| Make | Model | Problem | Solution | Date |
| | | |
| Found: 55
|
| Akura | CX25 etc | Int no pic, one col etc | Dry joints on earth links on component side of pcb - remove ics to repair | 14-09-04 |
| Finlandia | C/D51JZ5/E Salora N | Dead - chopper 2SK1118 s/c (BUZ90AF or BUZ91AF can be used in lieu) | CN10(270pf2kv) and check/change CN01,CN03 check high value res & resolder transformer pins | 14-09-04 |
|
|
| Finlandia | CD51JZ5E | No sound | DN09 s/c and RN29 o/c (27v supply to audio chip). | 14-09-04 |
| Goodmans | 2170/2175 etc | LOPTr Q210 has short life - High EHT & Focus volts | C264 47µ 160v (C434 in TV14RC) | 14-09-04 |
| JVC | 7255EE-A | Won't come out of standby. | PS, near AN5900 change 2caps 220uF 3caps 10uF and 1cap 47uF. | 14-09-04 |
| JVC | 7255EE-A | Won't come out of standby. | PS, near AN5900 change 2caps 220uF 3caps 10uF and 1cap 47uF. | 14-09-04 |
| JVC | AV24WT5EKS JK11 | Blank white raster at start up - reverts to st/by aft 5 secs | The +5v supply low - replace 5v reg IC954 BA05T - used L7805CP in lieu | 14-09-04 |
| jvc | av32r25ek | a vertical line in the middle of the screen that i cant get rid of any idea how to solve the problem?
| Try to identify the vertical deflection yoke. Test continuity(to be 10-15 ohms). Identify coupling capacitor and verify that it's not open. If all are ok, identify the actual deflection i.c. or circuit and confirm with 'scope that the drive signal from the jungle i.c is present and correct. If not present, confirm that the jungle i.c is getting all the necessary supplies from both the flyback transformer and from the power supply unit. If all are ok, replace the vertical i.c. | 17-02-06 |
| JVC | AV32R25EK(S) | Sound very dist on NICAM - ok on mono | R chan o/p from MSP chip (Nicam processor) IC631(pin 31) 6v p-p & badly clipped - L chan ok - chip faulty | 14-09-04 |
| JVC | C2155EM | Slow start up | C13 & 33 220µ in st/by cct low cap | 14-09-04 |
| Mitsubishi | CT21M5 EE4 | Dead - blowing SOC2000 cct prot | Microprocessor s/c +5v pin to chassis | 14-09-04 |
| Mitsubishi | CT21M5 EE4 | No Txt or auto tune/store | eset options in eeprom from service mode | 14-09-04 |
| Philips | 32PW9763/05 MD2.25E | St/by only with led flashing | Main micro on control board pin 53 stuck hi due to D6227 zener 3v3 sm o/c. For more info see TV mag Nov 2001 | 14-09-04 |
| Philips | MD2.25E | Codenumber information | Codenumber information
----------------------
Long cable SSP <> CRT panel: 4822 320 11291.
Set extention cables: 4822 310 11188.
The extention cables are different from MD2.22E because use of other
connectors.
| 14-09-04 |
| Philips | MD2.25E | Correction to position 21 of styling 220 | Correction to position 21 of styling 220 of Product Survey 1999-3 (3122
785 10300
The code numbers mentioned for the aluminium columns at position 21 of
styling 220 are not correct. The correct code numbers must be:
21 4822 466 12216 Aluminium colum | 14-09-04 |
| Philips | MD2.25E | Crackling noise coming from the picture tube | Crackling noise coming from the picture tube during light/dark changes of the picture contents.
Mount bleeder (4822 310 11113) between LOT and picture tube.
If problem still exist Anti Crackling Coating (ACC) can be applied.
The code number for this AC | 14-09-04 |
| Philips | MD2.25E | Curtain effect just after a white vertical line (ringing phenomenon) | To reduce the ringing phenomenon change the following positions on the Small Signal Panel:
Position 4508 into 1k (4822 051 10102)
Position 3537 into 1k (5322 117 12487)
Position 3538 into 1k (5322 117 12487)
Position 3565 into 1k (4822 051 10102)
Po | 14-09-04 |
| Philips | MD2.25E | E/W distortion and then switching to standby | Check and replace if necessary position 7480 on the Large Signal Panel
with IRF620FI (4822 130 63546).
REMARKS :
Introduced in production (25" and 29") in week 9912.
IRIS symptom code: 233A
| 14-09-04 |
| Philips | MD2.25E | Influence from wireless dolby on channel 3 | Cause:
The wireless dolby transmitter influences the 55.25 MHz on channel 3.
The local oscillator from the tuner interferes with the wireless dolby
transmitter frequency and this results in a cross pattern on channel 3
(55.25 MHz).
Solution:
- Add on pos | 14-09-04 |
| Philips | MD2.25E | No sound from left, right, centre and subwoofer speakers | Check on audio supply panel (AB, page 39)
7302, BU508AF, 4822 130 61265
3300, 6E8 5W, 4822 117 12681
If one or both are defective also check production code on transformer
5305.
If production code on 5305 is between or equal to OP9802 and OP9824
then al | 14-09-04 |
| Philips | MD2.25E | Noise (humming or low frequency whistle) coming from the picture tube | Mount bleeder (4822 310 11113) between LOT and picture tube.
If problem still exist Anti Crackling Coating (ACC) can be applied.
The code number for this ACC is 4822 390 10166.
The ACC is supplied with complete instructions how to apply.
REMARKS | 14-09-04 |
| Philips | MD2.25E 32PW9543/05 | Poor definition | Tr7140 BD140 on crt base s/c | 14-09-04 |
|
|
| Salora | 21S5EE Euromono2 | No start up - all psu volts present & LED lights | OC44 (1000uF 16V), a good resorder on line drive circuit & 5C34 (470uF 16V) - 5C36 (220uF 35V) replaced | 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 | C25EG25ND EB2A | Loud hum when heated & low gain | dry joint on a black insulated wire link that runs from the secondary side of the chopper transformer to one of the regulator chips in the centre of the PCB; check tuner earths for low gain | 14-09-04 |
| Sanyo | C25EG65NB | No HT adj | R644 68k | 14-09-04 |
| Sanyo | C25EG65NB 25DN1 | St/by only - LED goes out when sw on | R620/621 120k hi res or o/c | 14-09-04 |
| Sanyo | C25EG95 | Patterning | C211 0µ01 had not been fitted | 14-09-04 |
| Sanyo | CBP2145 E2 | Arcing noise and flashing pic for first 10 mins or line tearing on high brightness scenes | C364 100µ in 12v supply | 14-09-04 |
| Sanyo | CBP2145 E2 | Field - partial collapse, no sound & shaky pic | C346 & C398 100µ 25v in psu | 14-09-04 |