Philips AZ 7383, Service Manual

Page: 10 / 31

3-3 3-3
CS 46 464
SOUND/VOLUME
CONTROL
TC9404FN
DIG. FILTER & DAC
SERIAL
INTERFACE
µ
CON
INTERFACE
TIMING
GEN.
SAA7374GP
CD7 SM5902AF
NPC TDA1300T
HF-PREAMPLIFIER
L.P.F.
H.P.F.
+
LASER
SUPPLY &
PROTECT.
R2
D1
D2
D3
D4
R1
O5
O1
O3
O4
SCLK
WCLK
MISC
SILD
RAB
SCL
SDA
DATA
ZSCK
ZLRCK
ZSRDATA BCK
LRCK
DATA
YSCK
YLRCK
YSRDATA
O6
Hf HFIN
RESET
R2
D1
D2
D3
R1
LDon Vddl LDON
H=Laser on
MCK
A0...A9, D0...D3
CAS, RAS, WE, OE
MI
+C
DISC
Laser
diode
PHOTO DIODE
ARRAY
TURNTABLE
MOTOR
TRACK
SERVO
FOCUS
SERVO
SLIDE
SERVO
D1 D2
R2 R1
D3
VAM2103
CD-DRIVE
Monitor
diode
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F. L.P.F.
DRAM INTERFACE
A/D-CONVER
TER
SHOCK
CONTROL
CONTROLLER
INTERFACE
INPUT
INTERFACE
I/O
EXTENSION
OUTPUT
INTERFACE
VR
LO
YFLAG
YMLD
YMCLK
YMDATA
RESET
DCIN
VOUT2
VOUT1
BATM
CHG_ON
(from
µ
P)
POWER
(from
µ
P)
BATIN
DCDTB
SERIAL
INTERFACE
µ
P
INTERFACE
BS
EMP
SM
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
KILL
PRE-PROC.
FUNCTION
CONTROL
VERSATILE
INTERFACE
AUDIO
PROCESS.
PEAK
DET.
DIGIT
AL FIL
TER
A
TT CIRCUIT
DE-EMPHASIS FIL
TER
BA3574BFS
HEADPHONE AMP.
P TMP87CK20F
LCD DRIVER
,
CLOCK GEN.
& TIMING
16bit TIMER
COUNTER
ALU
RESET
(FROM DC/DC CONV.)
,,,,,,,,,
,,,,,,,,,
,,,,,,,,,
ROM RAM
4MHz
DISPLAY ILLUMINATION
1)
,,,,
,,,,
,,,,
,,,,
,,,,
,,,,
DIGITAL OUT
1)
I/O PORTS
RCI, RCO, RCD
Lo
LO LD
VDD
+3
VCC
+A
+A
+
µ
P
SL
(PWM signal)
SL FO RA
FO
(PWM signal)
RA (PWM signal)
SLIDE_IN
FOCUS_IN
DM ±
Sldm
±
Focus
±
TRACK_IN
VR +3 VG
MPC17A50VM
SERVO DRIVER
SAWTOOTH
OSCILLATOR
LOW VOLTAGE
DETECTOR
DM_IN
VLG VR VG
PWM_DM
(FROM
µ
P)
CLsaw VG VLG VR
CLsaw
SAW_CLOCK
(FROM DC/DC CONV.)
Track
±
L.P.F.
L.P.F.
L.P.F.
FLEX PCB
HEADPHONE&
RC-SOCKET
RIGHT
LEFT
DC-in socket
+
ACCU or
BATTERY
EXT. DC
DOWN-
CONV.
3.2V
DC/DC
UP-CONV.
ACCU DET.
PWM_IN
BATM
SUPPLY/CHARGE CIRCUIT
+3
RC
(FROM/TO
RC-CIRCUIT)
DOBM
(FROM CD7)
MOTO1 16.9MHz 4MHz 16.9MHz DOBM (TO DIGITAL OUT)
PO
WER
REF_ON
U_BA
TT
U_CHG
PWM_OUT
CHG_ON
PWM_IN T_A
CCU
A
C
CU_IN
PORES
MUTE
S_MUTE
DBB
ACCU
MEASURING
TEMP.
CONT.
DBB/LEVEL
(T
O SOUND CONT
.)
TREB
(T
O SOUND CONT
.)
NPC_RES
(FROM µ P)
TREB (FR
OM NPC)
DBB/LEVEL (FR
OM NPC)
DBB (FR
OM
µ
P)
BEEP (FR
OM
µ
P)
RESET
PORES
(FROM µ P)
RESET
T_ACCU
ACCU_IN
PWM_OUT REF_ON
U_CHG
FROM
µ
P
TO
µ
P
+A +DC +3
DCTBD
FROM/TO SUPPLY/CHARGE CIRCUIT
DRAM DRAM
1)
,,
,,
RC
(FROM/TO RC-SOCKET)
RC-CIRCUIT
1)
CLsaw VG VLG VR
H-BRIDGE
MOTOR DRIVER 4
H-BRIDGE
MOTOR DRIVER 3
H-BRIDGE
MOTOR DRIVER 1
CLsaw VG VLG VR
CLsaw VG VLG VR
H-BRIDGE
MOTOR DRIVER 2
MPC1825AVM
DC/DC CONVERTER
BATTERY CHARGER
STEP-UP
DC/DC CONV.
CHARGE
AMPLIFIER
CHARGE
PUMP
OSC1
OSC2
REGULATOR
CHARGE
PWM2
ERROR AMP
SYSTEM
CONTR
OL
tu
rntable
BEEP
16.9MHz
RO
ANAL.
FILTER
OUTPUT
CIRCUIT
ANAL.
FILTER
OUTPUT
CIRCUIT
MODULA
TION CIRCUIT
OSC
.
KEYBOARD
SAWTOOTH
PWM1
ERROR AMP
LOW BATT DET.
DC-IN DETECT
BANDGAP REF.
SUB REF.
LOW VCPU DET.
+DC
VG
+
µ
P
TREB
MUTE
DBB
CONT.
RIPPLE
FILTER
TREB
L.P.F.
Vref
LASER
POWER DOWN
CONVERTER
1)
1)
not on all versions
+3
LOBAT
SAW_CLOCK
(TO SERVO DRIVER)
3V
0
-3V
2,5V
0
-2,5V
eye-pattern signal
> 800 mVpp
TB=0.5
µ
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 OF CD7 AND NPC CD7
→
NPC
NPC
→
DAC
2
3
4
5
6
7
1
14
16
15
13
9
11
10 12
BLOCKDIAGRAM