Philips CD931 - Block Diagram

15
BLOCK DIAGRAM
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eo eee 9 ne © ee 6 ene
ees 6 nee 2 Do ES ES ES ES NY S$ ee cD ©
DIGITAL OUT
CDM | SERVO & DECODING CIRCUIT ———
| DRAM
peep eS |
HE on
One
e
4
SCAB
TOA88O8
PHOTO DIODE SIGNAL
PROCESSOR
scaB
EFAB pcras23P
SAA7310
DECODER
XIN xin
LOOPFILTER
CURRENT
SOURCE
CHARGE
PUMP
CO MECHANISM CDM9
CAB
CAAB
WISAB ATSB
FOCUS MOTOR
RADIAL MOTOR
ay
FOCUS DRIVE
TDAB8O9
RADIAL ERROR
RE-og TL SVRD DOOS
MONITOR:
OI0DE
MC68HCOSCS:
PMCTO
SERVOuP
DIODES
4s
TURNTABLE
MOTOR
CONTROL
4]
POWER SUPPLY
RESET
Aci
16
a0
M833.
Ace
MOTOR
ORIVE
>
STB! t
: a eu
X24C08
EEPROM
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.
.
SUPPLY |
.
.
30%
é
\
TMP47C212
uP ORIVER
| CONTROL AND DISPLAY CIRCUIT
DISPLAY
2 ee © eS © ee © com
1
MOTOR é
LOADING
LOADING ASSY
TRAY
DETECTION
SWITCH
A ee 2 mee ee = ee © cme ©
———
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ml
+
oe ee ES DS SS ES SS ES SS SS TS SS TS LS AN © <A ©
-
3
VARIABLE
HEADPHONE
LL
TO FIXED
ceo D> LINE OUT
LEFT
LEFT
KI
~ TO FIXED
{> LINE OUT
RIGHT
RIGHT
eo ee eo eo eo cD SS Se See FSD 6 eS een
aren
TO
[> HEADPHONE
LEFT
.
TO
[> HEADPHONE
RIGHT
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.
ea CO
HAS1017
PCS 60041