Panasonic TX-D1733 Series User manual

ORDER NO. FTD950605315
Service Manual
Multi-Scan Color CRT Display
MODEL TX-D1733 Series
Chassis No. HV5
Chassis Family No.17HV5
——1
Sy
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CONTENTS
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© 1995 Matsushita Electric Co., Ltd.
a
All right reserved. Unauthorized copying and distribution is
nasonic a violation of law.

/\ WARNING
This service information is designed for experienced repair technicians only and is not designed
for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers
in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced
professional technicians.
Any attempt to service or repair the product or products dealt within this service information by
anyone else could result in serious injury or death.

SAFETY PRECAUTIONS
1 CAUTION:
No modification of any circuit should be attempted.
Service work should only be performed after you are
thoroughly familiar with all of the following safety checks
and servicing guide lines.
2 SAFETY CHECK
Care should be taken while servicing this CRT display
because of the high voltage used in the deflection
circuits. These voltages are exposed in such areas as
the associated flyback and yoke circuits.
3 FIRE &€ SHOCK HAZARD
3-1 Insert an isolation transformer between the CRT
display and AC power line before servicing the
chassis.
In servicing pay attention to original lead dress
especially in the high voltage circuit. If a short
circuit is found, replace all parts which have been
overheated as a result of the short circuit.
All the protective devices must be reinstalled per
original design.
Soldering must be inspected for possible cold
solder joints, frayed leads, damaged insulation,
solder splashes or sharp solder points. Be certain
to remove all foreign material.
4 LEAKAGE CURRENT COLD CHECK
Unplug the AC cord and connect a jumper between
the two prongs on the plug.
Turn the CRT display power switch “on” .
Measure the resistance value with an ohmmeter
between the jumpered AC plug and each exposed
metallic part on the CRT display such as the metal
frame, screwheads, control shafts, etc. When the
exposed metallic part has a return path to the
chassis, the reading should be 1.8 megohm
minimum.
5 LEAKAGE CURRENT HOT CHECK
Plug the AC cord directly into the AC outlet. Do not
use an isolation transformer during this check.
Connect a 1500 ohm, 10 watt resistor, paralleled by
a 0.15uF capacitor between each exposed metallic
part and a good earth ground (as shown in Fig.1).
Use an AC voltmeter with 1000 ohm/volt or more
sensitivity and measure the AC voltage across the
combination 1500 ohm resistor and 0.15pF
Capacitor.
Move the resistor connection to each exposed
metallic part and measure the voltage.
Reverse the polarity of the AC plug in the AC outlet
and repeat the above measurement.
Voltage measured must not exceed 7.5 volt RMS,
from any exposed metallic part to ground A leakage
current tester may be used in the above hot check,
in which case any current measured must not
exceed 5.0 milliamp. In the case of a measurement
exceeding the 5.0 milllamp value, a rework is
required to eliminate the chance of a shock hazard.
3-3
3-4
4-2
4-3
5-2
5-3
5-4
5-5
5-6
27D
Note: High voltage is present when this CRT display is
operating. Always discharge the anode of the
picture tube to the display chassis to prevent
shock hazard.
AC VOLTMETER
(EARTH
GROUND)
To
INSTRUMENT'S
EXPOSED
METAL PARTS 15002, 10W
Fig.1
6 IMPLOSION PROTECTION
Picture tubes are equipped with an integral implosion
protection system, but care should be taken to avoid
damage and scratching during installation. Use only
Panasonic replacement picture tubes.
7 X-RADIATION
WARNING : The only potential source of X-Radiation is
the picture tube. However when the high voltage
circuitry is operating properly there is no possibility of X-
Radiation problem. The basic precaution which must be
exercised is to keep the high voltage at the following
factory-recommended level.
Note: It is important to use an accurate periodically
calibrated high voltage meter.
7-1 The procedure for adjustment high voltage is as
shown on page 27.
7-2 If can not be adjust 25.0 kV at immediate service is
required to prevent the possibility of premature
component failure.
7-3 To prevent X-Radiation possibility it is essential to
use the specified picture tube.
MPORTANT SAFETY NOTICE
There are special components used in this CRT
displays which are important for safety. These
parts are identified by the international symbol A
on the schematic diagram and on the
replacement parts list. It is essential that these
critical parts should be replaced with
manufacture’s specified parts to prevent X-
RADIATION, shock, fire or other hazards. Do not
modify the original design or this will void the
original parts and labor guarantee.

