Sony HCD-VX55 Service Manual page 53

IC303 NJM2209M (VIDEO BOARD)
14 13 12
LPF
LOWER
LIMITER
(2)
1 2 3
IC302 NJM2255M (VIDEO BOARD)
8 7
SATURATION ADJ
(COLOR MAIN)
HUE ADJ
SATURATION ADJ
(COLOR BURST)
1
2
11 10 9
SECONDARY LOWER CLAMP
DIFFERENTIATION LIMITER ( SYNC
GAIN ADJ (1) CHIP
SWITCH
CONTROL
4 5 6
6 5
H
L
4
3
IC304 BA7665FS
MUTEA 1
8
INA
2
GND
3
)
GND
4
GND
5
N.C. 6
20k
7
INB 7
MUTEB 8
CHROMA MUTE
IC509 PCM1727
XT1 1
2
PGND
VCP 3
NCKO 4
RSV 5
SCKO3 6
ML 7
MC
8
9
MC
RSTB 10
VOUTR 11
AGND 12
(VIDEO BOARD)
MUTE
75Ω
6dB
75Ω
6dB
75Ω
6dB
(VIDEO BOARD)
384fs
CLOCK MANAGER
•
DUAL PLL
POWER
SUPPLY
DATA INPUT
INTERFACE
MODE
CONTROL
8 TIME OVER
SAMPLING DIGITAL
FILTER
•
FUNCTION
CONTROL
MULTI LEVEL MULTI LEVEL
BPZ
∆Σ ∆Σ
CONTROL
MODULATOR MODULATOR
5 LEVEL 5 LEVEL
DAC
CR LPF CR LPF
•
OUTPUT OUTPUT
AMP AMP
16 VCC1
15 OUTA1
14 OUTA2
13 VCC2
12 MIXOUT1
MIXOUT2
11
10 N.C.
9 OUTB
24 XT2
23 DGND
22 VDD
21 SCKO1
20 SCKO2
19 LRCK
AUDIO
18 DATA
17 BCK
16 ZERO
OPEN
15 CAP
14 VOUTL
DAC
•
13
VCA
53