JVC TK-C720TPU - Cctv Color Camera User manual

SERVICE MANUAL
TK-C720TPU/TK-C720TPE
COLOR VIDEO CAMERA
No. 60142
June 2002
COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.
100% recycled paper
Shown with optional lens

Section Title PageSection Title Page
TABLE OF CONTENTS
INSTRUCTIONS
1. DISASSEMBLY
1.1 REPLACING THE FUSE ............................................. 1-1
1.2 REMOVAL OF CIRCUIT BOARDS ............................. 1-1
1.3 REPLACING THE CCD IMAGE SENSOR ................... 1-3
1.3.1 Removing the CCD image sensor ..................... 1-3
1.3.2 Installing the CCD image sensor ....................... 1-3
1.4 SERVICING OF CIRCUIT BOARDS ............................ 1-4
2. ELECTRICAL ADJUSTMENTS
2.1 REQUIRED MEASURING INSTRUMENTS FOR
ADJUSTMENTS ......................................................... 2-1
2.1.1
Required measuring instruments for adjustments . 2-1
2.1.2 Applicable lens for adjustments ........................ 2-1
2.1.3 Required system for adjustments ..................... 2-2
2.1.4 Required instruments for adjustment ............... 2-2
2.2 STANDARD SETUP .................................................... 2-3
2.3 SWITCH SETTING FOR ADJUSTMENT ..................... 2-3
2.4 NOTES ....................................................................... 2-4
2.4.1 Installation ......................................................... 2-4
2.4.2 How to adjusting the EVR ................................. 2-4
2.4.3 What is “Initial Data” ........................................ 2-4
2.4.4 How to write adjusted data to EEPROM
in camera .......................................................... 2-4
2.4.5 The test points on the PRO board .................... 2-4
2.5 INITIALIZE .................................................................. 2-5
2.6 ADJUSTMENT OF SSG ............................................. 2-5
2.7 ADJUSTMENT OF CCD ............................................. 2-6
2.8 ADJUSTMENT OF VIDEO SIGNAL ............................ 2-7
2.9 ADJUSTMENT OF WHITE BALANCE ........................ 2-9
2.10 ADJUSTMENT OF CHROMA SIGNAL ..................... 2-12
2.11 WRITE DATA ............................................................ 2-12
3. CHARTS AND DIAGRAMS
3.1 OVERALL WIRING DIAGRAM ................................... 3-1
3.2 BLOCK DIAGRAM ..................................................... 3-2
3.3 CCD BOARD SCHEMATIC DIAGRAM ....................... 3-3
3.4 CCD CIRCUIT BOARD ............................................... 3-3
3.5 PRO BOARD SCHEMATIC DIAGRAM ....................... 3-4
3.6 PRO CIRCUIT BOARD ............................................... 3-5
3.7 EE BOARD SCHEMATIC DIAGRAM .......................... 3-6
3.8 EE CIRCUIT BOARD .................................................. 3-7
3.9 TER BOARD SCHEMATIC DIAGRAM ........................ 3-7
3.10 TER CIRCUIT BOARD ................................................ 3-7
3.11 POW BOARD SCHEMATIC DIAGRAM ...................... 3-8
3.12 POW CIRCUIT BOARD .............................................. 3-8
3.13 TP BOARD SCHEMATIC DIAGRAM .......................... 3-9
3.14 TP CIRCUIT BOARD .................................................. 3-9
3.15 BLOCK DIAGRAMS of IC’S ..................................... 3-10
4. EXPLODED VIEW AND ASSEMBLY PARTS LIST
4.1 ASSEMBLY M1......................................................... 4-1
5. ELECTRICAL PARTS LIST
5.1 CCD BOARD ASSEMBLY PARTS LIST 01............... 5-2
5.2 PRO BOARD ASSEMBLY PARTS LIST 02............... 5-2
5.3 EE BOARD ASSEMBLY PARTS LIST 03.................. 5-5
5.4 TER BOARD ASSEMBLY PARTS LIST 04................ 5-5
5.5 POW BOARD ASSEMBLY PARTS LIST 05.............. 5-6
5.6 TP BOARD ASSEMBLY PARTS LIST 06.................. 5-7
6. PACKING ........................................................................ 6-1

