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Extracted text from sony scd 1 service manual (Ocr-read)
3
SECTION 3
SERVICING NOTES
The laser diode in the optical pick-up block may suffer electro-
static 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 parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
MODEL IDENTIFICATION
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
Part No.
-“ Back Panel -“
Model Par t No.
SCD-1: US, Canadian 4-215-784-1 s
SCD-1: AEP 4-215-784-2 s
SCD-777ES: AEP 4-221-854-0 s
SCD-777ES: US, Canadian 4-221-854-1 s
CHECKING METHOD OF MICROCOMPUTER ROM
VERSION
1. Set the CD1/CD2 switch on the remote commander to CD1.
2. With the power turned on, press the [CHECK] button on the
remote commander while pressing the [TEXT] button on the
set.
3. 15-digit numeric value will be displayed, and the top 4 digits
(left side) of the numeric value imply the microcomputer ROM
version.
Example: If Ò200006100FFFF3CÓ is displayed, the ROM ver-
sion is 2.000.
4. To cancel the ROM version check mode, press the [CHECK]
button on the remote commander while pressing the [TEXT]
button on the set.
DISPLAY OF TOC ERROR
insulatorOP mechanism section (BU-23)
Any board to pu
t
connect two jigs (extension cable J-2501-164-A) to the RF board
(CN001, 002) and Main board (CN501, 502).
SERVICE POSITION
In checking the BU section, prepare two new jigs (extension cable J-2501-164-A: 1.00 mm 26 cores).
Display Contents
TOC ERROR **** Illegal SACD disc (pirate edition)
TOC ERROR
* Not SACD (DVD disc etc.)