Pin Connection And Short Descriptions - Toshiba 29VH27E Service Manual

– soft limiter (gamma correction)
– color transient improvement
– programmable RGB matrix
– picture frame generator
– two analog RGB/Fast-Blank inputs. The DDP 3310B is a single-chip digital Display and Deflection
Processor designed for high-quality back-
Deflection processing
– scan velocity modulation output
– high-performance H/V deflection
– EHT compensation for vertical / East/West
– soft start/stop of H-Drive
– vertical angle and bow
– differential vertical output
– vertical zoom via deflection
– horizontal and vertical protection circuit
– adjustable horizontal frequency for VGA/SVGA display
Miscellaneous
– selectable 4:1:1/ 4:2:2 YC
– selectable 27/ 32-MHz line-locked clock input
– crystal oscillator for horizontal protection
– automatic picture tube adjustment (cutoff, white-drive)
– single 5-V power supply
– hardware for simple 50/60-Hz to 100/ 120-Hz conversion (display frequency doubling)
2
– two I C-controlled PWM outputs
– beam current limiter

14.8.3.Pin connection and short descriptions

NC = not connected
X = obligatory; connect as described in circuit diagram
OUT = Output
Pin no Pin name
PLCCK 68 pin
1 VSUPP
2 GNDP
3 VS2
4 FIFORRD
5 FIFORD
6 FIFOWR
7 FIFORWR
8 HOUT
9 HFLB
10 SAFETY
11 VPROT
12 FREQSEL
13 CM1
14 CMO
15 RSW2
16 RSW1
17 SENSE
18 GNDM
19 VERT+
20 VERT-
21 EW
22 XREF
23 SVM
24 ROUT
25 GOUT
26 BOUT
27 GNDO
28 VSUPO
C input
r b
Type Connection
(if not used)
SUPPLY X
SUPPLY X
IN GNDD
OUT LV
OUT LV
OUT LV
OUT LV
OUT X
IN Hout
IN GNDO
IN GNDO
IN X
IN X
IN X
OUT LV
IN/OUT LV
IN GNDO
SUPPLY X
OUT GNDO
OUT GNDO
OUT GNDO
IN X
OUT VSUPO
OUT VSUPO
OUT VSUPO
OUT VSUPO
SUPPLY X
SUPPLY X
13
LV = if not used, leave vacant
IN = Input
SUPPLY = Supply Pin
Short description
Supply voltage, Output pin driver
Ground, Output pin driver
Additional VSYNC input
FIFO Read counter reset
FIFO Read Enable
FIFO Write Enable
FIFO Write counter reset
Horizontal Drive Output
Horizontal Flyback Input
Safety Input
Vertical protection Input
Selection of H-Drive Frequency Range
Clock select 40.5 or 27/32 MHz
Clock select 27/32 MHz
Range Switch2, Measurement ADC
Range Switch1, Measurement ADC
Sense ADC Input
Ground, MADC Input
Differantial Vertical Sawtooth Output
Differantial Vertical Sawtooth Output
Vertical Parabola Output
Reference Input for RGB DACs
Scan Velocity Modulation
Analog Output Red
Analog Output Green
Analog Output Blue
Ground, Analog Back-end
Supply Voltage, Analog Back-end