Philips DFR9000, Service Manual

Page: 10 / 78

4. Display test
Purpose: This test is used to check the standby-LED, the
driving circuits and the display for short-circuits,
open circuits or other defects.
5. Key test
Purpose: This test is used to check the keys and rotaries on
the set and the reaction on commands from the
remote control.
1)
x ..........5=RC5, 6=RC6
yy.........system address
zzz .......command code
y e K y a l p s i D
N O - Y B D N A T S 1 Y E K
S U O I V E R P 2 Y E K
T X E N 3 Y E K
U N E M M E T S Y S 5 Y E K
D N U O R R U S 6 Y E K
E L B E R T / S S A B 7 Y E K
P U E C R U O S P U C R S
N W O D E C R U O S N W O D C R S
P U E M U L O V P U L O V
N W O D E M U L O V N W O D L O V
L O R T N O C E T O M E R z z z y y x C R Y E K ) 1
. t s e t - y e k e h t t i x e o t t e s e h t n o > K O < s s e r P
MAIN MENU
Y
RC “4”
pressed?
RC “OK”
pressed?
N
Y
N
N
Y
Display key-code
(see table 1)
Key Test
Display shows
“--”
Key
pressed or
rotary
turned?
MAIN MENU
Display Test
Display shows
Test pattern 1
Standby-LED is
blinking
RC “3”
pressed?
RC “OK”
pressed?
N
Y
N
Y
Display Test – Test pattern 1
2-5
www.freeservicemanuals.info 13/10/2016
Published in Heiloo Holland