Change F901, Check BD901, IC901 Check start voltage for the pin3 of IC901 NG OK Check R904, R932, R933, Change IC901 Check the auxiliary
  • eMachines E191HQ | Service Guide - Page 42
    2.) No Backlight Check F801=12V NG OK Check ON/OFF signal NG OK Check IC801 PIN12=15V NG OK Check adapter and F801 Check Interface board or main board Change on/off circuit Check IC801 PIN5 have triangle wave NG OK Check IC801 PIN9/PIN10 PWM wave NG OK Change IC801 Check IC801 Check Q802 Drain
  • eMachines E191HQ | Service Guide - Page 43
    Connector Information The following figure shows the connector locations on the monitor: Chapter 5 Pin No. 1. 2. 3. 4. 5. 6. 7. 8. 1 5 6 10 11 15 15 - Pin Color Display Signal Cable (D-sub) Description Red Green Blue RS232 DDC-Return R-Ground G-Ground B-Ground Pin No. 9.
  • eMachines E191HQ | Service Guide - Page 44
    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 Emachine office to order FRU parts for repair and service of customer machines. NOTE: To scrap or to return the defective parts, you should follow the
  • eMachines E191HQ | Service Guide - Page 45
    Exploded Diagram 45
  • eMachines E191HQ | Service Guide - Page 46
    Item 1 2 3 4 5 6 7 8 9 10 Descripiton BEZEL L19WA-8GEM-1 POWER LOGO POWER-LENS FUNCTION-BUTTON-R FUNCTION-BUTTON-L KEPC PANEL PWPC CBPC SPK Item 11 12 13 14 15 16 17 18 19 20 Descripiton SCREW SCREW MAIN FRAME REAR COVER HINGE ASS'Y SCREW SCREW STAND BASE FOOT 46
  • eMachines E191HQ | Service Guide - Page 47
    Part List Above picture show the description of the following component. Item Picture 1 Description Hinge&base 2 Back Cover 3 bezel 47
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    4 Shield 5 Panel 6 Power Board 7 Main board 48
  • eMachines E191HQ | Service Guide - Page 49
    9 CONN +5V D403 SM240A BAT54C D401 5VCC BKLT-VBRI BKLT-EN C_PANEL_INDEX Volume Mute R448 100R 1/16W 5% Volume# 2 +5V VCC3.3 R457 10K 1/16W 5% BKLT-VBRI R442 100R Date 05.Power Monday , July 07, 2008 OEM MODEL e-Machine TPV MODEL ACER PCB NAME 715G3213-A Sheet 5 of 5 Size B Rev
  • eMachines E191HQ | Service Guide - Page 50
    -04S ESD_5V VGA_G+ VGA_R+ C114 0.1uF/16V T P V ( Top Victory Electronics Co . , Ltd. ) G3213-A-X-X-2-080707 Key Component Date 02.Input Monday , July 07, 2008 OEM MODEL e-Machine TPV MODEL ACER PCB NAME 715G3213-A Sheet 2 of 5 Size B Rev A 称爹 50
  • eMachines E191HQ | Service Guide - Page 51
    POWER_KEY # MSCL MSDA R419 R465 R464 51 1K 1/16W 5% 19 NC 31 NC 30 C411 47pF C412 47pF 1 2 18 63 T6M 3 T6P 3 T7M 3 T7P 3 BL_ADJ 4 R414 R410 Volume# 4 EE_WP Mute# 4 WP Panel_ID# 4 120R 1/16W 5% LED_GRN MODEL e-Machine TPV MODEL ACER PCB NAME 715G3213-A Sheet 3 of 5 Size Rev
  • eMachines E191HQ | Service Guide - Page 52
    TCLK1M 2 TCLK1P 2 T3M 2 T3P for 1 channel LVDS E161Q and E181H CN405 PANEL_VCC CN403 23 24 21 22 19 20 17 18 15 16 13 14 PANEL_VCC 11 12 R434 C420 9 10 Date 04.Output Monday , July 07, 2008 OEM MODEL e-Machine TPV MODEL ACER PCB NAME 715G3213-A Sheet 4 of 5 52 Size A