1. OUTLINE
TX-D1733 is a 17 inch multi-scan color CRT display with
the following features.
eMulti scan Digital control
Display) control Power saving
and fine dot pitch CRT
2. FEATURES
2-1 Power Saving
. © This monitor is equipped with power management
circuitry conforming to the VESA standard.
¢ Depending on the signal from a computer,
switching occurs between four modes to minimize
non-essential energy consumption.
2-2 OSD (on screen display) function
¢ OSD (5 languages) is a man-machine interface.
Any one is able to set up the picture as he like
through OSD menu.
2-3 Self Test function
e With a touch of a button ( ) the self-test function
quickly identifies a “no signal condition.” This
time saving function simplifies diagnostics and
prevents unnecessary service calls.
2-4 Power Supply with high power factor
¢ Power Supply with high power factor enables to
utilize AC power efficiently meeting IEC555-2 (Line
Harmonics).
2-5 Ergonomic design
*OSD (On Screen
eHigh contrast
1. DIAGRAM
15p MINI D-SUB
CONNECTOR
1.1 POWER SW, LED, [i/-key (MENU), <J-key (DOWN),
[> -key (UP), and [2]-key (ENTER) are located on the
front panel.
1.2 Signal connector and AC inlet are located on the
back side of the cabinet.
1.3 OSD menu includes the following function.
CONTRAST BRIGHTNESS DEGAUSS
H POSITION H SIZE V POSITION
V SIZE V PIN-CUSHION TRAPEZOID
PARALLELOGRAM COLOR SELECT
AC INLET
KEY KEY KEY KEY
GENERAL INFORMATION
¢ Low emission design to meet MPR II
e ESF (Electro static field) free coating on CRT
2-6 Multi scan with digital technology
° 8 bit micro computer controls the circuit operation
to meet with wide range signal of f,=30~69 kHz
and f, =50~160 Hz. So VGA640x350, VGA640x400,
VGA640x480, SVGA800x600, 1024x768 and
1280x1024 mode are applicable.
2-7 3 Factory presets, (+5 Reservation), 13 user
memories.
¢ 3 standard modes are preset at the factory.
e 5 modes are reserved at the factory.
e 13 user memories are available to set the users
own timing and display information.
2-8 Flat Face and fine dot pitch
e Flat face CRT with a fine dot pitch of 0.27 mm
provides for comfortable viewing.
2-9 Superior display performance
¢ Good focus by sophisticated gun and dynamic
focus circuit
e High contrast CRT (TM=42.5%)
¢ Minimized distortion by correction circuit
¢ Good convergence
¢ Full scan image for graphics
2-10 Plug and Play
e VESA/DDC1 (Display Data Channel) compatible
SPECIFICATION
c
-o2-M
Oo
DOAYrO
DISPLAY FREQUENCY
VIDEO INPUT LEVEL
LANGUAGES RECALL.
3%) CONTRAST can be directly controlled with
<1/ > -key.
*K) With sync signal, OSD menu appears by
pushing [1|-key.
Without sync signal, self test menu appears
by pushing [1|-key.

2. MECHANICAL SPECIFICATIONS 5.2 POWER
see refer to the attached drawing 5.2.1 Power supply ... Commercial power source
2.1
Dimension
Height
:
415
mm
(16.3°)
typ.
input
voltage
|
AC
90
-
132
V,
AC
198
-
264
V
Width : 410 mm (16. 1") typ. Power frequency > 50/60 Hz
Depth : 438mm (17.2’) typ. Input current 1.5 AMax.(100V) (1)
Inrush current (at 20° C) 40 A op
2.2 Net Weight : 17.0 kg (37.4 Ibs) typ. Power consumption 100 W (Typ.)
(9% 1) Input current is reduced to about 60 % our current
3. CONNECTORS products by "High Power Factor" technology.
3.1 Signal connector: 15P Mini D-Sub connector
3.2 AC inlet: CEE 22 typed connector 5.2.2 Power Management for Power Saving ...
Power saving system is designed based upon
VESA DPMS standard (Version : 1.0)
<15P Mini D-Sub — Pin assignment>
1) Power consumption and recovery time.
