TX-29E50D TX-29E50D/B TX-29PS12D TX-29PS12F TX-29PS12P CP-830FP Chassis SPECIFICATIONS Power Source: 220-240V a.c.,50Hz Power Consumption: 100W Stand-by Power Consumption: 1,5W Aerial Impedance: 75Ω unbalanced, Coaxial Type Receiving System: PAL-I, B/G, D/K, PAL-525/60 SECAM B/G, D/K, L,L’ M.NTSC (AV only) NTSC (AV only) Receiving Channels: VHF E2-E12 VHF H1-H2(ITALY) VHF A-H (ITALY) VHF R1-R2 VHF R3-R5 VHF R6-R12 UHF E21-E69 CATV (S01-S05) CATV S1-S10 (M1-M10) CATV S11-S20 (U1-U10) CATV S21-S41 (HYPERBAND) Intermediate Frequency: Video/Audio Video 38,9MHz, 33,9Mhz Sound 33,4MHz (B/G), 33,16MHz (A2) 33,05MHz (NICAM B/G,D/K,L) 32,4MHz (D/K), 32,66MHz (CZ STEREO) 40,4MHz (L’), 39,75MHz (L’NICAM) Colour 34,47MHz (PAL) 34,5MHz, 34,65MHz (SECAM) 38,3MHz, 38,15MHz (SECAM L’) Terminals: AV1 IN Video (21pin) 1V p-p 75Ω Audio(21pin) 500mV rms 10kΩ RGB (21pin) 0,7V p-p 75Ω AV1 OUT Video (21pin) 1V p-p 75Ω Audio (21pin) 500mV rms 1kΩ AV2 IN Video (21pin) 1V p-p 75Ω Audio(21pin) 500mV rms 10kΩ S-Video IN Y: 1V p-p 75Ω (21pin) C: 0,3V p-p 75Ω AV2 OUT Video (21pin) 1V p-p 75Ω Audio (21pin) 500mV rms 1kΩ AV3 FRONT Audio (RCAx2) 500mV rms 10kΩ Video (RCAx1) 1V p-p 75Ω S-Video IN Y: 1V p-p 75Ω C: 0,3V p-p 75Ω High Voltage: 29kV ± 1kV Picture Tube: A68ERF182X44 68cm Audio Output: 2x7W RMS, 2x14W MPO, 8Ω impedance Headphones: 8Ω impedance Accesories supplied: Remote Control 2xR6 (UM3) Batteries Dimensions: Height: 585 mm Width: 776 mm Depth: 533 mm Net weight: 44,0 kg Specifications are subject to change without notice. Weights and dimensions shown are approximate. Order No: PCZ0510103C2
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TX-29E50D TX-29E50D/B TX-29PS12D TX-29PS12F TX-29PS12P · PDF fileTX-29PS12F TX-29PS12P CP-830FP Chassis ... It is advisable to insert an isolation transformer ... TX-29PS12D, TX-29PS12F,
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SAFETY PRECAUTIONGENERAL GUIDE LINES1. It is advisable to insert an isolation transformer in the
a.c. supply before servicing a hot chassis.2. When servicing, observe the original lead dress in the
high voltage circuits. If a short circuit is found, replaceall parts that have been overheated or damaged by the short circuit.
3. After servicing, see that all the protective devicessuch as insulation barriers, insulation papers, shieldsand isolation R-C combinations are correctly installed.
4. When the receiver is not being used for a long periodof time, unplug the power cord from the a.c. outlet.
5. Potentials as high as 30kV are present when thisreceiver is in operation. Operation of the receiverwithout the rear cover involves the danger of a shockhazard from the receiver power supply. Servicingshould not be attempted by anyone who is notfamiliar with the precautions necessary when workingon high voltage equipment. Always discharge theanode of the tube.
6. After servicing make the following leakage currentchecks to prevent the customer from being exposedto shock hazard.
LEAKAGE CURRENT COLD CHECK1. Unplug the a.c. cord and connect a jumper between
the two prongs of the plug.2. Turn on the receiver’s power switch.3. Measure the resistance value with an ohmmeter,
between the jumpered a.c. plug and each exposedmetallic cabinet part on the receiver, such as screwheads, aerials, connectors, control shafts etc. Whenthe exposed metallic part has a return path to thechassis, the reading should be between 4M ohm and20M ohm. When the exposed metal does not have areturn path to the chassis, the reading must be infinite.
LEAKAGE CURRENT HOT CHECK1. Plug the a.c. cord directly into the a.c. outlet. Do not
use an isolation transformer for this check.2. Connect a 2kΩ 10W resistor in series with an
exposed metallic part on the receiver and an earth,such as a water pipe.
3. Use an a.c. voltmeter with high impedance tomeasure the potential across the resistor.
4. Check each exposed metallic part and check thevoltage at each point.
5. Reverse the a.c. plug at the outlet and repeat each ofthe previous measurements.
6. The potential at any point should not exceed1,4 Vrms. In case a measurement is outside the limitsspecified, there is a possibility of a shock hazard, andthe receiver should be repaired and rechecked beforeit is returned to the customer.
X-RADIATION WARNING1. The potential sources of X-Radiation in TV sets are
the high voltage section and the picture tube.2. When using a picture tube test jig for service, ensure
that the jig is capable of handling 30kV withoutcausing X-Radiation.
NOTE: It is important to use an accurate periodicallycalibrated high voltage meter.1. Set the brightness to minimum.2. Measure the high voltage. The meter should indicate:
29kV ± 1kV.If the meter indication is out of tolerance, immediateservice and correction is required to prevent thepossibility of premature component failure.
