Read Panasonic TC-15DT2 Service Manual online
Power Source
AC 120V, 60Hz
Power Consumption
Average use: 54.2W (Maximum Current 3.62A)
Stand-by condition: 0.45 W
LCD
TFT 15.2-inch, 16:9 aspect ratio, 854 x 480 dots, 409.920
pixel
pixel
Screen Size
13.19" (335mm)(W) x 7.4" (188mm)(H) x 15.12”(384mm)
(DIAGONAL)
(DIAGONAL)
Channel Capability-181
VHF-12: UHF-56: Cable-125
Sound
Speaker
3” 5/32 (8cm) x 2
Audio Output
6W [3W+3W] (10%THD) Power Frequency Response
35Hz~16kHz
35Hz~16kHz
Headphones
M3(3.5 mm) Jack (16
Ω ~ 32Ω)
FEATURES
DVD Player
3D Y/C FILTER
CLOSED CAPTION
V-Chip
Disc Played
DVD-VIDEO/DVD-AUDIO disc
12cm single-sided, single-layer
12cm single-sided, dual-layer
12cm double-sided, single-layer
8cm single-sided, single-layer
8cm single-sided, dual-layer
TC-15DT2
LV1M Chassis
8cm double-sided, single-layer
COMPACT disc (CD-DA, VIDEO CD)
12cm disc
8cm disc
Accessories Supplied
Remote control Transmitter
TNQE262
AAA (R03) Battery x 2
Operating Conditions
Temperature: 34°F - 104°F(5°C - 35°C)
Humidity: 20% - 80% (non-condensing)
Connection Terminals
VIDEO INPUT
S-VIDEO (Mini DIN 4-pin)
Y:1Vp-p(75
Ω)
C: 0.286Vp-p(75
Ω)
VIDEO (Pin Jack)
1Vp-p(75
Ω)
AUDIO L-R (Pin Jack x2) 0.5 Vrms (TV/Video)
2.0 Vrms (DVD/CD)
AUDIO OUT
5.1ch SURROUND AUDIO OUT
FRONT L/R: STEREO M3 JACK
SURROUND L/R: STEREO M3 JACK
CENTER/SUBWOOFER: STEREO M3 JACK
Dimensions (W x H x D)
15.24" (387mm) x 14.69" (373mm) x 8.9"(226mm)
Weight (Mass)
21.19lb. (about 9.6kg) Net
Note:
Design and Specifications are subject to change without notice.
Weight and Dimensions shown are approximate.
Weight and Dimensions shown are approximate.
Combination 15.2” LCD TV/DVD Player
ORDER NO. ITD0011014C1
B05
1 Safety Precautions
4
1.1. General Guidelines
4
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
4
3 Precaution of Laser Diode
5
4 Handling Precautions For Traverse Deck
5
4.1. Handling of optical pickup
5
4.2. Grounding for electrostatic breakdown prevention
5
5 Self-check function
6
5.1. How to access
6
5.2. Screen display
6
5.3. Display phenomenon and treatment method
6
5.4. DVD self-diagnosis
6
6 Servicing method (DVD unit)
8
6.1. When disc is unloadable
8
6.2. Replacing A-PCB
9
6.3. Replacing H-PCB and PD-PCB
14
6.4. Replacing HA-PCB
15
6.5. Replacing K-PCB (operation panel) and J-PCB (junction)
15
6.6. Replacing PS-PCB (power supply switch)
16
6.7. Replacing speakers (SP)
16
7 Servicing method (LCD panel)
17
7.1. Replacing LCD panel PCB
17
7.2. Removing fluorescent lamp
18
7.3. Adjustment of LCD panel PCB
19
7.4. Service Position
20
8 Assembling and Disassembling the Optical Pickup
(Mechanical Parts)
