Panasonic CT 30WX52 User manual

Order No. ITD0205011C1
B5
Wide Screen TV
CT-30WX52 / CT-34WX52
DX3PW Chassis
SPECIFICATIONS
Specifications
Power Source AC120V, 60 Hz
Power Consumption:
Average use 170W (Maximum Current:3.6A)
Stand-by condition:0.2W
CRT
CT-30WX52:30 inch, 16:9 aspect ratio
CT-34WX52:34 inch, 16:9 aspect ratio
Screen size
CT-30WX52:
25.95” (659.1mm)(W)x14.59” (370.7mm)(H)x29.77”(756.2mm)(D)
CT-34WX52:
29.36” (745.9mm)(W)x16.5” (419.5mm)(H)x33.68”(855.7mm)(D)
Dimension (WxDxH)
CT-30WX52:
32.6” (827mm)x22.8” (579mm)x21.1” (535mm)
CT-34WX52:
36.4” (926mm)x30.6” (651mm)x23.1” (584mm)
Weight (Mass)
CT-30WX52:126 lbs (57kg) Net
CT-34WX52:172 lbs (78kg) Net
ANODE Voltage 33.0 ±1.0kV at zero beam current
Channel Capability-181
VHF-12:UHF-56:Cable-125
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Sound
Speaker 4 Speakers
Audio out 30W (15W+15W) (10% THD)
Headphones M3 (3.5mm) Jack×1
FEATURES
Two screen display function 3D Y/C FILTER
BBE LINEAR PIP
CLOSED CAPTION V-Chip
Accessories Supplied Remote conrtol Transmitter
EUR7603Z70
R6 (AA) Battery ×2 Size
Operating Conditions
Temperature:34°F -104°F (0° -40°C)
Humidity:20% -80% (non-condensing)
Connection terminals
AV INPUT 1-4VIDEO 1.0 Vp-p (75 )/ (Phono
Jack Type) / S-VIDEO Y:1.0Vp-
p (75 )/ (Mini DIN 4-pin) C:
0.286 Vp-p (75 )/ AUDIO L-R
0.5Vrms / (PhonoJack Type x 2)
AV PROG OUT VIDEO 1.0Vp-p (75 )
(Phono Jack Type)
AUDIO L-R 0.5 Vrms
(Phono Jack Type x2)
TO AUDIO AMP AUDIO L-R 0.5 Vrms / (Phono
Jack type x2)
COMPONENT VIDEO
INPUT1-2Y 1.0 Vp-p (including
synchronization) / PB/PR±0.35
Vp-p/ AUDIO L-R 0.5 Vrms /
(Phono Jack Type x 2)
Design and Specifications are subject to change without notice.
Weight and Dimensions shown are approximate.
2002 Matsushita Electric Industrial Co., Ltd. All rights reserved.
Unauthorized copying and distribution is a violation of law.
1. Safety Precautions
1.1. General Guidelines
1. It is advisable to insert an isolation transformer in the AC power
line before servicing a hot chassis.
2. When servicing, observe the original lead dress, especially the
lead dress in the high voltage circuits. If a short circuit is found,
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replace all parts which have been overheated or damaged by the
short circuit.
3. After servicing, see to it that all the protective devices such as
insulation barriers, insulation papers, shields, and isolation R-C
combinations, are properly installed.
4. Before switching the power on, measure the resistance between B
+line and cold side chassis ground. Connect the "-" side of an
ohmmeter to the B+line, and the "+" side to chassis ground. Each
line must have moreresistance value than the specified one as
follows:
B+line SPECIFICATION
MAN 12V (TPA6) 12.0V±0.5V
MAIN 9V (TPA7) 9.0V±0.5V
MAIN 5V (TPA8) 5.0V±0.3V
GC 2.5V (TPA9) 2.5V±0.2V
STBY 3.3V (TPA16) 3.3V±0.2V
STBY 7V (TPA9) 7.0V±0.5V
+B2 (TPD144) 144.0V±1.5V
25V (TPD250) 27.5V±2.0V
15V (TPD150) 15.7V±1.5V
-15V (TPD151) -16.0V±1.5V
SOUND+(TPD160) 16.5V±1.0V
SOUND-(TPD161) -16.5V±1.0V
220V (TPD7) 215V±5.0V
5. When the set is not used for a long period of time, unplug the AC
power cord plug from the AC line outlet.
