Sony IFU-HS1, Service Manual

Page: 57 / 144

3-9
VPL-HS1
Gamma memory is actualized through Gamma mode
functions’offsetting the output values to the Contrast and
Brightness devices.
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.
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 factory mode), then stored them.
Adjustable items (W/B and Device Adjust) of the service
mode and special service mode are memorized into the
NVM by the memory operation. At the same time, the
factory preset (adjusted) data are all eliminated from the
memory.
3-6. Memory
Memory structure consists of the following five memory
blocks.
1.
Set memory
2. Status memory
3. Channel memory
4. Chroma memory
5. W/B memory
CPU internal ROM : 256 kbyte Flash Memory
CPU internal ROM : 16 kbyte
External NVM memory : 8 kbyte EEPROM
No.01
No.02
No.03
No.04
No.05
IN
PUT
-A
Pr
eset
No.50
No.53
No.54
No.55
Status
Memory
IN
PUT
-M
S
Pr
eset
No.60
No.01
No.02
No.03
No.04
No.05
IN
P
U
T
-A
Pres
et
No.50
No.53
No.54
No.55
IN
P
U
T
-M
S
Pres
et
No.60
No.71
Status
Memory
IN
P
U
T
-A
Us
e
r
No.90
Video 1
S Video 1
Input-A
Video 2
S Video 2
Channel
Memory
Input-MS
Video 1
S Video 1
Input-A
Video 2
S Video 2
Channel
Memory
Input-MS
NT358/443/BW60
PAL/PAL-M/N/
SECAM /BW50
15k RGB
Component (15k)
Two ti mes speed
Component
Chroma
Memory
HDTV (YpbPr)
HDTV (GBR)
NT358/443/BW60
PAL/PAL-M/N/
SECAM /BW50
15k RGB
Component(15k )
Two ti mes speed
Component
Chroma
Memory
HDTV YpbPr
HDTV(GBR)
HIGH
LOW
Comput er
MIDDLE
HIGH
LOW
W/B
Memory Others
MIDDLE
HIGH
LOW
Comput er
MIDDLE
HIGH
LOW
W/B
Memory
Others
MIDDLE
DYNAMIC
STANDARD
LIVING
USER1
USER2
VIDE O
Memory
USER3
DYNAMIC
STANDARD
LIVING
USER1
USER2
VIDE O
Memory
USER3
Set Memory
CPU ROM
Set Memory
Exte rnal N VM
Set Memory
Status Memory
Chroma Memory
CPU RAM
Initialize
Activ e memory copy
Memory
LOW
W/B
Memory
HIGH
MIDDL E
Channel Memory
Video Memory
(Include teo times speed)
(Include teo times speed)