3.13 POWER CIRCUIT BOARD (TK-C401G) ...................... 3-8
3.14 BLOCK DIAGRAM of IC’S
Important Safety Precautions
Connector
Metal sleeve
Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes
of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the
following precautions when a set is being serviced.
Precautions during Servicing
1. Locations requiring special caution are denoted by labels and
inscriptions on the cabinet, chassis and certain parts of the
product. When performing service, be sure to read and comply with these and other cautionary notices appearing in the
operation and service manuals.
2. Parts identified by the
critical for safety.
Replace only with specified part numbers.
Note: Parts in this category also include those specified to com-
ply with X-ray emission standards for products using
cathode ray tubes and those specified for compliance
with various regulations regarding spurious radiation
emission.
3. Fuse replacement caution notice.
Caution for continued protection against fire hazard.
Replace only with same type and rated fuse(s) as specified.
4. Use specified internal wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
5. Use specified insulating materials for hazardous live parts.
Note especially:
1) Insulation Tape3) Spacers5) Barrier
2) PVC tubing4) Insulation sheets for transistors
6. When replacing AC primary side components (transformers,
power cords, noise blocking capacitors, etc.) wrap ends of
wires securely about the terminals before soldering.
symbol and shaded ( ) parts are
12. Crimp type wire connector
In such cases as when replacing the power transformer in sets
where the connections between the power cord and power
transformer primary lead wires are performed using crimp type
connectors, if replacing the connectors is unavoidable, in order to prevent safety hazards, perform carefully and precisely
according to the following steps.
1) Connector part number : E03830-001
2) Required tool : Connector crimping tool of the proper type
which will not damage insulated parts.
3) Replacement procedure
(1) Remove the old connector by cutting the wires at a point
close to the connector.
Important : Do not reuse a connector (discard it).
cut close to connector
Fig.3
(2) Strip about 15 mm of the insulation from the ends of
the wires. If the wires are stranded, twist the strands to
avoid frayed conductors.
15 mm
7. Observe that wires do not contact heat producing parts
8. Check that replaced wires do not contact sharp edged or
9. When a power cord has been replaced, check that 10-15 kg of
10. Also check areas surrounding repaired locations.
11. Products using cathode ray tubes (CRTs)
Fig.1
(heatsinks, oxide metal film resistors, fusible resistors, etc.)
pointed parts.
force in any direction will not loosen it.
Power cord
Fig.2
In regard to such products, the cathode ray tubes themselves,
the high voltage circuits, and related circuits are specified for
compliance with recognized codes pertaining to X-ray emission.
Consequently, when servicing these products, replace the cathode ray tubes and other parts with only the specified parts.
Under no circumstances attempt to modify these circuits.
Unauthorized modification can increase the high voltage value
and cause X-ray emission from the cathode ray tube.
Fig.4
(3) Align the lengths of the wires to be connected. Insert
the wires fully into the connector.
Fig.5
(4) As shown in Fig.6, use the crimping tool to crimp the
metal sleeve at the center position. Be sure to crimp fully
to the complete closure of the tool.
1.25
2.0
5.5
Fig.6
(5) Check the four points noted in Fig.7.
Not easily pulled free
Wire insulation recessed
more than 4 mm
Fig.7
Crimping tool
Crimped at approx. center
of metal sleeve
Conductors extended
1
p
Safety Check after Servicing
Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been
returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards.
1. Insulation resistance test
Confirm the specified insulation resistance or greater between power cord plug prongs and
externally exposed parts of the set (RF terminals, antenna terminals, video and audio input
and output terminals, microphone jacks, earphone jacks, etc.). See table 1 below.
2. Dielectric strength test
Confirm specified dielectric strength or greater between power cord plug prongs and exposed
accessible parts of the set (RF terminals, antenna terminals, video and audio input and output
terminals, microphone jacks, earphone jacks, etc.). See table 1 below.
3. Clearance distance
When replacing primary circuit components, confirm specified clearance distance (d), (d’) between soldered terminals, and between terminals and surrounding metallic parts. See table 1
below.
Chassis
Fig. 8
4. Leakage current test
Confirm specified or lower leakage current between earth ground/power cord plug prongs
and externally exposed accessible parts (RF terminals, antenna terminals, video and audio
input and output terminals, microphone jacks, earphone jacks, etc.).
Measuring Method : (Power ON)
Insert load Z between earth ground/power cord plug prongs and externally exposed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See figure 9 and
following table 2.
5. Grounding (Class 1 model only)
Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts (Video in,
Video out, Audio in, Audio out or Fixing screw etc.).
Measuring Method:
Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts. See figure 10 and grounding specifications.
