Sharp 15JF-25S Service Manual page 18

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