Parker KVP2021P05, Service Manual

Page: 12 / 34

1 0
MAIN IC
NOM 8370-A-18A
ICs functional description
UOC OM8370
SYMBOL PIN DESCRIPTION
STAND BY output. 1 In STAND BY mode, high level (Power OFF).
For Power ON this pin will be reduced to low.
SCL 2 I
2
C-bus clock line
SDA 3 I
2
C-bus data line
TUNING 4 NC
P3.0/NTSC SW 5
NC
KEY 6 Control keys input
VOL 7 Sound Volume control PWM output
MUTE 8 Sound mute output
VSSC/P 9 Digit ground for µ-controller core and periphery
BAND1 10
NC
BAND2 11
NC
VSSA 12 Analog ground of teletext decoder and digital ground of
TV-processor
SECPLL 13
PLL decoupling
VP2 14 2
nd
supply voltage TV-pro8V)