Sharp 15JF-25S Service-Handbuch - Seite 18

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SOUND
TRAP
TUNERAGC
(32)
27
37
38
31
23
VISION IF
ALIGNMENT-FREE
IFIN
24
PLL DEMOD.
AGC/AFC
VOLUME CONTROL
VIDEO AMP.
40
VIDEO SWITCH
VIDEO IDENT.
CVBS/Y
42
VIDEO FILTERS
43
CHROMA
REF
REF
13
PAL/SECAM/NTSC
DECODER
(32)
30
41
18
H/V SYNC SEP.
39
+8V
14
H-OSC. + PLL
H
19
15
17
Block diagram TDA935X/6X8X PS/N2 with mono intercarrier sound demodulator
44
(20) 29 28
35
60 55 59
58 57
(32)
DEEMPHASIS
ENHANCED
AUDIO SWITCH
80C51 CPU
(AVL)
AGC CIRCUIT
NARROW BAND
ROM/RAM
PLL
DEMODULATOR
LUMA DELAY
BASE-BAND
PEAKING
BLACK STRETCH
DELAY LINE
H-DRIVE
V-DRIVE +
nd
2
LOOP
V
GEOMETRY
H-SHIFT
21
25
26
22
34
16
33
HOUT
V-DRIVE
SCL
SDA
2
12
54 56 61
3
4
9
2
I
C-BUS
1/10 PAGE
TRANSCEIVER
VST PWM-DAC
MEMORY
I/O PORTS
H
TELETEXT
TELETEXT/OSD
CVBS
ACQUISITION
V
DISPLAY
SYNC
COR
R
G
CONTR/BRIGHTN
OSD/TEXT INSERT
CCC
WHITE-P. ADJ.
R G B
RGB/YUV INSERT
Y
RGB/YUV MATRIX
(EW GEOMETRY)
SATURATION
U
YUV/RGB MATRIX
V
(20)
46
47
36
EWD
R/V G/Y B/U BL
EHTO
+3.3 V
B BL
RO
51
GO
52
B0
53
49
BCLIN
50
BLKIN
48
45