AC inlet
Earth pin
Exposed accessible part
Grounding Specifications
Region
USA & Canada
Europe & Australia
Externally
exposed
accessible
Grounding Impedance (Z)
d
d'
art
≤
Z 0.1 ohm
≤
Z 0.5 ohm
Power cord,
primary wire
Z
V
Fig. 9
ab
c
A
Milli ohm meter
Fig. 10
AC Line Voltage
100 V
100 to 240 V
110 to 130 V
110 to 130 V
200 to 240 V
100 V
110 to 130 V
110 to 130 V
220 to 240 V
Note: These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.
Region
JapanR 1 MΩ/500 V DC
USA & Canada
Europe & AustraliaR 10 MΩ/500 V DC
RegionLoad Z
Japan
USA & Canada
Europe & Australia
Table 2 Leakage current specifications for each region
Insulation Resistance (R)
≤
–
≤
Table 1 Specifications for each region
1 kΩ
0.15 µF
1.5 kΩ
2 kΩ
50 kΩ
Dielectric Strength
AC 1 kV 1 minute
AC 1.5 kV 1 miute
AC 900 V 1 minute
AC 3 kV 1 minute
AC 1.5 kV 1 minute
i1 mA rmsExposed accessible parts
i0.5 mA rms
i0.7 mA peak
i2 mA dc
i0.7 mA peak
i2 mA dc
≤
≤
≤
≤
≤
≤
(Class 2)
(Class 1)
Clearance Distance (d), (d')
≤
d, d' 3 mm
≤
d, d' 4 mm
≤
d, d' 3.2 mm
≤
d 4 mm
≤
d' 8 mm (Power cord)
≤
d' 6 mm (Primary wire)
a, b, cLeakage Current (i)AC Line Voltage
Exposed accessible parts
Antenna earth terminals
Other terminals
2
SECTION 1
B
B
2
2
TK-C401TK-C400
SERVICE CAUTIONS AND DISASSEMBLY
1.1REPLACEMENT OF FUSE
Before replacing the fuse, the reason why it blew should be
investigated to prevent trouble from spreading. The malfunction should be repaired before replacing the fuse.
When replacing the fuse, make sure to disconnect the power
supply from the camera beforehand and to replace it with new
one of the specified part number for safety and protection of
the set.
1) Remove two screws 1, and then open the rear panel A and
escutcheon B.
1
1
2) Then, a fuse F1 on the PS/POWER board is exposed.
PS board
A
Fig. 1-1
F1
1
B
POWER board
1
TK-C401TK-C400
B
1.2CARD FIT CABLE
Pay careful attention to the connecting side of the card fit cable. When connecting it, insert it so as to contact the copper
leaf on its edge to the connector's conductive surface as shown
in Fig. 1-3.
When disconnecting the card fit cable, pull the cable stoppers
in the direction of the arrows. To secure the connection, push
the cable stoppers in the reverse direction of the arrows after
inserting the cable.
A
Fig. 1-3
1.3REMOVAL OF CIRCUIT BOARDS
1) Remove three screws 2 and then detach the bottom cover
B.
TK-C400
When replacing a fuse, make sure to use new one of the specified part number for safety and protection of the set.
5) Disconnect a connector F, then remove the EE board.
3
PRO board
D
C
Fig. 1-5 Removal of PRO board
3) Disconnect the connector C and D, and then remove the
PRO board.
F
Fig. 1-7
6) Remove a screw 5, then remove the TERMINAL board with
rear panel G.
In case of TK-C401, remove a screw 6 and connector H
before removing the TERMINAL board.
4) Remove a screw 4 and disconnect a connector E, then lift
the EE board.
EE board
E
4
Fig. 1-6 Removal of EE board
G
G
55
TK-C400TK-C401
Fig. 1-8 Removal of TERMINAL board
TERMINAL board
6
G
1-2
H
Fig. 1-9 Removal of TERMINAL board (TK-C401)
7) Remove a screw 7, then slide the PS/POWER board in the
direction of arrow to remove it.
7
Fig. 1-10 Removal of PS/POWER board (1)
8) Remove two screws 8, then remove the heat sink J and
chassis K.
1.4REPLACEMENT OF COLOR CCD IMAGE SENSOR
䡵 The CCD image sensor is not interchangeable with any-
thing other than the specified one.
䡵 Be careful in handling a new image sensor neither to leave
fingerprints on the glass surface nor to make it stained with
grease.
To clean dust and greasy stain, breathe out to mist the glass
surface and gently wipe it with cotton swab, etc. (Do not
use alcohol and the like.)
䡵 After replacement of the CCD image sensor, the camera
needs to undergo electrical adjustment.
䡵 The image sensor has a weak characteristic in electrostatic
destruction. When replacing, make sure of electrostatic
shielding of the CCD image sensor.
䡵 For a while after removing the image sensor, there are elec-
tric charge remaining at the circuit terminals. If a new image sensor is set into the socket in such a condition, it may
damage it in a moment because of stored electric charge.
