Service manual

29
32JW-73E
6.7.1. Absolute Maximum Ratings
1)
Refer to Pin Circuits (chapter 6.6. on page 157)
Stresses beyond those listed in the “Absolute Maximum Ratings” may cause permanent damage to the device. This
is a stress rating only. Functional operation of the device at these or any other conditions beyond those indicated in
the “Recommended Operating Conditions/Characteristics” of this specification is not implied. Exposure to absolute
maximum ratings conditions for extended periods may affect device reliability.
Symbol Parameter Pin Name Min. Max. Unit
T
A
Ambient Operating Temperature − 65 °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
−0.3 6 V
VCT3834 (IC1001)
Fig. 1–2: Block diagram of the VCT 38xxA/B (shaded blocks are optional)
The block diagram does not show the additional features of VCT 38xxB.
Video
Front-end
Comb
Filter
Color
Decoder
Display
Processor
Video
Back-end
Panorama
Scaler
4
3
4
12
31
2
I
2
C Master
3kB
OSD
96 kB
CPU ROM
TPU
DMA
CPU
24 IO Ports
Watchdog
2 CapCom
2 Timer
15:1 Mux
10-bit ADC
8-bit PWM
Audio
3
2
Clock
Oscillator
1kB
CPU RAM
XTAL1
XTAL2
VIN
AIN
Pxy
ADB, DB, CB
RGBOUT
RGBIN
VERT PROT HFLB SENSE
I
2
C
XREF
HOUT
VRD
VRT
SGND
Color, Prio
MSync
I
2
C
VSUPAB
VSUPP1
GNDP1
Reset
Logic
RESQ
VSUPS
TEST
GNDAB
VSUPAF
VSUPD
GNDAF
GNDD
RSW
2
GNDM
EW
8
14-bit PWM
2 2
3
CIN
SVM
Video
GNDS
CLK20
RDY
BE
24 kB
VCT 38xxA/B
AOUT
VSync
VOUT
24 kB ROM
3kB
OSD RAM
Pict.Improv
16 kB
Te xt
RAM