Page 2 - Service Guide Version and Revision; Version; Release
2 Service Guide Version and Revision Version Release Date Revision History Customer model TPV model A00 Sep-10-2009 Initial Release G195HQ T89AM6D8MXAFH2 T89AM5D8MXAFN2
Page 4 - Preface; Reorient or relocate the receiving antenna.
4 Preface Before using this information and the product it supports, please read the following general information. 1. This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION decided for Acer's "global" product offering. To better fit local market r...
Page 6 - Table of Contents
6 Table of Contents Chapter 1 Monitor Features ………………………………………… 7 Introduction ……………………………………… 7 Electrical Requirements ……………………………………… 8 LCD Monitor General Specification ……………………………………… 9 LCD Panel Specification ……………………………………… 11 Factory Preset Timing ……………………………………… 13 Monitor Block Diagram ………...
Page 7 - Monitor Features; Introduction; Scope; Chapter 1
7 Monitor Features Introduction Scope This short specification describes the electrical, optical and functional performance requirements for a 47cm (18.5”) TFT LCD color monitor with VGA&DVI compatible interface. Description The LCD monitor is designed with the latest LCD technology to provide a...
Page 8 - Electrical Requirements of G195HQ; Standard Test Conditions; Measurement systems
8 Electrical Requirements of G195HQ Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Warm up time ＞ 30 min. AC supply voltage 220V± 5 ％ , 50± 3 Hz Ambient temperature 20 ° C ± 5 ° C Humidity 50% ± 10% Display mode 1366 x 768, 60 Hz, al...
Page 9 - LCD Monitor General Specification
9 LCD Monitor General Specification LCD Panel Driving system TFT Color LCD Pixel pitch 0.3(H) x 0.3(V) Contrast Ratio 1000 : 1 (typ) Response time 5ms(Typ.). 8ms(max) Luminance of White 250 cd/m 2 (Typ.) Input Separate Sync. H/V TTL H-Frequency 30kHz – 80kHz V-Frequency 55-75Hz Viewing angle H:170°/...
Page 11 - LCD Panel Specification of G195HQ; General Specifications; Block Diagram; TFT LCD Module
11 LCD Panel Specification of G195HQ This specification applies to the 18.5 inch-wide Color a-Si TFT-LCD Module M185XW01.The display supports the WXGA - 1366(H) x 768(V) screen format and 16.7M colors (RGB 6-bits +Hi-FRC data). All input signals are 1-channel LVDS interface and this module doesn’t c...
Page 12 - Optical Specifications
Page 14 - Monitor Block Diagram; logic, brightness control logic and DDC.
14 Monitor 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 power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage....
Page 15 - Main Board Diagram
15 Main Board Diagram T89AM6D8MXAFH2 (Dual-Input Model) T89AM5D8MXAFN2 Flash Memory EN25F20 (U402) Panel Interface (CN301) Crystal 14.31818MHZ (X401) Key control Interface (CN402) Scalar IC TSUMU5PEHL-LF (Include MCU, ADC, OSD) (U401) D-Sub Connector (CN101) H sync V sync RGB DVI Connector (CN102) D...
Page 16 - Power Board Diagram
16 Power Board Diagram DIM EMI filter Start Resistor (R908) PWM Control (U901) Transformer AC input 14.5V ON/OFF Feedback Circuit Transformer (T801) MOSFET (Q803) Lamp 5V Bridge Rectifier and Filter Feedback Circuit Rectifier diodes Output Circuit PWM Control AM9000ES (U801) Power Switch (Q901) Phot...
Page 17 - Software Flow Chart
17 Software Flow Chart N Y 1 2 N Y 5 Y N 10 Y N 12 Y N 7 Y N 6 4 3 8 9 14 11 13 Y N 15 Y N 16 17 19 Y N 18
Page 19 - Main Board Layout; Symbol Description; WAFER
19 Main Board Layout 715G2883 1 6 Symbol Description Symbol Description U401 TSUM1PEL PQFP-100 TSUMU5PEHL-LF PQFP-100(Dual-Input Model) CN302 WAFER U701 AP1117E33L-13 CN701 CONNECTOR 9P 2.0 U106 AZC099-04S SOT23-6L CN402 CONN 6PIN 2.0 U103 AZC099-04S SOT23-6L CN101 D-SUB 15PIN VERTICAL CONN WITH SCR...
Page 20 - Installation; Steps
20 Installation To install the monitor to your host system, please follow the steps as given below: Steps 1. 1-1 Connect Video Cable a. Make sure both the monitor and computer are powered-OFF. b. Connect the VGA video cable to the computer. 1-2 Digital Cable (Only Dual-Input Model) a. Make sure both...
