Sony UP-895 Service Manual page 70

MA-99(2/2)
VIDEO IN
R1,R2
75Z
TERMINATION 1/2
TO DIP-SW(S300)
RY1
8
10
7
GND
5
3
VIDEO-OUT 6
SELECTOR4
CN10
Q1
RELAY THRUE/EE
DRIVE
Overall (2/2)
IC1
5
1 7 15
VIN
3
3
SYNCOUT
FL1,Q51 SELECTOR1
TRAP FILTER
Q50
AMP Q13
PEDESTAL
FL2,Q52 CLAMP
TRAP FILTER
Q11,Q12
CLAMP PULSE
GENERATOR
AGC CIRCUIT
Q40
SYNC
GENERATOR
TO SYSTEM CONTROLOR(IC304)
1/2
NT/PAL
1/2 nTRAP
1/2
nCSYNC
1/2 nAGC
1/2 CONTRAST
1/2 BRIGHT
TO FRONT PANEL(CN14)
IC5(1/3)
15
SELECTOR3
1/2
TO SYSCON(IC304)
Overall (2/2)
10 Q220 1
CNTROUT IN
IC2 BUFFER IC6
VIDEO AMP 1 VIDEO AMP 2
11
CNTR
Q14
INTEGRATION
CIRCUIT Q200 Q17
CONTRAST
GENERATOR AMP
3
IC4 7 12
VIDEO 14
AMP 13 RV5
CONTRAST
1 6 5 ADJUST
IC5(1/3)
RV2 RV3
GAIN REF SELECTOR2
ADJUST ADJUST
RV4
AGC OFF
ADJUST
Q174
HSYNC GENERATOR
2
1
9-2 9-2
11-4
D[7-0]
3 Q6 L2,L3 Q7 21
OUT VIN
AMP LPF AMP
IC500
A/D CONV
19
VRT 14
23 CLK
VTB
RV6 Q16
BRIGHT
ADJUST AMP
Q21
REFERENCE
GENERATOR
8-1
Q173 20 VOUT D[7-0]
AMP
IC502
D/A CONV
12
CLK
16 9
REF BLK
R538,R539,R540
REFERENCE
GENERATOR
AD[7-0] 1/2
TO MEMORY&HEAD CONTROLOR(IC501)
CLKOUT 1/2
TO MEMORY&HEAD CONTROLOR(IC501)
PULSE 1/2
TO MEMORY&HEAD CONTROLOR(IC501)
MA-99(2/2)
OVERALL (2/2)
UP-895/(E)