TV
Repair Database
|
Nokia |
3725 |
weak lum |
replaced txt pcb |
|
Nokia |
5552 |
Dead - shows 2 dashes when switched on |
Flashing green LED when brought out of st/by; will not run on dummy load
unless c-e of T742 are s/c (Follow pin 2 of IC742). (When psu is run on
dummy load it is normal to get no front display & flashing G LED) Fault was
D502 leaky |
|
Nokia |
6354 |
Int crackle & loss of sound on rh chan |
Sig ok pin28 7 29 DACM chip NA10 but not ok at pin 9 TDA2615 NA90. - VA80
BC858B sm was noisy & the cause of both faults |
|
Nokia |
6365 |
Pic takes 20 mins to appear |
Module that supplies G2 volts faulty pt no 57109W (WVE) |
|
Nokia |
20R19 |
INT START UP |
C714 330nf ( GONE HIGH IN VALUE ) S2 - S3 CHASSIS. |
|
Nokia |
25N8C |
Dead |
s/c across Lop tr traced to s/c windings on Loptx pins 3 & 5 |
|
Nokia |
3724 Monoplus |
Tripping |
s/c across U" 12v supply - pin 2 RGB o/p IC TEA5101N/B on crt base s/c |
|
Nokia |
3724UK |
No start up - int |
V0005 11v zener in start up cct supply to TEA2164G |
|
Nokia |
3742A |
Low contrast |
TDA8362 |
|
Nokia |
5354UKSFN |
Crackle on NICAM sound |
MSP2400 sound proc IC & reset eeprom values |
|
Nokia |
6320 UK Core 1 |
INT NO PIC OR FRONT DISPLAY |
CHANGE 10mfd 160v |
|
Nokia |
6332UK |
Dead - tripping |
S2000AF s/c - check for dry joints at 5C102 |
|
Nokia |
6355UK |
Parts of field blanked giving venetian blind effect |
RS11 220R |
|
Nokia |
6364UKSFN |
E-W fault symptom |
C515 2µ2 |
|
Nokia |
6630 |
LINE DOWN RH SIDE |
CHECK 470 mfd LT LINE |
|
Nokia |
7176 Classic |
St/by only with led pulsing |
No line drive; VK22 BC337 sm u/s |
|
Nokia |
7177 Classic |
Distorted sound left chan |
VA81 BC858B sm |
|
Nokia |
7180 |
NOISE FROM LH SPEAKER |
IC3201 APU2470 US ON AUDIO/SCART PCB |
|
Nokia |
7180 DIGI |
NO AUDIO JUST LOUD BUZZ AS ON COMPUTER TAPE |
IC3101 ADC2310 US |
|
Nokia |
7180 DIGI |
NOISE FROM LH SPEAKER |
IC3201 APU2470 US ON AUDIO/SCART PCB |
|
Nokia |
Comp.D2 FST |
Loud popping & pic size varies in sympathy |
Renewed C700, 707, 711, 752 in PSU & resolder joints |
|
Nokia |
Compact DE |
Excess width - E/W ok |
Dry joint C513 0.18µ scan coupling cap |
|
Nokia |
Compe De 110º FST |
Pic shifted to left |
Pulse cap C516 behind LOPTx |
|
Nokia |
D-E FST |
Dead - No HT o/p from psu when connected |
IC401 fop chip TDA3654 s/c 26v supply |
|
Nokia |
Euro Stereo |
Dead - EHT present |
I2C bus failure - check 5v supply & SCL, SDA lines. If low remove NICAM pcb.
