Technical Information

PC connection

A PC may be connected to this TV so that the PC screen is displayed and sound is heard from the TV.

FAQs

Before requesting service or assistance, please follow these simple guides to resolve the problem. If problem still persists, please contact your local Panasonic dealer for assistance.

PC signals that can be inputted: Horizontal scanning frequency 31 to 69 kHz; vertical scanning frequency 59 to 86 Hz (more than 1,024 signal lines could result in incorrect display of the image).

A PC adapter is not necessary for the DOS/V-compliant D-sub 15-pin connector.

Note

Some PC models cannot be connected to this TV.

When using PC, set the colour display quality of PC to the highest position.

For details of the applicable PC signals, see below.

Max. display resolution

4:3

768 × 768 pixels

Aspect

 

 

16:9 1,024 × 768 pixels

 

D-sub 15-pin connector signal

5

4

3

2

1

Pin No.

Signal Name

Pin No.

Signal Name

Pin No.

Signal Name

 

 

 

 

 

 

10

9

 

8

7 6

 

R

 

GND (Ground)

 

NC (not connected)

15 14

13

12

11

 

G

 

GND (Ground)

 

NC (not connected)

 

 

 

 

 

 

B

 

GND (Ground)

 

HD

 

 

 

 

 

 

NC (not connected)

 

NC (not connected)

 

VD

 

 

 

 

 

 

GND (Ground)

 

GND (Ground)

 

NC (not connected)

White spots or shadow images (noise)

Check the position, direction, and connection of the aerial.

Neither image nor sound is produced

Is the TV in “AV mode”?

Isoutlet?the mains lead plugged into the socket

Is the TV turned On?

Check Picture Menu (p. 20) and volume.

Permanently lit spots on screen

Due to production process involved in this technology this may result in some pixels which are permanently lit or unlit. This is not a malfunction.

Input signal that can be displayed

COMPONENT (Y, PB/CB, PR/CR), HDMI

Mark: Applicable input signal

Signal name

COMPONENT

HDMI

480i (60 Hz)

480p (60 Hz)

576i (50 Hz)

576p (50 Hz)

720p (50 Hz)

An error message appears

Follow the message’s instructions.

If the problem persists, contact the authorized Service Centre.

Contrast is reduced

Contrast is lowered when the following conditions without any user operation for a few minutes:

Ɣno signal in DVB or AV mode

Ɣselected invalid channel

Ɣselected radio channel

Ɣdisplayed menu

720p (60 Hz)

1,080i (50 Hz)

1,080i (60 Hz)

1,080p (50 Hz)

 

1,080p (60 Hz)

 

PC (D-sub 15P)

 

 

Signal name

Horizontal frequency (kHz)

Vertical frequency (Hz)

640 × 400 @70 Hz

31.47

70.07

640 × 480 @60 Hz

31.47

59.94

640 × 480 @75 Hz

37.50

75.00

800 × 600 @60 Hz

37.88

60.32

800 × 600 @75 Hz

46.88

75.00

800 × 600 @85 Hz

53.67

85.06

852 × 480 @60 Hz

31.44

59.89

1,024

× 768 @60 Hz

48.36

60.00

1,024

× 768 @70 Hz

56.48

70.07

1,024

× 768 @75 Hz

60.02

75.03

1,024

× 768 @85 Hz

68.68

85.00

1,280

× 1,024 @60 Hz

63.98

60.02

1,366

× 768 @60 Hz

48.39

60.04

Macintosh13” (640 × 480)

35.00

66.67

Macintosh16” (832 × 624)

49.73

74.55

Macintosh21” (1,152 × 870)

68.68

75.06

Note

Signals other than above may not be displayed properly.

 

The above signals are reformatted for optimal viewing on your display.

 

 

Applicable input signal for PC is basically compatible to VESA standard timing.

 

 

PC signal is magnifi ed or compressed for display, so that it may not be possible to show fi ne detail

 

 

with suffi cient clarity.

 

 

ProblemActions

 

 

 

 

 

 

 

Set “P-NR” in the Picture Menu (to remove noise). (p. 20)

 

 

Chaotic image, noisy

 

FrequentlyAskedQuestions TechnicalInformation

ScreenSound

Sound signal reception may be deteriorated.

 

or sound is distorted

 

 

 

••Check nearby electrical products (car, motorcycle, fluorescent lamp).

 

No image can be displayed

(p.Is “Colour”20)

or “Contrast” in the Picture Menu set to the minimum?

 

Blurry or distorted image

Reset channels. (p. 24)

 

 

 

(no sound or low volume)

 

 

 

Unusual image is displayed

again.Turn off the TV with Mains power On / Off switch, then turn it on

 

 

 

No sound is produced

Is “Sound mute” active? (p. 7)

 

 

 

••Is the volume set to the minimum?

 

 

 

 

 

 

 

Sound level is low

 

 

 

 

HDMI

 

 

 

FAQs,etc.

are unusual when the equipment

Check an input signal from the equipment. (p. 36)

 

 

 

Set the sound setting of the connected equipment to “2ch L.PCM”.

 

 

 

Sound is unusual

Check the “HDMI Input” setting in the Sound Menu. (p. 20)

 

 

 

If digital sound connection has a problem, select analogue sound

 

 

 

 

connection. (p. 29)

 

 

 

Pictures from external equipment

Is the HDMI cable connected properly? (p. 32)

 

 

 

Turn Off the TV and equipment, then turn them On again.

 

 

 

is connected via HDMI

••Use an equipment compliant with EIA/CEA-861/861B.

 

 

36

37

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Panasonic TH-42PX7A operating instructions FAQs, PC connection, Input signal that can be displayed