Panasonic TX-32PS1, TX-28PS1 Diagram

ORDER No. 03-SM-001

Colour Television

TX-32PS1 TX-28PS1

EURO- 10 Chassis

SPECIFICATIONS

(Information in brackets [ ] refers to model TX-28PS1)

Power Source: 220-240V a.c., 50Hz

Power Consumption: 90W [85W]

Stand-by Power Consumption: 1,0W

Aerial Impedance: 75W unbalanced, Coaxial Type

Receiving System: PAL I, PAL-525/60

M.NTSC (AV only) NTSC (AV only)

Receiving Channels: UHF E21-E68

Intermediate Frequency: Video/Audio

Video 39,5MHz

Audio 33,5MHz

32,95MHz (NICAM)

Colour 35,07MHz

Terminals:

AUDIO MONITOR OUT Audio (RCAx2) 500mV rms 1kW

AV1 IN Video (21 pin) 1V p-p 75W

Audio (21 pin) 500mV rms 10kW RGB (21 pin) 0,7V p-p 75W

AV1 OUT Video (21 pin) 1V p-p 75W

Audio (21 pin) 500mV rms 1kW

AV2 IN Video (21 pin) 1V p-p 75W

Audio (21 pin) 500mV rms 10kW S-Video IN Y: 1V p-p 75W (21-pin) C:0,3V p-p 75W

AV2 OUT Video (21 pin) 1V p-p 75W

Audio (21 pin) 500mV rms 1kW

AV3 IN S-Video IN Y: 1V p-p 75W

(4-pin) C:0,3V p-p 75W Audio (RCAx2) 500mV rms 10kW Video (RCAx1) 1V p-p 75W

High Voltage: 32,0kV ± 1kV

[30,5kV ± 1kV]

Picture Tube: W76EKX50X21 76cm

[W66EKT50X21 66cm]

Audio Output: 2 x 7W RMS, 2 x 15W MPO

8W Impedance

Headphones: 8W Impedance

Accessories supplied : Remote Control

2 x R6 (UM3) Batteries

Dimensions:

Height: 564mm [509mm] Width: 902mm [807mm] Depth: 553mm [534mm]

Net weight: 55,5kg [43kg]

Specifications are subject to change without notice. Weights and dimensions shown are approximate.

Panasonic CS ( U.K. ) Ltd.

WILLOUGHBY ROAD,

BRACKNELL,

BERKS.,

RG12 8FT.

ADJUSTMENT PROCEDURE

Item / Preparation Adjustments +B SET-UP

1. Receive a Window pattern.

2. Set the controls :

Brightness Minimum

Contrast Minimum

Volume Minimum

CUT OFF / Ug2 Test

1. Receive a Greyscale signal.

2. Degauss the tube externally.

3. Set the TV into Service Mode 1.

4. Select Cut off mode.

Confirm the following voltages.

TPD1 220 ± 10V TPD11 3,3 ± 0,2V TPD2 137 ± 1,5V TPD12 5 ± 0,25V TPD3 26,5 ± 1,5V TPD13 31 ± 1,5V TPD4 5 ± 0,25V TPD14 26 ± 1V TPD5 38 ± 1,5V TPD15 -13,5 ± 1V TPD6 6,4 -0,5/+0,8V TPD16 13,5 ± 1V TPD7 13,6 ± 0,5V TPG1 2,5 ± 0,2V TPD9 8 ± 0,5V TPG2 3,3 ± 0,2V TPD10 12 ± 0,5V

To adjust Cutoff connect an oscilloscope to the Blue cathode. Adjust “cutoff” value using the “Yellow” and “Blue” buttons until the black level is 160V +5V/-0V press “TV/AV” to store the value. Remove the oscilloscope. Select Ug2 adjustment and adjust the screen VR until the display shows “O.K.”

SELF CHECK

Self-check is used to automatically check the bus lines and hexadecimal code of the TV set.To enter Self-Check mode, press the STATUS button on the remote control and at the same time press the down (-/v) button on the customer controls at the front the TV set. To exit Self Check, switch off the TV set at the power button.

VDP O.K. TUN O.K. E2 O.K.

PCB O.K. CAB O.K. SUM ****

MSP O.K. Avs O.K. DPL - - MAS - - -

OPTION 1 00 OPTION 2 E1 OPTION 3 82 OPTION 4 60 OPTION 5 B1 OPTION 6 E9

If the CCU ports have been checked and found to be incorrect or not located then " - - " will appear in place of "O.K.".

Service Aids

To aid in the service of our current chassis there are a number of Service Aids which have been made available.

· LUCI interface kit (Linked Utility Computer Interface) Part number: TZS6EZ002 This contains interface and cables for connecting TV service connector and a PC as well as diagnostic software. As new models are introduced upgrade software will become available.

· VICI (Visual Interactive Computer Information) These C.D.'s contain multimedia documentation providing quick access to service information. Part No. TZS7EZ006, TZS7EZ005, TZS8EZ001 & TZS9EZ001

1. Service Manuals

2. Instruction Books

3. Technical Information

· TASMIN (Technically Advanced System for Multimedia Interactive Notes) As well as providing a first step towards more interactive training this product also achieves quick access to Technical Information.

WAVEFORM PATTERN TABLE

CONDITIONS: CONTRAST...MAX, BRIGHTNESS...MID, COLOUR...MID, SHARPNESS...MID

ALIGNMENT SETTINGS

(The figures below are nominal and used for representative purposes only.)

1. Set the Bass to maximum position, set the Treble to minimum position, set the Volume to minimum then press the down button (-/v) on the customer controls at the front of the TV and at the same time press the INDEX button on the remote control, this will place the TV into the Service Mode 1.

2. Press the RED / GREEN buttons to step up / down through the functions.

3. Press the YELLOW / BLUE buttons to alter the function values.

4. Press the TV/AV button after each adjustment has been made to store the required values.

5. To exit the Service Mode, press the "N" button.

Alignment Function Settings / Special features

Horizontal Position

Vertical Position

Horizontal Amplitude

Vert. Amplitude

EW-amplitude

Trapezium-comp

Vertical Linearity

Vertical Symmetry

DVCO

Cut-off DC

Ug2 Test

H-Pos

025

V-Pos

008

H-Amp

004

V-Amp

060

EW-Amp 1

- 029

EW-Amp 2

005

Trapez 1

- 002

Trapez 2

003

V-Lin

- 018

V-Sym

- 004

DVCO

021

Cut-off

0204

Ug2

130

O.K.

Optimum setting.

Receive a PAL Colour Bar Pattern. For DVCO alignment press "Blue" button, wait until the colours are changing slowly and press "TV/AV".

To adjust Cutoff connect an oscilloscope to the Blue cathode. Adjust “cutoff” value using the “Yellow” and “Blue” buttons until the black level is 160V +5V/-0V, press “TV/AV” to store the value. Remove the oscilloscope. Select Ug2 adjustment and adjust the screen VR until the display shows “O.K.”

Black Level

160V+5V/-0V

GND

Highlight

Lowlight

Sub-Brightness

High 0902 0777 0864 Low 0117 0132 0112

Sub-Brightness

003

Optimum setting.

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