Saturday, January 09, 2016

HARMAN KARDON AVR147/230 AV Receiver disassembling procedure – AV receiver repair AV Receiver disassembling procedure – AV receiver repair

Category: AV Receiver Repair and Service 

Contents of this article 

  • Disassembling procedure
  • Dissembling digram 



HARMAN KARDON AVR147/230

DISASSEMBLY PROCEDURES
<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(BN51-2P) on the Volume PCB(37-6) from connector(CN51) on the Input PCB(39-1).
8. Disconnect the lead wire(BN41-6P) on the Volume PCB(37-6) from connector(CN41) on the Video PCB(41).
9. Disconnect the lead wire(BN90-2P) on the Main PCB(38-1) from connector(CN86) on the Moms PCB(37-4).
10. Remove 1 screw(S10) and then lead wire(JW82-1P,JW83-1P) on the Phone PCB(37-5).
11 .Remove 1screw(S10) and then lead wire(JW84-1P) on the Volume PCB(37-3).
12. 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. Disconnect the lead wire(BN92-5P)on the Volume PCB(37-6) from connector(CN92) on the Phone PCB(37-5).
6. 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(BN85-3P) on the Fip PCB(37-1).
4. Disconnect the lead wire(BN92-5P)on the Volume PCB(37-6) from connector(CN92) on the Phone PCB(37-5).
5. 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(BN85-3P) 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 step<6>.
4. Remove 10 screws(S2) and then remove the Key PCB(37-2).
<8>TUNER MODULE(44) 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).
3. Remove 2 screws(S8) and then remove the Tuner Module(43).
<9>VIDEO PCB(41) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Disconnect the card cable between connector(BN14-13P) on the Video PCB(41)
and connector(CN14) on the Input PCB(39-1).
3. Disconnect connector(CN43) on the Video PCB(41)
from the lead wire(BN43-3P) on the Regulator PCB(A)(40-2).
4. Disconnect the card cable between connector(CN42) on the Video PCB(41).
and connector(BN44-7P) on the iPod PCB(39-2).
5. Disconnect connector(CN41) on the Video PCB(41) from the lead wire(BN41-6P) on the Volume PCB(37-6).
6. Remove 6 screws(S8) and then remove the Video PCB(41).
<10>iPod PCB(39-2) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Remove the Video PCB(41), referring to the previous step<9>
3. Disconnect the card cable between connector(BN19-15P) on the the iPod PCB(39-2)
and connector(CN19) on the Input PCB(39-1).
4. Disconnect the card cable between connector(BN44-7P) on the iPod PCB(39-2)
and connector(CN42) on the Video PCB(41).
5. Disconnect the card cable between connector(CN47-7P) on the iPod PCB(39-2)
and connector(CN47) on the RS232 PCB(37-7).
6. Disconnect the board to board connector between and connector(CN23) on the XM PCB(42)
and connector(BN17-12P) on the iPod PCB(39-2).
7. Remove 2 screws(S13) and then remove the iPod PCB(39-2).
<11>XM PCB(42) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Remove the Video PCB(41), referring to the previous step<9>.
3. Disconnect the card cable between connector(BN21-7P) on XM PCB(42)
and connector(CN21) on the input PCB(39-1).
4. Disconnect the lead wire(BN85-2P) on the XM PCB(42) from connector(CN85) on the Regulator PCB(A)(40-2).
5. Disconnect the board to board connector between and connector(CN23) on the XM PCB(42)
and connector(BN17-12P) on the iPod PCB(39-2).
6. Remove 1 screws(S15) and then remove the XM PCB(42).
<12>HDMI PCB(47) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Disconnect the card cable between connector(CN45-7P) on the HDMI PCB(47)
and connector(CN45-7P) on the Video PCB(41).