1-1
SECTION 1
DISASSEMBLY
Fig. 1-1
Fig. 1-2-2
Fig. 1-2-4
Fig. 1-2-1
1.1 REPLACING THE FUSE
CAUTION
Before replacing the fuse, check the cause of the fuse
blow in order to prevent a recurrence of the problem,
repair and confirm its normal operation. For safety and
to protect the equipment, be sure to replace the fuse
with the one having the specified parts number.
(1) As a consequence of 1.2, disassemble the boards as shown
in fig. 1-2-4.
(2) Then, a fuse F500 on the POW board is exposed.
1.2 REMOVAL OF CIRCUIT BOARDS
(1) Remove the three screws 1and remove the bottom cover
Å.
(2) Turn the main unit over and then remove the four screws
2.
(3) Turn the main unit over and then pull out the camera unit in
the direction of the arrow mark.
F500
POW board
Å
1
2
Fig. 1-2-3
(4) Disconnect the FFC ıand remove the two screws 3.
3
PRO board
ı
Lug wire
Note:
• When securing the screw 3, be sure to secure the
lug wire together it.
* Parts No. is see section 4.

1-2
4
Ï
´
EE board
(5) Disconnect the wire Ç.
(6) Pull out the PRO board in the direction of the arrow, and
then remove the PRO board together the TP board.
Fig. 1-2-5
(7) Turn over the PRO board, release the TP board from the
spacer.
(8) Hold the both sides of the TP board, pull out the TP board in
the direction of the arrow.
Ç
PRO board
TP board
PRO board
Spacer
TP board
Hold the both side
Fig. 1-2-6
(9) Disconnect the FPC Îand remove the TERMINAL board
and rear panel.
Fig. 1-2-7
Î
TERMINAL board
Rear
panel
(10) Turn over the main unit, remove the two screws 4, and
then detach the heat sink ´and the chassis Ï.
(11) In order to remove the EE board, bring it down, level it and
then pull it out in the direction of the arrow mark.
Fig. 1-2-8
Fig. 1-2-9

1-3
1st. pin Index
VRGL code VSUB code
ICX0***K- A
VRGL code
VSUB code
HOLDER PLATE
1.3 REPLACING THE CCD IMAGE SENSOR
1.3.1 Removing the CCD image sensor
(1) As a consequence of 1.2, disassemble the boards as shown
in fig. 1-2-4.
(2) Remove the two screws 5and remove the CCD board.
(3) Remove the CCD image sensor which soldering on the CCD
board.
1.3.2 Installing the CCD image sensor
(1) Before soldering the pins of the CCD image sensor, first in-
stall the CCD board by securing it to the sensor base ˝with
the two screws 6.
Fig. 1-3-1(a)
CCD board
5
CCD board
Remove the
solder from these
sections.
Fig. 1-3-1(b)
Note:
The VRGL code and VSUB code are marking on the holder
plate. When change the CCD image sensor, mark the VRGL
code and VSUB code of the new CCD on the holder plate. It
is necessary for the adjustment.
Fig. 1-3-2
Note:
CCD board
˝
6
Solder
Note:
•The image sensor is interchangeable only with a speci-
fied image sensor.
•New image sensors and crystal filters should be han-
dled so as not to leave fingerprints or grease on their
glass surfaces.
To remove attached dirt or grease blow on the glass
surface until it becomes misted then wipe it gently
with a cotton swab. (Do not use alcohol or other simi-
lar substances.)
•After replacement, all of the adjustments should be
performed from the beginning.
•Note that the image sensor is susceptible to static
damage. Be sure to take anti-static measures before
replacing it.
•After an image sensor has been removed, an electri-
cal charge may remain on the terminals of the cam-
era circuit for a certain period of time.
If a new image sensor is inserted into the socket in
this condition, the image sensor may b instantly dam-
aged by the remaining electric charge. To prevent this
happening, wait a while (2 to 3 minutes) after remov-
ing an image sensor until inserting another one in
the socket.
•After the CCD board has been removed from the SEN-
SOR BASE, the back-focus adjustment should be per-
formed again.

