Read Sharp 66GS-62 (serv.man19) Technical Bulletin online
CTV 2004 03 03
Month of Issue: 22
nd
July 2004
Classification:
White
TELEVISION TECHNICAL BULLETIN
Page 3 of 4
Sharp Electronics (UK) Limited
Reference AvW 10 03 2004 - 3
Revision - 3
White – Carry out as required
Yellow – Carry out as required and whenever the unit comes in for service
Red – Carry out on all units
Changes to the circuit during production
A number of changes were made to the east/west output circuit during production as follows:
1. A larger heatsink was used for Q601 and Q602 to help reduce the operating temperature of these devices. The
original heatsink is 65mm in height; the new one is 110mm in height. If the heatsink has already been changed
for the larger type, it is not necessary to change it again. See the picture relating to the new Q602 for new
heatsink.
2. Q602 was changed for a more powerful device.
3. The inner pincushion correction transistor, Q610 was up rated from a SMD device to a wire ended type. The
new transistor is now mounted on the component side of the PWB. If a set comes into the workshop, and this
resistor has not been changed, it is advisable to do so, using the part number for Q610 given below:
Original Q610 Transistor
New Q610 Transistor
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
-
Heatsink
PRDARA018WJFW
AC
C601
Capacitor, 10nF 1.6kV
RC-FZ0158BMZZ
AF
C602
Capacitor, 4.7nF 1.5kV
RC-FZ0148BMZZ
AD
C619
Capacitor, 100nF 250V
RC-FZ0198BMZZ
AG
C624
Capacitor, 220nF 400V
RC-FZ7224BMNJ
AE
R610
SMD Resistor, 68
Ω
VRS-TV1JD680J
AA
Q601
Transistor, BUH515D
RH-TX0226BMZZ
AK
Q602
Transistor, 2SK2843
RH-TX0236BMZZ
AE
Q603
SMD Transistor, 2SC2412
VS2SC2412KQ-1
AA
Q604
SMD Transistor, 2SC2412
VS2SC2412KQ-1
AA
Q608
SMD Transistor, 2SA1037
VS2SA1037KQ-1
AA
Q610
Transistor, IFR640A
RH-TX0246BMZZ
AG
Note that the list of components given above IS NOT a parts list to cure all geometry problems in this chassis. It has
been compiled to show all the part numbers for items refered to in this document. If the parts noted in the text are not
faulty, carry out fault finding procedures to locate the problematic part.
Click on the first or last page to see other 66GS-62 (serv.man19) service manuals if exist.