Toshiba 2573DB, 2873DB Schematic

TOSHIBA 2573 DB

General Information

Also Covers

2873 DB

C7SR Chassis

Matrix

Item See Model Book

Adjustments.............................................................................................. 2577 DB 6

Recommended Safety Parts

Item Part No. Description

A401 23426795 Back Cover (2573) A401 23426393 Back Cover (2873) C801 24082927 PF, 0.22uF, ±20%, AC275V C802 24092457 CD, 2200pF, ±20%, AC400V C803 24092457 CD, 2200pF, ±20%, AC400V C807 24092281 CD, 4700pF, ±20%, AC250V C808 24092281 CD, 4700pF, ±20%, AC250V R833 24005007 MetaI-GIazed Resistor, 8.2M ohm, 1W R890 24019340 PTC Thermistor, 18 ohm, 290V L901 23200275 Coil, Degaussing, TSB-2329BR T461 23236454 Transformer, Flyback, TFB4117AR T803 23217214 Transformer, Converter, TPW3283AR Q826 A8643108 Photo Coupler, TLP621(GR-LF) F801 23144507 Fuse, 3.15A F803 23144502 Fuse, 1.0A S801 23344395 Switch, Power V9O1A 23902891 Socket, CRT, 10P V901 23312721 Picture Tube, A59ECF50X17 C801 24082927 PF, 0.22uF, ±20%, AC275V C802 24092457 CD, 2200pF, ±20%, AC400V C803 24092457 CD, 2200pF, ±20%, AC400V C807 24092281 CD, 4700pF, ±20%, AC25OV C808 24092281 CD, 4700pF, +20%, AC25OV R833 24005007 Metal-Glazed Resistor, 8.2M ohm, 1W R890 24019340 PTC Thermistor, 18 ohm, 290V T461 23236454 Transformer, Flyback, TFB4117AR T803 23217214 Transformer, Converter, TPW3283AR Q826 A8643108 Photo Coupler, TLP621(GR-LF) F801 23144507 Fuse, 3.15A F803 23144502 Fuse, 1.0A S801 23344395 Switch, Power V9O1A 23902891 Socket, CRT, 10P V901 23312720 Picture Tube, A66ECF50X17

Reference data Item Adjustment 2173DB 2573DB 2873DB

RCUT Red Gun Cut Off 40H 40H 40H GCUT Green Gun Cut Off 40H 40H 40H BCUT Blue Gun Cut Off 40H 40H 40H GDRV Green Dive 80H 80H 80H BDRV Blue Drive 80H 80H 80H CNTX Contrast Maximum FFH FFH FFH BRTC Brightness Centre 80H 83H 83H COLC Colour Centre NTSC 00H 00H 00H

(difference between PAL) TNTC Tint Centre 40H 40H 40H COLP Colour Centre PAL 80H 80H 80H COLS Colour Centre SECAM 00H 00H 00H VPSS 60 Hz V-Position 00H - SCNT Y-Sub Contrast 0AH 0AH 0AH HPOS Horizontal Position 05H 07H 07H VPOS Vertical Position 03H 03H 03H HIT Height 40H 40H 40H SHIT Sub Height (16:9) - DDH DDH TEXT TEXT Position - 01H 01H VLIN Vertical Linearity (50Hz) 13 0EH 11H VSC V-S Correction - 0FH 0FH VPS Vertical Picture Shift - 01H 01H VCP Vertical Compensation - 02H 02H WID Width - 21H 0AH PARA Parabola - 42H 33H CNR E-W Corner - 0BH 0BH TRAP Trapazium - 08H 08H HCP Horizontal Compensation - 03H 03H VFC V-F Compensation - 0FH 0FH VLIS 50/60Hz V-linearity difference - FFH FEH SLIN 16:9 sub Vertical Linearity - 00H 00H

(difference) SVSC 16:9 sub V-S Correction - F7H F7H

(difference) SPAR 16:9 sub Parabola - E4H E4H

(difference) SCNR 16:9 E-W Corner Difference - FDH FDH BELL SECAM Bell Fo 01H 01H 01H TRP C-TRAP F0 02H 02H 02H SBY SECAM B-Y Black Level 08H 08H 08H SRY SECAM R-Y Black Level 08H 08H 08H

[DESIGN MODE]

ADJUSTING ITEMS AND DATAS IN THE DESIGN MODE:

Item Name of adjustment Data

2573DB 2873DB Remarks OPT Mode Data Option 1 A9H A9H OPT2 Tuner Selection 00H 00H

Table-3

This area is intentionally left blank.

X-Ray Note

X-Ray Precaution

1. Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To avoid such hazards, the high voltage must not be above the specified limit. The nominal value of the high voltage of this receiver is 29.3 kV (2573) 29.4 kV (2873) at zero beam current (minimum brightness) under a 220-240 V AC (2573 & 2873) power source. The high voltage must not, under any circumstances, exceed 29.9 kV (2573 & 2873). Each time a receiver requires servicing, the high voltage should be checked following the HIGH VOLTAGE CHECK procedure in this manual.

It is recommended that the reading of the high voltage be recorded as a part of the service record. It is important to use an accurate and reliable high voltage meter.

2.The only source of X-RAY RADIATION in this TV receiver is the picture tube. For continued X-RAY RADIATION protection, the replacement tube must be exactly the same type tube as specified in the parts list.

3. Some part in this receiver have special safetyrelated characteristics for X-RAY RADIATION protection. For continued safety, parts replacement should be undertaken only after referring to the PRODUCT SAFETY NOTICE.

+ 3 hidden pages