1-4
1.4 SERVICING OF CIRCUIT BOARDS
(1) As a consequence of 1.2, remove the each board.
(2) By connecting the each board as shown in fig.1-4-1.
Note:
When checking the PRO board and TP board, be sure to
use extension board as shown in fig.1-4-2.
Fig. 1-4-1
Fig. 1-4-2
CCD board POW board TERMINAL board
TP boardPRO board
Extension board
TP board
PRO board
Extension board
Part No. KCJ0212
Manufacturer Model No.
NITEK VB37
NVT NV-213A
NVT NV-652R
sRecommended wires
• Unshielded Twisted Pair
• Wire gauge 0.5mm (24AWG) or Thicker
• Category Type: 5 (100 Ø)
* When using twisted pair cable, make sure that the +/-
polarities are correct.
*Recommended Receiver
Note:
Connect the VIDEO OUT +/- terminals, which are on the
rear panel, to the +/- terminals on the receiver using twisted
pair cable.

2-1
SECTION 2
ELECTRICAL ADJUSTMENTS
To change the setting of adjustment items, use a computer with the adjustment software to change the set value of the EVR for each
adjustment item as well as to store the changed data into the memory of the camera. If any of the following parts is replaced or the
camera needs to adjust settings of itself such as auto white balance, etc., it requires adjustment of the EVR with a computer.
• CCD board
CCD Image sensor ICX058CK-A for TK-C720TPU, ICX059CK-A for TK-C720TPE
• PRO board
IC205 EEPROM AK6420AM
Note: Set the camera’s back focus adjustment ring to the position appropriate for the camera lens to be used. (Refer to the instruc-
tions.)
• Manual zoom
• Manual iris
• Filter diameter
The infinity adjustment lens (YTU92001B) is provided with five kinds of screw-in adapters that make it attachable to camera
lenses of five different filter sizes (∅=37, 43, 46, 49 and 52 mm, pitch=0.75 mm each). Use a camera lens whose filter size is any
of the above-mentioned diameters. If is desirable to use a zoom lens that covers the focal length of 20-40 mm (for to the 2/3-inch
image size) or so as an intermediate focal length of its zoom ratio.
• Recommended lens (example)
2.1.2 Applicable lens for adjustments
2.1 REQUIRED MEASURING INSTRUMENTS FOR ADJUSTMENTS
2.1.1 Required measuring instruments for adjustments
Instrument
Oscilloscope
Frequency counter
Condition
Capable of measuring 100MHz or
higher bands and calibrated.
Readable in 8 or more digits. Constancy
of 0.1 ppm/1 x 10-7 or more at 0°C to
40°C.
Instrument
Vectorscope
Condition
Must be calibrated.
Focal point
Lens
Flange-back
Lens
C mount lens
CS mount lens
Flange back
17.526 mm
12.5 mm
Dimension L
10 mm or less
5.5 mm or less
MODEL J6 x 11-22
22
2H6 x 12.5R
Manufacture CANON FUJINON
Focal length 11.5 - 69 mm 12.5 - 75 m
Zoom ratio 6:1 6:1
Zoom operation Manual Manual
Iris range F1.4 to close F1.2 to close
Iris control Manual Manual
Mount C mount C mount
Filter diameter ∅46 mm P = 0.75 mm ∅52 mm P = 0.75 mm

2-2
2.1.3 Required system for adjustments
2.1.4 Required instruments for adjustment
Note: Equipments marked with asterisk are not handled by parts department.
Equipments Specifications
Computer 486DX4/100MHz or higher micro processor (Recommended Pentium Processor)
Operating system Windows 95 or Windows 98
Memory 16M Byte or more
FDD 3.5 inch (1.44 MB) floppy diskette drive
I/O port Serial port
Hard disk unit 1 MB hard disk space
Program disk
PLSC1215 (For IBM-PC)
Lens* Interface cable
YTU93063
Conversion cable
YTU94066
(For IBM-PC)
Infinity adjustment lens
YTU92001B
Colour bar chart
YTU94133C
Gray scale chart
Camera stand
YTU94133A
Light box
YTU93096A
Color temp. Conversion filter* Conversion cable
(Example)
KODAK Wratten gelatin filter
•No. 80B + No. 80B (or equivalent)
•No. 80D + No. 82A (or equivalent)
•No. 81A + No. 81D (or equivalent)
•
No. CC30Y + No. CC30Y (or equivalent)
SC32124 YTU93079

