Error Count Messages Definition; Level 3 - Component Repair To Curcuit Boards; System Operation Theory; Theory Of Circuit Operation - BenQ MP611 Product Service Manual

Chapter 5 Error Count Messages Definition
Error Count
LAMP FAIL COUNT
LAMP FAN ERROR COUNT
BALLAST FAN ERROR COUNT
BLOWER ERROR COUNT
DIODE1 ERROR COUNT
DIODE2 ERROR COUNT
DIODE3 ERROR COUNT
LAMP BOX SENSOR OVER
TEMPERATURE COUNT
FRONT SENSOR OVER
TEMPERATURE COUNT
FAN IC I2C ERROR

Level 3 - Component Repair to Curcuit Boards

Theory of Circuit Operation

Chapter 1 System Operation Theory
1.1 Overview
The Projector system consists of display function, cooling function, lighting function, safety protection function, and User
interface control function and power control function. An ARM processor embedded in the DDP ASIC is used to execute
system firmware. The ARM processor serves as the master controller of the projector and provides the link between the
display screen and end-user controls such as a keypad and IR remote control. These inputs can be processed in the ARM
Definition
LAMP OFF
LAMP FAN SPEED ERROR
BALLAST FAN SPEED ERROR
BLOWER FAN SPEED ERROR
LAMP BOX SENSOR ERROR
FRONT SENSOR ERROR
MCU WATCHDOG RESET
LAMP BOX TEMPERATURE ERROR
N/A
N/A
130
Specification
DETECT LAMPLIT
SPEED OVER ± 20%
SPEED OVER ± 20%
SPEED OVER ± 20%
DETECT DIODE1
DETECT DIODE2
DETECT WTD
TEMPERATURE OVER 65
℃
N/A
N/A