Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Nikkai | TLG99/141& TLG88/140 | Tripping | Check st/by trfmr for o/c pri | ||
Nikkai | TLG99 TLG99 | No frame. | R104 ( 5ohm , 1W ) | ||
Nikkai | TLG99 TLG99 | Dead. | R109 ( 180ohm , 0.5W ) o/c , Q117 ( 2SC1573A ) npn o/c , Standby Tx pri o/c , R104 | ||
Nikkai | TLG99 | Weak , distorted sound. | R153 was open-circuit there was no bias voltage at the base of Q103 , the lower transistor in the class A push-pull output sta | ||
Nikkai | TLG99 | Sound weak & dist | R153 o/c | ||
Nikkai | TLG99 | No sigs or chan display | EM112 mains start up tfmr o/c pri | ||
Nikkai | TLG99 | No signals/tuning | Tuner VT pin ov tuning volts; R1010 470k on front tuning panel hi res | ||
Nikkai | TLG99 | No col, field foldover & pic shift - all int | Wire link between R218 & pin 27 of IC101 (loss of sandcastle pulse) | ||
Nikkai | TLG99 | Hor dark lines near centre of screen | C116 0µ47 50v | ||
Nikkai | TLG99 | Height reduced | check if 12v supply is low, R104 3R3 1w hi res | ||
Nikkai | TLG99 | Hard to start up from st/by | C101 100µ 400v, Z1 CSB455E, IC3 Upd 1937C | ||
Nikkai | TLG99 | Dead | Check R109 180R ½w o/c, Q117 2SC1573A o/c, rem st/by trfmr, R104 5R 1w hi res | ||
Nikkai | TLG99 | Blank raster without sound | TDA4501 faulty - Pin 19 should be 4.7v. If 0v vid mute is on - check feed res and cap |