Lcd Driver; 3-4-5.C Board Block Diagram; 3-4-6.Memory Composition - Sony VPL-VW12HT Service Manual

3-4-5. C Board Block Diagram
21.667M
SDRAM clock
ST49C101ACF8-05
Hs/Vs
H/V (COAST) /CLP
(130MHz)
48 (16x3)
RGB
A/D
12C (400k) Scan Converter
AD9884
PW264
1/2DCK (40MHz)
DCK (80MHz)
Reset Dot clock
S-80828 SG8002
Buffer
TC74LCX125
ROM
MBM29LV400
Connector
for Write
RAM
IDT71V016S15
UART
RS232C
SIRCS
CPU
HD64F2633
Control
Fan,Power,e.t.c
SIRCS-S
IRDA Filter Connector
IRMF
for Write
SIRCS-NF SIRCS-NR
3-4-6. Memory Composition
3-4-6-1.Memory Composition
Device Name
CPU Internal ROM
CPU Internal RAM
External NVM Memory
Basic Memory Data Access
CPU
INT.ROM
• Set
• HS
• Status
• Chroma
• WB
• Video
3-20
Buffer 3.3→5
74VHCT541
Timing
Cont
RGT.DWN
Hs/Vs
48 (16x3)
3D γ /TG/SG
CXD9512Q
Buffer
W132-10
12C (400k)
4
S5301
EEPROM
M24C64
• γ courve
• 3D γ ADJ. Data
Reset
Connector for
S-80828
Production
Half Dot Clock
12.288MHz
Reset
WDT
Control Panel PROTECTER
Device Type Ref. No.
256kbyte Flash Memory C Board IC
16kbyte RAM C Board IC
16kbyte EEPROM C Board IC
EXT.NVM
EEPROM
• Set
Initialize
• HS
• Status
• Chroma
• WB
• Video
Timing Cont
INV_Buffer
TC74W04FU
RGT
RGT.DWN
D/A
ADV7123
Re
10
Ge
10
Even 30 Be
10
Odd 30
HS
Dot Line Inverter
CXD3504R
D/A
ADV7123
Ro
10
Go
10
Bo
10
Reset Reset
S-80828 S-80842
Reset
AND
TC7W08
EEPROM TTL→PECL
24LC128 MC100ELT20
2
I C (400k)
• ADJ. Data
• ST.Value
2
I C (100k)
2
I C (100k2)
Data Content
Initialization values
Active data
(Data that can be set or adjusted)
Saved data
(Values of settings and adjustments)
Data Load
(Active data Copy)
Data Save
(Memory)
Ge Ge

LCD Driver

CLAMP
CXA3512
Go
Go
Be
Offset
M52739FP
LCD Driver
Be
CXA3512
Re
LCD Driver
CXA3512
SH2
Re
LCD Driver
CXA3512
Ro
Ro
Offset
M52739FP
Bo
LCD Driver
Bo
CXA3512
SID
LCD Driver
CXA3512
Analog
Cont.
12V DAC
M62399
CPU
INT.RAM
• Set
• CH
• Status
• Chroma
• WB
• Video
LCD
PANEL
LCX037
LCD
PANEL
LCX037
LCD
PANEL
LCX037
VPL-VW12HT