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Page 30
MODEL: WD-57831 / WD-65831 / WD-73831
73” Lamp Troubleshooting Flow Chart
Lamp
Visual Check
• Install Lamp Cover with no Lamp
• Monitor Ballast spark gap.
• Press "POWER'
• Spark gap arc?
Press
"POWER"
Ballast
DC Supply?
Check
PWB-POWER
Circuit
Problem
Replace
Lamp
• H for 5 sec.
• L for 10 sec.
• H for 1 sec>
• Stays Low
PL 1to4=340v
CJ3 pin 3=5VS
Replace
Ballast
• H for 4 sec.
• L for 10 sec.
• Repeats
several times
Replace
Lamp
Install Lamp
& Lamp Cover
Check
Ballast
Striking
Replace
Lamp
Check
LAMP-EN
(CJ3 pin 4)
Damaged
Yes
No
Yes
Pulses
No
No Pulse
Pulses
Yes
PWB-ENG-PWR
PWB-INTERFACE
Code 34
Code 34
Code 57
Code 57
J3 Connector
Pin 1 = 12V
Pin 3 = 5V
Pin 5 = 3.3V
Pins 7-9-11-13 = 2.5V
Check
PWB-ENG-PWR
PWB-POWER
Replace
Engine
NG
Open
Continuity
DVI-20 to CJ3-4
Code 61
Code 61
Check
Engine
Power
NG
OK
OK
Check
DVI Cable & PWB-DM
Code 66
Code 66
Yes
Code
66
Code
66
Содержание WD-57831
Страница 2: ......
Страница 29: ...MODEL WD 57831 WD 65831 WD 73831 Page 29 73 Models Lamp Lamp Control Circuitry ...
Страница 53: ...Page 53 MODEL WD 57831 WD 65831 WD 73831 MAIN POWER SUPPLY ...
Страница 55: ...Page 55 MODEL WD 57831 WD 65831 WD 73831 POWER DISTRIBUTION ...
Страница 56: ...MODEL WD 57831 WD 65831 WD 73831 Page 56 PWB SIGNAL VIDEO PATH ...
Страница 57: ...Page 57 MODEL WD 57831 WD 65831 WD 73831 PWB DM Video Path ...
Страница 58: ...MODEL WD 57831 WD 65831 WD 73831 Page 58 Sound Select Circuitry ...
Страница 59: ...Page 59 MODEL WD 57831 WD 65831 WD 73831 Sound Signal Path ...
Страница 60: ...MODEL WD 57831 WD 65831 WD 73831 Page 60 Overall Control Circuitry ...
Страница 61: ...Page 61 MODEL WD 57831 WD 65831 WD 73831 Command input Circuit ...
Страница 62: ...MODEL WD 57831 WD 65831 WD 73831 Page 62 Lamp Control 57 65 Models 57 65 Engine Protect Cricuitry ...
Страница 63: ...Page 63 MODEL WD 57831 WD 65831 WD 73831 Lamp Control 73 Models 73 Models Engine Protect Circuitry ...
Страница 64: ...MODEL WD 57831 WD 65831 WD 73831 Page 64 Auto Input Detection ...
Страница 65: ...Page 65 MODEL WD 57831 WD 65831 WD 73831 Short Protect Circuit ...