When replacing the image sensor, wait a few (2 to 3) minutes after removing it before setting new one into the
socket.
PS/POWER board
8
J
K
Fig. 1-11 Removal of PS/POWER board (2)
1.4.1 Removing of CCD image sensor
1) Remove the bottom cover.
(See the subsection 1.3.1))
2) Disconnect the connector L.
L
Fig. 1-12
1-3
3) Remove two screws 9, then remove the front frame M.
9
1.4.2 Installing of CCD image sensor
Note:
Before installation, take notes of the code of the CCD
image sensor. It needs to refer to this code for adjustment.
1st. pin Index
V
RGL
code
V
SUB
code
M
Fig. 1-13
4) Remove two screws 10, and then the CCD board has removed with the CCD image sensor.
10
CCD board
Fig. 1-14
5) Detach the CCD image sensor and sensor holder N slowly
in the direction of the arrow.
ICX0**AK-
A
1) When installing the CCD image sensor, pay attention to its
orientation.
2) For installing a new CCD image sensor to the set, perform
reassembling parts in the reverse order of removing.
3) Adjust the V
SUB and VRGL voltage. (See subsection 2.7)
Fig. 1-15
1-4
N
CCD board
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
IC 200 CCD Image sensorICX 054AK-A: for TK-C400U
ICX 055AK-A: for TK-C400E/TK-C401EG
• PRO board
IC205 EEPROMAK6420AM
2.1 REQUIRED MEASURING INSTRUMENTS FOR ADJUSTMENTS
2.1.1 Required measuring instruments for adjustments
Instrument
Oscilloscope
Frequency counter
2.1.2 Applicable lens for adjustments
• 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)
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.
Condition
Focal point
Lens
Flange-back
Instrument
Vectorscope
Digital voltmeter
Lens
C mount lens
CS mount lens
Condition
Must be calibrated.
Input impedance of 10 M ohm or more,
and calibrated.
Flange back
17.526 mm
12.5 mm
Dimension L
10 mm or less
5.5 mm or less
MODELJ6 x 11-
ManufactureCANONFUJINON
Focal length11.5 - 69 mm12.5 - 75 m
Zoom ratio6:16:1
Zoom operationManualManual
Iris rangeF1.4 to closeF1.2 to close
Iris controlManualManual
MountC mountC mount
Filter diameter∅46 mm P = 0.75 mm∅52 mm P = 0.75 mm
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.)
22
2 (HZ-H8061)H6 x 12.5R
22
2-1
2.1.3 Required system for adjustments
EquipmentsSpecifications
Computer486DX4/100MHz or higher micro processor (Recommended Pentium Processor)
Operating systemWindows 95 or Windows NT 3.51
Memory16M Byte or more
FDD3.5 inch (1.44 MB) floppy diskette drive
I/O portSerial port
Hard disk unit1 MB hard disk space
2.1.4 Required instruments for adjustment
Program disk
(For IBM-PC)
PLSC1215
Infinity adjustment lens
YTU92001B
Light box
YTU93072
Lens*
(Ex: HZ-H8061)
Color bar chart
YTU92001-051
Interface cable
(For IBM-PC)
YTU93063
Gray scale chart
YTU92001-052
Color temp. Conversion filter*Waveform monitor (W.F.M.)*
(Example)
KODAK Wratten gelatin filter
• No. 80B + No. 80B (or equivalent)
• No. 80D + No. 82A (or equivalent)
• No. 81A + No. 81D (or equivalent)
Conversion cable
YTU94066
White balance chart
YTU92001-053
Note: Equipments marked with asterisk are not handled by parts department.
2-2
2.2 STANDARD SETUP
Supply power
AC 24V/DC 12V
TK-C400
REAR
PANEL
DC output
Interface
terminal
TK-C401EG
REAR
PANEL
75 ohm
terminator
Supply power
AC230V
VetorscopeWaveform
monitor (WFM)
Color monitor
75 ohm
terminator
Oscilloscope
PLSC1215
Computer
Windows 95 or NT
2.3 SWITCH SETTING FOR ADJUSTMENT
REAR PANEL
SW100
• SW100 (TERMINAL BOARD)
PHASE/W.B
LL/INT.
ATW/MANU
BLC ON/OFF
AES ON/OFF
AGC ON/OFF
VR500S500
W.B
INT
ATW
OFF
OFF
ON
2-3
2.4 NOTES
2.4.1 Installation
To install the adjustment program, perform the following procedure.
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.
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 camera when you click “YES” from the “Are you sure to write
EEPROM?” message box which is displayed at the end of the
adjustment.
These buttons
If you abort the adjustment in the middle, the adjustment
values in the camera are not changed (the adjustment values which have been set before the start of the adjustment
remain unchanged).