®®@OO® SIGNALS MONITOR | RECOVERY
POWER TIME
© ® ®@ © consump.| Toon _ | INDICATOR
®®@®O@® V. Sync} VIDEO |Tion STATE
*3 *2 *4
NOR. | ACTIVE
MAL
1... RED 6...GROUND 11... GROUND
2... GREEN 7...GROUND 12... SDA (DDC)
3... BLUE 8...GROUND 13...H. SYNC.
4... GROUND 9...-(OPEN) 14... V. SYNC.
5... GROUND (DDC) 10...GROUND 15... SCL (DDC)
4. CRT SPECIFICATIONS No
Sync or
*5
Part No. M41KXH140X
Type 17", 90°, 29a, in-line gun(15.7" Viewable)
Dot Pitch 0.27 mm
Phosphor R, G, B Short Persistence (Hi-Eu RED)
CIE Color point Red x: 0.635(+ 0.020) y: 0.333 (+ 0.020)
| Green x: 0.280(+ 0.020) y: 0.595 (+ 0.020)
| Blue x: 0.152 (+ 0.015) —y: 0.063 (+ 0.015)
| DARK TINT
NEW AGRAS COAT
42.5 %
<20Hz
** The transition time from ON state to each
APM state is 5 seconds minimum.
*1: APM: Advanced Power Management.
*2: Meas. Condition of power consumption for
ON state.
DISPLAY IMAGE : WHITE full "H" characters
with a border line (7 X 9 dots).
*3: NORMAL : See "7.4 ACCEPTABLE TIMING".
*4: Power Consumption is measured at AC 100-
Total Transmission
5. ELECTRICAL SPECIFICATIONS
are 240V.
5.1 Standard conditions ... Except special items 7 eee
5: Power saving operation is done at least less
Display image Green, full "H" characters with a border than specified value in the list.
line. (7 x 9 dots)
Video siganl : 100% duty
Display area : 300 mm x 225 mm
Video signal level [0.7 Vpp 5.3 Standard timing (Standard mode)
Contrast, Brightness | Contrast : Max., Brightness : detent point ¢ Following total 3 modes (5 modes) are preset
Ambient Temperature | 20+5°C (68 + 9°F) (reserved) in the memory as standard timing at the
Input
Voltage
AC
120
V,
60
Hz
factory.
Vertival field : northern hemisphere field (407) ¢ Fig-1 shows a definition of timing and signal level.
Horizontal field : no field ; ngs :
performance is specified This
gy ate ae
SPECIFICATION is specified at STD (1024 x 768)
After an initial warming up time of more
Measurements | than 30 minutes. mode unless otherwise mentioned. (MODE-2)
Ambient light 200450 IX
Display mode 1024 x 768 (60.02 kHz, 75.03 Hz)
Terrestrial magnetism

TIMING CHART
0.7V/1.0V
A +r
Blanking
C | Sync Width
Back Porch H/V SYNC
E | Active
Front Potch
FOR PRESET
| mope-1 | Mope-2 | MODE-3___
640 x 480 (60) 1024 x 768 (75) 1280 x 1024 (60)
DOT CLOCK
fH . 31.4681 KHz 60.0229 KHz 63.7192 KHz
A-PERIOD —|_ 31.778 us ( 800 dots) | 16.660 ps ( 1,312 dots) | 15.694 ys ( 1,718 dots )
B-BLANKING TIME | 6.356 us ( 160 dots) | 3.657 us ( 288 dots) | 4.001 ps _( 438 dots )
H|C-SYNC WIDTH | 3813s ( 96 dots)| 1219s ( 96 dots)| 1.425 us ( 156 dots )
D - BACK PORCH “1.907 us ( 48 dots) | 2235 us ( 176 dots)| 2174s ( 238 dots )
IE-ACTIVE TIME | 25.423 us ( 640 dots) | 13.003 ps ( 1,024 dots) | 11.693 ws ( 1,280 dots )
F - FRONT PORCH 0.636 us ( 16 dots ) 0.203 us ( 16 dots ) (44 dots )
fV 59.9393 Hz 75.0286 Hz 59.9992 Hz
