| Make | Model | Problem | Solution | Date |
| | | |
| Found: 442
|
| Decca | A | St/by light goes out but set does not come on | LM317 12v reg dry joints | 14-09-04 |
| Decca | A Series | Dead | R802 R803 ( 15K ) | 14-09-04 |
| Decca | A Series | Dead with squeal | Dry joints R808 ww resistor | 14-09-04 |
| Decca | A Series | No remote operation | IR Rx faulty | 14-09-04 |
| Decca | A Series | Varying HT | Dry joints R808 ww resistor | 14-09-04 |
| Decca | B | dead | Pin 7 IC801 low D807 1N4148 u/s | 14-09-04 |
| Decca | B | No line or field sync - video at pin 5 TDA2579A TB Gen IC401 | IC703 EEPROM crashed due to possible arcing around spark gap - reprog - replacement unnec | 14-09-04 |
| Decca | B | dead with st/by led flashing | D810 BY399 leaky - feedback cct assoc with chopper FET Q801 | 14-09-04 |
| Decca | B Series | Line whistle - mod reqd | Add 220pf cap to pin 5 & pin 6 of opto IC802 in psu | 14-09-04 |
| Decca | B Series | Loses register 7 (line osc free run) | Dry joints 27Mhz Xtal on Txt pcb | 14-09-04 |
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| Decca | B Series | To enter electronic screwdriver settings | Move jumper link by proc to other posn. No. in lh of screen is parameter & can be stepped thro' in Hex from 00 to 12 using "3" button (up) & "2" button (down). Parameters changed by using "Balance left & right" | 14-09-04 |
| Decca | C Series | childlock on | sw on tv whilst holding in 'P+' button on front | 14-09-04 |
| Decca | C Series | Cuts out on high brightness scenes | HT volts drops in sympathy - CE803 220µ 16v ( supply to TDA4605) | 14-09-04 |
| Decca | C Series | Field collapse | dry joint I402 | 14-09-04 |
| Decca | C Series | int trip - once or twice a day | worse when heated - - TDA4605 heat sensitive - u/s | 14-09-04 |
| Decca | C Series | Line down pic when cold (folded scan) | R413 18R ?w hi res - check HT correct -115v 14/20"; 109.5v 15/21" | 14-09-04 |
| Decca | C Series | No R/C operation | No o/p from r/c chip IC750 Replace TFMS4360N with TFMS5360 | 14-09-04 |
| Decca | C Series | St/by LED on - otherwise dead | Dry joint on end pin SCART skt depriving line feed to dr tfmr | 14-09-04 |
| Decca | C Series | st/by only | HT (B+) present - on/off sw perm made - was faulty | 14-09-04 |
| Decca | C Series | Stuck on Chan 1 & no analogue control (Child Lock) | Hold "Prog +" whilst switching on | 14-09-04 |
| Decca | CV9371 | Dead - F802 o/c | BU426A chopper s/c; R808 150k hi res; C814 1µ o/c & chech TDA4600 | 14-09-04 |
| Decca | D | green pic - loss of B drive | R922 100k feedback/bias could affect other cols (R932/912) | 14-09-04 |
| Decca | D | Locked on 1 chan & vol at max | EEPROM corruption - to reset factory values s/c pins 1 & 2 PC701 near µ (whilst tv is on) & press any button on front panel. Tv will go to st/by allowing adjustments to be made next time switched on | 14-09-04 |
| Decca | D | No pic short squeal at sw on | R427 22R .5w in line drive | 14-09-04 |
| Decca | D Series | All red. | R012 100k on CRT base. | 14-09-04 |
| Decca | D Series | Bright Green Raster | Green cathode volts low - Tr931 BC547 o/c & R932 100k hi res | 14-09-04 |
| Decca | D Series | field collapse | R504 3M3 faulty - feeds ramp to pin 42 IC503 TDA8362 | 14-09-04 |
| Decca | D Series | Lack of height | Check 33v supply IC001 TAA550 & feed res R015/6 6k8 & R504 3M3 | 14-09-04 |
| Decca | D Series | Line foldover with crt heaters dimming | R427 line feed res high res | 14-09-04 |
| Decca | D Series | No Field Scan | If IC401 & R414 are OK check R504 3M3 ohm | 14-09-04 |