2-4
No.
ItemModeAdjustment procedure
2.5 INITIALIZE
Measuring
instrument &
Input signals
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
1) Select either “TK-C400U.cor” for TK-C400U
or “TK-C400E.cor” for TK-C400E/401EG 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
1fsc
adjustment
Frequency
counter
*
TP207 [PRO]
-
EVRUSR
[CAT: CLAMP, Byte: 5]
+
U-ver.3.579545MHz
E-ver.4.43361875MHz
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.
2-5
Measuring
No.
ItemModeAdjustment procedure
instrument &
Input signals
2.7 ADJUSTMENT OF CCD
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
1VSUB voltage
adjustment
2Reset voltage
adjustment
Digital voltmeter*
Oscilloscope
(H-rate:10:1)
TP205 [PRO]
-
VSUB [CAT: DCREF,
Byte: 3]
+
Specified voltage on
the back of the CCD.
*
TP214 [PRO]
-
VRGL [CAT: DCREF,
Byte:4]
+
Specified voltage on
the back of the CCD.
1) Select the “NEXT” button to display “VSUB
voltage” on the title bar.
2) Adjust the VSUB with “䊱” and “䊲” buttons to
obtain the specified level at the measuring
point.
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 according to the correlation table of the “How to
Find Specified Voltage” as shown below.
1) Select the “NEXT” button to display “Reset
voltage” on the title bar.
2) Adjust the VRGL with “䊱” and “䊲 ” buttons to obtain the specified level at the measuring point.
How to Find Specified Voltage
Note:
For the specified voltage, check on the V
RGL
and VSUB codes shown on the back of the
CCD, and find out the proper value according to the correlation table of the “How to
Find Specified Voltage” appearing in the
lower part of this page.
2-6
Measuring
No.
ItemModeAdjustment procedure
instrument &
Input signals
2.8 ADJUSTMENT OF VIDEO SIGNAL
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
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” buttons to obtain the specified level at the measuring point.
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.
*
VIDEO OUT (75 ohm
Termination)
-
VHAPGH
[CAT: FIELD, Byte: 3]
+
U-ver.
0.714 Vp-p (100IRE)
E-ver.
0.7 Vp-p (100%)
3) Adjust the VHAPGH with “䊱” and “䊲” buttons to obtain the specified level at the measuring point.
2-7
No.
Measuring
ItemModeAdjustment procedure
instrument &
Input signals
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
3Setup level
adjustment
4Burst level
adjustment
Oscilloscope
(H-rate: 10:1) or
W.F.M.
Oscilloscope
(H-rate, 10:1) or
W.F.M.
*
VIDEO OUT
(75 ohm Termination)
-
SETUP
[CAT: Fix, Byte: 3]
50 mVp-p
+
*
VIDEO OUT
(75 ohm Termination)
-
DAVREFC
[CAT: DCREF, Byte: 2]
+
U-ver.
286 mVp-p (40IRE)
E-ver.
300 mVp-p
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” buttons to obtain the specified level at the measuring point.
1) Select the “NEXT” button to display “Burst
level” on the title bar.
2) Adjust the DAVREFC with “䊱” and “䊲” buttons to obtain the specified level at the measuring point.
2-8
Measuring
No.
ItemModeAdjustment procedure
instrument &
Input signals
2.9 ADJUSTMENT OF WHITE BALANCE
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
1White
balance
adjustment(1)
Gray scale chart
Oscilloscope
(H-rate, 10:1) or
W.F.M
Auto-white balance (1)
Oscilloscope or Waveform monitor
*
VIDEO OUT
(75 ohm Termination)
-
LENS IRIS
+
U-ver.
E-ver.
MCRDIP = 1
MCRAE = 1
AWBCNT = &H8229
INTGR = &H4B6151
0.714 Vp-p (100IRE)
0.7 Vp-p (100%)
1) Select the “NEXT” button to display “White
balance (1)” on the title bar.
2) Adjust the lens iris to obtain the specified level
of white chip at the measuring point.
3) Press either “䊱” or “䊲” button of the
“AWBPRER”, then “AWBCNT” and “INTGR”
data are appeared in the “Show Controls”
box.
4) Press the “䊱” or “䊲” button of the
“AWBPRER” to be same data of AWB CNT’s
data. (last 2 digit)
5) Press the “䊱” or “䊲” button of the “WBR”
to be the same data of AWB CNT’s data. (last
2 digit)
6) Press the “䊱” or “䊲” button of the
AWBPREB to be the same data of INTGR’s
data. (last 2 digit)
7) Press the “䊱” or “䊲” button of the WBB to
be same data of INTGR’s data. (last 2 digit)
2White
balance
adjustment(2)
AWBPRERWBRAWBPREBWBB
&H29&H51&H51&H29
*
Gray scale chart
filter
(No. 80B+80B)
VIDEO OUT
(75 ohm Termination)
-
LENS IRIS
Oscilloscope
(H-rate, 10:1) or
W.F.M.
