JVC RX-9010VBK Service Manual page 12

RX-9010VBK
4. Self-diagnose
To enter the self-diagnose mode, put the power plug in the socket while pressing SETTING key and UP key
together simultaneously, then turn the power ON. With the UP/DOWN key operation, DSP microcomputer,
ROM No.of system microcomputer as well as working status of DSP can be displayed for five seconds.
While the working status is being displayed, the followings items can be switched with the UP/DOWN key
operation.
VERSION of system microcomputer
Local microcomputer CH01
Local microcomputer CH3
When the power is turned OFF, the self-diagnose mode will be released.
During the self-diagnose mode, the STANDBY LED is turned ON .
FL transient display will be carried out as follows. When the transient display is not carried out,
normal display/workings are carried out.
S 0 0 1 1
2 0 0 0 1 2 0 9 0 0
D 0 0
D 0 1
D 0 2
D 0 3
D 0 4 1 1
2 0 0 0 1 2 0 9 0 0
1-12
Local microcomputer CH0
Local microcomputer CH2
Local microcomputer CH4
(flashing ON for one second then OFF for three seconds)
FL Display
Information on VERSION of system microcomputer (IC901)
Example : VER1.1 2000/12/9
Display of communication information on DSP microcomputer (IC581)
Display of communication information on DIR AK4112A (IC551)
Display of communication information on DSP XCA56367 (IC501)
Display of communication information on CODEC AK4527 (IC571)
Information on VERSION of DSP microcomputer (IC581)
Example :VER1.1 2000/12/9
Upper 1 2 3 4 5 digits
Lower 1 2 3 4 5 6 7 8 9 10 digits