Sony DVP-F11 Service Manual page 78

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7. Grid Check ( ↑ button: Grid Check Mode)
In this mode, arbitrary one grid of FL display tube lights up. (The
anodes of the grid concerned all light up.) To shift the grids, use
the click shuttle on the set. For the models not having the click
shuttle, the DVD Remocon having the click shuttle can be used
instead.
During this mode, any one grid always lights up.
8. Anode Check ( → button: Anode Check Mode)
In this mode, arbitrary one anode of FL display tube lights up.
(All grids of the anode concerned all light up.)
Staring from P1, rotate the click shuttle clockwise, and the anodes
shift such as P2, P3 .... The anodes return to P1 following the last
anode. During this mode, one anode of all grids always lights up.
For the models not having the click shuttle, the DVD Remocon
having the click shuttle can be used instead.
9. LED Control
In this mode, LEDs, one by one, light up by pressing the ↓ button.
The "CD", "VIDEO CD" and "DVD" LEDs on the set can be
[STOP]
controlled with the button.
button is pressed, CD → VIDEO CD →
[STOP]
Each time the
DVD → CD, VIDEO CD, DVD light up → CD, VIDEO CD, DVD
go off are repeated.
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5. TROUBLESHOOTING
1. Test Mode is not activated
With the set assembled in the front panel, the Test mode does not
become active if any button was pressed by any reason.Under this
condition, the power is not turned on even in the normal status.
(The set is kept in Standby status = Red LED is kept on) Not only
the buttons are inactive, but also a signal from Remocon is not
accepted. To check this condition, with the self check port (pin yl
of IF CON) kept in "Low" status, supply the AC power, so that the
Test mode is forcibly activated. On the board, short the lands where
SELF is printed. The IF CON checks the self check port only after
the power on reset (only when AC is supplied; not in Standby sta-
tus). If any button was pressed, the button name should be dis-
played on the FL display tube. Though no button is pressed this
time, display of other than NOTHING implies that the button was
pressed. However, the set will go in Standby status immediately
unless the FFC (pin qj) connected to the MB-85 board is discon-
nected in advance.
2. Power is not turned on
1 Red (STANDBY) LED does not light up when AC was sup-
plied. The power (EVER 5 V) is not supplied.
X201 is oscillating.
Loose connection of the connector between FL board and FR
board.
2 Red (STANDBY) LED is kept on though POWER button was
pressed. Any button is kept pressed.
PCHECK (IF CON pin uj) is over 0.1 V.
Q Q 3 Green LED lights up when POWER button was pressed, but
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red LED lights up again after several seconds. PCHECK (IF
CON pin uj) is abnormal. (Slow rise time from 0.1 V to 1.5 V.
Voltage must be less than 1.5 V)
SYSTEM CONTROL does not operate normally.
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