+
U-ver.
E-ver.
0.714 Vp-p (100IRE)
0.7 Vp-p (100%)
1) Select the “NEXT” button to display “White
balance (2)” on the title bar.
2) Adjust the lens iris to obtain the specified level
of white chip at the measuring point.
3) Press the “䊱” or “䊲” button of the PRE2R,
then AWB CNT and INTGR data are appeared
in the Show Controls box.
4) Press the “䊱” or “䊲” button of the PRE2R
to be same data of AWB CNT’s data. (last 2
digit)
5) Press the “䊱” or “䊲” button of the PRE2B
to be same data of INTGR’s data. (last 2 digit)
2-9
No.
Measuring
ItemModeAdjustment procedure
instrument &
Input signals
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
3White
balance
adjustment(3)
Gray scale chart
filter
(No. 80D+82A)
Oscilloscope
(H-rate, 10:1) or
W.F.M
*
VIDEO OUT
(75 ohm Termination)
-
LENS IRIS
+
U-ver.
0.714 Vp-p (100IRE)
E-ver.
0.7 Vp-p (100%)
1) Select the “NEXT” button to display “White
balance (3)” on the title bar.
2) Adjust the lens iris to obtain the specified level
of white chip at the measuring point.
3) Press the “䊱” or “ 䊲” button of the
PRESETMWR, then AWBCNT and INTGR
data are appeared in the Show Controls box.
4) Press the “䊱” or “ 䊲” button of the
PRESETMWR to be same data of AWB CNT’s
data. (last 2 digit)
5) Press the “䊱” or “ 䊲” button of the
PRESETMWB to be same data of INTGR’s
data. (last 2 digit).
4White
balance
adjustment (4)
Gray scale chart
filter
(No. 81A+81D)
*
VIDEO OUT
(75 ohm Termination)
-
LENS IRIS
+
U-ver.
0.714 Vp-p (100IRE)
E-ver.
0.7 Vp-p (100%)
1) Select the “NEXT” button to display “White
balance (4)” on the title bar.
2) Adjust the lens iris to obtain the specified
level of white chip at the measuring point.
3) Press the “䊱” or “䊲” button of the
RLOGAIN, then AWBCNT data are appeared
in the “Show Controls” box.
4) Press the “䊱” or “䊲” button of the
RLOGAIN to be same data of AWBCNT’s
data. (last 2 digit)
2-10
No.
Measuring
ItemModeAdjustment procedure
instrument &
Input signals
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
5White
balance
adjustment (5)
White balance
chart
filter
(No.80B+80B)
Oscilloscope
(H-rate, 10:1) or
W.F.M.
*
VIDEO OUT
(75 ohm Termination)
-
LENS IRIS
+
Center of carrier
U-ver.
0.357 Vp-p (50IRE)
E-ver.
0.35 Vp-p (50%)
1) Select the “NEXT” button to display “White
balance (5)” on the title bar.
2) Adjust the lens iris to obtain the specified level
of center of carrier at the measuring point.
3) Press the “䊱” or “䊲” button of the PRERBL,
then AWBCNT and INTGR data are appeared
in the “Show Controls” box.
4) Press the “䊱” or “䊲” button of the PRERBL
to be same data of AWBCNT’s data. (last 2
digit)
5) Press the “䊱” or “䊲” button of the PRERBM
to be same data of AWBCNT’s data. (Middle
2 digit)
6) Press the “䊱” or “䊲” button of the
PRERBGL to be same data of INTGR’s data
(last 2 digit)
7) Press the “䊱” or “䊲” button of the
PRERBGM to same data of INTGR’s data. (3rd
and 4th digit from right)
Auto-white balance (5)
Oscilloscope or Waveform monitor
PRERBLPRERBMPRERBGLPRERBGM
&H71&HA7&H0A&HE5
AWBCO = 2
AWBCNT = &HE571
INTGR = &H220AA7
2-11
Measuring
No.
ItemModeAdjustment procedure
instrument &
Input signals
2.10 ADJUSTMENT OF CHROMA SIGNAL
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
1Color level
and hue
adjustment
Yellow
Oscilloscope
(H-rote, 10:1) or
W.F.M.
Color bar chart
Red
Yellow
*
VIDEO OUT
(75 ohm Termination)
-
LENS IRIS
+
U-ver.
0.57 Vp-p (80IRE)
E-ver.
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]
Red
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.
3) Adjust the RYGAIN, RYHUE, BYGAIN and
BYHUE with “䊱” and “䊲” buttons to obtain
the specified position at the measuring position.
