ATEC-PANDA 2188 - 7.2 N201 LA76814 Function: I²C bus control and NTSC small signal processing

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7.1.2 Keys of the TV set: MENU, TV/AV, VOL-, VOL+, CH-, CH+
1) Continuously press [MENU] key, the menu will change as follows:
a). TV mode
b) AV mode
7.2 N201 LA76814 Function: I
2
C bus control and NTSC small signal processing
Symbol PIN Function description Symbol PIN Function description
AUDIO OUT 1 Sound frequency output FBP IN 28 Sandcastle pulse forming
FM OUT 2 Sound detection output VCD I REF 29 Reference current for
horizontal frequency
PIF AGC 3
Inter medium
frequency amplifying
AGC
CLOCK OUT 30 4MHz clock output
RF AGC OUT 4 Radiation frequency
amplifying AGC
NC 31 No used
PIF IN 5
Picture
intermedium
frequency input
OSD FIL 32 OSD circuit filtering
PIF IN 6
Picture
intermedium
frequency input
GND
•
CCD/H
•
33 GND (IH_DL)
GND
•
IF
•
7
GND (
intermedium
frequency amplifying)
GND
•
X-RAY
•
34
VCC
•
VIF
•
8 Power supply
(
intermedium
frequency
amplifying)
NC 35 No used
FM FIL 9 Sound detection filtering APC FIL 36 Color APC filtering
AFT OUT 10 AFT output ACC FIL 37 ACC filtering
BUS DATA 11 Data bus XIAL 38 3.58MHz Crystal oscillator
BUS CLOCK 12 Clock bus NC 39 No used
ABL 13 ABL SELECT V OUT 40 Output of selection of
internal/external video
R IN 14 Character red input GND
•
V/C/D
•
41 GND
(video/color/deflection)
G IN 15 Character green input EXT V IN 42 External video signal input
B IN 16 Character blue input VCC
•
V/C/D
•
43 Power supply
(video/color/deflection)
BL IN 17 Character blanking input INT V IN 44 Internal video signal input
VCC
•
RGB
•
18 Power supply (RGB) BLACK STR 45 Black level extend filtering
R OUT 19 Red output VIDEO OUT 46 Video detection output
G OUT 20 Green output APC FIL 47 Video detection APC
filtering
B OUT 21 Blue output VCO COIL 48 Video detection
PICTURE
→
SETUP
→
PIC-ENH
→
PRESET
→
FAV
PICTURE
→
SETUP
→
PIC-ENH
→
Normal operation