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6.2.3.

CD Loading Test Mode

6.2.4.

CD Traverse Unit Test

OPEN

Operation

OPEN wait 

for 1 s 

CLOSE

Operation

CLOSE

wait for 4s

Count Up 

First Track 

Access

Last Track 

Access

First Track 

Play 5 s 

Last Track 

Play 5 s 

Count Up

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6.2.5.

CD Combination Test Mode

First Track 

Access 

Last Track 

Access 

First Track 

Play 10 s 

Last Track 

Play 10 s 

OPEN

Operation

OPEN wait 

for 1 s 

CLOSE

Operation

Count Up

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7 Service Fixture & Tools

Prepare service tools before proccess service position.

Service Tools

Remarks

Deck P.C.B. (JW830) - Main P.C.B. (CN2104)

REXN0084 (10P cable)

Panel P.C.B. (ZJ903) - Main P.C.B. (CN4104)

REXN0082 (4P cable)

Panel P.C.B. (CN900) - Main P.C.B. (CN2105)

REXN0080 (10P cable)

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8 Disassembly and Assembly Instructions

Caution Note:

• This section describes the disassembly and/or assembly procedures for all major printed circuit boards & main compo-

nents for the unit. (You may refer to the section of “Main components and P.C.B Locations” as described in the service
manual)

• Before carrying out the disassembly process, please ensure all the safety precautions & procedures are followed.
• During the disassembly and/or assembly process, please handle with care as there may be chassis components with

sharp edges.

• Avoid touching heatsinks due to its high temperature after prolong use. (See caution as described below)

• During disassembly and assembly, please ensure proper service tools, equipments or jigs is being used.
• During replacement of component parts, please refer to  the section of “Replacement Parts List” as described in the

service manual.

• Select items from the following indexes when disassembly or replacement are required.

• Disassembly of Top Cabinet Assembly
• Disassembly of Music Port P.C.B.
• Disassembly of Front Panel Assembly
• Disassembly of Panel P.C.B., Standby P.C.B. and Volume P.C.B.
• Disassembly of Woofer Speaker (SP1)
• Disassembly of Woofer Speaker (SP2)
• Disassembly of CD Lid
• Disassembly of Deck Mechanism Unit
• Disassembly of Deck P.C.B.
• Disassembly of Cassette Lid
• Disassembly of Mecha Bottom Cover
• Disassembly of Power P.C.B.
• Disassembly of Main P.C.B.
• Replacement of Transistor (Q4107)
• Replacement of Power IC (IC4101)
• Disassembly of CD Mechanism Unit
• Disassembly of CD Servo P.C.B.
• Disassembly of Battery (1) P.C.B.
• Disassembly of Battery (2) P.C.B.