2Chroma
suppress
adjustment
2.11 WRITE DATA
1Write data
[NTSC][PAL]
Oscilloscope
(H-rate, 10:1) or
W.F.M
Gray scale chart
LENS OPEN
*
VIDEO OUT
(75 ohm Termination)
-
CSHLV
[CAT: FIELD, Byte: 4]
+
Minimum carrier
leakage.
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” buttons to minimize carrier leakage on saturated
signal.
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.
2-12
TK-C400U/TK-C400E/TK-C401EG
VICTOR COMPANY OF JAPAN, LIMITED
No. 6675
Printed in Japan
(S) T. A
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 diagrams
(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 negative (low) logic input for example.
Parts identified by the ! symbol are criticaI for safety. Replace only with specified parts numbers.
For maximum reliability and performance, all other replacement parts should be identical to those specified.
NOTE:
● Parts not denoted by parts numbers are not supplied by JVC.
● Abbreviations in this list are as follows:
RESISTORS
In the “Description” column:
All resistance values are in ohms (Ω).
k expresses kilo-ohm (1 000 ohms, kΩ).
M expresses mega-ohm (10
6
ohms, MΩ).
CAPACITORS
In the “Description” column:
All capacitance values are in microfarad (
otherwise indicated.
p expresses picofarad (10
–12
farad,pF).
µ
F) unless
In the “Parts Name”column:
CAR.RESISTOR : Carbon Resistor
C.M.F.RESISTOR : Constant Metalized Film Resistor
COMP.RESISTOR : Composition Resistor
FUSI.RESISTOR : Fusible Resistor
M.F.RESISTOR: Metal Film Resistor
M.G.RESISTOR : Metal Graze Resistor
M.P.RESISTOR: Metal Plate Resistor
O.M.F.RESISTOR : Oxide Metalized Film Resistor
TRIM.RESISTOR : Trimerer Resistor
U.F.RESISTOR: Non-inflammable Resistor
VAL.RESISTOR: Valiable Resistor
W.W.RESISTOR : Wire Wound Resistor
ln the “Description” column of the parts list, (U) means the parts for the U version while
Note:
(E) is for the E version.
Symbol
No.
Part No.Part NameDescription
In the “Parts Name” column:
CER.CAPACITOR: Ceramic Capacitor
E.CAPACITOR: Electrolytic Capacitor
FILM CAPACITOR : Film Capacitor
M.F.CAPACITOR: Metalized Film Capacitor
MICA CAPACITOR : Mica Capacitor
MPP CAPACITOR : Metalized PolyPropylene Capacitor
MPPS CAPACITOR : Metalized PolyPhenylene Sulfied film
C15QTMC1HM-105Z-R E.CAPACITOR150V
C16QTMC1CM-337Z-R E.CAPACITOR33016V
C18QTMC1CM-476Z-R E CAPACITOR4716V
C19QTMA1CM-108-R E.CAPACITOR100016V
C21QTMC1CM-477Z-R E CAPACITOR47016V
C22QTMC1CM-337Z-R E.CAPACITOR33016V
C24QTMC1CM-476Z-R E CAPACITOR4716V
C25QTMC1EM-476Z-R E CAPACITOR4725V
C27QTMC1EM-476Z-R E CAPACITOR4725V
C28NCF21HZ-104XCER.CAPACITOR0.150V
The wires in this mains lead are coloured in accordance with the following code:
GREEN-AND-YELLOW: EARTH
BLUE:NEUTRAL
BROWN:LIVE
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying
the terminals in your plug, proceed as follows. The wire which is coloured GREEN-AND-YELLOW must be connected to the
terminal in the plug which is marked with the letter E or by the safety earth symbol G or coloured GREEN or GREEN-ANDYELLOW. The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured
BLACK. The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or
coloured RED.
The lightning flash with arrowhead symbol, within an equi-lateral triangle, is intended to alert the
user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may
be of sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of
important operating and maintenance (servicing) instructions in the literature accompanying the
appliance.
For USA and CANADA
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
For Customer Use:
Enter below the Serial No. which is located on the top of the body.
Retain this information for future reference.
Model No. TK-C400 or TK-C401
Serial No.
INFORMATION (FOR CANADA) RENSEIGNEMENT (POUR LE CANADA)
This Class [B] digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe [B] respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
Information for USA
This device complies with Part 15 of the FCC Rules.
Changes or modifications not approved by JVC could void the user’s authority to operate the equipment.
LensFlange back (c)Dimension (b)
C mount lens17.526mm10mm or less
CS mount lens12.5mm5.5mm or less
Lens DC IRISVIDEO IRIS
Pin No.(does not contain EE amprifire)(contain EE amprifire)
1Brake
–
9.5V [max 50mA]
2Brake
+
NC
3Drive
+
VIDEO
4Drive
–
GND
COLOR VIDEO CAMERAInstructions
Thank you for purchasing the JVC color video camera.
