Signal Flow Diagrams - Sharp VL-WD250S Service Manual

VL-WD250S/H/E
VL-WD450S/H/E

11. SIGNAL FLOW DIAGRAMS

11-1. EE MODE FLOW (VIDEO)
117 118
CAM ENGINE
68 72 75
ZYP
164 168
174
VIO ENGINE
IC4401
249
Y
1
VIDEO I/O IC1401
9 14 12
SEP-Y OUT
SEP-C OUT
VIDEO OUT
11-2. FLOW IN REC MODE (VIDEO)
175
VIO ENGINE
REC/PB ENGINE
B TO B
CAM ADIN
120 127
IC202
77 84 85 87 92
ZCP
175 182 184 187 189 192
254 43 48 53
C
R G
7
19 6 8
IC2800
24 22 20
R G
LCD Panel
ZYP
ZCP
182 184 189 192 164 168
187 174
IC4401
137 140 130 121 124
131 127
CDY
CDC
50 57 40 47
IC452
243 244
REC GATE
REC DATA
SC3301
HEAD AMP
WAVEFORM DIAGRAM
(DURING COLOR BAR RECORDING)
IC4401 170pin ZYP3 Input
CH1=1V
DC P*10
259 264 269
Y
R-Y B-Y
B
2
48 1
IC8802
16 14 11
R G
B B
VF LCD Panel
IC4401 184pin ZCP3 Input
CH1=1V
DC P*10
WAVEFORM DIAGRAM
(DURING COLOR BAR RECORDING)
40
IC4401 249pin Y/YC Output
CH1=500mV
DC P*10
5ms/d
IC4401 124pin CDY3 Output
1
CH1=1V
DC P*10
IC4401 134pin CDC3 Output
5ms/d
CH1=1V
DC P*10
5ms/d
IC4401 254pin C Output
1
20µs/d
CH1=500mV
DC P*10
IC452 244pin Rec GATE Output
5ms/d
CH1=1V
DC P*10
1
IC452 243pin Rec DATA Output
CH1=1V 5ms/d
DC P*10
1
20µs/d
1
5ms/d
1
1
1