BRIDGEND & DISTRICT AMATEUR RADIO CLUB
GW4LNP/GC4LNP
TV
Repair Database
Granada
C/D51J2S/E
No red
crack on end sm res R47 on
crt base
Granada
C14BA2
off burning smell
Q902 leaky
Granada
C51EZ4
Pic int blanks out (no lum)
Txt panel fault - replace
TPU2732
Granada
C51EZ5
White raster with fb lines
Cracks on crt base by
R6/R24
Granada
C51FZ4
Int field collapse
Dry joints on big cap by
field chip
Granada
C51FZ4
No sound or pic with
crackles & flickering/dist raster
120v HT low at 80v - C610 2µ
50v
Granada
C51KS6
No sound, pic shifted to
left with vert bands
VP411 50k "H centre"
pot near LOPTx o/c
Granada
C51ME3
No drive to blue gun of
tube
Feedback/bias resistor R922
100Kohm o/c
Granada
C59FZ2
White lines across top 1/3
of pic when cold
C577 1000µ 25v, C575 1000µ
35v & 220µ 63v (middle of other 2 caps -ref n/k) replaced (tested ok
on esr meter)
Granada
C59GZ5
No txt
MDA2062eeprom - option bit could be set but had no effect
Granada
C59GZ7
No pic - sound ok
When A1 advanced field coll
noticed - IC570 TDA8172 f op chip
Granada
C59GZ7
No picture.
TDA8172 FIELD IC SC
Granada
C59JZ5
Line collapse
Ch10 cap had split open -
use cap rated at 250v
Granada
C66GZA
Field collapse
IC501 TDA3654 fop chip had
failed; C574 100µ 50v low cap
Granada
CD66JS
Field collapse
dry joints scan coil plug
Granada
CD66JS
lines - red at top of
screen
C703 100µ next to TDA8170
field op chip
Granada
D59HZ5
Dead - LOPTr S2000AF s/c
Check CH08 0µ27 & CH07 9n1 & dry joints
Granada
Hita
C66GZA
Field collapse - the
TDA3654 field output chip IC5
C574( 100uF ,50V
)
Granada
CD66KZ6/F
The fault being blows line
output transistor at switch on yet when a dummy load used the voltage is
correct for this set (145V)
Change the line driver
transistor and C507 and C508 220mfd;2.2mfd
Submitted by Allan Lloyd 2/12/2007.
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