Pin Connections And Short Descriptions - Hitachi 32LD8700C Service Manual

• multi-standard sync processing
• linear horizontal scaling (0.25 ... 4), as well as non-linear horizontal scaling 'Panorama-vision'
• PAL+ preprocessing
• line-locked clock, data and sync, or 656-output interface
• peaking, contrast, brightness, color saturation and tint for RGB/ YC
• high-quality soft mixer controlled by Fast Blank
• PIP processing for four picture sizes (1/4, 1/9, 1/16 or 1/36 of normal size) with 8-bit resolution
• 15 predefined PIP display configurations and expert mode (fully programmable)
• control interface for external field memory
• I 2 C-bus interface
• one 20.25-MHz crystal, few external components
• 80-pin PQFP package
11.31.2.

Pin Connections and Short Descriptions

NC = not connected
LV = if not used, leave vacant
X = obligatory; connect as described in circuit diagram
SUPPLYA = 4.75...5.25 V, SUPPLYD = 3.15...3.45 V
Pin No. Pin Name
PQFP
80-pin
1 B1/CB1IN
2 G1/Y1IN
3 R1/CR1IN
4 B2/CB2IN
5 G2/Y2IN
6 R2/CR2IN
7 ASGF
8 FFRSTWIN
9 V
SUPCAP
10 V
SUPD
11 GND
D
12 GND
CAP
13 SCL
14 SDA
15 RESQ
16 TEST
17 VGAV
18 YCOEQ
19 FFIE
20 FFWE
21 FFRSTW
22 FFRE
23 FFOE
24 CLK20
25 GND
PA
26 V
SUPPA
27 LLC2
28 LLC1
29 V
SUPLLC
30 GND
LLC
31 Y7
32 Y6
33 Y5
34 Y4
35 GND
Y
36 V
SUPY
37 Y3
38 Y2
39 Y1
40 Y0
41 C7
TFT TV Service Manual
Type Connection
(if not used)
IN VREF
IN VREF
IN VREF
IN VREF
IN VREF
IN VREF
X
IN LV or GND
OUT X
SUPPLYD X
SUPPLYD X
OUT X
IN/OUT X
IN/OUT X
IN X
IN GND
D
IN GND
D
IN GND
D
OUT LV
OUT LV
OUT LV
OUT LV
OUT LV
IN/OUT LV
OUT X
OUT X
OUT LV
IN/OUT LV
SUPPLYD X
SUPPLYD X
OUT GND
Y
OUT GND
Y
OUT GND
Y
OUT GND
Y
SUPPLYD X
SUPPLYD X
OUT GND
Y
OUT GND
Y
OUT GND
Y
OUT GND
Y
OUT GND
C
C
r
Short Description
Blue1/Cb1 Analog Component Input
Green1/Y1 Analog Component Input
Read1/Cr1 Analog Component Input
Blue2/Cb2 Analog Component Input
Green2/Y2 Analog Component Input
Read2/Cr2 Analog Component Input
Analog Shield GND
F
FIFO Reset Write Input
D
Digital Decoupling Circuitry Supply Voltage
Supply Voltage, Digital Circuitry
Ground, Digital Circuitry
Digital Decoupling Circuitry GND
2
I C Bus Clock
2
I C Bus Data
Reset Input, Active Low
Test Pin, connect to GND
VGAV Input
Y/C Output Enable Input, Active Low
FIFO Input Enable
FIFO Write Enable
FIFO Reset Write/Read
FIFO Read Enable
FIFO Output Enable
Main Clock output 20.25 MHz
Pad Decoupling Circuitry GND
Pad Decoupling Circuitry Supply Voltage
Double Clock Output
Clock Output
Supply Voltage, LLC Circuitry
Ground, LLC Circuitry
Picture Bus Luma (MSB)
Picture Bus Luma
Picture Bus Luma
Picture Bus Luma
Ground, Luma Output Circuitry
Supply Voltage, Luma Output Circuitry
Picture Bus Luma
Picture Bus Luma
Picture Bus Luma
Picture Bus Luma (LSB)
Picture Bus Chroma (MSB)
32
and CVBS/ S-VHS
b
D