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5 FAN NG
When a fan does not function, this NG occurs.
Shut down after OSD display for 30 seconds from the NG detection.
* FAN NG detection functions only in case of following.
• When FAN CONTROL setting is maximum
• When sensor temperature of TEMP3 is more than 30°C with FAN CONTROL
setting is AUTO.
(even if connector is left when does not turn the FAN, this unit does not work.)
Abnormality to expect
• Disconnect a junction connector between FAN (A6) and MX AUDIO Assy (A7).
• Disconnect a connector between MX AUDIO Assy (A5) and RGB Assy (R8).
• FAN forced stop by an alien substance involving it.
6 Module microcomputer NG
When a main microcomputer failed in communication with a module
microcomputer, this NG occurs.
Shut down after OSD display for 30 seconds from the NG detection.
* However, this communication NG may occur by the standby state.
Abnormality to expect
• Open / Short of communication line in the Assy.
• Disconnect a connector between RGB Assy (R3) and DIGITAL VIDEO
Assy (D3).
• Writing defectiveness of module microcomputer (IC1207) software.
7 Wide microcomputer NG
When a main microcomputer failed in communication with a wide
microcomputer, this NG occurs.
Shut down after OSD display for 30 seconds from the NG detection.
Abnormality to expect
• Open / Short of communication line in the Assy.
• Software writing defectiveness of wide microcomputer (IC5601).
• Writing defectiveness of outside Flash ROM (IC5602) on the
wide microcomputer.
8 RGB-IIC communication NG
When a main microcomputer failed in IIC communication, this NG occurs.
Shut down after OSD display for 30 seconds from the NG detection.
* However, this communication NG may occur by the standby state.
Abnormality to expect
• Open / Short of communication line in the Assy.
• SLOT and the insertion of the SLOT junction PC Board are incomplete.
Notes: There is the case that it becomes the following symptom except NG
when the SLOT insertion is incomplete.
• Audio of INPUT3 and 4 are not output.
• Do not switch from INPUT3 to 5 (SLOT function).
• Video signal of INPUT1 and 2 are not appear.
9 Audio NG
When DC component added on the speaker output line, this NG occurs.
After the NG detection, shut down immediately.
Abnormality to expect
• Disconnect a connector between MX AUDIO Assy (A5) and RGB Assy (R8).
• Short-circuits between + and - of C8615 and C8622.
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