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IC DESCRIPTION
IC, pPD78043GF-063
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Gf 0 | Darema
SY
A
[axe
DATA D
ou
| sm
2
| POWER | 0 | 'Hrduring POWER ONoftheunit,
a ee
ae
a ee
| is |
aTA
ee
eee
ser
a
| 9
| nse
AVSS
MS/C
AJD input of MS signal and Dolby-B or B/C select detector from DECK.
FOK/GFS
A
Serial data output to control the output port expansion IC (4094).
Serial data output to control the signal processing IC for CD.
Sub-code Q input.
System reset input.
Output to control the power of CD sircuit. "L" during CD function.
High speed control output to DECK. "H" during high speed dubbing.
Ground.
A/D input of the focus OK signal and frame sync lock state display signal from CD.
PHOTO
5
27
DI
Mechanism 3disc table position detect photo sensor signal input from CD.
A/D input of mechanism tray and base unit position detect switches from CD.
A/D input of key data from CD button.
A/D
input of key data from DECK button.
A/D input of mechanism status detect switch from DECK.
A
28
DSWwo
A/D input of mechanism status detect switch from DECK.
¥ =
Power supply terminal.
Reference voltage. (+5V)
Internal state of CD signal processing IC.
Ground.
4.19MHz clock oscillator input.
| |
ae
eal
feed
pole
a
aa:
a
eS
4.19MHz clock oscillator input.
Pee
| 0
ee
(0)
po
|
36
| 0
EMP
De-emphasis control output for CD output signal. "L" when ON.
Mechanism 3 disc table drive control output to IC203. "H" during forward rotation.
Mechanism 3 disc table drive control output to IC203. "H" during reverse rotation.
Mechanism tray drive control output to IC202. "H" during open.
Mechanism tray drive control output to IC202. "H" during open.
echanism reel table rotation detect signal input from DECK 2.
echanism reel table rotation detect signal input from DECK 1.
Output signal to mute the signal output. "H" during muting.
pate
ae
|
Bae
LDON
| Oo |
Output signal Which controls ON/OFF of CD pickup laser diode. "L" when ON.
|
eel
Ee
es
CD subcode sync SO + SI input.
Serial data input/output to and from RX.
Remote control unit received signal from RX.
~ 67 —-
Description
[=| ta ommaron Gomis GND)
O50L | 0 | _Mestanism stoi dive conve ouputo DECK. "L'wen 8
[50 | 050ri [0 | Mechanism stoi ve conse ouput o DECK 1. "t* when ON,
a
a
ee
[se [swe | 0 | Psion tor cone oupun @ECMUTE)
re
Po | Spm cnpateerapey
Pn | won [= | anv person forFt
pula
o | seenenonpatierrLaipay,
2
Output signal to mute graphic of CDG. "H" during muting. (Not used.)
80 |G
0 | iit ouput or FL spay.
- Description
When MODE is "H": Soft mute ON/OFF control. Mute is active when "H".
When MODE is "L": Attenuator level direction control. The attenuator direction is
down when "H".
QO
K
DVSS
BCKI
°
DVDD
LRCK
STN
TO
AVDDL
|
iC °
—
Test output 2. Normally "L", (Not used)
Crystal VDD. (+5V) °
External clock input. (16.9344MHz)
Crystal oscillator output.
Crystal VSS.
Double-speed mode when "H". (Connected to +5V)
AVSS
_ w
AVDDR
TO2
'XVDD
s
°
XVSS
Nv
Nn
8
&
2
Reset when "L".
Soft mute/attenuator mode select. Soft mute mode when "H".
ATCK
Attenuator level setting clock. Disabled when MODE is "H".
N
E
is
20
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