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USSR GIALA 406.
Type: 
(DJVU)
(DJVU)Size
26.5 KB
26.5 KB
Page
1
1
Category
AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
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USSR GIALA 406. 406
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Relevant AUDIO forum topics:
Hi All,
Does anyone have any experience of working on this radio, its the small Grundig with a leather case designed by F.A. Porsche.
I have recently repaired one with corroded battery contacts which had obviously not worked for many years.
Its now working perfectly on FM, but MW and SW1 and SW2 have no reception, just noise.
If I leave the radio connected to a 5v power supply for many hours it does actually get some reception on AM, but its not consistent. I'm thinking the fault is somewhere in the 'front end', oscillator stage perhaps.
I have checked the AM coils and wave selector switch are OK and everything is visually in excellent condition.
Reading various reviews on this radio confirms they were sold very cheaply in the USA and many customers have complained there is little or no sensitivity on AM, whilst others say it works perfectly. This makes me wonder if there is a common fault on these which someone may know, before I start with my test equipment to try to find the problem...
Any advice would be much appreciated!
Does anyone have any experience of working on this radio, its the small Grundig with a leather case designed by F.A. Porsche.
I have recently repaired one with corroded battery contacts which had obviously not worked for many years.
Its now working perfectly on FM, but MW and SW1 and SW2 have no reception, just noise.
If I leave the radio connected to a 5v power supply for many hours it does actually get some reception on AM, but its not consistent. I'm thinking the fault is somewhere in the 'front end', oscillator stage perhaps.
I have checked the AM coils and wave selector switch are OK and everything is visually in excellent condition.
Reading various reviews on this radio confirms they were sold very cheaply in the USA and many customers have complained there is little or no sensitivity on AM, whilst others say it works perfectly. This makes me wonder if there is a common fault on these which someone may know, before I start with my test equipment to try to find the problem...
Any advice would be much appreciated!
Sziasztok!
Segítséget kérnék a címben szereplő házi moziban lévő bemenetválasztó körében található ic beazonosításához.
Az IC 382 pozicióban a rajz szerinti felirat C0ZBZ0000474, a fényképen látható T 0416A, vagy 9214A.
Vajon mi ez
Ha valaki tud kérem segítsen .
Köszönöm : Laci
Segítséget kérnék a címben szereplő házi moziban lévő bemenetválasztó körében található ic beazonosításához.
Az IC 382 pozicióban a rajz szerinti felirat C0ZBZ0000474, a fényképen látható T 0416A, vagy 9214A.
Vajon mi ez
Ha valaki tud kérem segítsen .
Köszönöm : Laci
Sziasztok,
nem nagyon szoktam ilyeneket javítani, elég kevés tapasztalatom van ezekkel.
A készenléti LED világít, de onnan nem indul tovább sem távirányítóval, sem a kezelőgombokkal. Távirányító jó. Viszont az infravevőn 3,3 Voltot mérek. Én a rajzon úgy látom, hogy itt 5 Voltnak kellene lennie. A tápegységről jön le egy 6,1V, a rajz szerint itt 5,6-nak kéne lennie. Azt még nem sikerült megfejtenem hogy ennek az állítólagos 5 Voltnak pontosan honnan is kéne jönni. Esetleg van valami jellemző típushibára vonatkozó tapasztalatotok? Nekem ez sokkal áttekinthetetlenebb mint egy TV...
Köszi.
Tamás
Üdv Segitséget kérnék egy aiwa nsx-999 mk2 mini hifi. Elfelejti a rádio memoriát 2-3 nap mulva.
Elöreis köszi Robi69.
Elöreis köszi Robi69.
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