Memory - Sony VPL-CX11 Service Manual

2-6. Memory

Memory structure of VPL-CX11 series is based on the
VPL-CS1 series, and it is composed of the following eight
memory blocks.
1. Set memory
2. Status memory
3. Channel memory
4. Chroma memory
5. W/B memory
6. Reso memory
7. Gamma memory
8. Uniformity memory
Internal ROM of the CPU : 256 kbyte flash memory
Internal RAM of the CPU : 16 kbyte
External NVM memory : 8 kbyte EEPROM
(IC202 on BA board)
2-8
Set Memory
Set Memory
No.01
Status
Status
Memory
No.02 Memory
No.03
...
...
No.50
Video
Channel
Channel
S-Video
Memory
Memory
Input-A
Chroma NT358/443/BW60
Chroma
Memory
Memory
PAL/PAL-M/N/
SECAM/BW50
15k Component
W/B W/B
HIGH
Memory Memory
LOW
HIGH
LOW
Reso No. 0
Reso Reso
...
Memory Memory
...
Reso No.17
CPU ROM
Initialize
Graphics
Gamma Gamma
Memory Memory
Text
Uniformity Memory
When the power plug is connected to the power line
(Standby status), all data inside the internal ROM are
written into the NVM (Nonvolatile Memory). When the
power is turned to on, required data for the current picture,
such as status memory data, etc., are selected, and they are
written into the internal RAM.
However, the Gamma memory data and the data of the
Uniformity memory that is newly added this time are not
copied to the internal RAM but are directly sent to the
registers inside the device.
When adjustment is carried out, adjustment data are
written into the NVM automatically (items on the user
mode) or by the trigger of memory operation (items on the
service mode and special service mode).
However, the values that are stored in the Gamma memory
and in the Uniformity memory cannot be adjusted from
OSD but can be adjusted only using the RS-232C commu-
nication.
Adjustable items (W/B and Device Adjust) of the service
mode and special service are memorized into the NVM by
the memory operation. At the same time, the factory preset
(adjusted) data are all eliminated from the memory.
Set Memory
No.01 Status Memory
No.02
No.03
...
...
No.50
No.71
...
No.90
Video
Channel Memory
S-Video
Input-A
NT358/443/BW60
Chroma Memory
PAL/PAL-M/N/
SECAM/BW50
15k Component
W/B
HIGH
Memory
LOW
HIGH
LOW
Reso No. 0 Reso Memory
...
...
Reso No.17
External NVM CPU RAM
Memory
Active memory copy
Graphics
Output to device directly
Text
Uniformity Memory
HIGH
LOW
VPL-CX11