3-1. Selecting the Mode for Service-related
3-1.1. Actions
Select diagnostic mode (service path check mode), protection history display mode, 232C standby clear
mode, Operation Info mode or TUNER STEP mode.
3-1.2. Starting up
While holding down buttons "
ZONE SELECT
" and "
BACK
" simultaneously, press the power button to
turn on the power.
Select the desired mode using the "
CURSOR
f
/
d
" button, then press the "
ENTER
" button to conrm.
3-1.3. Displaying and Selecting Each Mode
The information shown on the display switches each time the "
CURSOR
f
/
d
" button is pressed.
Press the "
ENTER
" button to set the currently displayed mode and restart the device.
q
L1
–1.SERVICE CHECK
L2
2.PROTECTION
Service Path Check Mode：See "DIAGNOSTIC MODE"
The Video and Audio paths can be checked.
This function is convenient for conrming problem paths in the product and checking the
paths after repairing.
w
L1
1.SERVICE CHECK
L2
–2.PROTECTION
The protection history can be checked.
e
L1
2.PROTECTION
L2
–3.RS232C RESET
Switches from 232C standby mode to normal standby mode.
r
L1
3.RS232C RESET
L2
–4.OP INFO
Operation Info for the unit can be checked.
t
L1
4.OP INFO
L2
–5.TUNER FRQ SET
Enables the reception frequency STEP of the ANALOG TUNER to be changed.
3-1.4. Canceling the selected mode
Press the power button to turn off the power.
154
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
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