2-3
2.2 STANDARD SETUP
2.3 SWITCH SETTING FOR ADJUSTMENT
Vetorscope Waveform
monitor (WFM) Color monitor
75 Ø
terminator 75 Ø terminator Oscilloscope
Computer
Windows 95 or 98
MONITOR
Supply
power
AC 24V/DC 12V
Connect
Conversion cable YTU94066
Conversion cable
SC32124
Interface cable YTU93063
PLSC1215
Remove the bottom cover of camera and
connect this connector to CN200 on the
PRO board.
Lens
Infinity adjustment lens
YTU92001B
Light box
YTU93096A
POWER SUPPLY
DC 12V
To install the camera in the Camera stand,
install Tripod base in the Upper cover.
COLOR VIDEO CAMERA
IRIS
VIDEO
DO
LH
LEVEL
• S100 (TERMINAL BOARD)
AGC ON/OFF
AES ON/OFF
BLC ON/OFF
AUTO/MANU
LL/INT.
PHASE/W.B
ON
OFF
OFF
AUTO
INT
W.B
VR500
S500
S100
REAR PANEL

2-4
2.4.3 What is “Initial Data”
The initial data loaded at “2.5 INITIALIZE”consists of preset
adjustment values. Therefore, once the adjustment procedure
is started, all adjustment should be done from beginning to the
end. Otherwise, the preset adjustment values would be written
as the adjustment data.
2.4.4 How to write adjusted data to EEPROM in camera
The adjustment values are written in the EEPROM of the cam-
era when you click “YES”from the “Are you sure to write
EEPROM?”message box which is displayed at the end of the
adjustment.
2.4 NOTES
2.4.1 Installation
To install the adjustment program, perform the following proce-
dure.
1) If you have any programs currently installed in the serial I/O
port, remove them.
2) Insert the adjustment program diskette into a floppy diskette
drive.
3) From Windows 95, select “Run” from the “Start” button
and type “a:\setup (or b:\setup)” depending on which drive
contains the diskette.
4) Follow the instructions on the screen.
2.4.2 How to adjusting the EVR
Click the “䊱”or “䊲”button to the right of the adjustment
items displayed on the screen to adjust EVR to the required
value.
If you abort the adjustment in the middle, the adjustment
values in the camera are not changed (the adjustment val-
ues which have been set before the start of the adjustment
remain unchanged).
These buttons
2.4.5 The test points on the PRO board
PRO board
TP203
TP202
TP201
TP200
TP204

2-5
Item Mode Adjustment procedure
Measuring
instrument &
Input signals
No.
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
2.5 INITIALIZE
1) Select either “TK-C720U.cor”for TK-
C720TPU or “TK-C720E.cor”for TK-C720TPE
to on Scenario file define adjustment.
2) Selecting either “NEXT”or “BACK”button
to be initialized the camera data.
All EVR are installed the initial data. (See 2.4.3)
2.6 ADJUSTMENT OF SSG
1) Select the “NEXT”button to display “fsc ad-
justment”on the title bar.
2) Adjust the EVRUSR with “䊱”and “䊲”buttons
to obtain the specified level at the measuring
point.
1 fsc
adjustment
Frequency
counter
*
TP203 [PRO]
- EVRUSR
[CAT: CLAMP, Byte: 5]
+
U-ver. 3.579545MHz
E-ver. 4.43361875MHz

