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— 4 —
PARTS No.
MODEL
4-214-785-5
π
W900AV: US
4-214-785-6
π
W900AV: CND
4-214-790-0
π
DR8AV: E, AR
4-214-790-1
π
DR8AV: SP
4-214-790-2
π
DR8AV: MX
4-214-790-3
π
DR8AV: EA
4-214-790-4
π
DR8AV: AUS
MODEL IDENTIFICATION
— BACK PANEL —
• Abbreviation
CND : Canadian model
AUS : Australian model
EA
: Saudi Arabia model
MX
: Mexican model
SP
: Singapore model
AR
: Argentina model
Parts No.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
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 emission,
observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output four times.
SECTION 1
SERVICING NOTE
About CD-TEXT display
This unit is provided with a simple CD-TEXT display function.
The CD-TEXT contents of 20 tracks are displayed on the fluorescent
display tube.
Since the function is simple, some special characters may not be
displayed, or may be displayed as other characters.
Содержание HCD-DR8AV
Страница 7: ... 7 This section is extracted from instruction manual ...
Страница 31: ...HCD DR8AV W900AV 43 44 7 6 SCHEMATIC DIAGRAM MAIN 1 5 SECTION Refer to page 103 for IC Block Diagrams ...
Страница 48: ...HCD DR8AV W900AV 77 78 7 23 SCHEMATIC DIAGRAM TC PANEL SECTION Page 70 Page 70 Page 82 Page 81 82 Page 69 16 ...
Страница 50: ...HCD DR8AV W900AV 81 82 7 25 SCHEMATIC DIAGRAM CD PANEL SECTION Page 78 Page 43 Page 77 78 16 ...
Страница 52: ...HCD DR8AV W900AV 85 86 7 27 SCHEMATIC DIAGRAM CD MOTOR SECTION Page 48 16 ...
Страница 54: ...HCD DR8AV W900AV 89 90 7 29 SCHEMATIC DIAGRAM JACK SECTION Page 57 65 Page 52 16 ...
Страница 91: ... 133 HCD DR8AV W900AV MEMO ...