Grundig GMI8500, Руководство по обслуживанию

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7.4. VIDEO BLOCK DIAGRAM
MIX
D REC
VIDEO HEAD CTL
LOGIC
CT.SW2
FP5001
7 6
HEAD L1
CT.SW1 CT.SW3 CT.SW4 HA.SW
FP5001
H.SW
8 7
FP5001
11
RE ON
FP5001
12
HEAD L2
H.SW
H.A.SW
CT.SW CT.SW
FE
2
FP5001
1
FP5001
HEAD R2
10
FP5001
9
FP5001
CT.SW CT.SW
33
FROM SYSTEM CTL
FE CTL
FROM CAMERA
AGC
C G.CTL
REC Y CTL
ROTARY ERASE DRIVE
REC C CTL
Y G.CTL
IC5001 (REC/PLAY HEAD AMP)
Q5001 (HEAD SW)
FROM SYSTEM CTL
Q5002 (HEAD SW)
21
3 2 4 5
47
26 24 19 20 23 16 14 11 13 18 17
35
ST 4.8V
FROM POWER
Q5003
FP5001
4
FP5001
5
HEAD R1
H.SW
HEAD AMP
2
3 6
4 1
5 5
6 3
2
4 1
FROM IC6001
EE LP
H SW
FROM IC6001
YNR
GCA
CCD LPF
DOC
HSS
DET AGC
LIM
NC
HPF
MAIN LPF
HPF LIM
NIL NLDE
SUB LPF
FM DEM
LIM ENV DET
AGC DET RF AGC
ATT
AMP
MUTE
Y/C MIX
CLP
MAIN EMPH
FM MOD FO DET
W/D CLIP
BPF
NTSC
PAL
COMB AMP
CCD BPF
4.43 BPF
BURST DOWN
BURST UP
MAIN BM
ACC
629KHz LPF
ACC DET
KILLER
ID
X2
VXO
PHASE ROTATION
1/4 1/4
SUB BM
1/40
F.DET
SIDE LOCK
AFC
AFC
VCO
4.43MHz
FROM CAMERA
VTR SYNC VIDEO OUT
CAMERA Y IN
ART
TRAP
C3305,C3306 L3303
TO CAMERA
11
9
29 16 27
FILTER
IC3302
20 25 30
1 3
12
FROM CAMERA
TO LCD/ MONITOR
FROM IC6001
14 16
FILTER
IC3302
10
MESECAM
PAL
EE VV
SP LP
VV
EE
EE VV
82
77
79
VV
EE
FH
+
EE
VV
EE
VV
EE
VV
Y+C
C
VV EE
EE VV
VV
EE
EE
VV
53
48
46
44
56
2
Y
41 36
C
VV
EE
49
P.B:Y REC:Y+C
Y
C
SP/LP
EE/ VV/ TRICK
QR3308 QR3311
QR3310
QR3309
:VIDEO MAIN SIGNAL PATH IN REC MODE
:VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE
IC3301 (VIDEO SIGNAL PROCESSOR)
H
H
H H
7.5. MONITOR BLOCK DIAGRAM
:VIDEO MAIN SIGNAL PATH
FP901
23
4
FP901
5
FP901
6
FP901
3
FP901
7
FP901
19
FP901
20
FP901
21
FP901
17
FP901
16
FP901
15
FP901
24
FP901
12
FP901
STH2 (SOURCE STRAT PULSE2) OEH (SOURCE ENABLE) STH1 (SOURCE STRAT PULSE1) VIDEO-R VIDEO-G VIDEO-B CPH1 (SAMPLING1) CPH2 (SAMPLING2) CPH3 (SAMPLING3) STV2 (GATE STRAT PULSE2) STV1 (GATE STRAT PULSE1) OEV (GATE ENABLE) U/D (SCAN SW)
GATE DRIVE CIRCUIT
CPV (GATE SCAN CLOCK)
MONITOR LCD PANEL
SOURCE LINE GATE LINE TFT COM TERMINAL LCD CELL
SOURCE DRIVE CIRCUIT
FP901
13
R/L (SCAN SW) Q2H
FP901
22
M.N KILLER H SYNC(E)
DEV
H COUNTER
H DEC PHASE SHIFT V DEC COUST DOSY
BLACK DEC
RGB SW
Q901 (OPEN :ON)
QR905 (FACEF :OFF)
HALL IC
MAGNET CHIP
LCD PANEL
SIDE CASE
ON/OFF: FACTING FORWARD/NORMAL ON/OFF:OPEN/CLOSE
SIDE CASE
LCD PANEL
MAGNET CHIP
HALL IC
IC6003-21
IC6003-206
TO SYSTEM CTL.
FP902 FP902
5 2
11 12
18 17
FP903 FP903
FP601 FP601
+ -
+ -
- +
+ -
- +
+ -
20
21
22
29
30
31
32
54 43 37 35 34 28 27 26 18 17
16
FROM VIDEO
LOAD SCLK
FROM SYSTEM CTL. FROM CAMERA
2 3
X901 4.43MHz
Q602
AMP
LCD VIDEO
48 49 51 50 59 63
HSS
VCO
PH-SET
LATCH
SHIFT-RES
DEC
CL
DL
CCA
CLAMP
TRAP
DL
B.P.F.
ACC
ACC DET
PAL CU PAL SW
HILL DET
APC DET
VXO
DEMOD
FLAT
DL
L.P.F.
EXT/INT SW
GEA
MATRIX
CLAMP
OSD S/H
CONTRAST
BRIGHT
GAMMA
LTN
DEV AMP
POS POS
(8 bit 16ch D/A for EVR)
+
Q901
QR902
NON REC DATA
1- 4 GENE
IC901(LCD DRIVE)
ABC
D
A B C D E F G H I
E F G H I J K L M N O
K J L M N O P
P
H L
18