NV-GS80EG/EF/E/EP/EB/EK/EE, NV-GS85GC/EE, NV-GS88GK
VIDEO SIGNAL PROCESS II BLOCK DIAGRAM
VIDEO SIGNAL PROCESS II BLOCK DIAGRAM
REC VIDEO SIGNAL
PB VIDEO SIGNAL
REC AUDIO SIGNAL
PB AUDIO SIGNAL
MAIN P.C.B
CYLINDER UNIT
DBR (0-3)
IC3201 (FORMATTING/EQUALIZER)
FP24
7
FP24
5
FP24
6
FP24
4
8
27
26
31
30
33
28
29
32
GCA
DRIVE
CH1
HEAD
AMP
CH2
HEAD
AMP
AGC
DET
(FROM SAFETY TAB SW)
S-TAB ON(L)
LOGIC
MODULATOR
/DEMODULATOR
14
15
16
17
18
19
AMP
AMP
LPF
LOGIC
TP3922
IC5001 (HEAD AMP)
CH 1
HEAD
CH 2
HEAD
FROM SYSTEM
CONTROL
BLOCK DIAGRAM
TO/FROM VIDEO
SIGNAL PROCESS I
BLOCK DIAGRAM
43
1
11
AGC
AMP
6
35
39
41
RESET(L)
READ(H)
VAL
27MHz
CLOCK
L8
10
K8
K3
D3
E1
3
AMP
A/D CONVERTER
AMP
A/D CONVERTER
REC-C CONTROL
REC CLOCK
EQ HOLD
REC CONTROL
HEAD SW PULSE 2
HEAD SW PULSE 1
PB(H)
REC ON/OFF CONTROL
EQUALIZER
ATF DET
BPF
AGC CONTROL
VITERBI
J7
J3
L9
J6
K6
K9
H6
MICROCONTROLLER
INTERFACE
RESET(L)
L5
RESET(L)
A3
C11
D10
B11
TO/FROM VIDEO
SIGNAL PROCESS I
BLOCK DIAGRAM
D11,E9,E11,F8
HEAD SW PULSE 1
VAL
READ(H)
27MHz CLOCK
ADDA (0-3)
A9,
A10,
B9,
B10
IC3301 (VIDEO SIGNAL PROCESS)
VIDEO
JK7101
FP6501
15
29
+
BUFFER
CLAMP
BUFFER
GCA
GCA
LUMA
CHROMA
FROM VIDEO
SIGNAL PROCESS I
BLOCK DAGRAM
VIDEO
19
18
LPF
LPF
FP41
15
FRONT P.C.B
TP3203
PB Mode (SP)
2.0 Vp-p
1 V
2 ms
V1
0.30 Vp-p
0.1 V
5 ms
V1
11