Panasonic SB-PM23P Service Manual ▷ View online
1 Assembling and Disassembling
“ATTENTION SERVICER”
Some chassis components may have sharp edges. Be careful when disassembling and servicing.
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.
4. Refer to the Parts No. on the page of “Parts Location and Replacement Parts List” (Section 5), if necessary.
4. Refer to the Parts No. on the page of “Parts Location and Replacement Parts List” (Section 5), if necessary.
Below is the list of disassembly sections
· Disassembly of Net Frame Assembly
· Disassembly of Woofer
· Disassembly of Speaker Cabinet Assembly
· Disassembly of Woofer
· Disassembly of Speaker Cabinet Assembly
1.1. Disassembly flow chart
The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the
servicing.
To assemble the unit, reverse the steps shown in the chart as below.
servicing.
To assemble the unit, reverse the steps shown in the chart as below.
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1.2. Disassembly of Net Frame
Assembly
Step 1: Upset the Speaker unit as shown above.
Step 2: Insert a steel rule into the grooves of Speaker Cabinet
Assembly. Push the steel rule foward and backward as arrow
shown.
Caution:
Do not exert strong force as it may damage the Net Frame
Assembly.
Step 2: Insert a steel rule into the grooves of Speaker Cabinet
Assembly. Push the steel rule foward and backward as arrow
shown.
Caution:
Do not exert strong force as it may damage the Net Frame
Assembly.
Step 3: Upset the Speaker unit as shown above.
Step 4: Insert a flathead screwdriver above the steel rule as
shown.
Step 4: Insert a flathead screwdriver above the steel rule as
shown.
Step 5: Apply light force around the sides of Speaker Cabinet
Assembly to push up the Net Frame Assembly.
Caution:
Do not exert strong force as it may damage the Net Frame
Assembly.
Assembly to push up the Net Frame Assembly.
Caution:
Do not exert strong force as it may damage the Net Frame
Assembly.
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1.3. Disassembly of Woofer
Follow (step 1) to (step 5) in item 1.2.
Step 1: Remove 4 screws from Woofer.
Step 2: Insert a steel rule between the Woofer and Speaker
Cabinet Assembly to push out the Woofer.
Cabinet Assembly to push out the Woofer.
Step 3: Remove the Woofer by detaching the (+) Red and (-)
Black wires.
Black wires.
· Disassembly of Speaker Cabinet Assembly
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1.4. Assembly of Speaker unit
Step 1: Scrape off using the scriber and clean up the remaining
glue at the 6 bosses and 6 holes and replace with new glue.
glue at the 6 bosses and 6 holes and replace with new glue.
Step 2: Replace the Net Frame Assembly firmly back to the
Speaker Cabinet Assembly.
Speaker Cabinet Assembly.
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