A-PERIOD _—_—si'|s 16.684ms ( 525 lines) | 13.328ms ( 800 lines) | 16.667 ms ( 1,062 lines )
B-BLANKING TIME | 1.430ms ( 45 lines) | 0.533 ms (32 lines) | 0.596 ms ( _36 lines )
V |C-SYNC WIDTH © 0.064ms ( 2 lines) | 0.050 ms ( 3 lines) | 0.047 ms_( 3 lines )
D-BACK PORCH | _ 1.049 ms ( 33 lines ) 0.466 ms ( 28 lines ) 0.502 ms ( 32 lines )
E-ACTIVE TIME | 15.254ms ( 480 lines) | 12.795 ms ( 768 lines) | 16.071 ms ( 1,024 lines )
F - FRONT PORCH 0.318ms ( 10 lines)}| 0.017ms ( 1 lines)| 0.047ms (3 lines)
SYNC POLARITY(H/V) Negative / Negative Positive / Positive
FOR RESERVATION
MODE - 4 | Mope-5 | — MODE-6
640 x 480 (75) 800 x 600 (75) MAC-II (832 x 624)
fH ee ee all 37.5000 KHz 46.8750 KHz | —=_— 49.7248 ~— KHz
|A - PERIOD 26.667 ws ( 840 dots) | 21.333 ps ( 1,056 dots) | 20.111 us ( 1,152 dots )
B - BLANKING TIME 6.349 us ( 200 dots)}| 5172 us ( 256 dots) | 5.586 ys ( 320 dots )
H iC-SYNC WIDTH | 2.032s ( 64 dots ) 1.616 us ( 80 dots ) 1.417 ys ( 64 dots)
D-BACKPORCH | 3810s ( 120 dots)| 3.232us ( 160 dots) | 3.910 ps ( 224 dots)
(E-ACTIVE TIME | 20317us ( 640 dots)| 16.162 ps ( 800 dots)| 14.524us ( 832 dots)
F - FRONT PORCH 0508 us ( 16 dots)| 0323 ps ( 16 dots)| 0559ys ( 32 dots)
fv eee 75.0000 Hz 75.0000 Hz 74.5500 Hz
IA-PERIOD —_—_s|_—'13.333 ms (500 lines) | 13.333 ms ( 625 lines) | 13.414ms (667 lines)
B-BLANKING TIME | 0533 ms ( 20 lines) | 0533 ms (25 lines ) 0.865 ms ( 43 lines )
Vic - SYNC WIDTH ___ 0,080 ms ( 3 lines ) 0.064 ms ( 3 lines ) 0.060 ms ( 3 lines }
D - BACK PORCH 0.427 ms ( 16 lines) | 0.448 ms ( 21 lines) | 0.784ms ( _39 lines)
E-ACTIVETIME | 12800ms ( 480 lines) | 12.800 ms ( 600 lines) | 12549ms ( 624 lines)
F - FRONT PORCH 0.027 ms ( 1 lines) | 0.021 ms lines) | 0.020ms ( lines )
( ( 1
SYNC POLARITY(H/V) Negative / Negative Positive / Positive Negative / Negative

FOR RESERVATION
MODE - 7 MODE - 8
1024 x 768 (70) 1024 x 768 (72)
DOT CLOCK
F - FRONT PORCH
0.320 ys 24
dots ) 0.320 us
fH = ie. 56.4759 KHz 57.8704 KHz
A-PERIOD | 17.707 us ( 1,328 dots ) | 17.280 us ( 1,296 dots )
|B - BLANKING TIME 4.053 ps ( 304 dots)| 3627s ( 272 dots )
C - SYNC WIDTH 1.813 us ( 136 dots)]| 1920s ( 144 dots )
D - BACK PORCH 1.920 us ( 144 dots ) 1.387 ys (104 dots )
E - ACTIVE TIME 13.653 ps ( 1,024 dots )]| 13.653 ys ( 1,024 dots )
( (
24 dots )
FOR ADJUSTMENT
HV5- 1 HV5- 2 HV5- 3
DOT CLOCK
fV 70.0694 Hz 71.7995 Hz
A - PERIOD 14.272 ms ( 806 lines) | 13928ms ( 806 lines )
B - BLANKING TIME 0.673 ms ( 38 lines) | 0.657ms ( 38 lines )
V |C - SYNC WIDTH 0.106ms ( 6lines)| 0.104ms (6 lines)
D - BACK PORCH 0513ms ( 29 lines)| 0.501ms (29 lines )
E - ACTIVE TIME 13.599 ms ( 768 lines) | 13.271 ms ( 768 lines )
F - FRONT PORCH 0.053 ms (3 lines) | 0.052 ms lines )
SYNC POLARITY(H/V) Negative / Negative Negative / Negative
fV
48.0520 Hz
fH 29.5039 KHz 39,0000 KHz 53.9966 KHz
