Page 1
DEH-1650/XU/ES
2
1234
1234
C
D
F
A
B
E
SAFETY INFORMATION
- CD Section Precaution
1. Before disassembling the unit, be sure to turn off
the power. Unplugging and plugging the connectors
during power-on mode may damage the ICs inside
the unit.
2. To protect the pickup unit from electrostatic discharge
during servicing, take an appropriate treatment
(shorting-solder) by referring to "the DISASSEMBLY"
on page 47.
3. After replacing the pickup unit, be sure to check the
grating. (See p.44.)
4. In this product, because the memory capacity of the
microcomputer is insufficient, the test mode is not
installed. However grating of the pickup unit can be
confirmed.
This service manual is intended for qualified service technicians; it is\
not meant for the casual do-it-yourselfer.
Qualified technicians have the necessary test equipment and tools, and h\
ave been trained to properly and safely complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliabi\
lity of the product and may void the If you are not qualified to perform the repair of this product properly \
and safely, you should not risk and refer the repair to a qualified service technician.
repair
warranty.
trying to do so
Downloaded From http://www.free-service-manuals.com
Page 2
DEH-1650/XU/ES 3
5 678
56 7
8
C
D
F
A
B
E
[ Important symbols for good services ]In this manual, the symbols shown-below indicate that adjustments, setti\
ngs or cleaning should be made securely.
When you find the procedures bearing any of the symbols, be sure to fulf\
ill them:
2. Adjustments
To keep the original performances of the product, optimum adjustments or\
specification confirmation is indispensable.
In accordance with the procedures or instructions described in this man\
ual, adjustments should be performed.
3. Cleaning
For optical pickups, tape-deck heads, lenses and mirrors used in project\
ion monitors, and other parts requiring cleaning,
proper cleaning should be performed to restore their performances.
5. Lubricants, glues, and replacement parts Appropriately applying grease or glue can maintain the product performan\
ces. But improper lubrication or applying
glue may lead to failures or troubles in the product. By following the i\
nstructions in this manual, be sure to apply the
prescribed grease or glue to proper portions by the appropriate amount.F\
or replacement parts or tools, the prescribed
ones should be used.
4. Shipping mode and shipping screws
To protect the product from damages or failures that may be caused durin\
g transit, the shipping mode should be set or
the shipping screws should be installed before shipping out in accordanc\
e with this manual, if necessary.
1. Product safety
You should conform to the regulations governing the product (safety, ra\
dio and noise, and other regulations), and
should keep the safety during servicing by following the safety instruct\
ions described in this manual.
Downloaded From http://www.free-service-manuals.com
