Sony IFU-HS1 / RM-PJHS1 / SU-HS1 / VPL-HS1 / VPL-HS1FP Service Manual ▷ View online
3-7
VPL-HS1
3-5. White Balance Adjustment on
Servicing
3-5-1. Signal Level Adjustment
1.
Input the 80 IRE FLAT FIELD signal to INPUT-A.
(COMPONENT)
2.
Warm up the unit at least 10 minutes.
3.
Enter the Factory Mode (Please refer to 3-1-3)
Press the keys in the following order.
“ENTER”
“ENTER”
→
“ENTER”
→
“
N”
→
“ENTER”
The message “Do you wish to enter into the
FACTORY MODE? Yes:
FACTORY MODE? Yes:
↑
No:
↓
” will be
displayed.
Select “Yes:
Select “Yes:
↑
”.
n
. When leaving the FACTORY MODE, perform
. When leaving the FACTORY MODE, perform
item 3.
“Do you wish to return to the USER MODE?
“Do you wish to return to the USER MODE?
Yes:
↑
No:
↓
” will be displayed. Select
“Yes:
↑
”.
. Cannot enter FACTORY MODE by MS
channel.
4.
Set the COLOR TEMP to MID mode.
5.
Set the INPUT signal to the 80 IRE FLAT FIELD
GREEN-only mode.
6.
Change the CONTRAST: MAX to BRIGHT: MAX.
7.
Measure the brightness (Ygmax).
8.
Change CONTRAST: 80 to BRIGHT: 50.
9.
Enter the P. DRV on the MENU screen by the DEV.
ADJ.
ADJ.
10. Adjust the brightness to (0.65
×
Ygmax) by the
VAMP/CONT (E) of P DRV.
11. Change the INPUT signal to 80 IRE FLAT FIELD
white signal.
12. Change the CONTRAST: MAX to BRIGHT: MAX.
13. Measure the chromaticity (xmax, ymax)
13. Measure the chromaticity (xmax, ymax)
14. Change CONTRAST: 80 to BRIGHT: 50.
15. Adjust the chromaticity to (xmax
15. Adjust the chromaticity to (xmax
± 0.002, ymax ±
0.004) by the VAMP/SUB CON R(E) or SUB CON
B (E) of P. DRV.
B (E) of P. DRV.
3-5-2. White Balance Adjustment
nput the 10 STEP signal to INPUT-A, and observe the
chromaticity of each luminance.
chromaticity of each luminance.
When varying the chromaticity of each luminance, perform
the following adjustments.
the following adjustments.
1) MID Mode of INPUT-A
1.
Input the 100 IRE FLAT FIELD signal to INPUT-A
2.
Measure the chromaticity (x, y)
3.
Input the 80 IRE FLAT FIELD signal to INPUT-A.
4.
Adjust the chromaticity (x, y) to the values measured in
step 2, by the GAIN R and B of W/B MID mode.
step 2, by the GAIN R and B of W/B MID mode.
5.
Set the INPUT signal to the 30 IRE.
6.
Adjust the chromaticity (x, y) to the values measured in
step 2, by the BIAS R and B.
7.
Repeat above steps 3. to 6. until the chromaticity
become the following values.
x
x
± 0.002, y ± 0.004 (The x and y are the values
measured in step 2.)
2) HIGH Mode of INPUT-A
1.
Input the 80 IRE FLAT FIELD signal to INPUT-A.
2.
Set the GAIN G to MID mode value at “
_32” with the
HIGH mode of the W/B. And set the GAIN R to MID
mode value at “
mode value at “
_23”.
3.
Set the GAIN R and B that are equal to MID mode
values. (Set the GAIN R and B to the same as MID
values. (Set the GAIN R and B to the same as MID
mode values.)
4.
Set the BIAS R, G and B that are equal to MID mode
values. (Set the BIAS R, G and B to the same as MID
mode values.)
mode values.)
