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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair
Make
Model
Problem
Solution
Date
Found: 17
Akai
SN71B6
Blank raster at sw on sound ok - pic slowly comes
CRT low emission - reactivated
14-09-04
Akai
SN71B6
No raster, sound ok - if A1 advanced strange rainbow effect
Replace TDA8172 IC NS10 low volts pin 2 & RK53 3R3
14-09-04
Akai
SN71B6 TV2851
No pic - sound/EHT present - Field blanked
RK53 3R fusible pin 3 LOPTx
14-09-04
Barlows
CB672
N/S pincushion error
chech 4 trs on pincush pcb & C6,10,12 and L1 (24R in cct)
14-09-04
Ferguson
ICC8 B68N
Dead - psu starts for about 5 secs
Line dr tr BSR51 TL17 faulty - used BC879 in lieu
14-09-04
Ferguson
ICC8 B68N
Streaky pic with line doubling effect
Replace small elects in IF can
14-09-04
Ferguson
ICC8 B68N
Trips off into prot mode at sw on
FOP chip TDA8178FS s/c - nla use kit of STV9379F, 2v1 zener & 3k9 resistor but fit a 3v9 zener to avoid non lin band across bottom of screen
14-09-04
JMB
JMB66W 11AK19Pro
Dead - LED lit green but no line drive
pin 40 TDA8844 s/c. There is an internal diode between pin 40 & ground that goes leaky, replace the IC or burn diode o/c by applying 5V between pin 40 & ground from ext psu
14-09-04
Samsung
CB6833W
Dead PSU
C808 100µ 25v
14-09-04
Sanyo
28DN5 EB6
Dead
Chopper Tr 2SC4429 s/c - no other FF but suggest change opto & Ref zeners D615/D645
14-09-04
Sanyo
32WN5B EB6A
Reverts to st/by after briefly coming on at sw on during which HT ok at 145v
Pin 19 IC801 prot I/p low (should be hi); 9v supply from IC642 low due to its I/p low 7v - Dry joint C640
14-09-04
Sanyo
CE25DN5 (EB6a Chassis)
To enter option mode
hold the F/OK button on the r/c and press the P -(down) on the tv. Highlight the desired option using the P +/_ button. Vol +/- to change option selected. To exit press the recall button.
14-09-04
Sanyo
CE28WN4 EB6A
Excess width & no E/W after LOPTx replacement
D469, C463 (10nF 50V) and Q462 (used a 2SD1207),C465 (33nF 50V) and D463 both s/c
14-09-04
Sanyo
CE28WN5 EB6-A
Sound int
check dry joints IC801 main micro sm
14-09-04
Sanyo
CE32WN4 EB6-A
Dead apart from orange LED lit
R621 120k in psu pri o/c
14-09-04
Sanyo
EB6 A28
Service mode entering
press green txt on R/C + hold chan- button on front of tv then in normal mode press prog- button on R/C until field coll. Th n adjust with 1=+,2=- keys red; 4+=.5+- key green;7=+.8+- key blue
14-09-04
Sanyo
EB6-A28 CE28WN4-B-01
Service mode access
Push green fastext key while pushing prog down key on front of set. To adjust geometry make sure pic size is set to "Full" before starting, select "Wide" under options & select parameter using prog + & - adj with vol + & - and switch off to store. Mod kit available from SEME for this fault
14-09-04
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