DISASSEMBLY PROCEDURES for HK AVR 137
<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. Remove 3 screws(S2) and then remove the Guide PCB(37-8) & the Fip PCB(37-1).
<7>TUNER MODULE(42) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Disconnect the card cable between connector(CON1-13p) on the Tuner module(42)
and connector(CN13) on the Input PCB(39-1).
harman/kardon
AVR137/230 Service Manual
Page 8 of 87
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