Hitachi CL2554AN Service Manual page 19

LED 2
VSSA
SEC PLL
VP2
DECDIG
PH2LF
PH1LF
GND3
DECBG
AVL/EWD
VDRB
VDRA
IFIN1
IFIN2
IREF
VSC
TUNERAGC
SIFIN1
SIFIN2
GND2
SIF AGC
REF0
HOUT
FBISO
QSS out
EHT0
PLLIF
IFVO
VP1
CVBSINT
GND1
CVBS/Y
CHROMA
AMOUT
INSSW2
R2IN
G2IN
B2IN
BCLIN
BLKIN
R0
G0
B0
VDDA
VPE
VDDC
OSCGND
XTALIN
11 port 0.6 ( 8mA current sinking capability )
12 analogue ground of teletext decoder and digital ground of TV
processor
13 SECAM PLL decoupling
14 2nd supply voltage TV-processor
15 decoupling digital supply of TV-processor
16 phase-2 filter
17 phase-1 filter
18 ground 3 for TV-processor
19 bandgap decoupling
20 East / West drive output
21 vertical drive B output
22 vertical drive A output
23 IF input 1
24 IF input 2
25 reference current input
26 vertical sawtooth capacitor
27 tuner AGC output
28 SIF input 1
29 SIF input 2
30 ground 2 for TV processor
31 AGC sound IF
32 n.u.
33 horizontal output
34 flyback input / sandcastle output
35 QSS intercarrier output
36 EHT/Overvoltage protection
37 IF PLL loop filter
38 IF video output
39 main supply voltage TV-processor
40 internal CVBS input
41 ground 1 for TV-processor
42 external CVBS/Y input
43 chrominance input (SVHS)
44 n.u.
45 2nd RGB insertion input
46 2nd R input
47 2nd G input
48 2nd B input
49 beam current limiter input
50 black current input
51 RED Output
52 GREEN Output
53 BLUE Output
54 analogue supply of Teletext decoder and digital supply of TV-
Processor (3.3V)
55 OTP programming supply
56 digital supply to core (3.3V)
57 oscillator ground supply
58 crystal oscillator input
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Service manual CL2554AN / CL2854AN