To obtain the best results from your new camera, read these instructions carefully before use;
retain the manual for future reference.
WARNING:
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
Due to design modification, data given in this instruction book are subject to possible change
without prior notice.
PRECAUTIONS
• If an AGC switch is turned on, the sensitivity increases automatically in dark places. It is not a
failure when the image looks grainy.
• If a zoom lens is used, check the back focus before mounting the camera. This also applies to
lens ALC and LEVEL. (See the instructions on lenses for details.)
• If a high-intensity object (such as a lamp) is shot, the image on the screen may have vertical
lines (smear) or blur (blooming) at its periphery (especially in AES mode). This is a characteristic of the CCD, and is not a defect.
• If an EE lens is used, set the automatic electronic shutter switch (AES) to OFF. If set to ON,
flickering may occur. If a manual iris lens is used, set the AES to ON.
• When used in hot places, vertical lines may appear on the screen of this camera. This is a
characteristic of the CCD and not a failure of the camera.
• The automatic tracking system may not function properly when shooting with non-standard
lighting or lighting with a color temperature which exceeds the capability of the camera. In
such a case, set to the
“MANU” position.
• If the camera subject is a single solid color (other than white), the auto white circuit will nor-
mally attempt to change this color to white. In the case of this camera, if it cannot make a
correct prediction, the previous white balance setting will be maintained until the subject colors
become more varied.
• Where there are strong electromagnetic waves or magnetism, for example near a radio or TV
transmitter, transformer, motor, etc., the picture may contain noise and the colors may be
incorrect.
MOUNTING A LENS
1. Before mounting a lens, check whether it is a C-mount or CS-mount lens.
If a C-Mount lens is used, loosen the back focus locking screw (a), and then turn the
back focus adjustment ring with a screw driver or other tool with a tapered tip in the
direction indicated by the arrow to change the mounting method.
2. Dimension (b) of the lens shown in the illustration must be as shown in the table
below. If (b) exceeds the value in the table, it may damage the inside of the camera or
correct mounting may be impossible; never use such lenses. Do not attach the Cmount lens when using a CS-mount.
The F mark indicates a focal point.
3. Mount the lens on the camera by turning the lens clockwise. Adjust its posiiton.
4. When using an auto-iris lens with an EE amplifier, turn the switch to the
“VIDEO”
side. When no EE amplifier is equipped, turn the switch to the
“DC” side.
5. If the lens has an auto-iris mechanism,
Connect the lens cable after checking the pin arrangement.
If the lens cable has a different type of plug, use the 4-pin plug supplied.
6. If the cable is too long, house it in the camera mounting bracket.
CONNECTION
1. When the camera is powered, the POWER LED lights up.
TK-C400U/E only
• Never connect the DC 12V and AC 24V power inputs simultaneously.
• Be sure to observe the correct +,
– polarity when connecting a DC 12V power input.
TK-C401EG only
When you use this camera, the socket-outlet must be installed near the equipment to make
disconnect on easily.
2. Connect to a video monitor, etc. (75Ω)
3. To install the camera onto a tripod, fixing unit, or pan/tilt unit, use the fall-preventive
socket (d) shown in the illustration.
Special precautions must be taken for mounting the camera on a wall or a ceiling.
We are not liable for any damage caused by improper installation.
4. Installation of camera
U type
• Mounting from the bottom
This camera is originally designed to be mounted from the bottom, as shown 1. The hole is
standard photographic pan-head screw size (1/4"-20). Example the Fixing unit or Pan/Tilt unit.
• Mounting from the top
Remove the CAMERA MOUNTING BRACKET (e) from the bottom of the camera by removing
three fixing screws as shown 2. Attach the CAMERA MOUNTING BRACKET (e) to the top,
then mount the camera on the Fixing Unit as shown 3. Make sure that three original screws
are used when mounting the CAMERA MOUNTING BRACKET (e); longer type screws (over
5mm) may damage inner components.
(This camera is used indoor and under similar conditions.)
E type
The E/EG type has been factory-shipped as shown in 3, and so follow the procedure in reverse
order when the CAMERA MOUNTING BRACKET is to be replaced.
