(No.MA596<Rev.005>)7/28
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1
How to repair a fuse pattern
2.1.1 Purpose of fuse pattern
In order to prevent serious damage on the circuit, fuse pattern is prepared on the GND line of RCA Terminal. This damage may
take due to improper part replacement with a external equipment via RCA line.
2.1.2 Repair Procedure
(1) Check the shorted circuit at the meltdown point.
Need to clean up if the shorted circuit or carbonization happen at the fuse pattern.
(2) Add following part on the fuse pattern.
(3) Check output level.
2.1.3 After finished repair
Due to improper part replacement, this meltdown occurs.
Thus please notice following information when the unit is returned to your customer.
Things to be checked before installing the unit.
(1) Check the GND line of external amplifier or other equipment which must connect properly.
(2) Check whether the GND line is not short-circuited with the battery terminal. (do not short-circuit these lines)
2.2
How to identify the CD mechanism ASSY
Identification number of the 14 characters are printed on the CD mechanism ASSY upper surface.
Part Number
Part Name
SPEC
F53-0513-08
PATTERN FUSE
4A
Meltdown point
Production site
Made at JEIN
Made at JKEM
CD mechanism ASSY
FC2-2A00NXN
X92-6820-01
PWB ASSY
LVA20106-01A
X32-6680-00
PW BOARD
LVB20106-001B
J76-0898-12
Identification number
xxxxxxNxxxxxxx
The 7th character is "N".
xxxxxxWxxxxxxx
The 7th character is "W".
The 7th character