2-6
1) Click the “NEXT”button to display “VSUB volt-
age”on the title bar.
2) Adjust the VSUB with “䊱”and “䊲”buttons to
obtain the specified level at the measuring
point.
1 VSUB voltage
adjustment
Digital voltmeter *
TP200 [PRO]
- VSUB [CAT: DCREF,
Byte: 3]
+ Specified voltage on
the back of the CCD.
* TP201 [PRO]
- VRGL [CAT: DCREF,
Byte:4]
+ Specified voltage on
the back of the CCD.
2 Reset voltage
adjustment
Oscilloscope
(H-rate:10:1)
Note:
For the specified voltage, check on the VRGL
and VSUB codes shown on the back of the
CCD, and find out the proper value accord-
ing to the correlation table of the “How to
Find Specified Voltage”as shown below.
Item Mode Adjustment procedure
Measuring
instrument &
Input signals
No.
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
2.7 ADJUSTMENT OF CCD
V RGL code
V SUB code
HOLDER PLATE
How to Find Specified Voltage
1) Click the “NEXT”button to display “Reset
voltage”on the title bar.
2) Adjust the VRGL with the “䊱”and “䊲”
buttons to obtain the specified voltage
of the waveform bottom edge at the
measuring point.
Note:
For the specified voltage, check on the VRGL
and VSUB codes shown the holder plate or
on the back of the CCD, and find out the
proper value according to the correlation ta-
ble of the “How to Find Specified Voltage”
appearing in the lower part of this page.

2-7
Item Mode Adjustment procedure
Measuring
instrument &
Input signals
No.
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
2.8 ADJUSTMENT OF VIDEO SIGNAL
1 White clip
adjustment
* MONITOR OUT
(75 ohm Termination)
- LENS IRIS
- DAVREFY
[CAT: DCREF, Byte: 1]
1) Select the “NEXT”button to display “Con-
tour level”on the title bar.
2) Adjust the lens iris to obtain the specified level
at the measuring point.
1) Select the “NEXT”button to display “White
clip”on the title bar.
2) Turn the lens iris so that the wavefrom of
grayscele is saturated as shown left figure.
3) Adjust the DAVREFY with “䊱”and “䊲”but-
tons to obtain the specified level at the meas-
uring point.
2 Contour level
adjustment
*
MONITOR OUT
(75 ohm Termination)
- LENS IRIS
U-ver.
E-ver.
0.79 Vp-p (110 IRE)
0.77 Vp-p (110%)
+
Oscilloscope
(H-rate: 10:1) or
W.F.M.
Gray scale chart
(Just scan size)
U-ver.
E-ver.
0.57 Vp-p (80IRE)
0.56 Vp-p (80%)
+
U-ver.
E-ver.
0.714 Vp-p (100IRE)
0.7 Vp-p (100%)
+
* MONITOR OUT
(75 ohm Termination)
- VHAPGH
[CAT: FIELD, Byte: 3]
Oscilloscope
(H-rate: 10:1) or
W.F.M.
Gray scale chart
(Just scan size)
3) Adjust the VHAPGH with “䊱”and “䊲”but-
tons to obtain the specified level at the meas-
uring point.

2-8
Item Mode Adjustment procedure
Measuring
instrument &
Input signals
No.
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
3 Setup level
adjustment
Oscilloscope
(H-rate: 10:1) or
W.F.M.
1) Select the “NEXT”button to display “Setup
level”on the title bar.
2) Turn the lens iris to be closed.
3) Adjust the SETUP with “䊱”and “䊲”but-
tons to obtain the specified level at the meas-
uring point.
4 Burst level
adjustment
Oscilloscope
(H-rate, 10:1) or
W.F.M.
1) Select the “NEXT”button to display “Burst
level”on the title bar.
2) Adjust the DAVREFC with “䊱”and “䊲”but-
tons to obtain the specified level at the meas-
uring point.
*
MONITOR OUT
(75 ohm Termination)
- DAVREFC
[CAT: DCREF, Byte: 2]
50 mVp-p
+
* MONITOR OUT
(75 ohm Termination)
- SETUP
[CAT: Fix, Byte: 3]
U-ver.
E-ver.
286 mVp-p (40IRE)
300 mVp-p
+