3. Remove 3 screws(S15) and then remove the hdmi PCB(47).
<13>RS232 PCB(37-7) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Remove the Video PCB(41), referring to the previous step<9>.
3. Disconnect the card cable between connector(CN47) on the RS232 PCB(37-7)
and connector(CN47-7) on the iPod PCB(39-2).
4. Remove 2 screws and then remove the RS232 PCB(37-7).
<14>INPUT PCB(39-1) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Remove the Tuner module(43), referring to the previous step<8>.
3. Remove the Video PCB(41), referring to the previous step<9>.
4. Remove the iPod PCB(39-2), referring to the previous step<10>.
5. Remove the XM PCB(42), referring to the previous step<11>.
6. Remove the HDMI PCB(47), referring to the previous step<12>.
7. Disconnect connector(CN20) on the the Input PCB(39-1)
from the lead wire(BN20-5P) on the Regulator PCB(B)(40-5).
8. Disconnect connector(CN22) on the Input PCB(39-1) from the lead wire(BN22-6P) on the Phone PCB(37-5).
9. Disconnect connector(CN18) on the Input PCB(39-1) from the lead wire(BN18-5P) on the Phone PCB(37-5).
10. Disconnect connector(CN10) on the Input PCB(39-1) from the lead wire(BN10-4P) on the Volume PCB(37-6).
11. Disconnect the card cable between connector(CN12-21p) on the Input PCB(39-1)
and connector(CN12-21p) on the main PCB(38-1)
12. Disconnect the card cable between connector(CN11-13p) on the Input PCB(39-1)
and connector(CN11) on the main PCB(38-1)
13. Disconnect the card cable between connector(CN72) on the Input PCB(39-1)
and connector(CN72-17p) on the Fip PCB(37-1)
14. Remove 11 screws(S8,S15) and then remove the Input PCB(39-1).
<15>POWER TRANS(36) & POWER PCB ASS’Y(40) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Disconnect lead wire of the Power Trans(36) from connector (CN91-3P) on the Main PCB(38-1)
3. Disconnect connector(CN19-3P,CN20-4P) on TRANS PCB(40-3)
from the lead wire(BN19-3P,BN20-4P) on the Main PCB(38-1).
4. Disconnect the lead wire(BN96-8P) on the Power PCB(40-4)
from connector(CN96) on the Regulator PCB(B)(40-5).
5. Disconnect the lead wire(BN99-8P) on the Power PCB(40-4)
from connector(CN99) on the Regulator PCB(A)(40-2).
6. Disconnect connector(CN81) on the Trans PCB(40-4) from the lead wire(BN81-8P) on the Fip PCB(37-1).
7. Remove 4 Trans screws(S9) and then remove the Power Trans(36)& Power PCB ASS’Y(40) REMOVAL .
<16>MAIN PCB ASS’Y(38-1) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Remove the Tuner module(43), referring to the previous step<8>.
3. Remove the Video PCB(41) referring to the previous step<9>.
4. Remove the iPod PCB(39-2), referring to the previous step<10>.
5. Remove the XM PCB(42), referring to the previous step<11>.
6. Remove the HDMI PCB(47), referring to the previous step<12>.
7. Remove the RS232 PCB(37-7), referring to the previous step<13>.
harman/kardon AVR147/230 Service Manual
8. Remove the Input PCB(39-1), referring to the previous step<14>.
9. Remove the AC Cord(35) on the Main PCB(38-1)
10. Disconnect the lead wire(BN90-2P) on the Main PCB(38-1) from connector(CN86) on Moms PCB(37-4).
11. Disconnect connector (CN91-3P) on the Main PCB(38-1) from lead wire of the Power Trans(36)
12. Disconnect the lead wire(BN89-2P) on the Main PCB(38-1)
from connector(CN89) on Regulator PCB(A)(40-2).
13. Disconnect the lead wire(BN19-3P,BN20-4P) on the Main PCB(38-1)
from connector(CN19-3P,CN20-4P) on TRANS PCB(40-3).
14. Remove 11screws(S13-1EA, S4-2EA, S6-2EA, S8-6EA) and then remove the Main PCB ASS’Y(38-1).

DISASSEMBLING DIAGRAM 
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