Block Diagram - Philips AX2001 Service Manual

BLOCKDIAGRAM
R11 R12 R13
R1 R2 R3
(connected via zebra-strip)
1
DISC
TURNTABLE
MOTOR
12 10
TRACK
SERVO
9
FOCUS
SERVO
11
SLIDE
SERVO
Laser
diode
Monitor
diode
PHOTO DIODE
ARRAY
C D
F E
B A
DA23-L(N)PH
CD-DRIVE
SUPPLY/CHARGE CIRCUIT
+DC
DC_IN
(TO µP)
DC-in socket
T630mA
+
+A STAB. +A
DC/DC
+2.6V
CONVERTER
ACCU or
BATTERY +
DM_PWM
(FROM µP)
charge
BATT_LEVEL
RECH. BATT.
(TO µP)
MEASURING
CHG_DET
PART
(TO µP)
ACCU ACCU
(TO µP)
DETECT.
CHARGE
SWITCH
TEMP. TEMP
(TO µP)
DETECT.
CS 46 731
3-7
MEMBRANE-KEYBOARD & LCD
R4
LCD
RESET (FROM
SERVO DRIVER)
24
MEMBRANE
KEYBOARD
RC (FROM/TO
1)
RC-CIRCUIT
RC-SOCKET)
+2.6V
VCC2, VCCL PWRON EQSEL CDRW
LASER
LD
SUPPLY &
RFEQO
PROTECT.
MON
+2.6V
CMFB
1x
YFLAG
(TO NPC)
DIN RFFB
4x E
F
2x
B
TZA1024
HF-PREAMPLIFIER
A
C
+
D
FLEX
+DC
DCIN
H-BRIDGE
DM±
MOTOR DRIVER 2
VG VLG VR SAW
H-BRIDGE
SL±
MOTOR DRIVER 4
VG VLG VR SAW
H-BRIDGE
Focus±
MOTOR DRIVER 1
VG VLG VR SAW
H-BRIDGE
Track±
MOTOR DRIVER 3
VG VLG VR SAW
SAW
VC
DC/DC SAW SAW
VOUT CONVERTER GEN.2 GEN.1
VIN
CONST.VOLT.
CURRENT & CONTROL RESET
RF2
CHARGE
CHGSW
RS
SC111259FTA
SERVO DRIVER &
POWER MGT. IC
LCD
P TMP86C829
F
RAM LCD DRIVER ROM
RESET
CLOCK GEN. 16bit TIMER
ALU
& TIMING COUNTER
4MHz
I/O PORTS
RC
FROM/TO SUPPLY/ TO SERVO & TO HEADPHONE AMP.
CHARGE CIRCUIT POWER MGT. 8.4MHz
PORES
(FROM µP)
RESET
1
EBU
HFIN
FRONT END TIMING
INTERFACE
ERROR MOTOR SUBCODE
DIGITAL PLL
CORRECT. CONTROL PROCESS.
R1
EFM RAM PEAK
SRAM
DEMOD. ADDRESS. DET.
R2
D1
µP
CONTROL PART
INTERFACE
D2
D3
FUNCTION AUDIO SERIAL
PRE-PROC.
CONTROL PROCESS. INTERFACE
D4
SERIAL
Vref
LOOPBACK
SAA7324H
OUTPUT BITSTREAM
KILL
CD10 STAGES DAC
SL FO RA KILL
16
DM_IN DM_PWM
(FROM µP)
L.P.F.
15
SLIDE_IN SL (PWM signal)
L.P.F.
13
FOCUS_IN FO (PWM signal)
L.P.F.
14
TRACK_IN RA (PWM signal)
L.P.F.
DBB_STEP
DBB_ON
RESET
BEEP
S_MUTE
CHGON
SLEEP
WAKE
3-7
eye-pattern signal
> 800 mVpp
1
+2.6V
TB=0.5µs
AVDD
TRANSFER OF AUDIO SAMPLES VIA SERIAL INTERFACE CD10 ↔ NPC
2 5
SCLK
3 6 WCLK
left channel
4 7
DATA
servo in or
disc motor cw
YMLD
10
3V
YMCLK
not moving
YMDATA
11
0
SILD servo out or
disc motor ccw
RAB 12
-3V
SCL
SDA
SFSY
+2.6V
VCC
DRAM
+2.6V
A0...A10, D0...D3
VDD
CAS, RAS, WE, OE
DRAM INTERFACE
SBSY ENCODER DECODER
YMLD
SFSY
YMCLK
YMDATA
ZSENSE
CONTROLLER
INTERFACE
SBSY
SHOCK
SILD YFLAG CONTROL
RAB (FROM
SCL CD10)
SDA
INPUT BUFFER ATTENUATOR
SCLK YSCK
WCLK YLRCK
DATA YSRDATA
INPUT I/O OUTPUT
INTERFACE EXTENSION INTERFACE
SCLI 2-4
WCLI
SM5903BF
SDI
NPC
ZSCK
5-7 ZLRCK
ZSRDATA
LF_POW
(FROM µP)
E_KILL
MUTE RIPPLE POW.
Switch
MUTE
MUTE
CONT. FILTER SW.
(FROM µP)
VOLUME
IN A
Vref
IN B
Low-pass
boost
DBB
Switch
DBB
Beep in
BEEP
CONT.
BA3574BFS
HEADPHONE AMP.
during focus search
2,5V
9
0
TB=0.1s
-2,5V
right channel
13 servo out or disc motor cw
3V
14 not moving
servo in or
15
disc motor ccw
0
16
+2.6V
VDD
RESET
NPC_RESET
(FROM µP)
+A
VCC
RC
(FROM/TO
RC-CIRCUIT)
HEADPHONE&
RC-SOCKET
LEFT
Vref
RIGHT
1)
not on all versions