6. High voltage points, as high as 37.2 ±1.0 kV, are present when the
set is in operation. Operating the set without the rear cover
involves in a dangerous electrical shock from the set power
supply. Servicing must not be attempted by anyonewho is not
thoroughly familiar with the necessary precautions when working
on high voltage equipment. Always discharge the anode of the
picture tube to chassis ground before handling the picture tube.
7. After servicing, make the following leakage current checks to
prevent the customer from dangerous electrical shock.
1.2. Leakage Current Cold Check
1. Unplug the AC power cord and short between the two prongs of
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the AC plug with a jumper wire.
2. Set the power switch of this set to ON position.
3. Measure the resistance value with an ohmmeter between the
shorted AC plug and each exposed metallic part of the set cabinet
such as screwheads, connectors, and control shafts. When the
exposed metallic part has a return path to the chassis,the reading
should be more than 1 M ./ When the exposed metal part does
not have a return path to the chassis, the reading must be infinity.
1.3. Leakage Current Hot Check (See Fig.1)
1. Plug the AC power cord directly into the AC line outlet. Do not use
an isolation transformer for this check.
2. Connect a 1.5k ,10W resistor, in parallel with a 0.15 F capacitor
between each exposed metallic part of the set and an earth ground
such as a water pipe.
3. Use a high impedance AC voltage meter to measure the voltage
across the resistor.
4. Measure the voltage at each exposed metallic part.
5. Reverse the AC plug inserting direction at the AC line outlet and
repeat each of the above measurements.
6. The voltage at any point must be less than 0.75Vrms.
7. A leakage current tester (Symptom Model 229 or the equivalent)
may be used to make the hot checks. In this case, the current
must be less than 500 A.
8. If the reading is more than the above value, the set must be
repaired and rechecked before it is returned to the customer
because of a possibility of an electrical shock.
Fig. 1
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1.4. X-Radiation
Warning:
1. The potential sources of X-Radiation in the monitor set are the high
voltage section and picture tube.
2. When using a picture tube test jig for service, make sure that jig is
capable of handling 37.2kV without causing X-Radiation.
3. For continued X-radiation protection, in case that at least one of the
components listed below is replaced, follow the adjustment
procedure of the high voltage circuit. Precise adjustment is
necessary for Serviceman Mode to protect X-Radiation. Refer to
"High Voltage and X-Radiation Protective Circuit Adjustment
section".
T551, IC1501, IC4002, D512, D1503, R520, R521, R522, R809, R810,
R1506, R4081, R4084, R1505, R1515 C481, C528, C1506, C1507,
RL801
1.5. Hold Down or Safety Circuit Information
To monitor the high voltage, the positive DC voltage from the cathode D512 isapplied through
R1507 and other resistorsto pin 3 of IC1501, which isthe input terminal of the X-ray Protection
Circuit. The voltage at pin 2 of IC1501 is5.90 ±0.03voltage. Under normal conditionsthisvoltage is
insufficient to activate the X-ray Protection Circuit.
If the voltage at pin 3 of IC1501 increasesover the voltage at pin 2 of IC1501 increasesand causes
the X-ray Protection to activate. Then it causesthe shut down works.
In the processdescribed above, the voltage at pin 3 of IC1501 iscompared with the voltage at pin
2 of IC1501.if excessive beam current isdrawn, the voltage at oin 3 of IC1501 increases. When the
voltage at pin 3 of IC1501 over the voltage atpin 2 of IC1501, the voltage at pin 1 of IC1501
becomes"high" and feedsinto pin 45 of micro-controller IC4002 through R4084.The micro-
controller then turnsoff Q802, causesthe AC power relay RL801 to unlatch and turnsoff the
receiver.
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2. Service Hints
2.1. Before servicing
1. Remove the screws fixing the rear cover (13 pcs.:Refer to Fig. 1).
Fig. 1 Position of the screwsfixing the rear cover
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2. Remove the rear cover by raising the chassis a little and pulling to
the rear .(Refer to Fig. 2.)
