Harman Kardon AVR145/230, Service Manual

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AVR145 DISASSEMBLY PROCEDURE
1 TOP-CABINET (21) REMOVAL
1. Remove 13 screws (S1,S7) 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 card cable between connector (CN72-17p) on the FIP PCB (37-1) and connector (CN72) on the Input PCB (39-1).
3. Disconnect the lead wire (BN81-8P) on the FIP PCB (37-1) from connector (CN81) on the Trans PCB (40-4).
4. Disconnect the lead wire (BN22-6P) on the Phone PCB (37-5) from connector (CN22) on the Input PCB (39-1).
5. Disconnect the lead wire (BN18-5P) on the Phone PCB (37-5) from connector (CN18) on the Input PCB (39-1)
6. Disconnect the lead wire (BN10-4P) on the Volume PCB (37-6) from connector (CN10) on the Input PCB (39-1)
7. Disconnect the lead wire (BN41-6P) on the Volume PCB (37-6) from connector (CN41) on the Video PCB (41)
8. Remove 1 screw (S10) and then lead wire (JW82-1P,JW83-1P) on the Phone PCB (37-5).
9 .Remove 1screw (S10) and then lead wire (JW84-1P) on the Volume PCB (37-3).
10. Remove 10 screws (S1) and then remove the Front Panel ASS’Y.
3 VOLUME PCB (37-6) 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.
4. Disconnect connector (CN84) on the Volume PCB (37-6) from the lead wire (BN84-5P) on the FIP PCB (37-1).
5. Remove 8 screws (S2,S14), and then remove the Volume PCB (37-6).
4 PHONE PCB (37-5) 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.. Disconnect connector (CN85)on the Phone PCB (37-5) from the lead wire (BN85-2P) on the FIP PCB (37-1).
4. Remove 2 screws (S2) and then remove the Phone PCB (37-5).
5 POWER LED PCB (37-3) 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. Disconnect connector (CN88) on the Power Led PCB (37-3) from the lead wire (BN88-4P) on the FIP PCB (37-1) .
4. Remove 2 screws (S2) and then remove the Power led PCB (37-3).
6 FIP PCB (37-1) 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. Disconnect the lead wire (BN84-5P) on the FIP PCB (37-1) from connector (CN84) on the Volume PCB (37-6).
4. Disconnect the lead wire (BN85-2P) on the FIP PCB (37-1) from connector (CN85) on the Phone PCB (37-5).
5. Disconnect the lead wire (BN88-4P) on the FIP PCB (37-1) from connector (CN88) on the Power Led PCB (37-3).
6. Disconnect the connector (CN89) on the FIP PCB (37-1) from lead wire (BN89-4P) on the Key PCB (37-2).
7. Remove 3 screws (S2) and then remove the Guide PCB (37-8) & the FIP PCB (37-1).
7 KEY PCB (37-2) 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 FIP PCB (37-1), referring to the previous step6.
4. Remove 10 screws (S2) and then remove the Key PCB (37-2).
AVR145
harman/kardon
Page 8 of 135