Page 22 - Operating Instructions; User Controls; AUTO; Chapter 2
22 Operating Instructions 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 video cable f...
Page 23 - Adjusting the OSD settings
23 eColor Management (OSD) Operation instructions Step 1: Press “ ”Key to open the Acer eColor Management OSD and access the scenario modes Step 2: Press “ ” or “ ” to select the mode Step 3: Press “ AUTO “ Key to confirm the mode and exit the eColor menu. Features and Benefits Adjusting the OSD set...
Page 27 - Machine Disassembly; G195HQ for maintenance.; The tool for disassembly is as follows:; Press the button remarked in green the remove the base.; Chapter 3
27 Machine Disassembly This chapter contains step-by-step procedures on how to disassemble the monitor- G195HQ for maintenance. The tool for disassembly is as follows: Screwdriver, Hexagonal screwdriver, Putty knife. Disassembly Procedure 1.Lay the monitor on a flat, soft and clean surface. 2.Press ...
Page 33 - Troubleshooting; Chapter 4
33 Troubleshooting This chapter provides troubleshooting information for the G195HQ: 1.Main Board 1) No Power Chapter 4 No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240 is normal Reinsert or check the power section Check if X401 oscillate wav...
Page 35 - ) Panel Power Circuit
35 3) Panel Power Circuit White screen Measure Q302 base is low level? X401 oscillate waveform is normal Check CN301 is solder and Q302, Q301 is OK? Check Correspondent component. Replace PANEL Check Correspondent component. Replace U401 OK OK OK Replace X401 OK NG NG NG NG Check reset circuit of U4...
Page 37 - OK
37 3. Power Board 1) No power Check CN902 PIN6, 7 = 5V Check AC line volt 110V or 220V Check AC input Check the voltage of C907 (+) Check bridge rectified circuit and F902 circuit Check start voltage for the pin8 of U901 Check R908 and Change U901 NG Check the auxiliary voltage is bigger than 11V an...
Page 39 - Connector Information; 5-Pin Color Display Signal Cable; Chapter 5
39 Connector Information D-sub connect and DVI connect: 15-Pin Color Display Signal Cable 24-Pin Color Display Signal Cable (Dual-Input Model) Chapter 5
Page 40 - FRU parts for repair and service of customer machines.; Chapter 6
40 FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of G195HQ. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). NOTE: Please note WHEN ORDERING FRU PARTS, that you shou...
Page 42 - Part List; Above picture show the description of the following component.; Picture Description; Panel
42 Part List Above picture show the description of the following component. Picture Description TPV Part No. Acer Part No. Main_frame A15G0933101401 A15G0933101301 (Dual-Input Model) 60.LJM0B.008 60.LJM0B.009 (Dual-Input Model) Bezel A34G1522AEMA1B0130 60.LJM0B.001 Panel 750GLU185X1414N000 LK.18005....
Page 45 - Schematic Diagram; Main Board; Chapter 7
45 Schematic Diagram Main Board T89AM6D8MXAFH2 (Dual-Input Model) F B109 300 OH M 1 2 R X2N 2 ESD _VCC 2 D D C 2_SC L C 1100. 047uF C 1020. 047uF GN D POWER H _Sy nc R 129 10R 1/ 16W 5% D SU B_SCL D D C 1_SDA R105 100R 1/ 16W 5% D SU B_G- 2 ESD_VC C 1 C BPC 9M6AF QH E Ac er G185H D ual Only B 2 6 Tu...
Page 53 - Power board
53 Power board R 904220 OHM 2W +14. 5V C 9160. 001uF C927 0. 047uF R9252. 43K OHM 1% 1/ 10W C 900 0. 0022UF C 909N C/ 0. 22uF / 275V Q901F MA07N 65GX C 915 D904F R 103 R930 100 OH M 1/ 4W R 9201K 1/ 10W 1% ! + C 9201000U F 25V - + BD901 KBP208G 2 1 3 4 R 90810K OH M 1/ 4W +-5% Q904 2SD 1207T H S3H E...
Page 55 - Key board
55 Key board ZD 0 0 5 NC /U DZ S N P 5 .6 B LBADC2 AUTO LBADC1 LBADC1 ZD 0 0 2 NC /U DZ S N P 5 .6 B VO L - E C OL OR SW006 SW 1 2 4 3 5 C0 1 1 NC Z D007 N C/ U DZ SN P5. 6B 1 2 GN D ME N U POWER (GND) C0 0 9 NC R002 2Kohm 1/ 10W +/ -1% CN001 SW002 SW 1 2 4 3 5 LED001 LED 1 2 3 4 CN 001 CONN 123456 ...
