Philips ACT7585, Service Manual

Page: 14 / 28

BLOCK DIAGRAM
3-3 3-3
PCS 107 233
TZA1024
HF-PREAMPLIFIER
SAA7324H
CD10
SM5903BF
NPC
R2
D1
D2
D3
D4
R1
SILD
RAB
SCL
SDA
SBSY
SFSY
YMLD
YMCLK
YMDATA
SILD
RAB
SCL
SDA
SFSY
SCLK
WCLK
DATA
SCLI
WCLI
SDI
HFIN
RESET
F
B
A
C
E
A0...A10, D0...D3
CAS, RAS, WE, OE
DISC
Laser
diode
PHOTO DIODE
ARRAY
TURNTABLE
MOTOR
TRACK
SERVO
FOCUS
SERVO
SLIDE
SERVO
C D
B A
E F
DA23-L(N)PH
CD-DRIVE
Monitor
diode
D
DRAM INTERFACE
A/D-CONVER
TER
SHOCK
CONTROL
CONTROLLER
INTERFACE
INPUT
INTERFACE
I/O
EXTENSION
OUTPUT
INTERFACE
YFLAG
(FROM
CD10)
YMLD
YMCLK
YMDATA
ZSENSE
YSCK
YLRCK
YSRDATA
ZSCK
ZLRCK
ZSRDATA
SBSY
SERIAL
INTERFACE
SERIAL
LOOPBACK
m
P
INTERFACE
LCD
DECODER ENCODER
CONTROL PART ATTENUATOR INPUT BUFFER
EBU
INTERFACE
RAM
ADDRESS.
SUBCODE
PROCESS.
MOTOR
CONTROL
OUTPUT
STAGES
ERROR
CORRECT.
FRONT END TIMING
DIGITAL PLL
SRAM
EFM
DEMOD.
Vref
PRE-PROC.
FUNCTION
CONTROL
BITSTREAM
DAC
VERSA
TILE
INTERF
A
C
E
AUDIO
PROCESS.
PEAK
DET.
P TMP86C829
F
LCD DRIVER
CLOCK GEN.
& TIMING
MEMBRANE
KEYBOARD
16bit TIMER
COUNTER
ALU
ROM RAM
4MHz
I/O PORTS
RC
SL (PWM signal)
SL FO RA KILL
FO (PWM signal)
RA (PWM signal)
SLIDE_IN
FOCUS_IN
DM
±
SL
±
Focus
±
TRACK_IN
+DC
SC111259FTA
SERVO DRIVER &
POWER MGT. IC
DM_IN
DCIN
DM_PWM
(FROM
m
P)
SAW VG VLG VR
SAW
Track
±
L.P.F.
L.P.F.
L.P.F.
FLEX
BEEP
CHG_ON
TEMP
DC_IN
MUTE
LF_PO
W
AC
C
U
CHG_DET
BA
T_LEVEL
DM_PWM
(T
O SER
V
O)
PORES
(T
O CD10)
NPC_RESET
(T
O
NPC)
DBB_ON
DBB_STEP
NPC_RESET
(FROM
m
P)
E_KILL
RESET
PORES
(FROM
m
P)
RESET
FROM/TO SUPPLY/
CHARGE CIRCUIT
TO SERVO &
POWER MGT.
TO HEADPHONE AMP.
FR
OM
m
P
FROM/T
O
m
P
DRAM
RC (FROM/TO
RC-SOCKET)
RC-CIRCUIT 1)
SAW VG VLG VR
H-BRIDGE
MOTOR DRIVER 2
H-BRIDGE
MOTOR DRIVER 3
H-BRIDGE
MOTOR DRIVER 1
SAW VG VLG VR
SAW VG VLG VR
H-BRIDGE
MOTOR DRIVER 4
8.4MHz
L.P.F.
1)
not on all versions
VDD VDD
AVDD
+2.6V
VCC2, VCCL
+2.6V
+2.6V
+2.6V
VCC
+2.6V
RESET (FROM
SERVO DRIVER)
YFLAG
(TO NPC)
VOLUME
DBB
CONT.
DBB_STEP
BEEP
DBB_ON
IN A
Switch
Beep in
DBB
Switch
Low-pass
boost
IN B
S_MUTE
W
A
K
E
SLEEP
tu
rntable
LASER
SUPPLY &
PROTECT.
EQSEL
DIN
PWRON
MON
+
RFEQO
RFFB
CDRW
CMFB
LD
1x
2x
SUM (A
+ B + C + D)
HEADPHONE&
RC-SOCKET
RC
(FROM/TO
RC-CIRCUIT)
BA3574BFS
HEADPHONE AMP.
VCC
+A
RIGHT
LEFT
BEEP
MUTE
SAW
GEN.2
SAW
GEN.1
RIPPLE
FILTER
POW.
SW.
Vref
Vref
4x
SUPPLY/CHARGE CIRCUIT
DC-in socket
+
ACCU or
BATTERY
+
charge
T630mA
ACCU
DETECT.
DC/DC
CONVERTER
ACCU
(TO
m
P)
TEMP
(TO
m
P)
+A
+DC
RECH. BATT.
MEASURING
PART
+2.6V
TEMP.
DETECT.
CHARGE
SWITCH
+A STAB.
DM_PWM
(FROM
m
P)
CHGSW
VC
VOUT
RS
CHG_DET
(TO
m
P)
VIN
RF2
BATT_LEVEL
(TO
m
P)
DC_IN
(TO
m
P)
RESET
SLEEP
WAKE
CHGON
S_MUTE
CONTROL RESET
DC/DC
CONVERTER
CONST.VOLT.
CURRENT &
CHARGE
LF_POW
(FROM
m
P)
MUTE
(FROM
m
P)
+2.6V
MUTE
CONT.
KILL
MEMBRANE-KEYBOARD & LCD
PLA
Y
PREV
ST
OP
NEXT
ESP
MODE
DBB
PR
OG
R11 R12 R13
R1 R2 R3 R4
1
24
GND2 PLA
Y
KEY2 GND1 KEY1 VDD
LCD
(connected via zebra-strip)
3V
0
-3V
2,5V
0
-2,5V
eye-pattern signal
> 800 mVpp
TB=0.5
m
s
1
during focus search
TB=0.1s
9
12
10
11
3V
0
servo in or
disc motor cw
not moving
servo out or
disc motor ccw
servo out or disc motor cw
not moving
servo in or
disc motor ccw
16
14
13
15
DATA
WCLK left channel
MSB
LSB
MSB
LSB
right channel
SCLK
TRANSFER OF AUDIO SAMPLES VIA SERIAL INTERFACE CD10
´
NPC
2
3
4
5
6
7
1
14
16
15
2-4
5-7
13
9
11
10 12