- At this time, disconnect the coupler P11, the ring clamper, etc.
as required to facilitate the pulling out of the chassis.
- After completion of servicing, any disconnected couplers and
clampers must be restored to their original condition.
Fig. 2 How to tilt the chassis
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2.2. In regard to inspection of A-Board and D-Board
- The A-Board and D-Board can be inspected from the pattern side
when the chassis is pulled out and tilted up. (Refer to Fig. 3.)
- At this time, disconnect the coupler, the clamp, etc. as required to
facilitate tilting of the chassis.
- When tilting the chassis, pay sufficient attention to the L-Board at
the neck of the picture tube
Fig. 3 Inspection of the A-Board and D-Board
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2.3. Service position for DG-Board
Note:
Extension cable kit for DG-Board issupplied asservice fixturesand tools.
PartsNo. TZSC07038
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3. About lead free solder (PbF)
Note:Lead islisted as(Pb) in the periodic table of elements.
In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.
The Lead Free Solder used in our manufacturing processand discussed below is(Sn+Ag+Cu).
That isTin (Sn), Silver (Ag) and (Cu) although other typesare available.
Thismodel usesPb Free solder in it’smanufacture due to environmental conservation issues.
For service and repair work, we’d suggest the use of Pb free solder aswell, although Pb solder
may be used.
PCBsmanufactured using lead free solder will have the PbF within a leaf Symbol
stamped on the back of PCB.
Caution
- Pb free solder has a higher melting point than standard solder.
Typically the melting point is 50 ~ 70 ~F (30~40~C) higher. Please
use a high temperature soldering iron and set it to 700 ±20 ~F (370 ±
10 ~C).
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- Pb free solder will tend to splash when heated too high (about 1100
~F or600~C).
If you must use Pb solder, please completely remove all of the Pb
free solder on the pins or solder area before applying Pb solder. If
this is not practical, be sure to heat the Pb free solder until it melts,
before applying Pb solder.
- After applying PbF solder to double layered boards, please check
the component side for excess solder which may flow onto the
opposite side. (see figure below)
Suggested Pb free solder
There are several kindsof Pb free solder available for purchase. Thisproduct usesSn+Ag+Cu
(tin, silver, copper) solder. However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder
can also beused.
4. Chassis Board Layout
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Board Name Designation
G-Board Front terminal
K-Board LED/Main Power SW/RM
L-Board CRT Drive
P-Board AC Power
D-Board Power Deflection
A-Board AUDIO, AV SW
DG-Board Digital Core, MPU
5. Location of Lead Wiring (CT-30WX52)
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Connect Connector
DY, DEG-2, ANODE LEAD, CRT-GND (L11), CY (L2), A11, D1, AC-1,
RT2, G4, G18, Fo. Sc, D16, L12, D13
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<<CAUTION POINT>>
1. The leads should not be too close to the anode leads.
(Be separated at least 10mm.)
2. The anode leads should be separated at least 10mm from the CRT,
Back Cover, DY, Circuit Board and so on.
3. The focus screen lead should not touch CY fixed screw.
4. The lead wires should not touch Headsink and hot parts as
following.
DEG lead Tuner, IC4803
AC2 lead Tuner, IC4803, IC2302 of heatsink
RT2 lead DEG pin, R801, R800
SP lead DEG pin, R801, R800
6. Location of Lead Wiring (CT-34WX52)
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Connect Connector
DY, DEG-2, ANODE LEAD, CRT-GND (L11), CY (L2), A11, D1, AC-1,
RT2, G4, G18, Fo. Sc, D16, L12, D13
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<<CAUTION POINT>>
1. The leads should not be too close to the anode leads.
(Be separated at least 10mm.)
2. The anode leads should be separated at least 10mm from the CRT,
Back Cover, DY, Circuit Board and so on.
3. The focus screen lead should not touch CY fixed screw.
4. The lead wires should not touch Headsink and hot parts as
following.
