Denon DCD-3520 Service Manual page 29

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CXA1081S Terminal Function
Terminat
No.
Terminal
; Symbol
OC
voltage
(Vv)
Terminal
Function
RFI
Input terminal of capacitance coupled RF summing amplifier output.
| RFO
i
i ie
Terminal for RF summing amplifier output.
Check point of Eye pattern.
+
t
+—
Feedback input terminal of RF summing amplifier.
RF(-)
t
PIN
+.
P-sub/N-sub shifting termina! for Laser Diode (LD).
(DC voltage: at N-sub.)
+
i
LO
+t
Output terminal of APC (Automatic Power Control) LO amplifier.
(DC voltage: at N-sub, PD opened.)
PO
Input terminal of APC (Automatic Power Contro!) PD amplifier. (OC voltage: opened.)
+
|
:
Reverse input terminal of RF I-V amplifier (1). Receives a input current through A +C
terminals of photo
diode.
Reverse input terminal of RF IV amplifier (2). Receives a input current through B + D terminals of photo
diode.
At + dual-power supply: Becomes GND.
At mono-power supply: Becomes VR. (connect to pin 14.)
Reverse input terminal of F I-V amplifier.
Receives a input current through F terminal of photo diode.
Reverse input termina! of € |-V amplifier.
Receives a input current through E terminal of photo diode.
Output terminal of E |-V amplifier.
—}-—
Feedback input terminal of E 1-V amplifier.
For gain controlling of E 1-V amplifier.
—+-
; Output terminal of DC voltages (Voc + VeE)/2.
Input terminal of capacitance coupled defect bottom hold output.
Output terminal of defect bottom hold.
At + dual-power supply: Becomes negative power supply terminal.
At mono-power supply: Becomes GND.
Bias terminal for non-reverse side of focus error amplifier.
For CMR controlling of focus error amplifier.
Output terminal of focus error amplifier.
Output terminal of tracking error amplifier.
Output terminal of MIRR comparator,
(DC voltage: Connect a 10 kQ load resistance.)
Connecting terminal for MIRR hold capacitor.
Non-reverse input terminal of MIRR
comparator.
Connecting terminal for defect bottom hold capacitor.
At + dual-power supply: GND.
At mono-power supply: GND (Vee).
Input terminal of auto-asymmetry control.
Output terminal of EFM comparator. (DC voltage: Connect a 10 k& toad resistance.)
Output terminal of focus OK comparator.
(DC vottage: Connect a 10k
load resistance.)
ae
ON/OFF
shifting terminal for laser diode (LD).
{DC voltage: At LD ON.)
Positive power supply terminal.
29

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