Panasonic SA-HT520EE Service Manual ▷ View online
Some chassis components may have sharp edges.
Be careful when disassembling and servicing.
16 Disassembly and Main Component Replacement
Procedures
“ATTENTION SERVICER”
1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the
main components.
2. For reassembly after operation checks or replacement, reverse the respective procedures.
Special reassembly procedures are described only when required.
3. Select items from the following index when checks or replacement are required.
Warning:
This product uses a laser diode. Refer to caution statement Precaution of Laser Diode.
ACHTUNG:
Die Lasereinheit nicht zerlegen.
Die Lasereinheit darf nur gegen eine vom Hertsteller spezifizierte Einheit ausgetauscht werden.
16.1. Disassembly flow chart
The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the
servicing
servicing
To assemble the unit, reverse the steps shown in the chart below.
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SA-HT520EE
16.2. P.C.B. Positions
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SA-HT520EE
Step 1: Remove 4 screws.
Step 2: Remove 3 screws at rear panel.
Step 1: Remove lid. (Using active subwoofer unit/ jig to power-
up the unit.)
up the unit.)
Step 2: Detach FFC Boards (CN2008 and CN2009).
Step 3: Release the catches on the left and right side of front
unit.
unit.
Step 3: Lift the top cabinet upwards and push in backward.
Step 4: Release the catches from bottom chassis.
16.3. Disassembly of Top Cabinet
16.4. Disassembly of Front Panel Unit
·
Follow the (Step 1) - (Step 3) of item 16.3 - Disassembly of Top Cabinet
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SA-HT520EE
Step 1: Remove 2 screws.
Step 2: Lift up the Metal Bracket.
Step 1: Remove 4 screws at the rear panel.
Step 5: Draw front panel unit forward.
·
Note:
Avoid pulling the front panel unit using strong force.
This may cause damage to Main P.C.B. due to abrasion
between metal bracket and the mechanism unit.
between metal bracket and the mechanism unit.
Step 3: Remove 6 screws.
Step 4: Remove 5 screws at Panel P.C.B.
Step 5: Mic P.C.B. will show.
16.5. Disassembly of Panel P.C.B., Tact Switch P.C.B. & MIC P.C.B.
·
Follow the (Step 1) - (Step 3) of item 16.3 - Disassembly of Top Cabinet
·
Follow the (Step 1) - (Step 5) of item 16.4 - Disassembly of Front Panel Unit
16.6. Disassembly of Main P.C.B.
·
Follow the (Step 1) - (Step 3) of item 16.3 - Disassembly of Top Cabinet
·
Follow the (Step 1) - (Step 5) of item 16.4 - Disassembly of Front Panel
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SA-HT520EE
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