3. To prevent any X-Radiation possibility, it is essentialto use the specified tube.
HOT CHECK CIRCUIT
a.c. VOLTMETER
2k 10 Watts
TO INSTRUMENT’S EXPOSEDMETALLIC PARTS
WATER PIPE (EARTH)
Fig.1
3
SERVICE HINTSHow to remove the rear cover1. Remove the 10 screws as shown in Fig. 2.
SCREWS
SCREWS
Fig. 2
LOCATION OF CONTROLS
CRT Board
SCREEN FOCUS
MAIN BOARD CONTROL BOARD
Fig. 3
4
VOLTAGE CHECKSMT 2094.0074*
test conditions ;Input voltage : 230VACTV set on ON mode (if nothing specified)Picture : colour bar - DynamicSound : 1Khz - (mode : Music)
MAIN B+ Voltage [V] 129 ± 1 V D82014V [V] 13 ± 0,5 V D8318V [V] 7,4 ± 0,5 V D8305V [V] 4,6 ± 0,5 V D870
SOUND B+ [V] 13,2 ± 0,5 V *Volume Min.12,8 ± 0,5 V *Volume Max.
FBT 1302.2002*
test conditions ;Input voltage : 230VACCt = 11nFCs = 0,36uFL linearity: TRL-040FCRT : A68ERF182X044/M
High Voltage [V]28,08 ± 0,5 V load Max.29,44 ± 0,5 V load Min.
Retrace time 5,26 ± 0,2 usVcp [V] 1210 ± 20 V
Video Voltage [V] 180 ± 5%14V line [V] 14 ± 5%52V line [V] 52 ± 5%
Heater Voltage [Vrms] 6,2 ± 5%
G2 SCREEN / CUTOFF
Adjust the screen VR till G2-SCREEN get 32(31~33).1. Receive a Color bar pattern
2. set the TV into Service mode.
3. Select G2 SCREEN item.
OPTION BYTES
MODEL OPTION BYTE 1 OPTION BYTE 2TX-29E50D 0 0 1 1 1 0 0 0 0 x 38 0 1 1 0 1 0 1 1 0 x 6B
ALIGNMENT SETTINGS(The figures below are nominal and used for representative purposes only.)To access Service Mode select program position 99 and set sharpness to minimum.Press “MUTE” button on remote control and at the same time press the „∨” button on the customer controls at the front of the TV, this will place the TV set into Service Mode.Press ∧/∨ buttons to step up / down through the functions.Press + / - buttons to alter the function values.To exit Service Mode press „MENU” button.
No Setting in indicationNote : All settings are approximate Settings / Special features
1 PARABOLA + 3092 HOR WIDTH - 793 CORNER T - 894 CORNER B - 655 HOR PARAL 06 V. LINEAR - 107 EW-TRAPEZ + 428 S CORRECT + 1119 VERT CENT - 1
10 VERT SIZE - 811 SHIPPING OFF12 HOR CEN - 14013 RED GAIN + 34514 GRN GAIN + 32015 BLUE GAIN + 33016 RED BIAS + 15217 GRN BIAS + 28818 AGC LEVEL + 4519 G2 SCREEN + 3220 AFT + 3221 Bit0 ~ Bit7
Refer to the Option Bytes(Page4)22 Bit0 ~ Bit723 Bit0 ~ Bit7 0 x FF24 AVL OFF
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POWER BUS
POWER BUS
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13
PARTS LOCATION
NOTE:The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List.
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Components Identified by mark have special characteristics important for safety.* When replacing any of these components, use only manufacturers specified parts.In case of ordering these spare parts, please always add the complete Model-Type number to your order.
REPLACEMENT PARTS LIST
Important Safety Notice
DescriptionCct Ref Parts Number DescriptionCct Ref Parts Number
SCHEMATIC DIAGRAMS FOR MODELSTX-29E50D, TX-29E50D/B, TX-29PS12D, TX-29PS12F, TX-29PS12P
(CP-830FP CHASSIS)
IMPORTANT SAFETY NOTICEComponents identified by mark have special
characteristics important for safety. When replacing any of these components, use only manufactu-
rers’ specified parts.
NOTE1. RESISTOR
All resistors are carbon ¼W resistor, unless marked otherwise.Unit of resistance is OHM (Ω) (k=1,000, M=1,000,000)
2. CAPACITORSAll capacitors are ceramic 50V unless marked otherwise.Unit of capacitance is µF unless otherwise stated.
3. COILUnit of inductance is µH, unless otherwise stated.
4. EARTH SYMBOL
Chassis Earth (Cold)
Line Earth (Hot)
5. VOLTAGE MEASUREMENTVoltage is measured by a d.c. voltmeter.Measurement conditions are as follows:Power source a.c. 220V-240V, 50HzReceiving Signal Colour Bar signal (RF)All customer controls Maximum position
These schematic diagrams are the latest at time of printing and are subject to change without notice.
REMARKSa. Do not touch the hot part, or the hot and cold parts at the same time, as you are liable to a shock hazard.b. Do not short circuit the hot and cold circuits as electrical components may be damaged.c. Do not connect an instrument, such as an oscilloscope, to the hot and cold circuits simultaneously as this may cause fuse failure.
Connect the earth of the instruments to the earth connection of the circuit being measured.
d. Make sure to disconnect the power plug before removing the chassis.
NOTE1. The Power Supply Circuit contains a circuit area, which uses a separate power supply to isolate the earth connection. The circuit
is defined by HOT and COLD indications in the schematic diagram. All circuits, except the Power Circuit, are COLD.
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PTCPMSV29P1FF
CONDUCTOR VIEWS FOR MODELS TX-29E50D, TX-29E50D/B, TX-29PS12D, TX-29PS12F, TX-29PS12P