<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).
28
Summary of Contents for HK 3370
Page 24: ...4 BLOCK DIAGRAM HK3370 HK3470 24...
Page 29: ...29...
Page 30: ...30...
Page 31: ...31...
Page 32: ...32...
Page 33: ...33...
Page 34: ...34...
Page 71: ...3 Circuit Description CPU IC401 uPD780204GF 1 Pin Configuration hk3370 hk3470 harman kardon 71...
Page 75: ...1 1 1 1 1 1 MANUAL TUNING UP DOWN MANUAL TUNING UP DOWN KEY OFF 1 2 3 1 4 5 6 75...
Page 76: ...1 2 3 1 4 5 6 1 2 3 1 3 1 1 2 2 3 1 4 5 6 AUTO TUNING UP DOWN POWER ON 76...
Page 77: ...4 Pheriperal IC Operation 1 FUNCTION IC LC7821 1 3 77...
Page 82: ...HI M602H0 REMOTE RECEIVER hk3370 hk3470 harman kardon 82...
Page 84: ...hk3370 hk3470 harman kardon 84...
Page 85: ...IC 603 LA3401 hk3370 hk3470 harman kardon 85...
Page 86: ...hk3370 hk3470 harman kardon 86...
Page 87: ...hk3370 hk3470 harman kardon 87...
Page 88: ...hk3370 hk3470 harman kardon 88...
Page 89: ...hk3370 hk3470 harman kardon 89...
Page 90: ...hk3370 hk3470 harman kardon 90...
Page 91: ...hk3370 hk3470 harman kardon 91...
Page 103: ...hk3370 hk3470 harman kardon 103...
Page 104: ...HK3370 HK3470 P C BOARD MAIN MAIN 104...
Page 105: ...HK 3370 P C BOARD AMP AMP 105...
Page 106: ...P C BOARD AMP HK 3470 AMP 106...
Page 107: ...P C BOARD FRONT FRONT HK3370 HK3470 107...
Page 108: ...P C BOARD TUNER VR HP COIL TUNER VR HP COIL HK3370 HK3470 108...
Page 109: ...HK3370 HK3470 P C BOARD TONE POWER SW LED TONE POWER SW LED 109...
Page 110: ...HK 3370 SCHEMATIC DIAGRAM MAIN 110...
Page 111: ...SCHEMATIC DIAGRAM MAIN HK 3370...
Page 112: ...HK 3370...
Page 113: ...SCHEMATIC DIAGRAM MAIN HK3470 113...
Page 114: ...SCHEMATIC DIAGRAM MAIN HK3470...
Page 115: ...HK3470...
Page 117: ...SCHEMATIC DIAGRAM FRONT HK3370 HK3470 117...
Page 118: ...SCHEMATIC DIAGRAM FRONT HK3370 HK3470...
Page 119: ...HK3370 HK3470...
Page 120: ...SCHEMATIC DIAGRAM TUNER VR HP HK 3370 HK 3470 HEAD PHONE TUNER 120...
Page 121: ...12 WIRING DIAGRAM HK 3370 HK 3470 121...
Page 122: ...HK 3370 122...
Page 123: ...HK 3470 123...
