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This manual is all I need to check and repair my equipment. Thank you....
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This manual is all I need to check and repair my equipment. Thank you....
;
this manual make me repair my vintage radio with easily.
Thank you for your best service
sukpra
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A good manual. Had everything i needed to make the repair.
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This manual is a complete guide, including later additions. It has all the necessary information about the replacement items. The material quality is great to read.
TK-790/(B)/H(B)
DISASSEMBLY FOR REPAIR (TK-790/(B))
1. Removing the Case and Shield Cover
1. Remove the 9 screws ( 1 ), and remove the upper and lower halves of the case. (Remove the 4 screws holding the upper half and the 5 screws holding the lower half.) 2. Remove the shield cover ( 2 ).
3. Removing the Final Unit (X57-561 C/3)
1. Remove the 2 screws ( 5 ) holding the power module to the frame. 2. With a screwdriver, remove the leaf spring ( 6 ) holding the Q2 to the frame. 3. Desolder the power module. 4. Remove the 2 screws holding the lead terminal from DC connector (2P) on the rear. 5. Remove the 8 screws ( 7 ) holding the PC board. 6. Desolder CN4 on the antenna connector.
2. Removing the TX-RX Unit (X57-561 A/3)
1. Remove the 7 screws ( 3 ), and remove the PLL shield case. 2. Remove the connector (CN201) and coaxial plugs (CN104, CN203) from the final unit, and remove the flat cable (CN202) upwards from the control unit (CN502). 3. Remove the 5 screws ( 4 ).
1
1
1
1
2
7
7
7 7 5
5 7 7 7
6 CN203 33 3 3 3 4 4 3 3 4 CN201 CN104 Final unit
44 TX-RX unit
Control unit
1 1 1 1
1
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