If then works sus MSP2400 chip |
|
Nokia |
Euro Stereo 2 |
Dead - 2 dashes in led display only |
T507, BC337 leaky, off of pin 6 of the HOR.PULSE TRANSFORMER |
|
Nokia |
Euromono |
Dead - EHT starts to rise at sw on, no led |
OC44 1000µ16v in 8v supply |
|
Nokia |
Eurostereo |
Ragged verts & screaming chopper tfmr |
C787 10µ 50v |
|
Nokia |
EuroStereo2 |
Int reverts to st/by / width / line freq / lop tr failure |
Line dr tr T507 BC337-25 faulty (may check ok) & replace C507 220µ decoupler
for line dr tfmr |
|
Nokia |
FS Chassis |
E/W dist |
Ck27 390nF (value varies with model) scan coupling cap o/c |
|
Nokia |
Monoplus |
Dead - HT comes up briefly at sw on |
C033 10µ 160v hi esr |
|
Nokia |
MonoPlus |
Dead - s/c VO37 c-e to disable trip got psu running without sound/pic |
Micro not running - with 1.5v on reset pin 33. VF10 BC858C sm was faulty tho
checked ok |
|
Nokia |
Monoplus 5864 |
Lack of width with HT set correct at 109v |
Coil LK11 in series with scan coils shorted turns |
|
Nokia |
Monoplus 5864 |
To set HT & other menu driven functs |
s/c test point XF01 to chassis, enter service mode by pressing Mute, M & TV
on handset. Move up/down menus, use vol up/down to change settings. Measure
HT at test point X003 |
|
Nokia |
MP37H1 |
No line drive |
Line dr transistor BC327; also change VK51 BC848, VK52 BC858 sm |
|
Nokia |
MP37H1 |
No pic or sound - osg ok |
VR08 BC858 sm on txt pcb |
|
Nokia |
N |
Pic size varies & E/W dist |
Ch04 27nf o/c |
|
Nokia |
N series |
E-W dist with TH03 BD241D running hot |
CH09 150nF o/c |
|
Nokia |
SFN Chassis |
Field non lin with black bands |
RS11 220R across field scan coils o/c |
|
Nokia |
SP71D1 |
No pic or line drive, sound ok |
hairline fracture of solder joint on sm resistor RK21 |
|
Nokia |
SP71K1 |
Noisy PSU & int trip |
V071 sm (near middle of pcb) - used BC858B |
|
Nokia |
SP71L1 |
Black vert line down rh side of pic |
CK53 120nf in blanking cct |
|
Nokia |
ST37H1 |
Field collapse |
LT supply to DD01 low - being dragged down by faulty tuner |
|
Nokia |
ST51D2 |
Dead - primary supplies start up then trip on/off |
Sec supplies only half correct value. Diode V035 BA157 u/s |
|
Nokia |
Stereo plus |
Int line tearing/jumping |
Pic moves to right as set warms up ; VK16 BC858 sm was int |
|
Nokia |
Stereo plus |
Reverts to st/by aft few mins |
V071 BC858B sm in psu control |
|
Nokia |
5156 Stereo Plus |
No sound or just faint noise |
Dis pins 7 & 9 at Nicam module. If sound returns VA60 BC857 & VA61 BC847 are
sus (mute trs ) |
|
Nokia |
5524UK FX |
Dead then Slow start up from cold |
CO33 10µ 160v HT reservoir cap |
|
Nokia |
6332 Euromono 110' Chassis |
Random thick black spots in picture, varying in shape and size according to
picture contrast and brightness. |
Replace SMD transistor 4T06 (BC858) next to U4647 chip. |
|
Nokia |
6332 Euromono 110' Chassis |
Random thick black spots in picture, varying in shape and size according to
picture contrast and brightness. |
Replace SMD transistor 4T06 (BC858) next to U4647 chip. |
|
Nokia |
6364UK SFN |
Dead - lop tr S2000AF s/c |
dry joints tuning caps next to it |
|
Nokia |
7177 classic |
Goes to st/by after 2 - 3 mins |
VO71 BC858C sm in psu (was same fault on dummy load) |
|
Nokia |
FS71E1 |
Dead |
Blue Cap 0µ39 250v in line stage bulging |
|
Nokia |
Stereo Plus |
2" band of line at centre of screen |
TDA8350Q field/EW chip NS10 |
|
Nokia |
Stereo Plus |
Field top foldover |
RK68 10R 42v supply to pin 8 of FOP chip hi res |
