Product specifications

DA100 (50Hz) Chassis – Article for Television Magazine
Preventative Maintenance
Ensure that:
1. The 170V avalanche diode is fitted across C720.
2. C604 is rated at 105C.
3. R713 and R714 are metal film types.
4. R1721 and R1722 (Pro-Logic power supply) are metal film types.
5. On the 66FW53/4H and 76FW53/4H that the two extra capacitors are fitted to the CRT base,
as shown in the diagram below.
6. There are no dry joints in the horizontal output circuitry, especially on C613 and R613.
7. The EPROM fitted is correct for the CRT and circuit combination (see IC information at the start
of this article for more information on this).
Figure 61: CRT Base PWB Modification (66cm and 76cm sets only)
Reference Description Part Number
C1826 Capacitor, 4.7nF 500V VCKYPA2HB472K
C1827 Capacitor, 10nF 250V RC-KZ0029CEZZ
C604 Capacitor, 330µF 10V 105C VCEAGA1AW337M
C720 Capacitor, 100µF 200V RC-EZ0258CEZZ
D735 Avalanche Diode, 170V RH-EX0875BMZZ
R1721 Resistor, 560kΩ 0.5W Metal Film VRC-MA2HG564J
R1722 Resistor, 560kΩ 0.5W Metal Film VRC-MA2HG564J
R713 Resistor, 560kΩ 0.5W Metal Film VRC-MA2HG564J
R714 Resistor, 560kΩ 0.5W Metal Film VRC-MA2HG564J
Page 63 of 80
Sharp Electronics (UK) Limited - March 2003
Revision 2