Table of Contents
Advertisement
IC BLOCK DIAGRAM
QQ
IC, GMS3977RAA98F
3 7 63 1515 0
4 fsc out
CHAR bias
Dosc out
AFCLPF
AFCOSC
Vcc(OSD)
Vss(OSD)
TE
L 13942296513
COMP IN
C.Rotary SW
H.Amp SW
D.V SYNC
A.H.SW30
V.H.SW30
DRUM PWM
CAP.PWM
CTL OUT
www
.
http://www.xiaoyu163.com
<OSD Section>
COLOR BURST
4 fsc in
53
4/2 fsc
GENERATOR
COLOR PHASE
52
SYNC.SIGNAL
GENERATOR
C.Vin
43
SYNC.TIP
Vref
44
CLAMP
CHARACTER LUMINANCE CONTROL
46
OUTLINE LUMINANCE CONTROL
Dosc in
50
DOT CLOCK
GENERATOR
51
CONTROL CIRCUIT
GENERATOR
DISPLAY POSITION
CONTROL
47
AFC
48
42
49
<SERVO Section>
30
4 HEAD SPECIAL PLAY
28
CONTROL CIRCUIT
29
D.V SYNC
27
GEN.CIRCUIT
23
HEAD SWITCHING
GEN.CIRCUIT
24
D.PG
39
AMP
SPEED ERROR
D.FG
38
DETECT
AMP
PWM
26
25
PWM
D.V CFG
DIVIDE
C.FG
40
CIRCUIT
REC
PB
ASM
DIVIDE
CIRCUIT
CTL FB
PB-CTL
37
CTL1
34
x
ao
CTL2
35
y
CTL3
36
i
CTL+
31
CTL-
32
http://www.xiaoyu163.com
8
BLUE SIGNAL/
LUMINANCE GEN.
H
V
Vchar
Vec
DISPLAY DOT
CONTROL
OUTLINE CONTROL
SHIFT REGISTER
DISPLAY
FONT DATA ROM
CONTROL
(128 CHARACTER)
DISPLAY DATA
RAM(240BYTE)
INTERNAL BUS
HD
SYNC.SEPARATOR
CIRCUIT
Q Q
3
SERVO PART
6 7
1 3
SYNC.SEP.
V.SYNC
CIRCUIT
REC:ON
RES
A/D TRIG.
(HSW)
PHASE ERROR
EP
DIGITAL
DETECT
FILTER
OUT
ES
SPEED ERROR
CORRECTION
DIGITAL
FILTER
OUT
FILTER
DIGITAL
FILTER
SPEEED ERROR
DETECT
PHASE ERROR
DIGITAL
DETECT
FILTER
(NTSC)
PB
REC
(PLA)
ASM
ATF
REF30X
VISS
DUTY I/O
DETECT
DUTY
DETECT
u163
.
REC-CTL
43
2 9
9 4
2 8
BLUE VIDEO
SIGNAL
BLUE BACK
SUPERIMPOSE
45
C.Vout
ACCESS
H.SYNC
H/V SEPARATOR
C.SYNC
V.SYNC
1 5
0 5
8
2 9
9 4
SYSTEM CLOCK
REFERENCE
REFERENCE
SIGNAL
SIGNAL
ANALOG
A/D
PORT
CONVERTER
X-VALUE
CORRECTION
REC-CTL
m
GEN.CIRCUIT
REC
ASM
co
9 9
2 8
9 9
Advertisement
Table of Contents
