HK 3380 (serv.man9) - Harman Kardon Audio Service Manual (repair manual). Page 4

 

<1> TOP-CABINET(21) REMOVAL 

1. Remove 13 screws(S1) and then remove the Top-cabinet. 

 
<2> FRONT PANEL ASS’Y REMOVAL 

1. Remove the Top-cabinet, referring to the previous step<1>. 
2. Disconnect the lead wire(BN71-12P,BN72-5P) on the Tone PCB(38) from connector(CN71,CN72) on the   

Main PCB(44). 

3. Disconnect the lead wire(BN82-7P) on the Front PCB(37) from connector(CN82) on the Main PCB(44). 
4. Disconnect the connector(CN81-20P wire assy) on the Front PCB(37) from connector(CN81)   

on the Main PCB(44). 

5. Disconnect the lead wire(BN73-3P) on the Phone PCB(40) from connector(CN73) on the Main PCB(44). 
6. Disconnect the lead wire(BN89-7P) on the Front PCB(37) from connector(CN73) on the Download PCB(44). 
7. Remove 1 screw(S10) and then lead wire(JW73-2P) on the Phone PCB(40). 
8. Remove 1 screw(S10) and then lead wire(JW72-1P) on the Tone PCB(38). 
9. Remove 9 screws(S1) and then remove the Front Panel ASS’Y. 
 

<3> TONE PCB(38) REMOVAL 
    1. Remove the Top-cabinet, referring to the previous step<1>. 

2. Remove the Front Panel ASS’Y, referring to the previous step<2>. 
3. Pull out the Volume Knob ASS’Y & 3 Rotary Knobs(5). 
4. Remove 9 screws(S1,S11) and then remove the Tone PCB(38). 
5. Disconnect the lead wire(BN83-4P) from connector(CN83) on the Tone PCB(38). 
 

<4>PHONE PCB(40) REMOVAL 
    1. Remove the Top-cabinet, referring to the previous step<1>. 

2. Remove the Front Panel ASS’Y, referring to the previous step<2>. 
3. Remove 2 screws(S2,S3) and then remove the Phone PCB(16). 

 
<5>POWER LED PCB(39) REMOVAL 
    1. Remove the Top-cabinet, referring to the previous step<1>. 

2. Remove the Front Panel ASS’Y, referring to the previous step<2>.   
3. Remove 2 screws(S2) and then remove the Power led PCB(39). 
4. Disconnect the lead wire(BN84-4P) from connector(CN84) on the Power led PCB(39). 

 
<6>FRONT PCB(37) REMOVAL 
    1. Remove the Top-cabinet, referring to the previous step<1>. 

2. Remove the Front Panel ASS’Y, referring to the previous step<2>.     
3. Remove the Tone PCB(38), referring to the previous step<3>. 
4. Remove the Phone PCB(40), referring to the previous step<4>. 
5. Remove the Power led PCB(39), referring to the previous step<5>.   
6. Remove 13 screws(S2) and then remove the Front PCB(37). 

 
<7>TUNER MODULE(34) REMOVAL 
    1. Remove the Top-cabinet, referring to the previous step<1>.   

2. Disconnect the connector(CON1-Card cable) from connector(CN26) on the Main PCB ASS’Y(44). 
3. Remove 2 screws(S8) and then remove the Tuner Module(34).