2-9
2.9 ADJUSTMENT OF WHITE BALANCE
1 White
balance
adjustment(1)
*
MONITOR OUT
(75 ohm Termination)
- LENS IRIS
1) Click the “NEXT”button.
2) Adjust the lens iris to obtain the specified level
of white chip at the measuring point.
3) Click either “䊱”or “䊲”button of the
“AWBPRER”, then “AWBCNT”and “INTGR”
data are appeared in the “Show Controls”
box.
4) Using the keyboard input the same value as
for the “AWBCNT”last 2 digits into the
AWBPRER box, press the “ENTER”button.
5) Using the keyboard input the same value as
for the “AWBCNT”last 2 digits into the WBR
box, press the “ENTER”button.
6) Using the keyboard input the same value as
for the “INTGR”last 2 digits into the
AWBPREB box, press the “ENTER”button.
7) Using the keyboard input the same value as
for the “INTGR”last 2 digits into the WBB
box, press the “ENTER”button.
1) Click the “NEXT”button.
2) Adjust the lens iris to obtain the specified level
of white chip at the measuring point.
3) Click the “䊱”or “䊲”button of the PRE2R,
then AWB CNT and INTGR data are appeared
in the Show Controls box.
4) Using the keyboard input the same value as
for the “AWBCNT”last 2 digits into the
PRE2R box, press the “ENTER”button.
5) Using the keyboard input the same value as
for the “INTGR”last 2 digits into the PRE2B
box, press the “ENTER”button.
2 White
balance
adjustment
(80B+80B)
*
MONITOR OUT
(75 ohm Termination)
- LENS IRIS
U-ver.
E-ver.
0.714 Vp-p (100IRE)
0.7 Vp-p (100%)
+
Gray scale chart
Oscilloscope
(H-rate, 10:1) or
W.F.M
Gray scale chart
filter
(No. 80B+80B)
Oscilloscope
(H-rate, 10:1) or
W.F.M.
Note:
When the AWBCNT and INTGR data are displayed in the show controls box by pressing the 䊲or 䊱button, data contain-
ing “B7”will be displayed in a case where there is a communication error. In this case, press the 䊲or 䊱button again and
input data values that do not contain “B7”.
Item Mode Adjustment procedure
Measuring
instrument &
Input signals
No.
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
Gray scale ch
U-ver.
E-ver.
0.714 Vp-p (100IRE)
0.7 Vp-p (100%)
+
Auto-white balance (1)
Oscilloscope or Waveform monitor
AWBPRER WBR AWBPREB WBB
&H29 &H51 &H51&H29
MCRDIP = 1
MCRAE = 1
AWBCNT = &H8229
INTGR = &H4B6151

