Philips PET741/37 Service Manual page 20

7.0 ELECTRICAL DIAGRAM
CIRCUIT DIAGRAM-KEY
TP1
KEY1
TP2
KEY2
TP3
KEY3
TP4
KEY4
KEY4
GND
KD1 SS14
KEY1
1 2
KD2 SS14
KEY2
1 2
KD3 SS14
KEY3
1 2
KS1 LEFT
KS5 KS6 KS7
MENU DOWN RIGHT
KS2 go on
KS8 KS9 KS10
AV MODE OPTION MENU
KS3 go down
KS11 KS12 KS13
SETUP BRIGHT STOP
KS4 UP