V50000007 datasheet(3/63 Pages) TOSHIBA

3 / 63 page

DO NOT CHANGE ANY MODULE UNLESS THE SET IS SWITCH OFF

The mains supply side of the switch mode power supply transformer is live.

Use an isolating transformer.

The receivers fulfill completely the safety requirements.

Safety precautions:

Servicing of this TV should only be carried out by a qualified person.

- Components marked with the warning symbol on the circuit diagram are critical for safety and must only be replaced

with an identical component.

- Power resistor and fusable resistors must be mounted in an identical manner to the original component.

- When servicing this TV, check that the EHT does not exceed 26kV.

TV Set switched off:

Make short-circuit between HV-CRT clip and CRT ground layer.

Short C804 (150mF) before changing IC802 or other components in primary side of SMPS.

Measurements:

Voltage readings and oscilloscope traces are measured under following conditions.

Antenna signal 60dB from colourbar generator. (100% white, 75% colour saturation)

Brightness, contrast, colour set for a normal picture.

Mains supply, 220VAC, 50Hz.

PERI-TV SOCKET

SCART 1 (SC050)

SCART 2 (SC051)

Audio right output 0.5Vrms / 1K

1 Audio right output

0.5Vrms / 1K

Audio right input

0.5Vrms / 10K

2 Audio right input

0.5Vrms / 10K

Audio left output

0.5Vrms / 1K

3 Audio left output

0.5Vrms / 1K

Ground AF

4 Ground AF

Ground Blue

5 Ground Blue

Audio left input

0.5Vrms / 10K

6 Audio left input

0.5Vrms / 10K

Blue input

0.7Vpp / 75ohm

7 Blue input

0.7Vpp / 75ohm

AV switching input 0-12VDC /10K

8 AV switching input

0-12VDC /10K

Ground Green

9 Ground Green

10 -

11 Green input

0.7Vpp / 75ohm

11 -

12 -

13 Ground Red

14 Ground Blanking

15 Red input

0.7Vpp / 75ohm

15 -

16 Blanking input

0-0.4VDC, 1-3VDC / 75ohm

16 -

17 Ground CVS output

18 Ground CVS input

19 CVS output

1Vpp / 75ohm

19 CVS output

1Vpp / 75ohm

20 CVS input

1Vpp / 75ohm

20 CVS input

1Vpp / 75ohm

21 Ground

INTRODUCTION

11Ak41 is a 100Hz flicker free colour television capable of driving 284:3/16:9, 334:3 and 294:3 real flat picture tubes.

The chassis is capable of operation in PAL, SECAM, NTSC (playback) colour standards and multiple transmission standards

as B/G, D/K, I/I, and L/L´.

Sound system output is supplying 12W (10%THD) for left, right and center outputs of 8ohm speakers, and 2 x 7W for surround

outputs of 2 x 4ohm speakers, connected in series.

TV supports the level 1.5 teletext standard. It is possible to decode transmissions including high graphical data.

The chassis is equipped with one full EuroScart, one other SCART for AV input/output, one front-AV input, one back-AV

output, one headphone output, one SVHS input (via SCART and SVHS connector), one VGA input, two external speaker

outputs (left and right), one centre speaker output, and one surround speaker output for two speakers in series.

V50000007 Datasheet(PDF) 3 Page - Toshiba Semiconductor

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