Service manual

42
VL-FD1U
12-3. FLOW IN PB MODE (VIDEO)
WAVEFORM DIAGRAM
(DURING COLOR BAR PLAYBACK)
12-4. FLOW IN REC MODE (AUDIO)
WAVEFORM DIAGRAM (1.6 kHz SINE WAVE)
IC1602 Output
12
CH1=1V
DC P*10
10µs/d
1
IC3401 39pin PBDATA Input
IC3401 54pin Input
IC3404 3pin Input
IC3404 5pin Input
CH1=500mV
DC P*10
5ms/d
1
CH1=500mV
DC P*10
5ms/d
1
CH1=500mV
DC P*10
5ms/d
1
CH1=1V
DC P*10
5ms/d
1
MIC L
MIC R
IC601
IC1602
AUDIO I/O
IC452
REC/PB ENGINE
ADC/DAC
AUD-L ADIN
AIDAT
AUD-R ADIN
REC GATE
REC DATA
same as in
REC s
y
stem
39
38
20
21
3
6
12
212
116 117
CDY
CDC
ADIN
A/D
ZYP
IC452
REC/PB ENGINE
IC3401
EQ/PLL
B TO B
IC3404
IC4401 to VIO ENGINE
same as in EE system
IC201
CAM ENGINE
ZCP
39
3
10
21 12
154
29
93 94
31 34 38
39
42 48
235 240 248 249
250 252 260 264
83
88
97
104
13
32
SC3301
HEAD AMP
44
44
17
155 162
PB_DATA
PB_DATA
IC3403
PB-CK
4
2