  • eMachines E191HQ | Service Guide - Page 53
    Power board 715G2824 1C 2（E191W） D909 NC/31DQ10FC ! 2 BD901 NC/GBU408 4- +1 ! 33 4 1 - + FB904 BEAD 1 2 BD901A 2A 800V 2 C905 + 100uF/450V FB902 1206 0 ohm 80OHM 1 2 C938 NC/1500pF2KV R904 300K OHM 1/4W R905 300K OHM 1/4W C906 1500pF2KV R906 300K OHM 1/4W D901 FR103 4 1 L901
  • eMachines E191HQ | Service Guide - Page 54
    +16V ON/OFF DIM R808 10K 1/10W 1% Q802 PD TC 144W K R802 100R 1/8W Q801 PDTA144WK R809 1M 1/10W 5% R813 100R 1/10W 5% C802 1uF/16V D803 LL4148 R816 68K OHM 1% 1/10W C819 1uF / 16V Q803 PMBS3904 R817 1M 1/10W 5% R815 33K 1/10W C804 0.1uF/16V DTC R814 FB 75K 1/10W 1% R805 NC/4K7 1/10W
  • eMachines E191HQ | Service Guide - Page 55
    C611 100pF R606 5.6KOHM +-5% 1/10W + C604 100uF/25V C609 1uF/25V C601 0.47uF/16V C606 0.47uF/16V 10K 1/10W 5% R609 IC601 APA2069JITUL 8 7 6 SE/BTL VOLUME LOUTVDD 9 10 11 5 4 3 2 LINGND GND RIN- LOUT+ GND GND ROUT+ 12 13 14 15 1 BY PASS VDD 16 SHUTDOWN ROUT- R601 10K 1/10W 5% R610
  • eMachines E191HQ | Service Guide - Page 56
    715G2510 1 AO（E191HQ&E181H） 2 NC SG901 ! 4- BD901 +1 2KBP08M 3 ! L902 1 2 4 3 ! 7.0mH C902 0.001uF/250V C901 0.001uF/250V ! ! 2 L901 3 ! 1 4 4.0mH C903 ! 0.47uF/275V NC SG902 + C905 100uF/450V R904 300K 1/4W
  • eMachines E191HQ | Service Guide - Page 57
    +12V ON/OFF DIM J810 1 BEAD F801 2 0 1/4W Q805 PDTC144WK C807 0.1uF/25V R804 100 1/8W Q808 PDTA144WK C825 0.1uF/25V R827 100 OHM +-1% 1/10W Q806 PMBS3904 D817 LL4148WP C835 NC C842 0.1uF/25V R851 R802 NC 47KOHM +-1% 1/10W DTC D813 LL4148WP ㄏノ KA7500 癸郸 R859 4.7K 1/10W Q810 RK7002
  • eMachines E191HQ | Service Guide - Page 58
    0.47uF/16V 4 RIN+ 5 RIN- ROUT+ 20 2 ROUT- +5V R101 10K 1/10W +5V R102 10K 1/10W BY PASS 16 14 15 SHUTDOWN# FADE# SE/BTL# 19 18 VOLUME 13 NC 1 PGND 11 PGND 17 AGND R103 10K 1/10W C109 1uF/25V LOUT+ LOUT- ROUT+ ROUT- + C108 1uF/50V CN102 4 3 2 1 CONN 58 TPV(Top
  • eMachines E191HQ | Service Guide - Page 59
    715G2852 2（E161HQ ） +1 ! 2 3 BD901 KBP208G ! C902 1000pF 4- ! C901 1000pF + C907 100uF450V ! C938 NC R904 300K OHM 1/4W R905 NC R932 300K OHM 1/4W R906 NC R908 C906 1500pF2KV 100KOHM +-5% 2WS D900 FR107 ! C904 0.22uF/275V C911 0.1uF ZD906 RLZ22B 2 1 2 1 4 3 L901 ! 30mH ! C908
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    +12V ON/OFF DIM F801 0 OHM 1/4W Q805 PDTC144WK C807 0.1uF/25V R804 100R 1/8W Q808 PDTA144WK C825 0.1uF/25V R827 1K 1/10W 1% D817 LL4148 Q806 PMBS3904 C835 NC R851 5K1 1/10W C842 0.01uF R802 10K 1/10W 1% 1 2 3 2 Q801 PMBS3904 Q804 PMBS3906 1 Q811 PMBS3904 Q812 PMBS3906 1 2 D810 NC C802
  • eMachines E191HQ | Service Guide - Page 61
    1/10W 5% R603 10K 1/10W 5% C609 1uF/25V R601 10K 1/10W 5% C601 0.47uF/16V C606 0.47uF/16V + C604 100uF/25V IC601 8 7 SE/BTL LOUT- 9 10 6 5 4 3 VOLUME LINGND GND VDD LOUT+ GND GND 11 12 13 14 2 1 RIN- ROUT+ BY PASS VDD SHUTDOWN ROUT- 15 16 APA2069JITUL C612 0.1uF/16V C613 0.1uF
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E-machine
E191W
E191HQ
E181H
E161HQ
Service Guide