The Controller Cannot Be Connected; The Brightness Of White Color Is Lower Than The Brightness Of Red, Green, Or Blue Color; The Brightness On The Black Display Side Increases - Sony TRIMASTER EL BVM-E171 Service Manual

3-2-5.

The Controller Cannot Be Connected

Check the following:
• Check whether cables are connected correctly.
• Check whether the NETWORK switches on the unit and the controller are set correctly. (Refer to the operating
instructions.)
• Check whether network settings (including IP address) are made correctly. (Refer to the operating instructions.)
3-2-6. The Brightness of White Color Is Lower than the Brightness of Red,
Green, or Blue Color
Factor
An abnormality of the panel power line
(VOFS1) is considered.
3-2-7.

The Brightness on the Black Display Side Increases

Factor
An abnormality of the panel power line
(VDDWS) is considered.
BVM-E171
Remedy
Check whether the fuse (F8607) is blown.
Check whether the 2.5 V output from IC8606 (shunt regulator) is stable by single-color
display.
Check whether the 1.5 V output from pin 6 of IC8605 (OpAmp) is stable by single-
color display.
Remedy
Check whether the fuses (F8701, F8704) are blown.
3-5