Read Sony CDP-M7 / DHC-MD7 Service Manual online
• IC501 System Control (µPD780205GF-016-3BA) ....... 12
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exceeding the limit for Class 1.
CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT
MARKING is located on the rear
dures other than those specified herein may result in haz-
ardous radiation exposure.
is located inside
• Notice that the minus side of a tantalum capacitor may be
Parts on Set
safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
from all exposed metal parts to any exposed metal part having a re-
turn to chassis, must not exceed 0.5 mA (500 microampers).
Leakage current can be measured by any one of three methods.
V, so analog meters must have an accurate low-voltage scale. The
Simpson 250 and Sanwa SH-63Trd are examples of a passive
VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
the disc reflective surface by the objective lens in the optical pick-up
block. Therefore, when checking the laser diode emission, observe
from more than 30 cm away from the objective lens.
OR BASE UNIT
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also use
the procedure in the printed matter which is included in the repair
The flexible board is easily damaged and should be handled with
encorder switch as
shown in the figure.
(SLIDE), tilt the screwdriver (flat-blade) in the
direction of arrow