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Parts and PCB changes
Entered with A84-118 dated 1984-04-20
CD100/00/05 SERVO PCB
PCB with Code
Expired, added, modified
C2213 added (100nF)
C2259 changed to 15nF
C2251 changed to 470nF
C2244 changed to 560pF
R3328 changed to 270k
R3376 changed to 5k6
R3247 added
C2251 changed to 220nF
C2244 changed to 680pf
C2259 changed to 22nF
R3328 changed to 330k
R3376 changed to 4k7
Trimming potentiometer R3315 changed to 15k fixed
resistor.
Introduction of changed PCB layout 4 and service print.
C2217 changed to 3.3µF
C2218 changed to 15nF
R3255 changed to 22k
R3257 changed to 27k
R3260 changed to 56 k
R3261 changed to 56 k
D6253. BZX79/C7V5 added.
Supply voltage - 2 A goes directly from the servo PCB to the
lid switch.
C2251 changed to 100nF
R3375 changed to 68k
R3315 changed to 27k
Reason
Improving focusing startup.
Improved stability.
Protection of the Demod IC against
electrostatic discharges.
Faster capture.
Improve reading of the CD table of contents
DC offset setting is dropped.
Prevent distortion of the first second of a
track on some CDs. See Chapter 12
(Additional Information).
The two connectors on the display PCB are
no longer available (reduce cost).
Improve reading of the CD table of contents
Improve DC offset.
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