Sony VPL-CX11 Service Manual page 65

74VHC240MTCX (IC402)
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
M52347FP (IC407)
CLAMP+ CLAMP+ HD– HD+ VD+
TIMING V. POL H. POL OUT V OUT OUT OUT
CC
20 19 18 17 16 15 14 13
CLAMP EDGE V TIME
GEN SW GATE
LOGIC
LOGIC
SYNC H H V
SEP SHAPE DET SHAPE
1 2 3 4 5 6 7 8
H. STATE V. STATE CLAMP GREEN GND COMP/H COMP/H V IN
SW IN IN DET
M52758FP (IC404)
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
LP2985IMSX (IC418, 428)
V
IN
1
ON/OFF 3
1.23V
V
REF
5 V
OUT
4
OVER CURRENT/
OVER TEMP
PROTECTION
2
VPL-CX11
74VHC221AMTCX (IC405)
1Rext/ 1
Vcc Cext Cext 1Q
16 15 14 13
Q
Q
CLK
1 2 3 4
1A 1B 1 1Q
V S/S V S/S CLR
OUT IN
12 11
CXA1875AM (IC406)
V. SYNC
SEP
16 15 14 13 12
LEVEL
LATCH
CONVERTER
V
DET
LEVEL
CONVERTER
2
I C DECODER
9 10
POWER
V DET V TIME GATE
ON
SW RESET
LATCH LATCH LATCH
– DAC DAC DAC
+
VCC
REG
AMP AMP AMP
1 2 3 4 5
24LC21AT/SN (IC429)
SDA 5
I/O MEMORY
VCLK 7 CONTROL CONTROL XDEC
LOGIC LOGIC
6
SCL
VCC 8
VSS 4
1 2 3
NC NC NC
B B
TC74LCX74FT (IC408)
2 14 13 12 11
2Q CLR 2B 2A
VCC
12 11 10 9
D
CK
CLK
Q
PR
D
Q
CK
CLR
1 2 3
5 6 7 8
2Q 2 2Rext/ GND
Cext Cext 74VHC125MTCX (IC411)
1 OE 1
2
1A
11 10 9
1Y 3
OPEN COLLECTOR
LEVEL
CONVERTER
2 OE 4
2A 5
LATCH LATCH
6
2Y
DAC DAC
GND 7
AMP AMP
MK1714-0IRT (IC413)
VDD GND
6 7 8
3,4 7,8,13,17
5
S4 5
PD
18
LOW EMI
12
ENABLE
INPUT CRYSTAL X1
2
OR CLOCK
CRYSTAL
H/V
OSCILLATOR
GENERATOR
1
X2
11
EEPROM
XSEL
ARRAY
PAGE LATCHES
S-80842ANNP (IC419)
YDEC
SENSE AMP
V OO 2
R/W CONTROL
V REF
V SS 4
6-11 6-11
B Board Waveforms (1/4)
10 9 8
1
VIDEO
PR
Q
Q
500 mVp-p (H)
CLR
2
VIDEO
Q
Q
500 mVp-p (H)
GND
3
VIDEO
4 5 6 7
500 mVp-p (H)
4
VIDEO
14 VCC
13
4 OE
12
4A
3.5 Vp-p (V)
5
11 4Y VIDEO
10 3 OE
3.5 Vp-p (H)
9 3A
8 3Y
S-80828ANNP (IC420)
S3 S2
V
6 9 OO 2
PLL CLOCK
MULTIPLIER AND
OUTPUT
10 CLOCK OUT
SPREAD
BUFFER
SPECTRUM
CIRCUITRY
V
REF
OUTPUT
20 REF
BUFFER
V 4
SS
19
OE (BOTH OUTPUTS)
LMV358MMX (IC430)
OUTPUT 1 1
2
INPUT 1 (–)
1 OUT
INPUT 1 (+) 3
GND 4
B Board Waveforms (2/4)
6
VIDEO
4.0 Vp-p (16.67MHz)
1 OUT
8 VCC
7 OUTPUT 2
6 INPUT 2 (–)
5 INPUT 2 (+)