[A - PERIOD — 33.894 us ( 766 dots) | 25.641 ps ( 1,032 dots) | 18520 us ( 1,186 dots )
B - BLANKING TIME 8.496 us ( 192 dots)| 3.926 ys ( 158 dots)| 4497 ys ( 288
C - SYNC WIDTH 4115 us ( 93 dots)| 1.491 ps ( 60 dots)| 1.718 us (
D - BACK PORCH 2788 ps ( 63 dots)| 2336 ps ( 94 dots)| 2186 us ( 140
E - ACTIVE TIME 25.398 ps ( 574 dots)| 21.715 ps ( 874 dots)| 14.022 us ( 898 dots )
F - FRONT PORCH 1593 us ( 36 dots ) 0.099 ps ( 4 dots ) 0.593 us (
5
77.0751
Hz 10:
A-PERIOD _ 20.811 ms ( 614 lines) | 12.974ms ( 506 lines)| 9.519 ms lines )
|B - BLANKING TIME | 0.915ms ( 27 lines ) 0.744ms ( 29 lines ) 0.482 ms lines )
C - SYNC WIDTH 0.102ms ( _ 3 lines ) 0.103 ms ( 4 lines ) 0.037 ms lines )
D - BACK PORCH 0.712 ms ( 21 lines) | 0513 ms ( 20 lines) | 0.352 ms lines )
E - ACTIVE TIME 19.896 ms ( 587 lines) | 12.231 ms (477 Ii 9.038 ms lines )
F - FRONT PORCH
0.102 ms ( 3 lines ) 0.128 ms
FOR ADJUSTMENT
fH _ 69.9850 KHz
A - PERIOD 14.289 ps (1,335 dots )
B - BLANKING TIME. 3.329 us ( 311 dots )
H |C -SYNC WIDTH ~ 1.092 us ( 102 dots )
D-BACKPORCH | 1.820us ( 170 dots )
E - ACTIVE TIME 10.960 us ( 1,024 dots )
F - FRONT PORCH 0.417 us ( 39 dots )
fV 165.0590 Hz
A-PERIOD —_—_—s_|_—6.058 ms ( 424 lines )
B -BLANKING TIME | 0.457 ms ( 32 lines )
C-SYNC WIDTH | 0.043ms ( 3 lines )
D - BACK PORCH 0.343 ms (24 lines )
E - ACTIVE TIME 5.601 ms _( 392 lines )
F - FRONT PORCH 0.071 ms (___5 lines)
SYNC POLARITY(H/V) Negative / Negative Negative / Negative Negative / Negative
5 li 0.093 ms lines )

5.4 Acceptable timing
e If your timing is within following specification, this
CRT display can automatically function with a
certain size and position.
Horizontal: Sync frequency: 30.0 ~ 69.0 kHz
Blanking Time: 2 3.0 ps
Back Porch: 21.25 ps
Front Porch: <Back Porch
Sync Width: 21.2 us
Vertical: Sync frequency: 50.0 ~ 160.0 Hz
Blanking Time: = 0.5 ms
Back Porch: 20.4ms
Sync Width: 20.045 ms
Several items like size, position and distortion can
be adjusted through OSD menu, and if you want to
keep it, please push the key [1] for memory, or keep
the key untouched for about 20 seconds, it is
automatically memorized.
NOTE : In case of RECALL, the key is untouched
for about 30 seconds, RECALL function
will be canselled.
Please note, however, that there is the case you can
not get the size and/or position you want,
(for example, in case Display video Time is too
short, you can't get bigger size of the image.)
The CRT adopted in this CRT display is designed to
minimize the moire phenomenon at suitable size for
typical display modes. However, there might be a
display format among many formats, in which the
moire phenomenon appears on this display.
5.5 Signal level and input impedance
5.5.1 Video Signal level
This CRT display is adjusted at the factory using
0.7V p-p Video Signal, Black level is OV.
