清洁投影机
服务站收到客户的投影机，首先拆机清洁灰尘，再复现故障
This document is the intellectual property of Acer Inc, and was created for demonstration purposes only. It may not be modifi ed, organized or re-utilized in any way without the express written permission of the rightful owner.
Acer Group
目录
检测设备
进入工厂模式 测试条件 测试时间的设置 投影机坏点标准 测试检测步骤 其他 典型故障排除 投影机除尘
This document is the intellectual property of Acer Inc, and was created for demonstration purposes only. It may not be modifi ed, organized or re-utilized in any way without the express written permission of the rightful owner.
维修检测时间
故障状况 正常维修 故障未显 自动断电 2 4 6
Acer Group
拷机时间（小时）
灯泡启动时间设置（灯泡开关时间间隔）
Lamp Lamp On Lamp Off 时间（分） 50 10
This document is the intellectual property of Acer Inc, and was created for demonstration purposes only. It may not be modifi ed, organized or re-utilized in any way without the express written permission of the rightful owner.
Acer Group
投影机坏点标准（P7290为例，不同机型有差异）
投影机屏幕A、B区域划分
不同机型的坏点标 准，见维修手册
序号 1 2 3 4 5 6
故障现象 亮点 暗点 亮斑 暗斑 不稳定的像素 临近的暗点
条件 黑色背景 白色背景 灰色10 蓝色60 白色和黑色背景 白色和黑色背景
标准 A+B=0 A+B≤5 A+B≤10 A+B≤10 A+B≤1 A+B=0
Acer Group
工厂模式（维修模式）
开机 1 投影仪加电
按方向键
2 按“POWER→左→左→菜单”
维修模式
3 维修模式中选择选项
按确认键
4 确认模式,按“EXIT”退出。
退出
This document is the intellectual property of Acer Inc, and was created for demonstration purposes only. It may not be modifi ed, organized or re-utilized in any way without the express written permission of the rightful owner.
Acer Group
检测设备
个人电脑（能输出XVGA信号） DVD播放器多制式(NTSC / PAL / SECAM制式), ”必须带“S-Video”、”混合 端口”和“HDMI”端口。 HDTV片源（720P,1080i)。 测试软件Eizo-test 1.6.30.0 Minolta CL-100亮度测量仪 投影机测试信号源Eizo-test（可以通过PC 运行输出测试图像）
This document is the intellectual property of Acer Inc, and was created for demonstration purposes only. It may not be modifi ed, organized or re-utilized in any way without the express written permission of the rightful owner.
Acer Group
3，暗点
输出1024 x 768@60Hz全白图像，如右侧图
检查：是否有暗点 标准：A+B ≤5
This document is the intellectual property of Acer Inc, and was created for demonstration purposes only. It may not be modifi ed, organized or re-utilized in any way without the express written permission of the rightful owner.
Acer Group
6，聚焦测试
输出1024 x 768@60Hz 测试软件：Eizo-test 如右侧图
标准：距离屏幕1.9M，检查聚焦，检查全屏幕，图
像清晰，图像边缘锐利（通过调节，在角上的的字 体，能够辨别。
This document is the intellectual property of Acer Inc, and was created for demonstration purposes only. It may not be modifi ed, organized or re-utilized in any way without the express written permission of the rightful owner.
Acer Group
2，亮点
输出1024 x 768@60Hz全黑图像，如右侧图 检查：是否有亮点
标准：无亮点
This document is the intellectual property of Acer Inc, and was created for demonstration purposes only. It may not be modifi ed, organized or re-utilized in any way without the express written permission of the rightful owner.
Acer Group
4，亮斑
输出1024 x 768@60Hz 灰色10图像，如右侧图 检查：是否有亮点
标准：A+B ≤10
This document is the intellectual property of Acer Inc, and was created for demonstration purposes only. It may not be modifi ed, organized or re-utilized in any way without the express written permission of the rightful owner.
Acer Group
5，暗斑
输出1024 x 768@60Hz
蓝色10图像，如右侧图
检查：是否有暗点 标准：A+B ≤10
This document is the intellectual property of Acer Inc, and was created for demonstration purposes only. It may not be modifi ed, organized or re-utilized in any way without the express written permission of the rightful owner.
更换部件后需测试检测项目
“V”为对应测试检测项目
Acer Group
更换部件 主板 Firmware 色轮 灯泡 EDID 灯泡驱动（高压板） 版本升级 色轮索引 重新设置灯泡时间 OSD重新设置 V V V V V V V
EDID
重新写灯泡使用时间 设置默认语言 WAVEFORM DOWNLOAD
Acer Group
测试准备
• 恢复投影机的出厂设置 • 亮度:黑暗的房间小于5.0 流明 • 检测距离:1.8~2.5M。 • 屏幕大小:60英寸对角线 • 在修理完每台投影机，必须拷机测试
This document is the intellectual property of Acer Inc, and was created for demonstration purposes only. It may not be modifi ed, organized or re-utilized in any way without the express written permission of the rightful owner.
Acer Group
7，色彩性能
输出480p, 720p, 1080p
测试图像：Eizo-test 检查：各种颜色是否饱满、纯净。 标准：1，颜色显示正常 2，各种颜色中不能有线条闪烁出现 3，如果出现不正常的情况，请进入维修 模式，进行色轮索引调整
Acer Group
投影机检测流程和标准
以acer投影机P7290为例This document is the intellectual property of Acer Inc, and was created for demonstration purposes only. It may not be modifi ed, organized or re-utilized in any way without the express written permission of the rightful owner.