2-10
3 White
balance
adjustment
(80D+82A)
*
MONITOR OUT
(75 ohm Termination)
- LENS IRIS
1) Click the “NEXT”button.
2) Adjust the lens iris to obtain the specified level
of white chip at the measuring point.
3) Click the “䊱”or “䊲”button of the
PRESETMWR, then AWBCNT and INTGR
data are appeared in the Show Controls box.
4) Using the keyboard input the same value as
for the “AWBCNT”last 2 digits into the
PRESETMWR box, press the “ENTER”but-
ton.
5) Using the keyboard input the same value as
for the “INTGR”last 2 digits into the
PRESETMWB box, press the “ENTER”but-
ton.
1) Click the “NEXT”button.
2) Adjust the lens iris to obtain the specified
level of white chip at the measuring point.
3) Click the “䊱”or “䊲”button of the RLOGAIN,
then AWBCNT data are appeared in the
“Show Controls”box.
4) Using the keyboard input the same value as
for the “AWBCNT”last 2 digits into the
RLOGAIN box, press the “ENTER”button.
4 White
balance
adjustment
(81A+81D)
*
MONITOR OUT
(75 ohm Termination)
- LENS IRIS
Gray scale chart
filter
(No. 80D+82A)
Oscilloscope
(H-rate, 10:1) or
W.F.M
Gray scale chart
filter
(No. 81A+81D)
1) Click the “NEXT”button.
2) Adjust the lens iris to obtain the specified
level of white chip at the measuring point.
3) Click the “䊱”or “䊲”button of the
AWBAJST1, then AWBCNT and INTGRdata
are appeared in the “Show Controls”box.
4) Make a note of the value of the last 2 digits
of the “AWBCNT”and “INTGR”data.
5) Attach the filter.
6) Press the “䊱”or the “䊲”button of the
AWBAJST1 to display the data of the
“AWBCNT”and “INTGR”from the “Show
Controls”box.
7) Make a note of the value of the last 2 digits
of the “AWBCNT”and “INTGR”data.
8) Calculate the value as described below in
“Formula”and input the result into the
AWBAJST1 box, press the “ENTER”button.
5 White
balance
adjustment
(CC30Y+CC30Y)
* MONITOR OUT
(75 ohm Termination)
- LENS IRIS
Gray scale chart
Item Mode Adjustment procedure
Measuring
instrument &
Input signals
No.
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
filter
(CC30Y+CC30Y)
“Formula”:
(The value of “AWBCNT”in step 7 + the value of the “INTGR”in step 7) minus
(The value of “AWBCNT”in step 4 + the value of the “INTGR”in step 4) + 1/A x (the value of “INTGR”in
step 7 –the value of “AWBCNT”in step 7)
Note:
1. “A”represents the hexadecimal numbers.
2. Calculate using the (hexadecimal) calculator provided as an OS accessory.
U-ver.
E-ver.
0.714 Vp-p (100IRE)
0.7 Vp-p (100%)
+
U-ver.
E-ver.
0.714 Vp-p (100IRE)
0.7 Vp-p (100%)
+
U-ver.
E-ver.
0.714 Vp-p (100IRE)
0.7 Vp-p (100%)
+

2-11
6 White
balance
adjustment (2)
–(no chart)
filter
(No.80B+80B)
Oscilloscope
(H-rate, 10:1) or
W.F.M.
*
MONITOR OUT
(75 ohm Termination)
- LENS IRIS
1) Click the “NEXT”button.
2) Adjust the lens iris to obtain the specified level
of center of carrier at the measuring point.
3) Click the “䊱”or “䊲”button of the PRERBL,
then AWBCNT and INTGR data are appeared
in the “Show Controls”box.
4) Using the keyboard input the same value as
for the value of the last 2 digits of the
“AWBCNT”into the PRERBL box, press the
“ENTER”button.
5) Using the keyboard input the same value as
for the third and fourth digits from the right of
the “AWBCNT”into the PRERBM box, press
the “ENTER”button.
6) Using the keyboard input the same value as
for the last 2 digits of “INTGR”into the
PRERBGL box, press the “ENTER”button.
7) Using the keyboard input the same values as
for the third and fourth digits from the right of
the “INTGR”into the PRERBGM box, press
the “ENTER”button.
Note:
When the AWBCNT and INTGR data are dis-
played in the show controls box by clicking
the 䊲or 䊱button of the PRERBL, the last
2 digits of data vary every time at the button
is pressed, but this is not a malfunction.
Please input the displayed values directly.
Item Mode Adjustment procedure
Measuring
instrument &
Input signals
No.
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
U-ver.
E-ver.
0.357 Vp-p (50IRE)
0.35 Vp-p (50%)
+
Center of carrier
Auto-white balance (5)
Oscilloscope or Waveform monitor
PRERBL PRERBM PRERBGL PRERBGM
&H71 &HA7 &H0A&HE5
AWBCO = 2
AWBCNT = &HE571
INTGR = &H220AA7