DEG lead Tuner, IC4803
AC2 lead Tuner, IC4803, IC2302 of heatsink
RT2 lead DEG pin, R801, R800
SP lead DEG pin, R801, R800
7. Serviceman Mode (Electronic Controls)
ThisReceiver haselectronic technology using the I2C BUS Concept. It performsasa control
function and it replacesmany mechanical controls. Instead of adjusting mechanical controls
individually, many of the control function are now performedby using “On Screen Display
Menu”. (The Serviceman Adjustment Mode .)
Note
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It issuggested that the technician readsall the way through and understand the following the
procedure for Entering/Exiting the Serviceman Mode ;then proceed with the instructions
working the Receiver. When becoming familiarwith the procedure, the Flow Chart for
Serviceman Mode may be used asa quick guide.
Quick Entry to Serviceman Mode:
At timeswhen minor adjustmentsneed to be done to the electronic controls, the method of
Entering the serviceman Mode without removal of the cabinet back isasfollowsusing the
Remote Control:
1. Select SET-UP icon and select CABLE mode.
2. Select TIMER icon and set SLEEP time for 30 Min.
3. Press ACTION button twice to exit menus.
4. Tune to the Channel 124.
5. Adjust VOLUME to minimum (0).
6. Press the VOL button (decrease) on Receiver .Red “CHK”
appears in upper corner.
To toggle between Aging and Serviceman modes:
While the “CHK” is displayed on the left top corner of the screen,
pressing the Action and the Volume up button on the Receiver
simultaneously will toggle between the modes. Red “CHK” for
Serviceman and yellow “CHK” forAging.
7. Press the Power Button on the Remote Control to select one of six
Serviceman Adjustment Modes.
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A. Serviceman MTS ADJUSTMENT.
B. Serviceman CLOCK ADJUSTMENT.
C. Serviceman VIDEO ADJUSTMENT.
D. Serviceman HDEF ADJUSTMENT.
E. Serviceman VDEF ADJUSTMENT.
F. Serviceman DAF ADJUSTMENT.
G. Serviceman OTHER ADJUSTMENT.
Exiting the Serviceman Mode:
Pressthe Power buttonson the Receiver.
For Adjustments:
1. Press Channel Up/Down on the Remote Control to select one of
the available Service Adjustments (ain Fig.1).
Note:
Write Down the original value set (bin Fig.1) for each addressbefore modifying anything. It is
easy to erroneously adjust the wrong item.
2. Press Volume Up/Down on the Remote Control to adjust the level
of the selected Service Adjustment (bin Fig.1).
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MAIN
ITEM SUB ITEM ORIGINAL
VALUE EEPROM
ADRESS DEFAULT
LEVEL
SLEEVE SUB
MTS MTSIN 10 3A 21
SEPA L10 3B 06
SEPA H10 3C 19
CLOCK CLOCK 10 3D 128
VIDEO COLOR 14 F2 19
TINT 14 F6 88
BRIGH 14 D4 01 FA
CONT 14 D7 25
B-Y_G 14 E0 3F
CUT_G 15 0C 01 6C
CUT_R 15 01 01 99
CUT_B 15 13 01 A4
BRT 14 D0 FB
R DR 14 FB 9F
B DR 15 00 A8
HDET H LIN 11 0C A7
H POS 12 1F 00 B4
H WID 12 B0 50
PCC 12 AC 20
PCCHG 12 91 1F
PCCLG 12 96 1B
PCCHS 12 9E 00
PCCLS 12 9A 00
TOPG 12 A8 4A
BTMG 12 A3 4F
TOPSL 12 88 03
BTMSL 12 8C 00
TRAP 12 BA 7F
PARA 12 CE 08
SIDE 12 CA 08
V-DEF V RAS 11 10 71
VEAMP 12 6D D1
V-C12 66 20
V-S12 5F 29
DAF HDAFS 11 D2 00 38
VDAFG 12 BE 52
OTHER VMM_G 11 15 A0
VMM_P 11 18 F3
HHS 11 19 CB
EW_SW 12 7B 00
VTOP 12 59 86
SOSSW 11 1B 01
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8. Adjustment
8.1. MTS Adjustment
8.1.1. Input level Adjustment
8.1.2. STERO Sep. Adjustment
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