Read Panasonic TX-R32LX80K Service Manual online
TX-R32LX80K
LH80 Chassis
LCD TV
Specifications
Power Source :
AC SINGLE 220-240 V, 50/60 Hz
Power Consumption
Average Use
138 W
Standby condition
1.0 W
Display panel
Aspect Ratio
16:9
Visible screen size
698 mm (W) × 392 mm (H)
(No. of pixels)
1,049,088 (1,366 (W) × 768 (H))
Sound
Speaker
Full range × 2 pcs, 8
Ω
Audio Output
20 W (10 W + 10 W), 10% THD
Headphones
M3 (3.5 mm) Jack × 1
PC signals
VGA, SVGA, XGA, WVGA, WXGA
Vertical scanning frequency 60 Hz
Receiving Systems / Band name
SYSTEMS
FUNCTIONS
———————————————————————————————————————
1
PAL B, G, H
2
PAL I
Reception
of broadcast
playback from
video cassette tape
recorders.
3
PAL D, K
4
SECAM B, G
5
SECAM D, K
6
SECAM K1
7
NTSC M (NTSC 3.58 / 4.5 MHz)
———————————————————————————————————————
8
NTSC 4.43 / 5.5 MHz
Playback from
special VCR’s or DVD.
9
NTSC 4.43 / 6.0 MHz
ORDER NO. MTV0801618CE
1 Safety Precautions
4
1.1.
General Guidelines
4
1.2.
Touch-Current Check
4
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
5
3 About Lead Free Solder (PbF)
6
4 Self Check Function
7
4.1.
Self Check
7
4.2.
Power LED Blinking Timing Chart
7
5 Chassis Board
9
5.1.
Chassis Installation
9
6 Location of Lead Wiring
10
6.1.
Wire Dressing
10
6.2.
Wire Dressing and Connections
10
7 Disassembly for Service
11
7.1.
AC Code dressing for 2-Pin
11
10 NTSC 4.43 / 6.5 MHz
11 NTSC 3.58 / 5.5 MHz
Playback from
special VCR’s or DVD.
12 NTSC 3.58 / 6.0 MHz
13 NTSC 3.58 / 6.5 MHz
14 SECAM I
———————————————————————————————————————
15 PAL 60 Hz / 5.5 MHz
Playback from
Special Disc Players
and Special VCR’s or DVD.
16 PAL 60 Hz / 6.0 MHz
17 PAL 60 Hz / 6.5 MHz
Aerial - Rear
VHF / UHF
Operation Conditions
Temperature : 0°C - 35°C
Humidity : 20% -- 80% RH (non-condensing)
Connection Terminals :
AV1
AUDIO L-R
RCA PIN Type × 2
0.5 V[rms]
Input
VIDEO
RCA PIN Type × 1
1.0 V[p-p] (75
Ω )
AV2
AUDIO L-R
RCA PIN Type × 2
0.5 V[rms]
Input
VIDEO
RCA PIN Type × 1
1.0 V[p-p] (75
Ω )
COMPONENT
Y
1.0 V[p-p] (including synchronization)
P
B
/ C
B
, P
R
/ C
R
±0.35 V[p-p]
AV3
AUDIO L-R
RCA PIN Type × 2
0.5 V[rms]
Input
VIDEO
RCA PIN Type × 1
1.0 V[p-p] (75
Ω )
S VIDEO
Mini DIN 4-pin
Y: 1.0 V[p-p] (75
Ω) C: 0.286 V[p-p] (75 Ω)
Others
HDMI 1/2 Input
TYPE A Connectors
Audio Input for
HDMI 1
HDMI 1
RCA PIN Type × 2
0.5 V[rms]
PC Input
HIGH-DENSITY D-SUB 15 PIN
R, G, B / 0.7 V[p-p] (75
Ω)
HD, VD / TTL LEVEL 2.0-5.0 V[rms] (high
impedance)
impedance)
Monitor
AUDIO L-R
RCA PIN Type × 2
0.5 V[rms] (high impedance)
Output
VIDEO
RCA PIN Type × 1
1.0 V[p-p] (75
Ω )
Dimensions (W × H × D)
820 mm × 578 mm × 225 mm (With TV Stand)
820 mm × 539 mm × 110 mm (TV only)
Mass
17 kg (Net)
Design and specifications are subject to change without notice. Mass and dimensions shown are approximate.
CONTENTS
Page
Page
2
TX-R32LX80K
7.2.
AC Code dressing for 3-Pin
11
7.3.
Chassis Rail Installation
12
7.4.
VESA Bracket Installation
13
7.5.
Pedestal Assembly Preparation
14
7.6.
LED Panel Installation
16
7.7.
LCD Panel Assembly Installation
17
8 Service Mode Adjustment
18
8.1.
SERVICE 1
18
8.2.
SERVICE 2
18
8.3.
Self Check Mode
18
8.4.
Hotel Mode Adjustment
18
9 Adjustment
20
9.1.
Voltage Chart of A Board
20
9.2.
Voltage Chart of P board
20
9.3.
DVCO Adjustment
20
10 Conductor Views
21
10.1. A-Board
21
10.2. A-Board
22
11 Schematic Diagram
23
11.1. Schematic Diagram Notes
23
11.2. A Board
24
11.3. G Board
34
11.4. K Board
36
11.5. P Board
37
11.6. SW Board
41
11.7. V Board
42
11.8. Z Board
46
12 Parts Location & Mechanical Replacement Parts List
50
12.1. Parts Location
50
13 Packing Exploded View
51
14 Replacement Parts List
52
14.1. Electrical Replacement Parts List
53
3
TX-R32LX80K
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.
1.2. Touch-Current Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth ground such
2. Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth ground such
as a water pipe as shown in Figure 1.
3. Use the Leakage Current Tester (Simpson 228 or equivalent) to measure the potential across the measuring network.
4. Check each exposed metallic part and measure the voltage at each point.
5. The potential at any point (touch current) expressed as voltage U
4. Check each exposed metallic part and measure the voltage at each point.
5. The potential at any point (touch current) expressed as voltage U
1
and U
2
, do not exceed the following values:
For AC: U
1
= 35 V (peak) and U
2
= 0.35 V (peak);
For DC: U
1
= 1.0 V,
NOTE :
The limit value of U
The limit value of U
2
= 0.35 V (peak) for AC and U
1
= 1.0 V for DC correspond to the values 0.7 mA (peak) AC and 2.0 mA DC.
The limit value U
1
= 35 V (peak) for AC correspond to the value 70 mA (peak) AC for frequencies greater than 100 kHz.
6. Should a measurement be out 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.
4
TX-R32LX80K