A
(a)
(b)
(c)
F
C
COLOR VIDEO CAMERA
B
D
E
F
(d)
w
q
e
CAMERA typepower
TK-C400UAC 24V
~
(class 2 only) or DC 12V
TK-C400EAC 24V
~
(isolated power only) or DC12V
TK-C401EGAC 220-240V
~
(e)
2
1
4 3
∆A
∆B
∆C
∆D
∆E
∆F
4-144-14
VICTOR COMPANY OF JAPAN, LIMITED
LENS ADJUSTMENT
Video adjust
Connect the camera according to the connection method, turn it on, display an image on the
monitor, and check the image. The camera has been factory-adjusted to the best position, but it
may need to be adjusted according to the object conditions or combination of lenses. If the image
is unnatural, adjust it as follows:
• LEVEL adjustment
• ALC adjustment
• If the sensitivity adjustment LEVEL is turned excessively to L, the sensitivity increases because of the AGC function of the camera, and the image looks grainy.
• If the video iris lens is set to too low a level, malfunction such as the hunting phenomenon, in
which the iris opens or closes unintentionally, may occur.
In such a case, first set LEVEL potentiometer on the lens to the H (iris open) position then
adjust it to the optimum level.
Back focus adjustment
The back focus has been factory-adjusted to the best point for CS-mount lens, but it
may need to be re-adjusted if the mount is changed to the C-mount or if a different lens
is used. If required, adjust it as follows:
• With a fixed-focus lens
If the focus can not be adjusted correctly by rotating the lens focus ring, adjust the back focus as
follows.
1. Loosen the back focus locking screw by turning it counterclocckwise (
) with a screwdriver.
2. Turn the back focus adjustment ring to focus at the best point.
3. Tighten the back focus locking screw by turning it clockwise (
).
• With a zoom lens
If the image is out of focus when zooming (wide-angle telephoto), adjust the camera as follows:
1. Shoot a comparatively dark scene with thin lines about three meters away from the camera.
2. Set the lens to the maximum telephoto position, and adjust the lens focus.
3. Set the lens to the maximum wide-angle position, and adjust the focus.
4. Repeat steps 2 and 3 two or three times.
SETTING SWITCH
Line Lock
To set the camera in LL mode for synchronization with the power supply frequency, take the following steps:
1. Turn switch 4 to “LL”;
2. Turn switch 3 to “PHASE”;
3. Press the + or
– button
2 to make the phase variable.
Adjust with the button 2 so that the vertical phase of the camera matches the vertical phase of
another camera (or system) with a multi-channel oscilloscope.
For initial setting, press RESET button 1.
U type: 60Hz power region only
E/EG type: 50Hz power region only
White Balance
White balance can be adjusted within the scope of 2900 - 8000K color temperature. When switch
5 is at “AUTO”, the white balance is adjusted automatically.
For manual adjustment, take the following steps:
1. Turn switch 5 to “MANUAL”;
2. Turn switch 3 to “W.B.”;
3. Pressing “R” button
2 increases redness while pressing
“B” increases blueness. For initial
setting, press RESET button 1.
BLC (Back Light Compensation)
The switch 6 improves an image that is darkened because of backlighting.
Set this switch to ON for backlight subjects.
AES (Automatic Electronic Shutter)
Turning this switch 7 "ON" when a lens with a manual iris diaphragm is used enables the automatic adjustment of image brightness. In this case the shutter speed changes according to the
brightness of the subject. AES functions only when AGC switch 8 is turned on.
Hunting may occur at a certain object brightness due to the mechanism of the AES circuit, but
this is not a fault.
AGC (Automatic Gain Control)
The switch 8 automatically increases the camera
’
s sensitivity when the level of ambient light
drops.
ON: AGC is activated.
OFF: AGC is not activated.
For Service
Interface Connector 9 is used for service.
SPECIFICATIONS
Image pickup device: 1/3-inch interline-transfer CCD
Number of effective pixels: U type:250 000 (510(H) × 492(V))
E/EG type: 300 000 (500(H) × 582(V))
Synchronization method: Internal
Line lock synchronization (U type 60Hz, E/EG type 50Hz
regions only)
Scanning frequency: U type:(H) 15.734kHz (V) 59.94Hz
E/EG type: (H) 15.625kHz (V) 50Hz
Resolution: 330 TV lines (H)
Video output: Composite video signal 1V(p-p), 75Ω, unbalanced
Video S/N ratio: 48 dB (50%, AGC OFF)
Minimum required illumination : 0.9 lx (25%, F1.2, AGC ON)
Lens mount: C/CS mount
Power supply: AC24V
~
60Hz DC12V
(TK-C400U)
AC24V
~
50/60Hz DC12V
(TK-C400E)
AC220-240V
~
50/60Hz (TK-C401EG)
Power consumption: 4W (TK-C400U), 300mA (TK-C400E), 42mA (TK-C401EG)
Ambient temperature: –10˚C to 50˚C (operation)
Part (high-intensity part) of the screen halates.Clockwise (Toward Pk)
Other part of screen (except high-intensity part) darkens.Counterclockwise (Toward Av)
Monitor screenLEVEL turning direction
Too brightCounterclockwise (Toward L)
Too darkClockwise (Toward H)