Service Manuals, User Guides, Schematic Diagrams or docs for : panasonic TV TX-G10 chassis AC1 AG10
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ORDER No. SM-98042
Portable Colour Television
TX-G10
AC1 Chassis
SPECIFICATIONS
AV2 IN Audio (RCAx1) 500mV rms10k
Power Source: 220-240V a.c., 50Hz Video (BNCx1) 1V p-p 75
12-24V d.c.
AV2 OUT Audio Monitor Out
Power Consumption: 39W Video Monitor Out
Aerial Impedance: 75 unbalanced, Coaxial Type High Voltage: 20kV +0,7kV/-1kV
Stand-by Power Picture Tube: A23KQU22X01
Consumption: 1W
Audio Output: 3,5W (Music Power)
Receiving System: PAL-I, B/G, H, D/K, PAL-525/60 8 Impedance
SECAM L/L' B/G, D/K
M.NTSC, NTSC (AV only) Headphones: 8 Impedance
3,5 mm
Intermediate Frequency: Accessories
Video 39,5MHz, 38,9MHz, 34MHz supplied : Remote Control
Sound 32,9MHz, 33,4MHz, 33,16MHz 2 x R6 (UM3) Batteries
32,4MHz, 40,4MHz
Colour 34,47MHz (PAL) Dimensions:
34,5MHz, 34,65MHz (SECAM) Height: 272 mm
Width: 283 mm
Receiving Channels: VHF E2-E12 VHF H1-H2 (ITALY) Depth: 309 mm
VHF A-H (ITALY) VHF R1-R2
VHF R3-R5 VHF R6-R12
UHF E21-E69 CATV (S01-S05) Net weight: 7kg
CATV S1-S10 (M1-M10) CATV S11-S20 (U1-U10)
CATV S21-S41 (HYPERBAND) Specifications are subject to change without notice.
Weights and dimensions shown are approximate.
Video/Audio
Terminals:
AV1 IN Video (21 pin) 1V p-p 75 NOTE: This Service Manual should be used in conjunction with
Audio (21 pin) 500mV rms 10k the AC1 Technical Guide.
AV1 IN (Front) Audio (RCAx1) 500mV rms10k
Video (RCAx1) 1V p-p 75
S-Video IN Y: 1V p-p 75
(4 pin) C: 0.3V p-p 75
AV1 OUT Video (21 pin) 1V p-p 75
Audio (21 pin) 500mV rms 1k
Panasonic CS ( U.K. ) Ltd.
WILLOUGHBY ROAD,
BRACKNELL,
BERKS.,
RG12 8FT.
CONTENTS
SAFETY PRECAUTIONS..........................................................................................................................................................2
SERVICE HINTS .......................................................................................................................................................................3
SERVICE POSITION.................................................................................................................................................................4
ADJUSTMENT PROCEDURE...................................................................................................................................................5
WAVEFORM PATTERN TABLE ...............................................................................................................................................6
ALIGNMENT SETTINGS...........................................................................................................................................................7
BLOCK DIAGRAMS ..................................................................................................................................................................8
PARTS LOCATION .................................................................................................................................................................12
REPLACEMENT PARTS LIST ................................................................................................................................................13
SCHEMATIC DIAGRAMS .......................................................................................................................................................22
CONDUCTOR VIEWS.............................................................................................................................................................25
SAFETY PRECAUTIONS
GENERAL GUIDE LINES
1. It is advisable to insert an isolation transformer in the 6. The potential at any point should not exceed
a.c. supply before servicing a hot chassis. 1,4 Vrms. In case a measurement is outside the limits
2. When servicing, observe the original lead dress in the specified, there is a possibility of a shock hazard, and
high voltage circuits. If a short circuit is found, replace the receiver should be repaired and rechecked before
all parts that have been overheated or damaged by it is returned to the customer.
the short circuit.
3. After servicing, see that all the protective devices HOT CHECK CIRCUIT
such as insulation barriers, insulation papers, shields
and isolation R-C combinations are correctly
installed. A.C. VOLTMETER
4. When the receiver is not being used for a long period
of time, unplug the power cord from the a.c. outlet.
5. Potentials as high as 20,7kV are present when this
receiver is in operation. Operation of the receiver
without the rear cover involves the danger of a shock
hazard from the receiver power supply. Servicing
should not be attempted by anyone who is not 2k 10 Watts WATER PIPE
(EARTH)
familiar with the precautions necessary when working
on high voltage equipment. Always discharge the TO INSTRUMENT'S EXPOSED
anode of the tube. METALLIC PARTS
Fig. 1.
6. After servicing make the following leakage current
checks to prevent the customer from being exposed
to shock hazard.
LEAKAGE CURRENT COLD CHECK X-RADIATION WARNING
1. Unplug the a.c. cord and connect a jumper between 1. The potential sources of X-Radiation in TV sets are
the two prongs of the plug. the high voltage section and the picture tube.
2. Turn on the receiver's power switch. 2. When using a picture tube test jig for service, ensure
3. Measure the resistance value with an ohmmeter, that the jig is capable of handling 20,7kV without
between the jumpered a.c. plug and each exposed causing X-Radiation.
metallic cabinet part on the receiver, such as screw
heads, aerials, connectors, control shafts etc. When NOTE: It is important to use an accurate periodically
the exposed metallic part has a return path to the calibrated high voltage meter.
chassis, the reading should be between 4M ohm and 1. Set the brightness to minimum.
20M ohm. When the exposed metal does not have a 2. Measure the high voltage. The meter should
return path to the chassis, the reading must be indicate :- 20kV +0,7kV/-1kV If the meter indication is
infinite. out of tolerance, immediate service and correction is
LEAKAGE CURRENT HOT CHECK required to prevent the possibility of premature
1. Plug the a.c. cord directly into the a.c. outlet. Do not component failure.
use an isolation transformer for this check. 3. To prevent any X-Radiation possibility, it is essential
2. Connect a 2k 10W resistor in series with an to use the specified tube.
exposed metallic part on the receiver and an earth,
such as a water pipe.
3. Use an a.c. voltmeter with high impedance to
measure the potential across the resistor.
4. Check each exposed metallic part and check the
voltage at each point.
5. Reverse the a.c. plug at the outlet and repeat each of
the above measurements.
2
SERVICE HINTS
How to remove the rear cover
1. Remove the 7 screws as shown in Fig.2.
2. Push clips (A) and elevate lid.
3. Remove the 2 screws as shown in Fig.3.
Clips
(A)
SCREWS SCREWS
Fig.2. Fig.3.
LOCATION OF CONTROLS
Y - Board
Focus
Screen
Q - Board
S 451
E - Board Vertical Position
Fig.4.
3
HOW TO MOVE THE CHASSIS INTO SERVICE POSITION
1. Remove the backcover screws and clips as shown in Fig.2 and Fig.3 (page3.).
2. Release chassis from right-hand chassis rail and partially withdraw.
3. Rotate, clockwise, the whole T.V. vertically through 90◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo