Read Sony CFD-Z125 / CFD-Z135 Service Manual online
distortion in AC operation.
CD player section
Wave length:780 nm
Emission duration : Continuous
Laser output : Less than 44.6 µW
(This output is the value measured at a distance
of about 200 mm from the objective lens surface
on the optical pick-up block with 7 mm
AM : 530 – 1,710 kHz
AM : Built-in ferrite bar aerial
For 16 – 68
120V AC, 60 Hz
9V DC, 6 size D (R20) batteries
For remote (CFD-Z135 only) :
3V DC, 2 size AA (R6) batteries
Remote controller (1) (CFD-Z135 only)
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
following 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
and from all exposed metal parts to any exposed metal part having
a return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
WT-540A. Follow the manufacturers’ instructions to use these
digital multimeter is suitable for this job.
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 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
other than those specified herein may result in hazardous radiation
3-11. Cassette Door ··································································· 14
Tape Deck Section ···························································· 16
Tuner Section ···································································· 18
CD Section ······································································· 20
BLOCK OR BASE UNIT
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown 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
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.
Chuck Plate Jig.
3. Turn on S702 as following figure.
4. Press the fl button.
5. Confirm the laser diode emission while observing the objecting
optical pick-up is broken.
Objective lens moves up and down three times for the focus
You must use the same type of color marked ceramic filters in order
to meet same specifications.
Therefore, the ceramic filter must change two pieces together since
it’s supply two pieces in one package as a spare parts.