5.5.2 Sync Signal level
eH/V Separate, H/V Mixed : TTL level
eSync on Green : 0.3 V p-p
5.5.3 Input impedance
eVideo input: 75 Q
eSync input: 21 kQ
5.6 Display performance
5.6.1 Display area
1) PRESET TIMING
(MODE 1& 2) (MODE 3)
WIDTH :300mm+5mm 286 mm +5 mm
HEIGHT : 225mm+5 mm 229 mm+5mm
5.6.2 Centering
1) PRESET TIMING (MODE1~3)
IA~Bl< 5mm
IC -DI< 5mm
Cc
Display area
Edge of bezel
5.6.3 Distortion
1) Trapezoid
AC - BD :
AB - CD
AB + CD
A B
x 100<1%
2) Parallelogram
a,b<2mm
' a '
!<———_+;

3) Pincushion and Barrel
IC11, 1C2l <2.5mm
Id1l, ld2i <25mm
(oe Se ey
dt d2
5.6.4 Rotation
IH1 —H2l < 2.2mm
(H1 —-H21 S 2.2mm Display area
gsr Oe scan line
5.6.5 Linearity
Horizontal linearity
X max. - X min.
Ma Me tod Sei
X max. + X min.
Vertical linearity
Y max. — Y min.
pepe LL LL ey og ek
Y max. + Y min.
x1 Xm
<Conditions>
Display image ------- crosshatch pattern
Maximum and minimum values should not be adjacent
to each other.
X max. is maximum value among X1~Xm
Xmin. is minimum value among X1~Xm
Y max. is maximum value among Y1~Yn
Ymin. isminimum value among Y1~Yn
5.7 General performance
5.7.1 Video output
Bandwidth | 86 MHz (Typ.)
5.7.2 Maximum luminance
120 cd/m? (Typ.) for 5% white field at the
Value
center of the display area.
110 cd/m? (Typ.) for 100% white field at
5.7.3, Minimum luminance
the center of the display area.
Specified by 9300 K + 27 MPCD
Display image : White full flat field
Luminance _ : Max. (Contrast : Max.)
(Brightness :Detent point)
< 26 cd/m? at the center of the displa
area.
Specified by 9300 K + 27 MPCD
Display image : White full flat field
Conditions} Luminance — : Min. (Contrast : Min.)
(Brightness : Detent point)

5.7.4 Brightness variation
70 % (Min.) Variation = C/A X 100
Display image : White full flat field
Conditions
Luminance — : MAX (Contrast : MAX)
§.7.5 Display area regulation
(Brightness : Detent point)
A; Luminance at center position
C ; Luminance at position of lowest
brightness
Display area variation | Range of variation
within 1.5 % of display; 26~110 cd/m?
Luminance | area {
(white flat field)
Due to within 1.5 % of display; AC : 90-132 V
Due to within 2 % of display
or 180-264 V
5.7.6 Color Point
0-40°C
(th=30-65 kHz)
< Conditions >
Display image : White flat field at the center of
the display area.
Luminance — : Brightness Detent point.
Contrast
9300 K + 27 MPCD | 9300 K + 27 MPCD
x = 0.281+0.020 | x =0.281+0.020
y = 0.311 +0.020 y = 0.311 40.020
5.7.7 Misconvergence
Center area of display
Corner area of display
(A): 0.3 mm (Max.)
(B): 0.4 mm (Max.)
<Conditions>
Display image
Convergence gauge :
Display area
5.7.8 Purity
Crosshatch pattern mixed
with R, G and B colors.
KLEIN CM7AG or equiva-
lent.
WxH 300 x 225 mm
Conspicuous mislanding shall not be visible
within display area at a distance of 60cm from
CRT surface.
<Conditions>
Display image :
Luminance
White flat field
: Contrast max, Brightness
Detent point.
5.7.9 Jitter
Invisible at a distance
6. ENVIRONMENTS
of 60 cm from CRT surface.
6.1 Ambient temperature, humidity and altitude
Operating
Storage and
shipment
Temperature
O~40°C* |
(fh = 30-65 kHz) |
-20 ~ +60° C
(-4 ~ 140° F)
Humidity
5 ~ 90 % *
5 ~ 90 % *?
4
Altitude
3,000 m (Max.)
(10,000 ft)
12,000 m (Max.)
(40,000 ft)
*1Q ~ 35°C for 66 ~ 69 kHz
*2 Non-condensation