Denon DCD-860 Service Manual page 25

CXA1081S Terminal Function
Terminal DC voltage i i
Symbol! (V)
Terminal
No
1
Terminal Function
input terminal of capacitance coupled RF summing amplifier output
Pee aoe
Terminal for RF summing amplifier output. Check point of Eye pattern
fo | Feedback input terminal of RF summing amplifier,
P-sub/N-sub shifting terminal for Laser Diode (LD). (DC voltage: at N-sub.)
Output terminal of APC (Automatic Power Contro!) LD amplifier. (DC voltage: at N-sub, PD opened.)
Input terminal of APC (Automatic Power Control) PD amplifier. (DC voltage: opened.)
Reverse input terminal of RF |-V amplifier (1). Receives an input current through A + C terminals of photo diode.
Reverse input terminal of RF |-V amplifier (2). Receives an 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 !-V amplifier.
Receives an input current through F terminal of photo diode.
7
RFI
RFO
RF(-)
P/N.
LD
Cc
F
Reverse input terminal of E !-V amplifier.
Receives an input current through E terminal of photo diode.
Output terminal of E I-V amplifier.
Feedback input terminal of E !-V amplifier. For gain controlling of E I-V amplifier.
Vevo Output terminal of DC voltages (Vcc + Vee)/2.
FO
0
2
TE
_— -
Input terminal of capacitance coupled detect bottom hold output
Output terminal of defect bottom hold.
At + dual-power supply: Becomes negative power supply terminal.
At mono-power supply: Becomes GND.
1.
1.
|Fe |
DEFECT
17
Bias terminal for non-reverse side of focus error amplifier.
For CMR controlling of focus error amplifier.
VTEO
Connecting terminal for MIRR hold capacitor. Non-reverse input terminal of MIRR comparator.
At + dual-power supply: GND.
At mono-power supply: GND (Vee).
fee | Input terminal of auto-asymmetry control
Output terminal of EFM comparator. (DC voltage: Connect a 10 kQ load resistance.)
Output terminal of focus OK comparator. (DC voltage: Connect a 10 kQ load resistance.)
-2.5(D GND) | ON/OFF shifting terminal for laser diode (LD). (DC voltage: At LD ON.)
f25 00 Positive power supply terminal.
27
28
LD ON
al
| 0 |
ae
eae
| 0 |
fires
He
is
iO
poe]
me
a]
il
es
Ros
| 0 |
ers
ieee
id
faa stl
pene!
nao
iad
fee
Cc2
CCi-
VEE
FE
TE
CP
CB
| TON |
25