| Make | Model | Problem | Solution | Date |
| | | |
| Found: 139
|
| Aiwa | VX9142K | Dead | R516 270k in psu o/c | 14-09-04 |
| Alba | 4859 11AK19 | No line drive at sw on (150v HT to LOPTr) | Dis'd D814/815 (+14 & -14v audio o/p ic supply diodes). Replacing TDA2615 aud o/p chip resulted in bright white raster & flickering LED; R914 47R 200v feed to IC901 TDA6107Q on crt base o/c & IC s/c | 14-09-04 |
| Alba | CTV3409 11AK20S | LED stays green (pic ok) | Q803 BC547 st/by sw tr leaky | 14-09-04 |
| Bush | 2914 | No chan store | No 33v to memory chip IV02 - D405 s/c & 47R feed res o/c | 14-09-04 |
| Bush | 2914 | Red excess | R919 680k in RGB o/p o/c | 14-09-04 |
| Bush | 2914 | Squealing from chopper tfmr - sound/pic ok | Check sync winding on lopt for wrongly fitted after loptx change | 14-09-04 |
| Crown | CRT5912RT | Dead - LOPTr faulty | replacement ran hot - 10µ 50v cap in base faulty | 14-09-04 |
| Ferguson | 1690/91 | Blank raster. | Change transistors VT1 to VT7 Try VT3 1st if not all. | 14-09-04 |
| Ferguson | 1690/91 | Frame collapse. | Diode at back W13 ( can use a BY206 ) | 14-09-04 |
| Ferguson | M6373GCT TX91G | No or intermittent TeleText | Check for dry joints on IX02 Reg IC on the small Text pcb. | 14-09-04 |
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| Ferguson | T49F/TX91 | HEIGHT DECREASES AFTER 1 HOUR | REPLACE CF06 100MFD50V | 14-09-04 |
| Ferguson | TX91 | "P" displayed (in prod mode) | To remove - a) switch tv into standby mode with RCU
b) switch tv OFF with the tv mains switch
c) hold and depress both the vol + and vol - keys ( on the front panel )
c) switch on tv with the mains switch
d) allow picture to appear and then release front panel keys | 14-09-04 |
| Ferguson | TX91 | Accessing service mode | 1.1 With the RCU switch the TV set into the "Standby" mode.
1.2 Switch "OFF" the TV set by mains supply switch (wait until LED isdark).
1.3 Whilst depressing the RCU "Blue ( VT)" button, switch "On" Ihe TV set using the mains supply switch.
1.4 Release and press once again Ihe RCU "Blue (VT) " button, the "Set-Up" menu should be displayed.
Important . The Service Mode cannot be entered if any equipment is connected to the Scart socket, i e. pin 8 switching voltage present.
2. Function or Page Selection (GEOM)
2.1 With the RCU Volume "+" and "-" buttons, highlight the menu containing the function to be aligned.
2.2 Press the RCU "Blue (VT)" button to highlight the function to be aligned, or selected the page (1 or 2).
3. Switching between Service and TV modes
3. 1 Whilst in The Service mode, normal TV controls are disabled, to enable these controls whilst in The Service Mode (i.e.. for channel changing etc.) press the "TV" button on the RCU. To return to the Service Mode, press the "Blue (VT)" button on the RCU 4. Alignment and storing new function Value.
4.1 The current value of the selected function is displayed in a hexadecimal form to The right of the function name. This value is adjusted by means of the RCU Volume "+" and "-" buttons
4.2 To STORE the functions new value highlight MEMO and press The RCU Volume "+" button
4.3 To RESTORE the functions original value, highlight R-STO(RE) and press the RCU Volume "+" button.
4.4 Selection the ROM functions downloads the production software default values, these are not very accurate and should only be used in very special cases.
Whilst in the "Service Mode" ,a long press (more than 3s) of the RCU "|0" button, will reset the TV to the "factory default conditions.
| 14-09-04 |
| Ferguson | TX91 | Burst of EHT at sw on then reverts to st/by with LED flashing | If micro reset pin held low will power up with blank raster - Eeprom IR03 24C04 faulty - empty replacement fitted retune & store | 14-09-04 |
| Ferguson | TX91 | Electronic Screwdriver set up | Sw on ac mains whilst pressing blue txt button then press blue button again.Use Vol+ or - to highlight reqd menu.Press blue txt button to access function. To sw between TV & Serv modes press 'TV'/Blue Txt buttons. To store - highlight memo & press '+' button. To go to factory default press '0' for several secs. Exit set up by pressing 'st/by' | 14-09-04 |
| Ferguson | TX91 | Int switches to AV1 regardless of chan | Dry joints screening plates/tags on IF section? | 14-09-04 |
| Ferguson | TX91 | low sound | BC858C SM tr TV02 | 14-09-04 |
| Ferguson | TX91 | no search or sigs | TF01 sm tr o/c b-c - tuning volts stuck at 30v | 14-09-04 |
| Ferguson | TX91 | No tuning | TH01 sm tr BC847B | 14-09-04 |
| Ferguson | TX91 | Only prog 1 can be selected & no R/C | EEPROM IR03 in a small screening can, 8 pin DIL type
MAL24C04-1. | 14-09-04 |
| Ferguson | TX91 | Snowy raster | TH02 BC858 sm s/c | 14-09-04 |
| Ferguson | TX91 | St/by only - no activity on bus lines | Check for s/c on "test connector" pins on print side of main board | 14-09-04 |
| Ferguson | TX91 | Tripping at 10 cycle intervals | TEA5101 IT01 on crt base - set stops tripping when plug HT01 dis'd | 14-09-04 |
| Ferguson | TX91 | Tuning drift | TH01-04 & the 33V stabilizing diode + repaired tuner unit dry joints earths | 14-09-04 |
| Ferguson | TX91 | Tuning drift | Dry joints on tuner earths | 14-09-04 |
| Ferguson | TX91 | Various int faults - int st/by & out of st/by, height,sound system | TR01 BC848B sm | 14-09-04 |
| Ferguson | TX91 | Variuos inc -ve pic & no sync & no vis | TV01 BC858B sm | 14-09-04 |
| Ferguson | TX91 | Video crushed & poor lum | Replace TV01 BC858B sm - checks ok out of cct | 14-09-04 |
| Ferguson | TX91 | Flashing white lines, pic interference and crackling (OK thro' SCART) | TH03 BC858C band sw tr under tuner area of pcb | 14-09-04 |
| Ferguson | TX91 T14T | St/by only | TDA1771 FOP chip | 14-09-04 |