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National Stereo Radio Cassette Corder Repair guide.

Discussion in 'Troubleshooting and Repair' started by elec_sham, May 27, 2007.

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  1. elec_sham


    May 16, 2007

    Can anyone guide me as to how should I rectify the fault and make its radio section operational.

    I can tell you that the radio section used the following ICs and I have already downloaded and have the datasheet. What i need is the functionality of the whole operations of selector mode switch, which is only possible with complete schematic.

    The Circuit uses the following ICs in radio section:

    LA 1185 + LA1260
    BA 1332
    Main AF Amplifier built around BA5406

    I am confused whether the selector switch (Radio/Tape/Sleep) or band switch (FM/MW/SW1/SW2) has gone bad. What are the tips whereby I should reach at a conclusion about rectification.

    Thanks and regards,

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