Acer Monitor K202HQL
LIFECYCLE EXTENSION GUIDE

Contents
Table of Contents
Important Safety Notice………………………………………………………………………3 1. Exploded Diagram…………………………………………………………………………..4 2. Wiring connectivity diagram …………………………………………………………..5 3. Mechanical Instruction ……………………………………………………………………7 4. Disassembly and Assembly SOP ……………………………………………………8 5. Troubleshooting ……………………………………………………………………………12 6. FRU List ………………………………………………………………………………………..14
Safety Notice Any person attempting to service this chassis must familiarize with the chassis and be aware of the necessary safety precautions to be used when serving electronic equipment containing
high voltage

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Important Safety Notice
Product Announcement: This product is certificated to meet RoHS Directive and Lead-Free produced definition. Using approved critical components only is recommended when the situation to replace defective parts. Vender assumes no liability express or implied, arising out of any unauthorized modification of design or replacing non-RoHS parts. Service providers assume all liability.

Qualified Repairability:
Proper service and repair is important to the safe, reliable operation of all series products. The service providers recommended by vender should being aware of notices listed in this service manual in order to minimize the risk of personal injury when perform service procedures. Furthermore, the possible existed improper repairing method may damage equipment or products. It is recommended that service engineers should have repairing knowledge, experience, as well as appropriate product training per new model before performing the service procedures.
NOTICE:
! To avoid electrical shocks, the products should be connect to an authorized power cord, and turn off the master power switch each time before removing the AC power cord.
! To prevent the product away from water or explosed in extremely high humility environment.
! To ensure the continued reliability of this product, use only original manufacturer’s specified parts.
! To ensure following safety repairing behavior, put the replaced part on the components side of PWBA, not solder side.
! To ensure using a proper screwdriver, follow the torque and force listed in assembly and disassembly procedures to screw and unscrew screws.
! Using Lead-Free solder to well mounted the parts.
! The fusion point of Lead-Free solder requested in the degree of 220°C.

1.1 Product Exploded Diagram

1. Exploded Diagram

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Item ODM DESCRIPTION 1 ASSY BZL 2 PCBA CTRL 3 FFC WIRE 4 LCDM 5 PCB SPS BD 6 FFC LVDS 7 PCB IF BD 8 SCRW 9 SCRW 10 ASSY SHD 11 SPK 12 SCRW 13 TAPE 14 ASSY RC 15 SCRW 16 ASSY CLMN 17 ASSY BASE 18 TAPE

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2. Wiring connectivity diagram
There are four types of wiring diagrams for model K202HQL. The wiring connectivity position will be different according to the ACTUAL PCBA connector position. Please base on different SKU refer to below diagram. NOTE: INF BD= Interface Board, PWR BD=Power Board, CTRL BD= Control Board 1. SKU without USB, without HDMI/DP

2. SKU without USB, with HDMI/DP

3. SKU with USB, without HDMI/DP

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4. SKU with USB, with HDMI/DP

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3. Mechanical Instruction
Tools Required List the type and size of the tools that would typically can be used to disassemble the product to a point where components and materials requiring selective treatment can be removed. Tool Description: – working table – Screw-driver: Philips-head screwdriver, Hex-head screwdriver – Knife – glove – cleaning cloth – ESD protection

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4. Disassembly and Assembly SOP
K202HQL

4.1 Disassembly Procedures
Preparation before disassemble 1.Clean the room for disassemble 2.Identify the area for monitor 3.Check the position that the monitors be placed and the quantity of the monitor ;prepare the area for material flow;
according to the actual condition plan the disassemble layout 4.Prepare the implement, equipment, materials as bellow:
1) working table 2) Screw-driver: Philips-head screwdriver, Hex-head screwdriver 3) knife 4) glove 5) cleaning cloth 6) ESD protection
After unplugging the power cord, the power board still have power energe. Please pay attention when disassembling/assembling Power BD.

S1 Disassemble the RC(Rear Case), stand
and base

Before Disassembling & Assembling, monitor need to be put on the sponge and the Insulation glove must be wore during the process.
Disassemble Stand and Base from the RC(Rear Case). Unlock RC screws. Disassemble RC from monitor.

S2
Disassemble SHD
PICTURE 1

Tear down AL-Tape off SHD(Shielding) as picture 1. Unlock the Hexagonal screws and the DP screw as picture 2.
PICTURE 2

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S3

Tear off the tape on the lamp wire and extract the lamp wire form the P/BD(Power

Disassemble the lamp wire Board) as the picture.

S4
Disassemble LVDS CABLE and CTRL BD
PICTURE 1

Tear off the tape, pull out the FFC as picture 1. Pull the CTRL BD-FFC out of the PCBA and the CTRL BD, tear off the tape and disassemble the CTRL BD-FFC
PICTURE 2

S5
Disassemble the MF from panel.

Tear off the tapes, take out the Panel and the CTRL BD of the MF

S6
Disassemble I/F BD, P/BD and SPK from SHD.
PICTURE 1

Unlock all screws. Disassemble the I/F BD from the SHD and extract the P/BD wire. Extract the FFC LVDS from the I/F BD. Disassemble the P/BD from the SHD. Disassemble SPK.
PICTURE 2

I/F BD

P/BD

NOTE: Circuit boards >10 cm² has been highlighted with the yellow rectangle as above image shows. Please detach the Circuit boards and follow local regulations for disposal.