5.
Measure the chromaticity (x, y)
6.
Input the 30 IRE signal to INPUT-A.
7.
Adjust the chromaticity (x, y) to the values measured in
step 2, by the BIAS R and B of W/B HIGH mode.
step 2, by the BIAS R and B of W/B HIGH mode.
8.
Input the 80 IRE signal to INPUT-A.
9.
Adjust the chromaticity (x, y) to the values measured in
step 2, by the GAIN R and B.
10. Repeat above steps 6. to 9. until the chromaticity
become the following values.
x
x
± 0.002, y ± 0.004 (The x and y are the values
measured in step 5.)
3-8
VPL-HS1
3) LOW Mode of INPUT-A
1.
Input the 80 IRE FLAT FIELD signal to INPUT-A.
2.
Set the GAIN G to MID mode value at “
_35” with the
LOW mode of the W/B.
Set the GAIN B that is equal to MID mode value at
“
“
_30”. (Set the GAIN B to the same as MID mode
value “
_30”.)
3.
Set the GAIN R that is equal to MID mode value. (Set
the GAIN R to the same as MID mode value.)
4.
Set the BIAS R, G and B that are equal to MID mode
value. (Set the BIAS R, G and B to the same as MID
mode value).
mode value).
5.
Measure the chromaticity (x, y).
6.
Input the 30 IRE signal to INPUT-A.
7
Adjust the chromaticity (x, y) to the values measured
in step 2, by the BIAS R and B of W/B HIGH mode.
in step 2, by the BIAS R and B of W/B HIGH mode.
8.
Input the 80 IRE signal to INPUT-A.
9.
Adjust the chromaticity (x, y) to the values measured
in step 2, by the GAIN R and B.
10. Repeat above steps 6. to 9. until the chromaticity
become the following values.
x
x
± 0.002, y ± 0.004 (The x and y are the values
measured in step 5.)
4) MID/HIGH/LOW Mode of VIDEO
1.
Input the VIDEO signal of NTSC or PAL.
2.
Set the BIAS R, G and B and GAIN R, G and B of
MID, HIGH and LOW mode of W/B that are equal to
the values of corresponding items in INPUT-A.
the values of corresponding items in INPUT-A.
(Altogether 18 items)
3.
Set the GAIN G only of MID mode value at “
_16” in
INPUT-A.
3-9
VPL-HS1
Gamma memory is actualized through Gamma mode
functions’offsetting the output values to the Contrast and
Brightness devices.
Brightness devices.
When the power plug is connected to the power line
(Standby status), all data inside the internal ROM are
(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,
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.
written into the internal RAM.
When adjustment is carried out, adjustment data are
written into the NVM automatically (items on the user
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.
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
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
factory preset (adjusted) data are all eliminated from the
memory.
3-6. Memory
Memory structure consists of the following five memory
blocks.
1.
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
External NVM memory : 8 kbyte EEPROM
No.01
No.02
No.03
No.04
No.05
IN
PUT
-A
Pr
eset
eset
No.50
No.53
No.54
No.55
Status
Memory
Memory
IN
PUT
-M
S
Pr
eset
eset
No.60
No.01
No.02
No.02
No.03
No.04
No.05
No.04
No.05
IN
P
U
T
-A
Pres
et
No.50
No.53
No.54
No.55
No.53
No.54
No.55
IN
P
U
T
-M
S
S
Pres
et
No.60
No.71
No.71
Status
Memory
Memory
IN
P
U
T
-A
Us
e
e
r
No.90
Video 1
S Video 1
Input-A
Video 2
S Video 2
Channel
Memory
Memory
Input-MS
Video 1
S Video 1
Input-A
Video 2
S Video 2
Channel
Memory
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
USER2
VIDE O
Memory
USER3
DYNAMIC
STANDARD
LIVING
USER1
USER2
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)
3-10
VPL-HS1
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