2-12
Item Mode Adjustment procedure
Measuring
instrument &
Input signals
No.
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
2.10 ADJUSTMENT OF CHROMA SIGNAL
1 Color level
and hue
adjustment
Oscilloscope
(H-rote, 10:1) or
W.F.M.
Color bar chart
*
MONITOR OUT
(75 ohm Termination)
- LENS IRIS
2.11 WRITE DATA
1) Select the “NEXT”button to display “Write
data to the EEPROM”on the title bar.
2) Press the “NEXT”button, then message box
are appeared.”Are you sure to write EEPROM?”
3) Select the “YES”button to write all data just
adjusted to memory in camera.
1 Write data
1) Select the “NEXT”button to display “Color
level and Hue”on the title bar.
2) Adjust the lens iris to obtain the specified level
of white part at the measuring point.
1) Select the “NEXT”button to display “chroma
suppress at high light”on the title bar.
2) Turn the lens iris so that the wevefome of
gray scale is saturated as shown left figure.
3) Adjust the CSHLV with “䊱”and “䊲”but-
tons to minimize carrier leakage on saturated
signal.
2 Chroma
suppress
adjustment
Oscilloscope
(H-rate, 10:1) or
W.F.M
Gray scale chart
*
MONITOR OUT
(75 ohm Termination)
- CSHLV
[CAT: FIELD, Byte: 4]
+ Minimum carrier
leakage.
U-ver.
E-ver.
0.57 Vp-p (80IRE)
0.56 Vp-p (80%)
+
- RY GAIN
[CAT: FIELD, Byte: 8]
- RYHUE
[CAT: FIELD, Byte: 10]
- BYGAIN
[CAT: FIELD, Byte: 9]
- BYHUE
[CAT:FIELD, Byte:11]
[NTSC] [PAL]
Red
Yellow
Yellow
Red
3) Adjust the RYGAIN, RYHUE, BYGAIN and
BYHUE with “䊱”and “䊲”buttons to obtain
the specified position at the measuring posi-
tion.
LENS OPEN

Printed in Japan
(S) T, A
VICTOR COMPANY OF JAPAN, LIMITED
Focus chart

SECTION 3
CHARTS AND DIAGRAMS
䡵REPLACING SUBMINIATURE “CHIP” PARTS
• Some resistors, shorting jumpers (0 ohm resistance), ceramic
capacitors, transistors, and diodes are chip parts. These chip
parts cannot be reused after they are once removed.
• Chip resistors used in some circuits are of high precision
type having little error in resistance.
To demonstrate the full capacity of this camera head, place
an order for proper parts referring to the diagrams and parts
lists in the sections 5.
• Soldering cautions:
1) Do not apply heat for more than 3 seconds.
2) Avoid using a rubbing stroke when soldering.
3) Discard removed chips; do not reuse them.
4) Supplementary cementing is not required.
5) Use care not to scratch or otherwise damage the chips.
• Definistion of the (A) and the (B) or circuit boards dia-
grams
(A) : Side on which discrete parts are assembled.
(B) : Side on which only chip parts are assembled.
• Transistors are:
䡵SCHEMATIC DIAGRAM NOTES
• Schematic safety precaution
!Parts are safety related parts.
When replacing them, be sure to use the specified parts.
• Voltage and waveform measurements.
Voltage: Measured with digital voltmeter in DC range;
iris closed.
• Waveform: Color bars illuminated more than 4000lux at
3200K lighting.
• Terminal logic
Top bar of terminal name show input or output logic.
Top bar shows, the control circuit become active at nega-
tive (low) logic input for example.
B
C
E
2SA1576A
MSB1218A
B
C
E
2SC4681
MSD1819A
C
BE
1
2
3
1
2
3
6
5
4
6
5
4
E
E
B
E
E
EE
B
B
C
B
B
C
C
C
C
B
C
XP6401
XP6534
3-1
3-1
3.1 OVERALL WIRING DIAGRAM
2
1
4
3
2
1
Vcc
(See Sec. 2.2)
Page 3-4
CN200
CN5 CN5
CN6
TP BOARD
06
CN6
GND
Sout
Sin
01 02
05
03
04
Page 3-3
Page 3-6
Page 3-8
Page 3-7
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GND
GND
VBS
+18V
GND
+8.5V
GND
GND
GND
GND
MONITOR OUT
GND
TP OUT(+)
TP OUT(–)
GND
GND
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TP OUT(+)
TP OUT(–)
2
1
Page 3-9
MONITOR