| Make | Model | Problem | Solution | Date |
| | | |
| Found: 438
|
| Samsung | CI5937AN | Dead except for squeal from psu | All sec supplies low - 32v line has a low res reading - audio o/p chip TDA2161 s/c at supply pin 7 | 14-09-04 |
| Samsung | CI5937AN | SET WHINES NO PICTURE OR SOUND | D808 170v OVERVOLTS ZENER SC PC801 OPTOCOUPLER DRY JOINTED | 14-09-04 |
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| Samsung | CI5937AN | St/by only | Micro not giving power on signal. Front panel faulty (works by R/C when dis'd) - NLA | 14-09-04 |
| Samsung | CI5937AN Z68 | Pic slow to appear with lack of width & jagged verts | Also arcing noise from LOPTx - HT smoother C828 470µ 250v faulty | 14-09-04 |
| Samsung | CI593CN | Various inc vol varies, chan counts up/down | Front controls varying in resistance | 14-09-04 |
| Samsung | CI593CN S51A | Dead | C807 2n2 800v burnt, IC801 pt no 1203-001482 faulty | 14-09-04 |
| Samsung | CI593CN S51A | Dead with LED lit green - no line drive | C407 1nF 2kv leaky (next to LOPTr heatsink) | 14-09-04 |
| Samsung | CI593CN SCT12B | No pic - sound ok | Replace IC201 TDA8375/N3 | 14-09-04 |
| Samsung | CI593CN SCT12B | Stuck in standby, 5V supply to Micro IC901 pin 34 is low | Replace Micro Z8933212PSC-R3593 , part number AA13-30018K ( 30UKP+VAT ) | 14-09-04 |
| Samsung | CI593CN3X S51A | No sound/pic - snowy pic/sound available thro' scart o/p | IC902 24W16 EEPROM faulty. Samsung's replacement 24C16 is set on CK tuning system & needs resetting to CI (UK version) Enter serv mode/reset mode to do this or no sound will be present | 14-09-04 |
| Samsung | CI593CN3X S51A | Service mode access | Press St/by, display, menu, mute & power on in sequence, then go to st/by to leave serv mode | 14-09-04 |
| Samsung | CI5944 | Field problems | Mod kit available from CHS (MODKIT10) incs mod sheet | 14-09-04 |
| Samsung | CI5944 etc | Field collapse - partial or total | TDA8350Q IC301 - Replace IC301 (version 6 supplied with kit)
Check R307,R409,& R412
Fit the following additional protection components:
ADD: Diode type MA2560 from V1 to ground. (VI is the scan coil connection) ADD 470nf capacitor in parallel with this diode. ADD 1R2 0.5 w resistor in series with L301. Change L301 to 10uH.
ADD 1N4004/7 diode, anode to pin 9 of IC, cathode to R307, (Supply side, not IC side pin 8) ADD Diode type MTZ15C cathode to pin 3 anode to ground.(Across C303) | 14-09-04 |
| Samsung | CI5944 SCT12B | Field & E/W problems | IC301 fails - SEME supply kit RK12 | 14-09-04 |
| Samsung | CI5955N | Field collapse | Replaced TDA8350Q & R412 0R27 | 14-09-04 |
| Samsung | CI6229 U88MT1 | PARTIAL OR COMPLETE FIELD COLLAPSE , REPLACE IC301 | ADD 1N4148 FROM PIN 9 IC301 TO PIN 3 IC 301 ANODE TO PIN 3 ADD 1N4148 FROM PIN 3 IC301 , ANODE TO GROUND ADD 12pf CERAMIC FR | 14-09-04 |
| Samsung | CI6229T | Field collapse - repeat failure of FOP chip | Mod by removing link PJ28 and in it's place fit a 10uH choke. Also add a 470nF 100v capacitor from pin 5 of ic301
to earth. PJ28 is the 26volt supply to the field ic and this rail suffer's from spike's.! | 14-09-04 |
| SAMSUNG | CI6229T | INT DEAD OR DOES NOT SWITCH ON FROM COLD | REPLACE C806 100MFD25V | 14-09-04 |
| Samsung | CI6229T P72 | No pic unless A1 advanced - looks like failing mono tube | C416 2µ2 250v HT decoupler | 14-09-04 |
| Samsung | CI6230 | Dead | C416 2µ2 250v blasted - check D814 s/c RU4AM - BYW95c does | 14-09-04 |
| Samsung | CI6230 | Dim heaters, non lin field, hum bar on cols - all line derived supplies low | C560 4.7uf @ 250v & C590 2.2uf @250v on crt base | 14-09-04 |
| Samsung | CI6230 | Field non lin and short pic | TDA3654 | 14-09-04 |
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| Samsung | CI6230 | No sound - ok via scart | Audio in at TDA8415 IC601 ok but no o/p - no osc due to 10Mhz Xtal being u/s | 14-09-04 |
| Samsung | CI6230 | St/by only | C808 & 806 100µ 25v | 14-09-04 |
| Samsung | CI6230 U88MT1 | ODD VIDEO - NO COLOUR | CHECK 12v SUPPLY FROM REG. | 14-09-04 |
| Samsung | CI6230 U88MT1 | PARTIAL OR COMPLETE FIELD COLLAPSE , REPLACE IC301 | ADD 1N4148 FROM PIN 9 IC301 TO PIN 3 IC 301 ANODE TO PIN 3 ADD 1N4148 FROM PIN 3 IC301 , ANODE TO GROUND ADD 12pf CERAMIC FR | 14-09-04 |
| Samsung | CI6230 U88MT1 | This set was dead , with just a highpitched squeal | C416 ( 2.2 , uF , 250V ) was short-circuit. It decouples the supply to the line output stage. | 14-09-04 |
| Samsung | CI6230 UM88MT-1 | Filed collapse | When replacing TDA3654 fop chip also replace wire link PJ28 (from pin 5 chip) with 10µH inductor pt no 2701-001040 & fit 470nf polyester cap pt no 2305-000407 between pins 4 & 5 TDA3654 as close as poss to chip to prevent reoccurence | 14-09-04 |
| Samsung | CI6230WN | Dead with squeal | C416 2µ2 250v in LOP supply | 14-09-04 |
| Samsung | CI6230WN | Field chip has short life | fit a 470n cap from pin 5 of the chip to deck
and replace PJ28 with a 10 mH choke, check elect caps, give no guarantee and hope! | 14-09-04 |