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Quick service response. A useful and very rare service manual with all details. I recomend this service.
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I ordered this manual sometime in the afternoon and I received it on my e-mail the same evening.
This is a fantastically good and properly scanned copy of the original manual. All pages are of the same scale and they overlap each other. It means that you can print the manual and easily make it as a convenient paper manual.
The content of the manual is fantastic. Alignment descriptions, PCB layouts and elementary diagrams are explicit and precise. I immediately found what I was looking for. Thanks to this manual and Owner-Manuals.com my amplifier is alive again. Many thanx indded!
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The manual was well-scanned and easy to read. As an added bonus, the Operator's Manual was bundled with the Service Manual!
I'd definitely use owner-manuals.com again.
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Finally, i found one website, where i can download this service manual , and fix my hifi. The service manual is very good, and easy to download and to print.
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Complete and very useful. Could have benefited from a little higher resolution on the schematic and layout diagrams for improved legibility.
HK3370/HK3470
<8> PHONES P. C. BOARD(e) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step<1>. 2. Remove the Front-panel ASS'Y(AA), referring to the previous step<2>. 3. Disconnect the lead wire(CW 801, 3P) from connector(CN 401) on the Amp P. C. Board(h). 4. Remove 2 screws(E) and then remove the Phones P. C. Board(e). <9> POWER P. C. BOARD(f) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step<1>. 2. Remove the Front-panel ASS'Y(AA), referring to the previous step<2>. 3. Disconnect the lead wire(CW 801, 5P) from connector(CN 302) on the Front P. C. Board(d). 4. Remove 2 screws(J) and then remove the Power P. C. Board(f). <10> STANDBY P. C. BOARD(g) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step<1>. 2. Remove the Front-panel ASS'Y(AA), referring to the previous step<2>. 3. Remove 2 screws(J) and then remove the Standby P. C. Board(g). <11> TUNER P. C. BOARD(j) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step<1>. 2. Remove 21 screws(G,K) and then remove the Chassis-back(41). 3. Pull out the Tuner P. C. Board(j). <12> RADIATOR ASS'Y(AB) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step<1>. 2. Disconnect the connector(CN 401) from lead wire(CW 801, 3P) on the Phones P. C. Board(e). 3. Disconnect the lead wire(CW 403, 4P) from connector(CN 111, CN 112) on the Main P. C. Board(i). 4. Disconnect the lead wire(CW 402, 10P) from connector(CN 107) on the Main P. C. Board(i). 5. Disconnect the lead wire(CW 401, 4P) from connector(CN 108) on the Main P. C. Board(i). 6. Remove 7 screws(I) and then pull out the Radiator Ass'Y(AB). <13> AMP P. C. BOARD(h) REMOVAL. 1. Remove the Chassis-top(44), referring th the previous step<1>. 2. Remove the Radiator Ass'Y(AB), referring to the Previous step<12>. 3. Disconnect the connector(CN 402) from lead wire(posistor, 2P) on the Radiator-main (21). 4. Remove 4 screws(D) and then remove the Amp P. C. Board(h). <14> POWER TRANS(38) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step<1>. 2. Disconnect the lead wire(2P) from connector(CN 103) on the Main P. C. Board(i). 3. Disconnect the lead wire(3P) from connector(CN 104) on the Main P. C. Board(i). 4. Disconnect the lead wire(6P) from connector(CN 105) on the Main P. C. Board(i). 5. Disconnect the lead wire(3P) from connector(CN 106) on the Main P. C. Board(i). 6. Remove 4 screws(B) and then remove the Power trans(38). <15> MAIN P. C. BOARD(i) REMOVAL. 1. Remove the Chassis-top(44), referring to the previous step<1>. 2. Remove the Tuner P. C. Board(j), referring to the previous step<11>. 3. Disconnect the connector(CN 109) from lead wire(CW 701, 10P) on the Volume P. C. Board(b). 4. Disconnect the connector(CN 108) from lead wire(CW 401, 4P) on the Amp P. C. Board(h). 5. Disconnect the connector(CN 115) from connector(CN 301, card cable) on the Front P. C. Board(d). 6. Disconnect the connector(CN 107) from lead wire(CW 402, 10P) on the Amp P. C. Board(h). 7. Disconnect the connector(CN 106) from lead wire(3P) on the Power-trans(38). 8. Disconnect the connector(CN 105) from lead wire(6P) on the Power-trans(38). 9. Disconnect the connector(CN 113) from lead wire(CW 301, 7P) on the Front P. C. Board(d). 10. Disconnect the connector(CN 104) from lead wire(3P) on the Power-trans(38). 11. Disconnect the connector(CN 111, CN 112) from lead wire(CW 403, 4P) on the Amp P. C. Board(h). 12. Disconnect the connector(CN 102) from lead wire(CN 801, 2P) on the Standby P. C. Board(g). 13. Disconnect the connector(CN 103) from lead wire(2P) on the Power-trans(38). 14. Disconnect the connector(CN 101) from Ac cord(40).
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