Panasonic TC-21GX30P Manuel utilisateur

Power

Source : AC AUTO 110-240V, 50/60 Hz

Power Consumption : 58W

Aerial Impedance : 75Ωunbalanced

Coaxial type

Receiving System : 17 Systems

Receiving Channels :

VHF

2-13(U.S.A Standard)

UHF

14-69(U.S.A Standard)

CATV

1-125(U.S.A Standard)

Audio

Terminal :

DVD

Y1.0 Vp-p, 75Ω

PB 0.7 Vp-p, 75Ω

PR 0.7 Vp-p, 75Ω

1, 2

Video In 1 Vp-p, 75Ω

Audio In Approx. 0.5V, 47kΩ

Monitor

Out

rights reserved. Unauthorized copying and

distribution is a violation of law.

TC-21GX30P

GL1 Chassis

Video Out 1 Vp-p, 75Ω

Audio Out Approx. 0.5V, 1kΩ

High Voltage : 27.5kV ±1.5

at zero beam current

Picture Tube : A51LYZ395X65

50.5cm (21 inches)

Measured diagonally,

90° deflection

Audio Output : 5W + 5w = 10W

Dimensions : Height : 472 mm

Width : 598 mm

Depth : 479 mm

Mass : 22.5 kg (Net Wt.)

Specifications are subject to change without notice.

Mass and dimensions shown are approximate.

Colour Television

Specifications

ORDER NO. MTV0701517CE

1.5. GL1 Chassis Block Diagram

GL1 BLOCK DIAGRAM

Antenna

TUNER

SAW

Rear Inputs

AV 1 : V / L / R

Front Inputs

AV 2 : V / L / R

YUV YUV

CVBS4

CVBS2

V OUT

H OUT

CRT

defl.

coil

MONITOR

OUT

SDA SCL

Audio Out Mon Out

AUDIO

AMP

IC2302

IC601

UOC

EEPROM

IC1103

IC851

5V & 8V

IC801

T801

IC880

3.3V

PRIMARY

LIFE CCT

SPEAKER

TC-21GX30P

2 Service Hints

2.1. Service Position for E-Board

1. Remove the back cover.

2. Stand the TV set as shown in Fig. 2.

3. Remove the A-Board from the TV set by pulling the main board out as shown in Figure 2.

Fig. 2

2.2. Factory Mode Adjustment

1. Adjustment.

a. Set Timer ON (30 minutes)

Press remote’s RECALL & panel’s vol down key simultaneously to select service mode.

b. CHK should appear on right side of TV screen.

After few seconds CHK 1 should appear on right side of TV screen.

NOTE :

To move from CHK 1 to CHK 2 mode, etc, please follow below rotation:-

c. CHK 1

Press digit key “4” to move option mode forward.

Press digit key “3” to move option backward.

The function rotation will be as follows :-

TC-21GX30P

d. After selecting the required option mode press Vol up / Vol down to adjust correct option. OSD will change to RED colour.

Press digit “0” to memorize data.

e. CHK2

Press digit key “2” to move forward to CHK2.

The function rotation will be as follows:-

f. Press digit key “4” to move forward from Colour ------> Sub-Colour, etc.

Press digit key “3” to move backward from Sub-Colour ------> Colour, etc.

g. Press volume up / volume down to adjust setting.

h. Press digit key “5” to make the AKB OFF (Blue OSD) - first time.

Press digit key “5” to make the AKB On (White OSD) - second time.

i. CHK3

Press digit key “2” to move forward to CHK 3.

The function rotation will be as follows:-

TC-21GX30P

j. Press digit key “4” to move forward from V-SLOPE ------> V-SHIFT

Press digit key “3” to move backward from V-SHIFT ------> V-SLOPE

k. Press volume up / volume down to adjust required setting.

l. CHK4

Press digit key “2” to move forward to CHK 4.

The function rotation will be as follows:-

m. Press digit key “4” to move forward from R-CUT ------> G-CUT

Press digit key “3” to move backward from G-CUT ------> R-CUT

n. After selecting the required mode, press volume up / volume down to adjust required setting.

o. Press digit key “5” to make the AKB OFF and H-Line mode - first time.

Press digit key “5” to make the AKB ON and Normal picture - second time.

p. After finish adjustment, press Power ON / OFF button on remote control to go to normal TV mode.

2. HOW TO CHANGE CHANNEL BY I2C BUS CONTROLLER

a. Short FA1 and FA2

b. Select Slave address ‘70H’, Sub-address ‘43H’ for RF AGC.

*Example:

Slave Address = 70H’, Sub-Address = 43H’

Data = 80H’ = Center

TC-21GX30P

2.3. Adjustment for White Balance

Preparation:

1. Receive the white balance pattern and aging should have been performed over 30 minutes.

2. Set the picture menu to DYNAMIC NORMAL.

3. Degausse the CRT face.

4. Fix the CRT colour analyzer receiver unit to CRT face.

Adjustment of Low Light.

1. Adjustment Sub Bright, so that Y = 6.3 ± 1.0 nit.

2. Adjustment R-CUT OFF, so that X = 0.233 ± 0.015 nit.

3. Adjustment G-CUT OFF, so that Y = 0.235 ± 0.015 nit.

Adjustment of High Light

1. Adjustment Sub Bright, so that Y = 150 nit.

2. Adjustment R-Drive, so that X = 0.262 ± 0.010 nit.

3. Adjustment G-Drive, so that Y = 0.264 ± 0.010 nit.

2.4. Adjustment for CRT CUT OFF

Preparation:

1. Connect the oscilloscope probe to TPL5.

2. Screen VR min.

3. Set the data Sub Bright, Bright.

4. In service Mode at “Bright” dac press [5] in factory mode to enter vertical line and adjust by volume down or up button.

5. Adjust “Screen VR” until 1-H Line appears.

TC-21GX30P

2.5. Adjustment Procedure

2.5.1. +B Voltage

Item / preparation

1. Operate the TV set.

2. Set control as follows :

Brightness ........... minimum

Contrast ............... minimum

Adjustment procedure

1. Confirm the DC voltage at the indicated test points, as follows :

TPA 10 : 141 ± 1.5V

TPA 12 : 3.3 ± 0.5V

TPA 09 : 5 ± 1V

2.5.2. High Voltage

Item / preparation

1. Receive the crosshatch pattern.

2. Set to 0 Beam.

Screen VR .......... minimum

Contrast .............. minimum

Adjustment procedure

1. Connect a DC voltage meter to TPA 10 and confirm the +B voltage is 141.0 ± 1.5V.

2. Connect a high frequency voltmeter to heater and confirm that voltage reads 6.3 ± 0.24 (VRMS).

3. Normalize the brightness and contrast.

TC-21GX30P

4.2. L Board

4.2.1. L Board (1/3)

<1A>

<2A>

<3A>

<4A>

<5A>

TC-21GX30P

4.2.2. L Board (2/3)

<1B>

<2B>

<3B>

<4B>

<5B>

<6B>

<1A>

<2A>

<3A>

<4A>

<5A>

TC-21GX30P

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