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4.2 Assembly Procedures

Preparation before assemble: 1.Clean the room for work 2.Identify the area for material 3.Prepare the implement, equipment, materials as bellow

1) working table

2) Screw-driver

3) Knife

4) glove

5) cleaning cloth

6) ESD protection
After unplugging the power cord, the power board still have power energe. Please pay attention when

disassembling/assembling Power BD.

S1 Assemble the MAIN board,
power board and SPK.

Before Disassembling & Assembling, monitor need to be put on the sponge and the Insulation glove must be wore during the process.
Insert the FFC to the I/F. Insert the DP-Wire to the I/F BD and the Power BD. Insert the Power BD-Wire and SPK-Wire to I/F BD, Place the I/F BD and the Power BD to main SHD. Lock all screws as the picture. Put Mylar on the Power BD.

P/BD

P/BD

I/F BD

I/F BD

S2 Assemble the ASSY TRIM
PICTURE 1

Insert the C/B-FFC to C/B as circle frame, and insert them into the BZL Assemble the panel on the BZL Stick Mylar on C/B FFC as square frame and Insert the C/B-FFC to the PCBA as circle frame.
PICTURE 2

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S3 Assemble the lamp wire

Insert the big connector of the lamp wire to the P/BD . Stick 2 tape to fasten the lamp wire and one AL-Tape on SHD as the picture.

S4 Assemble LVDS cable

Insert the LVDS cable to the Panel and stick one tape on LVDS cable.

S5 Assemble SHD
PICTURE 1

Lock the Hexagonal screws and the DP screw as picture 1. Use jig to put the SHD in correct position on Panel. Take off the jig and stick two AL tapes as picture 2.
PICTURE 2

S6

Assemble the RC with screw.

Assemble RC, stand and base Assembly the Stand and the Base to Monitor

NOTE: Circuit boards >10 cm² has been highlighted with the yellow rectangle as above image shows. Please detach the Circuit boards and follow local regulations for disposal.

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TROUBLESHOOTING

5. Troubleshooting

Before sending your LCD monitor for servicing, please check the trouble-shooting list below to see if you can self-diagnose the problem.

(VGA Mode)
Problems Current Status

Remedy

LED ON

Using OSD, adjust brightness and contrast to maximum or reset to their default settings.

No Picture

LED OFF

Check the power switch.
Check if AC power cord is properly connected to the monitor.

Check if video signal cable is properly connected

LED displays amber at the back of monitor.

color

Check if the power of computer system is ON.

Unstable Picture

Check if the specification of graphics adapter and monitor is in compliance which may be causing the input signal frequency mismatch.

Abnormal Picture

Using OSD, adjust RESOLUTION, CLOCK, CLOCK-PHASE, H-POSITION and V-POSITION with non-standard signals.

Display is missing, center shift, or too small or too large in display size

Using OSD, in case of missing full-screen image, please select other resolution or other vertical refresh timing.
Using OSD, in case of missing full-screen image, please select other resolution or other vertical refresh timing.
Wait for a few seconds after adjusting the size of the image before changing or disconnecting the signal cable or powering OFF the monitor.

Abnormal Sound (Only Audio-Input model) (Optional)

No sound, or sound level is too low

Check the audio cable with the host PC is connected.
Check if the volume setup of the host PC is in minimum position and try to raise the volume level.

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(HDMI/DP Mode)

Problems

Current Status

LED ON

Remedy
Using OSD, adjust brightness and contrast to maximum or reset to their default settings.

No Picture

LED OFF

Check the power switch.
Check if AC power cord is properly connected to the monitor.

LED displays amber color

Check if video signal cable is properly connected at the back of monitor.
Check if the power of computer system is ON.

Abnormal Sound (Only Audio-Input model) (Optional)

No sound, or sound level is too low

Check the audio cable with the host PC is connected.
Check if the volume setup of the host PC is in minimum position and try to raise the volume level.

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6. FRU List
This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of ACER K202HQL. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization).
Please note that WHEN ORDERING FRU PARTS, you should c heck the most up-to-date information available on your regional web or channel. For whatever reasons a part number change is made, it will not be noted on the printed Service Guide. For AUTHORIZED SERVICE PROVIDERS, your office may have a 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 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 local government ordinance or regulations on how to dispose it properly, or follow the rules set by your regional office on how to return it.

Category LCD
BOARD
IF BD P/ BD

ACER DESCRIPTION

Description

PART NO.

LED LCD Panel AUO 19.5’W HD+ None Glare LCDM19.5W M195RTN01.1 M195RTN01.1 0A-Z68 LF Z V00/0A AUO
200nit 5ms

KL.19505.002

MAIN BD D+S AUO

PCBA IF BD MI V206HQL AUO 1D+S

55.LY6M3.008

POWER BOARD

PCBA SPS BD MI V206HQL AUO SPK

55.C3NM3.003

CTRL BD

CONTROL BOARD

PCBA CTRL BD SMD V226HQL

55.LY0M3.005