jvc Repair Tips
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Results 369
Results 369
| Make | Model Ch. | Symptom | Problem Solution | Solution | By: |
|---|---|---|---|---|---|
| JVC | CS2181EKT BYX | Comes on in AV mode - when TV selected all chans tuned to same station | The -30v supply to memory chip on tuning panel falls below -26v. Replace some/all of following: Q956 2SA1015, C959 3µ3 50v, C958 33µ 35v, C016 10µ 16v, C017 10µ 50v sm. | ||
| JVC | CS2181EKT | Tuning int lost on chan change | Replace C958, C959, C16, C17 & check for dry joints | ||
| JVC | CS2181EKT | Off tune at sw on gradually tunes in | CO16 10µ 16v sm in s.select module | ||
| JVC | CS2181EKT | No signals - Ok via scart socket. | IC M54477L in tuner ( NLA ) req new tuner. | ||
| JVC | CS2181EKT | No signals | No o/p from Prescaler chip M54477L in tuner - chip unavailable so replacement tuner reqd at £40 + | ||
| JVC | CS2181EKT | All stations reverted to chan 21 & tunes but no chan store | Check sm elects in station select module for leakage | ||
| JVC | CS2181EK | Low gain esp at higher end of band | AGC pot replaced | ||
| JVC | CS2180EK | Tuning drift | Station select module SBX-M904A(E) | ||
| JVC | CJT21EK | Sound dist aft 15 mins | IC651 AN5265 | ||
| JVC | CJT21EK | Dead - no start up volts pin 4 IC921 | Has lowish res both ways between pin 4 & chassis of STRF6653 - chip faulty | ||
| JVC | C21TX1EK | No sync | Sync signal goes thro Txt panel - X002 6Mhz Xtal was faulty with no osc | ||
| JVC | C21TX1EK | NO SYNC | X002 6Mhz XTAL US ON TEXT PCB | ||
| JVC | C21M3EK Onwa | No sound | IC601 micro has no PWM o/p on vol cont pin - chip faulty | ||
| JVC | C21M3EK Onwa | Field collapse, no sound after replacing C909/911 R419 & 12v Zener | R421 0R68 ½w fusible o/c; D406 s/c - used BY228 | ||
| JVC | C21M3EK | St/by only | HT present 110v. Replaced C909, C911 47µ 50v 105deg, ZD401 12v zener s/c, R419 1R0 2w o/c | ||
| JVC | C21M3EK | Power supply not starting up , may be intermittant. | Replace C910 0.1uF | ||
| JVC | C21M3EK | No vision | CMOS switch IC202 4066B - comp video disappeared through it | ||
| JVC | C21M3EK | No start up - maybe int. | C901 ( 0.1uf ) in startup cct | ||
| JVC | C21M3EK | No sigs or R/C | ZD603 5v6 zener faulty causing 5v to micro low at 4.4v | ||
| JVC | C21M3EK | No R/C operation | X601 xtal wrong freq fitted - should be 4Mhz not 17Mhz |