Step 1
Remove the 5 screws on Power P.C.B..
Step 2
Detach cable (CN5950) at Transformer P.C.B..
Step 3
Remove Power P.C.B..
Note:
Insulate the Power P.C.B. with insulation material to avoid short
circuit.
·
Replacement of Power Amp IC (IC5301).
Step 1
Flip the Power P.C.B. over and desolder the pins.
Step 2
Remove 1 screw and IC clip.
Step 3
Remove IC5301 from heat sink unit.
Note:
For disassembly of IC5101, Q5101, Q5102, Q5111
and Q5112 repeat
(Step 1)
to
(Step 2)
. (For information,
IC5101, Q5101, Q5102, Q5111 and Q5112 does not have
IC clip.)
·
Replacement of IC5501.
Step 1
Flip the Power P.C.B. over and desolder the pins of
IC5501.
Step 2
Twist the heat sink leg as arrow shown.
10.9. Disassembly of Power P.C.B.
·
Follow the (Step 1) - (Step 5) of Item 10.4
·
Follow the (Step 1) - (Step 4) of Item 10.5
·
Follow the (Step 1) - (Step 4) of Item 10.6
·
Follow the (Step 1) - (Step 3) of Item 10.7
31
SA-AK450PL
Summary of Contents for SA-AK450PL
Page 8: ...8 SA AK450PL ...
Page 11: ...6 Accessories Remote Control FM Antenna Wire AC Cord AM Loop Antenna 11 SA AK450PL ...
Page 12: ...7 Operating Instructions Procedures 7 1 Main Unit Key Buttons Operations 12 SA AK450PL ...
Page 13: ...7 2 Remote Control Key Buttons Operations 13 SA AK450PL ...
Page 26: ...10 3 Main Parts Location 26 SA AK450PL ...
Page 38: ...10 17 1 Replacement of Pinch Roller and Head Block 38 SA AK450PL ...
Page 39: ...10 17 2 Replacement of Motor Capstan Belt A Capstan Belt B and Winding Belt 39 SA AK450PL ...
Page 45: ...12 4 Checking and Repairing of Power P C B 45 SA AK450PL ...
Page 47: ...47 SA AK450PL ...
Page 51: ...15 3 Main P C B 15 4 Panel P C B 51 SA AK450PL ...
Page 52: ...15 5 Power P C B Transformer P C B 52 SA AK450PL ...
Page 53: ...15 6 Waveform Chart 53 SA AK450PL ...
Page 62: ...SA AK450PL 62 ...
Page 64: ...64 SA AK450PL ...
Page 84: ...SA AK450PL 84 ...
Page 89: ...23 Exploded Views 23 1 Cabinet Parts Location SA AK450PL 89 ...
Page 90: ...SA AK450PL 90 ...
Page 91: ...23 2 Deck Mechanism Parts Location RAA4403 S SA AK450PL 91 ...
Page 92: ...23 3 Packaging SA AK450PL 92 ...