21
8.1. Handling the Optical Pickup
21
8.2. Disassembly Procedure
21
8.3. Disassembling the Clamp Base Unit
22
8.4. Disassembling the Clamper Weight, Clamper Yoke,
Magnet and Clamper
22
8.5. Disassembling the Traverse Unit
22
8.6. Disassembling the Stepping Motor Unit
23
8.7. Disassembling the Optical Pickup Unit
23
8.8. Disassembling the Nut Unit
24
8.9. Disassembling the Sub-Shaft Preload Spring
24
8.10. Assembling the Optical Pickup
24
8.11. Disassembling the Spindle Motor Unit
25
8.12. Disassembling the Intermediate Chassis
26
8.13. Disassembling the Vertical cam and Drive gear
26
8.14. Disassembling the Pulley Gear and Deceleration Gear 26
8.15. Disassembling the Mechanism Loading P.C.B.
26
9 Service Tools and Equipment
27
9.1. Service Tools and Equipment Table
27
9.2. Storing and Handling Test Discs
27
10 Adjustment method
28
10.1. How to enter into adjustment mode
28
10.2. Cancellation
28
10.3. Contents of adjustment mode
28
10.4. DVD level adjustment
29
10.5. Video level adjustment
31
11 Conductor Views
33
11.1. P-Board
33
11.2. A-Board
35
11.3. DG-Board
38
11.4. H, HA, J, K, PD, PSand Z-Board
40
11.5. DVD Module-Board
41
12 Abbreviations
45
13 Voltage Chart
47
13.1. DVD Module Board
47
14 Block and Schematic Diagram
51
14.1. Schematic Diagram Notes
51
14.2. DVD Overall Block Diagram
52
14.3. DVD Servo Block Diagram
53
14.4. Power Block Diagrams
54
14.5. Signal Block Diagrams
56
14.6. DG-Board Block Diagrams
58
14.7. Interconnection Schematic Diagrams
59
14.8. H, HA, and A-Board (1/6) Schematic Diagrams
60
14.9. A-Board (2/6) Schematic Diagrams
61
14.10. A-Board (3/6) Schematic Diagrams
62
14.11. A-Board (4/6) Schematic Diagrams
63
14.12. A-Board (5/6) Schematic Diagrams
64
14.13. A-Board (6/6) Schematic Diagrams
65
14.14. DG-Board (1/4) Schematic Diagram
66
14.15. DG-Board (2/4) Schematic Diagram
67
14.16. DG-Board (3/4) Schematic Diagram
68
14.17. DG-Board (4/4) Schematic Diagram
69
14.18. J, K, and PS-Board Schematic Diagram
70
14.19. P-Board (1/3) and Z-Board Schematic Diagram
71
14.20. P-Board (2/3) and PD-Board Schematic Diagram
72
14.21. P-Board (3/3) Schematic Diagram
73
14.22. ADSC Section (DVD Module Board (1/8)) Schematic
Diagram
74
14.23. AV Decorder Section (DVD Module Board (2/8))
Schematic Diagram
75
CONTENTS
Page
Page
2
TC-15DT2
14.24. Video D/A Converter Section (DVD Module Board (3/8))
Schematic Diagram
76
14.25. Audio Section (DVD Module Board (4/8)) Schematic
Diagram
77
14.26. FEP Section (DVD Module Board (5/8)) Schematic
Diagram
78
14.27. CPU Section (DVD Module Board (6/8)) Schematic
Diagram
79
14.28. ODC Section (DVD Module Board (7/8)) Schematic
Diagram
80
14.29. CSS2 Section (DVD Module Board (8/8)) Schematic
Diagram
81
15 Exploded Views
83
15.1. Casing Parts Section Exploded View
83
15.2. Packing Section Exploded View
84
15.3. DVD Loading Mechanism Section Exploded View
85
15.4. DVD Traverse Section Exploded View
86
16 Replacement Parts List
87
16.1. Relpacement Parts List Notes
87
16.2. Mechanical Replacement Parts List
88
16.3. DVD Mechanical Replacement Parts List
89
16.4. Electrical Replacement Parts List
90
16.5. DVD Electrical Replacement Parts List
102
17 Dimensions
107
3
TC-15DT2
1.1.1.
Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two
prongs on the plug.
2. Measure the resistance value, with an ohmmeter, between
the jumpered AC plug and each exposed metallic cabinet
part on the equipment such as screwheads, connectors,
control shafts, etc. When the exposed metallic part has a
return path to the chassis, the reading should be between
1M
part on the equipment such as screwheads, connectors,
control shafts, etc. When the exposed metallic part has a
return path to the chassis, the reading should be between
1M
Ω and 5.2MΩ.
When the exposed metal does not have a return path to
the chassis, the reading must be
.
Figure 1
1.1.2.
Leakage Current Hot Check (See
Figure 1.)
Figure 1.)
1. Plug the AC cord directly into the AC outlet. Do not use an
isolation transformer for this check.
2. Connect a 1.5k
Ω, 10 watts resistor, in parallel with a 0.15µF
capacitors, between each exposed metallic part on the set
and a good earth ground such as a water pipe, as shown in
Figure 1.
and a good earth ground such as a water pipe, as shown in
Figure 1.
3. Use an AC voltmeter, with 1000 ohms/volt or more
sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the
voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the
above measurements.
6. The potential at any point should not exceed 0.75 volts
RMS. A leakage current tester (Simpson Model 229 or
equivalent) may be used to make the hot checks, leakage
current
equivalent) may be used to make the hot checks, leakage
current
must
not
exceed
1/2
milliamp.
In
case
a
measurement is outside of the limits specified, there is a
possibility of a shock hazard, and the equipment should be
repaired and rechecked before it is returned to the
customer.
possibility of a shock hazard, and the equipment should be
repaired and rechecked before it is returned to the
customer.
1 Safety Precautions
1.1.
General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ESdevices, place the assembly on a conductive surface such as alminum
foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ESdevices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static (ESD protected)" can
generate electrical charge sufficient to damage ESdevices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESdevices.
6. Do not remove a replacement ESdevice from its protective package until immediately before you are ready to install it. (Most
replacement ESdevices are packaged with leads electrically shorted together by conductive foam, alminum foil or comparable
conductive material).
conductive material).
7. Immediately before removing the protective material from the leads of a replacement ESdevice, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
4
TC-15DT2