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CTV2002 05 02
Month of Issue: Classification:

TELEVISION TECHNICAL BULLETIN
MODELS 56FW53H 76FW54H 66FW53H 66GF63H 76FW53H 66GF64H

May 2002 White Page 1 of 3

66FW54H 76GF64H

REASON

Upgrade of defective opto-coupler .

ACTION

Replace the following parts noting the different pinout of the optocoupler

REF NO IC705 IC703 IC704 IC1703 R724 R750 R711 R1017

Old Part No. RH-FX0106BMZZ* RH-FX0110BMZZ* RH-FX0112BMZZ* *Any of the listed part Nos. may be fitted VRS-TQ2BD271J VRS-TV1JD105J VRS-TV1JD182J VRS-TV1JD122J

New Part No. RH-FX0113BMZZ " " " VRS-TQ2BD221J VRS-TV1JD334J VRS-TV1JD122J VRS-TV1JD102J

PRICE CODE AD AD AD AA AA AA AA

The required parts have been prepared into a kit and can be ordered using the following part number REF NO --DESCRIPTION Parts kit PART NUMBER GF/FWOPTOKIT PRICE CODE AE

Please note This 4 pin device replaces the 6 pin device. Pins 1 and 2 are the same but pins 3 and 4 are the equivalent of pins 4 and 5. This requires that the new opto-coupler is fitted Diagonally. Please see the diagrams on page 2 and 3 to illustrate this.

Sharp Electronics (UK) Limited
Reference JR21052002-1 Revision 1

White ­ Carry out as required Yellow ­ Carry out as required and whenever the unit comes in for service Red ­ Carry out on all units

CTV2002 05 02
Month of Issue: Classification:

TELEVISION TECHNICAL BULLETIN

May 2002 White Page 2 of 3

Please note the positioning of the opto couplers in the case of IC705 (power) above and the data opto couplers (IC703 and IC704)

Sharp Electronics (UK) Limited
Reference JR21052002-1 Revision 1

White ­ Carry out as required Yellow ­ Carry out as required and whenever the unit comes in for service Red ­ Carry out on all units

CTV2002 05 02
Month of Issue: Classification:

TELEVISION TECHNICAL BULLETIN

May 2002 White Page 3 of 3

Please note the positioning in the case of the Dolby Power supply.

Sharp Electronics (UK) Limited
Reference JR21052002-1 Revision 1

White ­ Carry out as required Yellow ­ Carry out as required and whenever the unit comes in for service Red ­ Carry out on all units