Read Sharp 66GS-62 (serv.man9) Service Manual online
29
66GS-62H
ICs ADITIONAL INFORMATION: VCT3811 (IC1001)
Absolute Maximum Ratings
Symbol
Parameter
Pin Name
Min.
Max.
Unit
T
A
Ambient Operating Temperature
−
65
°C
T
C
Case Temperature (PSDIP64)
−
115
°C
T
C
Case Temperature (PMQFP128)
−
115
°C
T
S
Storage Temperature
−40
125
°C
P
TOT
Total Power Dissipation
−
1400
mW
VSUP
x
Supply Voltage
VSUP
x
−0.3
6
V
V
I
Input Voltage, all Inputs
−0.3
VSUP
x
+0.3
1)
V
V
O
Output Voltage, all Outputs
−0.3
VSUP
x
+0.3
1)
V
V
IO
Input/Output Voltage, all Open Drain Out-
puts
puts
−0.3
6
V
Block diagram of the VCT 38xxA (shaded blocks are optional)
Video
Front-end
Comb
Filter
Color
Decoder
Display
Processor
Video
Back-end
Panorama
Scaler
4
3
4
12
31
2
I
2
C Master
16 kB
Text RAM
Text RAM
3 kB
OSD
OSD
96 kB
CPU ROM
CPU ROM
TPU
DMA
CPU
24 IO Ports
Watchdog
2 CapCom
2 Timer
15:1 Mux
10-bit ADC
10-bit ADC
8-bit PWM
Audio
3
2
Clock
Oscillator
1 kB
CPU RAM
CPU RAM
XTAL1
XTAL2
VIN
AIN
Px
y
ADB, DB, CB
RGBOUT
RGBIN
VE
R
T
PR
O
T
HFLB
SE
N
S
E
I
2
C
XR
E
F
HOUT
VR
D
VR
T
SG
N
D
Color, Prio
MSync
I
2
C
VSUPAB
VS
U
PP1
GN
D
P
1
Reset
Logic
RESQ
VS
U
P
S
TEST
GNDAB
VS
U
P
A
F
VS
U
P
D
GND
A
F
GNDD
RS
W
2
GNDM
EW
8
14-bit PWM
2
2
3
CIN
SVM
V
ideo
GNDS
CLK20
RDY
BE
24
kB
VCT 38xx
AOUT
VSync
VOUT
24 kB ROM
3 kB
OSD RAM
OSD RAM
Pict.Improv.
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