Panasonic Aj Hdc27a Servece Information Manual

							INF-39
17-3. Compensation flow
The AJ-HDC27AP has Automatic blemish compensation function. Execution procedure of Automatic compensation
is shown below.
menu setting
Execute automatic compensation
“ menu”
Result confirmation (at TV monitor)
Automatic Blemish detection through compensation in whole
screen.
Store result of compensation (To built-in Memory)
(Only when executed manual adjustment)
Fine adjustment by cursor manually.
(Only when it cannot compensate completely by automatic
compensation
) 
						

							INF-40
17-4. Compensation Procedures
4-1.  Initial setting (Menu setting of DEFECT COMPENSATON page)
Before start an adjustment, Set items (CAM SERVICE level) following portion. (          portion , Sometimes it
isn’t possible to compensate blemish (es) in case of wrong setting.)

®
®® ®COMPENSATION
COMP ON GAIN
INTERACE MODE
R CH
G CH
B CH
TRIPLE OFFSET
CURSOR BOX
READ DATA
WRITE DATA
: ON
: 12dB
: PDMIX
: AVE
: AVE
: AVE
: BAB
: ON
: OFF
: OFF
Figure Ble-1 Defect Compensation page
4-2.  Execution of Automatic compensation (ENTRY (AUTO) page)
1. Open the “ page” in CAM SERVICE level.
2. Set “COMP ON GAIN” item to desired gain value. (Compensation works in the gain beyond the value set
up in this item.)
3. Open the “” in CAM SERVICE level.
4. Set the automatic compensation signal level (contrast ratio *
1) with “PICKUP LEVEL R/ G or B” items. The
AJ-HDC27AP detects blemish which bevel is more than the specified level by this set up.

®
®® ®PICKUP LEVEL R
PICKUP LEVEL G
PICKUP LEVEL B
START
NG LIST NO.
SELECT
ENTRY
CURSOR DISP
: 000
: 000
: 000
: OFF
: 000
: OFF
: OFF
Figure Ble-2 ENTRY (AUTO) page
*1 contrast ratio: blemish signal level patio at the Built-in color
bars signal is 100%.
5. Set “START” item to ON by JOG DIAL in the unit. By this operation, The unit will execute blemish detection
for compensation in whole screen, automatically. And while executing automatic compensation, blink
“PICKUP” character on the lower right of the screen. (It takes about 30 seconds)
6. When “OK” character appears in the place of “PICKUP”, automatic compensation is completed.
7. Close menu screen and then turn off the power of the Unit. (Compensation result will be stored in the built-
in memory of the Unit automatically.) 
						

							INF-41
4-3. Result confirmation
After execution of automatic compensation the number of detection result and the number of blemish which
wasn’t compensated will be displayed in lower part of “ENTRY (AUTO)” page as the result status table. (Refer
to Figure Ble-3) Please confirm whether all blemishes were compensated with this status display by viewing
the TV-monitor. As the standard of a confirmation, Blemish compensation specification is shown below.
LVLCNT
015003
010006
025004
001
R
G
B
Y
NG001
LV L
CNT
NG:
:
:Display PICKUP LEVEL menu item’s value
The number of the points which were detected and
compensated as blemish(es). (Display the each color, “Y”
shows two or more blemishes were detected at the same
position)
The number of the position because that was which
wasn’t compensated in compensation inhibition
position (refer to 5-4.).
Observation environment
Measurement part HD SDI OUT connector
Circumstance temperature
77°F (25°C)
GAIN setting +18dB
AW B SW setting PRST (PRESET)
SETUP level 0%
Specification
Contrast ratio*1Zone 1 Zone 2
0% - 8% No count No count
8% - 13% less than 2 less than 2
13% - 15% 0 less than 2
15% or more 0 0
*1 Contrast ratio: blemish signal level patio at the Built-in color bars signal is 100%.
4/5H3/5V
HV
Zone 1 Zone 2
Figure Ble-3 Result status table 
						

							INF-42
4-4. Manual compensation procedure
In case it couldn’t compensate all blemish in automatic compensation, it is also possible to perform blemish
compensation manually by using cursor. Following shows concrete manual compensation procedures by the
case required.
I ) Manual compensation for position which was not detected automatically
1.  Close LENS iris and then execute “ABB” by front switch.
2.  Open the “ page” in CAM SERVICE level.
3.  Set “COMP ON GAIN” item to desired gain value. (Compensation works in the gain beyond the value set
up in this item.)
4.  Open the “” in CAM SERVICE level.
5.  Set menu items are shown below.
DEFECT SIZE :  3
GAIN : OFF
6.  Set “DEFECT COLOR” item to R / G / B or Y, according to color of blemish. (If two or more color of
blemish appear in the same position, select “Y”.)

®
®® ®H CURSOR COARSE
H CURSOR FINE
V CURSOR COARSE
V CURSOR FINE
DEFECT SIZE
DEFECT COLOR
GAIN
OFFSET LEVEL A
OFFSET LEVEL B
ENTRY
CANCEL
: 03
: 80
: 02
: 80
: 3
: Y
: OFF
: 100 (*2)
: 100 (*2)
: OFF
: OFF
Figure Ble-4 ENTRY (MANUAL) page
7.  Observe TV-monitor and then adjust “H CURSOR COARSE and FINE” item so that the H cursor position
comes to target blemish.
8.  Observe TV-monitor and then adjust “V CURSOR COARSE and FINE” item so that the V cursor position
comes to reduce the blemish.
9.  Set “ENTRY” item to ON.
10.  When “ENTRY” character appears on the lower right of the screen, data store will be completed.
11.  Close menu screen and then turn off the power of the Unit.
 NOTE:
    *2 ”OFFSET A, B” menu items don’t work in current camera system control software Version T1.01-00-0.01, as of March/ ’01.
(A future schedule is undecided.) 
						

