NEC DTA-14V4THS, Service Manual, Page: 33 / 55

12 12
SYMBOL PIN DESCRIPTION
IFIN1 23 IF input 1
IFIN2 24 IF input 2
IREF 25 Reference current input
VSC 26 vertical sawtooth capacitor
TUNERAGC 27 tuner AGC output
AUDEEM 28 audio deemphasis
DECSDEM 29 decoupling sound demodulator
GND2 30 ground 2 for TV processor
SNDPLL 31 narrow band PLL filter
SNDIF 32 n.u.
HOUT 33 horizontal output
FBISO34 flyback input / sandcastle output
AUDEXT 35 external audio input
EHT0 36 EHT/Overvoltage protection
PLLIF 37 IF PLL loop filter
IFVO38 IF video output
VP1 39 main supply voltage TV-processor
CVBSINT 40 internal CVBS input
GND1 41 ground 1 for TV-processor
CVBS/Y 42 external CVBS/Y input
CHROMA 43 chrominance input (SVHS)
AUDOUT 44 audio out
INSSW2 45 2nd RGB insertion input
R2IN 46 2nd R input
G2IN 47 2nd G input
B2IN 48 2nd B input
BCLIN 49 beam current limiter input
BLKIN 50 black current input
R0 51 RED Output
G0 52 GREEN Output
B0 53 BLUE Output
VDDA 54 analog supply of Teletext decoder and digital supply of TV-Processor (3.3V)
VPE 55 OTP programming supply
VDDC 56 digital supply to core (3.3V)
OSCGND 57 oscillator ground supply
XTALIN 58 crystal oscillator input
XTALOUT 59 crystal oscillator output
RESET 60 reset
VDDP 61 digital supply to periphery (3.3V)
Audio Mute 62 Port 1.0 : Audio mute output (PushPull )
Power 63 Port 1.1 : Power output (PushPull )
IR in 64 Interrupt input 0 : R/C Infrared input
12
IC DESCRIPTION
APPENDIX