Clarion DXZ955MC Service Manual page 2

* This Main PWB adjustment is made to install the exclusive
software for adjustment in a personal computer, the CeNET
analyzer and a SSG with personal computer of
exclusive use required.
* This DSP IC SAF7730HV(051-6706-10) of main PWB is exposed
die soldering pad type. The middle of this IC package is soldered
with the main PWB, and it cannot remove in an ordinary
soldering iron. Please use special removal JIG at the time of IC
exchange.
* If you purchased a replacement DCP, an electrical adjustment is
necessary. Please refer to the adjustment of this service manual
for the V-COM-DC adjustment.
* MUSIC CATCHER for recording CD-DA.
In the MUSIC CATCHER mode, the files recorded in the
built-in flash memory are played back.
Recordable media are CD-DAs only.
Discs(CD-R/CD-RW) created by copying on a music recorder
cannot be recorded.
MP3/WMA discs cannot be recorded.
COMPONENTS
PE-2747B-A,PE-2747K-A
1. Main unit
2. Rmote controller unit
3. Battery(CR2025)
4. Mounting bracket
5. Universal MTG-bracket
6. DCP case
7. Outer escutcheon
8. RCA PIN CORD
9. Extension lead
10. Parts bag
10-1. Removal key
10-2. Screw(M5x8)
10-3. Pad screw(M1.7x6)(*B-A)
10-4. Rubber part
*B-A: For DXZ955MC (PE-2747B-A)
CAUTIONS
Use of controls, adjustment or performance of procedures
other than those specified herein, may result in hazardous
radiation exposure.
The COMPACT DISC player should not be adjusted or re-
paired by anyone except properly qualified service person-
nel. (for PE-2747B-A)
DXZ955MC
DXZ956MC
----------- 1
RCB-172-600 1
----------- 1
300-4976-00 1
300-7742-00 1
335-5734-30 1
370-6148-00 1
855-5519-51 1
854-6433-50 1
----------- 1
331-2497-00 2
716-0496-01 1
716-0872-11 1
345-3799-20 8
Bottom view
- 2 -
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 suffering
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 character-
istics when replacing them.
The use of unspecified parts shall be regarded as remod-
eling 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 unspecified 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 voltage parts.
Ensure that they are placed back in their original 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 repair,
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 repair,
the legal responsibility shall 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, capacitors,
diodes, transistors, etc). The negative pole of tantalum
capacitors is highly susceptible to heat, so use special care
when replacing them and check the operation 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 ap-
ply 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.
8. Cautions in checking that the optical pickup lights up.
The laser is focused on the disc reflection surface through
the lens of the optical pickup. When checking that the la-
ser optical diode lights up, keep your eyes more than 30cms
away from the lens. Prolonged viewing of the laser within
30cms may damage your eyesight.