Philips AZ7261 - Blockdiagram

3-13-1
CS 46 172
HF-PREAMPLIFIER
SAA7372
CD7
TDA1545A
CONT. CALIBRATION DAC
R2
D1
D2
D3
D4
R1
SCLK
WCLK
DATA
SCLK
WCLK
DATA
HFIN
RC5-in
RESET
R2
D1
D2
D3
R1
LASER
MONITOR
LDON
+3.5
DISC
Laser
diode
PHOTO DIODE
ARRAY
TURNTABLE
MOTOR
TRACK
SERVO
FOCUS
SERVO
SLIDE
SERVO
D1 D2
R2R1
D3
CD-drive
CDM 12.3
BLC
Monitor
diode
FLEX PCB
pick up
unit
slide motor
t
u
r
n
t
a
b
l
e
Inner switch
6
8
79
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
A/D-CONVERTER
LOR
SERIAL
INTERFACE
CONTROL
& TIMING
LEFT CH.
REGISTER
FREQUENCY
DIVIDER
RIGHT CH.
REGISTER
µP
INTERFACE
LCD
CONTROL PART
EBU
INTERFACE
RAM
ADDRESS.
SUBCODE
PROCESS.
MOTOR
CONTROL
OUTPUT
STAGES
ERROR
CORRECT.
LASER
SUPPLY
FRONT END TIMING
DIGITAL PLL
SRAM
EFM
DEMOD.
Vref
KILL
PRE-PROC.
FUNCTION
CONTROL
VERSATILE
INTERFACE
AUDIO
PROCESS.
PEAK
DET.
P TMP47C823F
LCD DRIVER


CLOCK GEN.
& TIMING
12bit TIMER
COUNTER
ALU




ROMRAM
4MHz
DISPLAY ILLUMINATION






CORD-RC
CIRCUIT
(not on all versions)
KEYBOARD
CD OUT
(not on all versions)
I/O PORTS
RESET
+µP
RC
SL (PWM signal)
SL FO RA
FO
(PWM signal)
RA (PWM signal)
SLIDE_IN
FOCUS_IN
DM±
Sldm±
Focus±
TRACK_IN
H-BRIDGE
MOTOR DRIVER 3
H-BRIDGE
MOTOR DRIVER 1
H-BRIDGE
MOTOR DRIVER 4
H-BRIDGE
MOTOR DRIVER 2
DC/DC
CONVERTER
FEED-
BACK
+S+1.2
+A
+A CL saw
+1.8
MPC1718
SERVO DRIVER
SAWTOOTH
OSCILLATOR
DM_IN
MOTO1
(from CD7)
+A CL saw
+A CL saw
+A CL saw
+A CL saw
CL saw
+3.5
Power
switch
Reg.
Ref.
Track±
L.P.F.
L.P.F.
L.P.F.
L.P.F.
FLEX PCB
HEADPHONE&
RC-SOCKET
RIGHT
VOLUME
CONTROL
LEFT
DC-in socket
+
ACCU or
BATTERY
+A
SUPPLY/CHARGE CIRCUIT
BATT-
BATT+
3V
0
-3V
2,5V
0
-2,5V
eye-pattern signal
> 800 mVpp
TB=0.5µs
1
during focus search
TB=0.1s
6
+3.5
MOTO1 16.9MHz
8.46MHz
DOBM
POWER
CHG_ON
BATT_LEV_SW
BATT_LEV
T_ACCU
ACCU_IN
DC_ON
PORES
MUTE
RCD
RCO
RCI
DBB
+5
CHARGE
CONTROL
BATT. LEVEL
& TEMP.
DETECTION
OVERVOLTAGE
PROTECTION
IR-RECEIVER
(not on all versions)
MUTE
(from µP)
DBB
(from µP)
RC
(from CORD-RC CIRCUIT)
ACCU_IN
BATT_LEV
BATT_LEV_SW
T_ACCU
CHG_ON
(from µP)
DC_ON
(to µP)
to µP
9
7
11
13
12
10
8
3V
0
servo in or disc motor cw
not moving
servo out or disc motor ccw
servo out or disc motor cw
not moving (f=530kHz)
servo in or disc motor ccw
13
11
10
12
DATA
WCLK
left channel
MSB
LSB
MSB
LSB
right channel
SCLK
TRANSFER OF AUDIO SAMPLES VIA SERIAL INTERFACE OF CD7CD7 → DAC
from DC/DC CONV.
2
3
4
from/to SUPPLY/CHARGE CIRCUIT
11k
LOL
IREF
DBB
DBB
Vref
+
1
+3.5 +S+1.2
POWER
BLOCKDIAGRAM