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Mi To engineers in charge of repair
or inspection of our products.
Before repair or inspection, make sure to follow
the instructions so that customers and Engineers
in charge of repair or inspection can avoid suf-
fering any risk or injury.
1. Use specified parts.
The system uses parts with special safety features
against fire and voltage. Use only parts with equivalent
characteristics when replacing them.
The use of unspecified parts shall be regarded as re-
modeling for which we shall not be liable. The onus of
product liability (PL) shall not be our responsibility in
cases where an accident or failure is as a result of un-
specified parts being used.
2. Place the parts and wiring back in their original positions
after replacement or re-wiring.
'
For proper circuit construction, use of insulation tubes,
bonding,gaps to PWB, etc, is involved. The wiring con-
nection and routing to the PWB are specially planned
using clamps to keep away from heated and high volt-
age parts. Ensure that they are placed back in their origi-
nal positions after repair or inspection.
If extended damage is caused due to negligence during
repair, the legal responsibility shall be with the repairing
company.
3. Check for safety after repair.
Check that the screws, parts and wires are put back se-
curely in their original position after repair. Ensure for
safety reasons there is no possibility of secondary
ploblems around the repaired spots.
If extended damage is caused due to negligence of re-
pair, the legal responsibility shall be with the repairing
company.
4. Caution in removal and making wiring connection to the
parts for the automobile.
Disconnect the battery terminal after turning the ignition
key off. If wrong wiring connections are made with the
battery connected, a short circuit and/or fire may occur.
If extensive damage is caused due to negligence of re-
pair, the legal responsibility shail be with the repairing
company.
5. Cautions regarding chips.
Do not reuse removed chips even when no abnormality
is observed in their appearance. Always replace them
with new ones. (The chip parts include resistors, capaci-
tors, diodes, transistors, etc). The negative pole of tan-
talum capacitors is highly susceptible to heat, so use
special care when replacing them and check the opera-
tion afterwards.
6. Cautions in handling flexible PWB
Before working with a soldering iron, make sure that the
iron tip temperature is around 270°C. Take care not to
apply the iron tip repeatedly(more than three times)to
the same patterns. Also take care not to apply the tip with
force.
7. Turn the unit OFF during disassembly and parts replace-
ment. Recheck all work before you apply power to the
unit.
ARX8570Rz
ARX8570RWz
MNOTE
3 We cannot supply PWB with component parts in prin-
ciple. When a circuit on PWB has failure , please re-
pair it by component parts base.
Parts which are not
mentioned in service manual are not supplied.
MINOTES OF ISO CONNECTOR
-2-
1. For VW and Audi vehicles, change the position of fuse
installation as shown on the diagram. (Figure 1)
The position of fuse
for other vehicles
The position of fuse
<< for VW and Audi
vehicles
Main unit side
ISO connector
Figure 1
2. The lead include with the unit must be connected to the
specified position of the vehicle's ISO connector in or-
der to use the "triggered audio mute for cellular tele-
phones" function. (Figure 2)
Main unit side
n y
o e
ISO connector
Vehicle side
~~
ISO connector
Connect the included
brown lead to the
connector's "PHONE
MUTE" position.
Terminal side
Connect to cellular
f
phone mute lead.
Fasten using insulating tape, etc. , to prevent
short-circuits at the connection.
Figure 2
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