6-8. VERSION INFORMATION6-10. IF CON SELF DIAGNOSTIC FUNCTION
### Version Infomation ###1. IF-94 BOARD (IF CON) TEST MODE
The front board test mode is the IF CON self diagnostic mode.IF con.Ver.x.xxx(xxxx)
The IF CON can diagnose the functions of the front panel boardsGroupxx
that the IF CON controls. Normally, the IF CON makes a serial
SYScon.Ver.x.xxx(xxxx)communication with the SYSTEM CONTROL and operates fol-
Modelxxlowing the commands from the SYSTEM CONTROL, but in the
Region0xTest mode, the IF CON operates independently from the SYS-
TEM CONTROL.
Servo DSP Ver: x.xxx
In the Test mode, the following functions can be checked. AVD ucode Ver: xxxxxxxx
1. Button function OPT TYPE : x LASER
2. Remote commander receiving functionExit : RETURN
3. SYSTEM CONTROL-IF CON serial communication
The ROM version, region code, OPT type, etc. are displayed if
4. Click shuttle function[5] is selected in the Test Mode Menu.
5. Fluorescent display tube lighting checkThe parenthesized hexadecimal number in the version number field
Grid checkindicates the checksum value of the ROM.
Anode check
6. LED control function
Note : After down loading ROM data, sometimes it happens that
checksum is not the same as that of ROM data which has
In the Test mode, the set operates same as usual, except voltagebeen down loaded. In such a case, go back to the menu
monitoring, communication monitoring, display of fluorescentand select O0. Syscon Diagnosis�, then select O1. All� in
display tube, and LED control.O2. Version�. If the result of this operation does not give
1. The routine that monitors +3.3 V (P-CONT) of MB-105 boardan agreement, it must be either Down Load error or ROM
is not provided.
2. The monitoring timer for serial communication with the SYS-error.
TEM CONTROL is not provided. The set is not placed in the
6-9. VIDEO LEVEL ADJUSTMENT
Standby mode, even if the communication with SYSTEM
CONTROL is normal.
3. Display of fluorescent display tube (normally, display is madeOn the Test Mode Menu screen, selecting [6] displays color bars
following the commands from SYSTEM CONTROL)for video level adjustment. During display of color bars, OSD dis-
4. LED control (normally, control is made following the com-appears but the menu screen will be restored if pressing any key.
mands from SYSTEM CONTROL)
2. OPERATION OF SELF CHECK MODE
The Self Check mode is the function to conduct the basic test to
the FL display and DVD panel section.
2-1. Self Check Mode Transition Processing
At the AC Power ON after IF CON (IC404) was reset, the input to
10pin (SELF CHECK) is judged and if OLow� is entered, the main
unit transits to the Self Check mode. In this port input judgment,
the result of 3-time attempts must be same (assuming that the MB-
105 and AV-64 boards are not connected). While pressing thex key
on the main unit with the IF CON in STANDBY mode, enter
[ RETURN]O ? [DISPLAY] (or [SET UP]) on the remote com-
mander, and the unit transits to the Self Check Mode. The Self
Check mode terminates when the IF CON transits to the STANDBY
mode.
6-12 |
ACEC
SONY