							INF-43 II ) When compensation is fully impossible
In this case, there are two solutions by manual compensation.
    a ) Re-setup of PICKUP LEVEL
1.  Open “” page in CAM SERVICE level.
2.  Re-Setup “PICKUP LEVEL R/ G or B” items to level down (down detection level).
3.  Execute automatic compensation again. (Set “START” item in “” page to ON.)
        b ) Fine adjustment of cursor position
1.  Open “” page in CAM SERVICE level.
2.  Select Defect number desired position of fine cursor adjustment by “DEFECT NO.” item.
3.  Set “DELETE” item to ON (turn JOG DIAL) and then press JOG DIAL.
4.  Open “” page in CAM SERVICE level.
5.  Set menu items are shown below.
DEFECT SIZE :  3
GAIN : OFF
6.  Set “DEFECT COLOR” item to R / G / B or Y, according to color of blemish. (W hen two or more color of
blemish appear in the same position, select “Y”.)

®
®® ®H CURSOR COARSE
H CURSOR FINE
V CURSOR COARSE
V CURSOR FINE
DEFECT SIZE
DEFECT COLOR
GAIN
OFFSET LEVEL A
OFFSET LEVEL B
ENTRY
CANCEL
: 03
: 80
: 02
: 80
: 3
: Y
: OFF
: 100
: 100
: OFF
: OFF
Figure Ble-5 ENTRY (MANUAL) page
7.  Observe TV-monitor and then adjust “H CURSOR COARSE and FINE” item so that the H cursor position
comes to target blemish.
8.  Observe TV-monitor and then adjust “V CURSOR COARSE and FINE” item so that the V cursor position
comes to reduce the blemish.
9.  Set “ENTRY” item to ON (turn JOG DIAL) and then press JOG DIAL.
10.  When “ENTRY” character appears on the lower right of the screen, data store will be completed.
11.  Close menu screen and then turn off the power of the Unit. 
						

							INF-44
17-5. Remarks
5-1. Delete all cursor position data in the built-in memory
1.  Open “” page in CAM SERVICE level.
2.  Set “ALL DATA CLEAR?” item to ON by JOG DIAL operation.
3.  Set “REALY ALL CLEAR?” item to ON by JOG DIAL operation.
4.  When “ALL CLR” character appears on the lower right of the screen, data deletion will be completed.
5.  Close menu screen and then turn off the power of the Unit.
5-2. Delete registered data one by one
1.  Open “” page in CAM SERVICE level.
2.  Select “DEFECT NO.” to desired position of cursor.
3.  Set “DELETE” item to ON by JOG DIAL operation.
4.  When “DELETE” character appears on the lower right of the screen, data deletion will be completed.
5.  Close menu screen and then turn off the power of the Unit.
5-3. Change Parameter about blemish compensation
1.  Open “” page in CAM SERVICE level.
2.  Select “DEFECT NO.” to desired position of cursor.
3.  Change some parameters in “” page (DEFECT COLOR, DEFECT SIZE etc.).
4.  Set “CHANGE” item to ON by JOG DIAL operation.
5.  When “CHANGE” character appears on the lower right of the screen, data change will be completed.
6.  Close menu screen and then turn off the power of the Unit.
5-4. About the position inhibited to register the compensation data
Depending on the position for the blemish compensation, blemish compensation doesn’t work properly. In that
case, it display “NG” on the lower right position on the screen and inhibit registration of the blemish compensation
position. The condition “a)” is shown below.
a) :    position of V CURSOR is the same line of the blemish compensated position and H cursor is +/- 2.
Figure Ble-6 The position inhibited to register the compensation data
: Registered blemish compensation position
: Registration inhibited position
a) 
						

							INF-45
17-6. Trouble Shooting
Symptom Cause Check point
Blemish can’t be compensated
even COMPENSATION item
on menu is set to “ON”.Wrong setting of fixed setting
item. page has items which must have
fixed setting.
Confirm if those items are fixed as factory default. (See 4-1.
Initial Setting” for details.)
Blemish compensation position
number (DEFECT No.) is
different from before.DEFECT No. is changed. DEFECT No. is automatically set from top left of monitor by the
direction of scanning. Therefore when new compensation
position is registered, another DEFECT No. may be changed.
“NG display appeared on the
lower right of the screen when
trying to register a blemish
compensation position.Tried to execute registration
for the registration prohibited
position.Refer to the “5-4. About the position inhibited to register the
compensation data” page.
17-7. FAQ (Frequently Asked Question)
Question Answer
When execute blemish
compensation, Which
should I set to position
of GAIN SW on the
unit?· In the AJ-HDC27AP, GAIN setting while the blemish compensation used by only MENU setup.
Therefore you don’t have to set GAIN SW to some position.
· By setting value of “COMP ON GAIN” item in the  page, it is
possible to enable compensation in case of level more than the setting value on “COMP ON
GAIN” item.
· When you want to enable the blemish compensation in all GAIN SW positions, Set “GAIN” item
in the ENTRY (MANUAL) menu page to OFF.
Can I store the blemish
compensation data as
backup to some place?· Ye s
· Normally, blemish compensation data is stored in IC201 (NV RAM) on the CAM_SYS P.C.Board.
· The AJ-HDC27AP is possible to store and read all blemish compensation data in IC202 (Flash
memory) on the CAM_SYS P.C.Board as the BACKUP. by following operation in the DEFECT
COMPENSATION menu page.
DATA WRITE: Set ”READ DATA” item to ON.
      DATA READ: Set “WRITE DATA” item to ON.
· Blemish compensation data is not stored to any extra media (SD CARD etc.)