Philips AZ 7566, Руководство по обслуживанию

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3-1 3-1
CS 46 441
TDA1548T
DAC&DSP
SERIAL
INTERFACE
VOLUME, SOUND &
MUTE CONTROL
DAC DAC
OVERSAMPLING
NOISE SHAPER
OVERSAMPLING
NOISE SHAPER
SAA7372
CD7 SM5856AF
NPC TDA1302
HF-AMPLIFIER
L.P.F.
H.P.F.
+
LASER
SUPPLY &
PROTECT.
R2
D1
D2
D3
D4
R1
O5
O1
O3
O4
SCLK
WCLK
MISC
DATA
ZSCK
ZLRCK
ZSRDATA BCK
WS
DATA
YSCK
YLRCK
YSRDATA
O6
Hf HFIN
RESET
R2
D1
D2
D3
R1
Lo
LDon Vddl LDON
A0...A9, D0...D3
CAS, RAS, WE, OE
MI
+3.5
DISC
Laser
diode
PHOTO DIODE
ARRAY
TURNTABLE
MOTOR
TRACK
SERVO
FOCUS
SERVO
SLIDE
SERVO
D1 D2
R2 R1
D3 CD-drive
CDM 12.3
BLC
Monitor
diode
FLEX PCB
pick up
unit
slide motor
tu
rntable
Inner switch
9
11
10 12
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.
1
L.P.F.
DRAM INTERFACE
A/D-CONVER
TER
SHOCK
CONTROL
CONTROLLER
INTERFACE
INPUT
INTERFACE
I/O
EXTENSION
OUTPUT
INTERFACE
YFLAG
SERIAL
INTERFACE
µ
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
KILL
Vref
PRE-PROC.
FUNCTION
CONTROL
VERSATILE
INTERFACE
AUDIO
PROCESS.
PEAK
DET.
DIGITAL FILTER / INTERPOLATION
P TMP87CH20F
LCD DRIVER
,
,
CLOCK GEN.
& TIMING
16bit TIMER
COUNTER
ALU
,,,,,,,,,
,,,,,,,,,
,,,,,,,,,
ROM RAM
4MHz
DISPLAY ILLUMINATION
,,,,
,,,,
,,,,
,,,,
,,,,
,,,,
DIGITAL OUT
(not on all versions)
I/O PORTS
RESET
RCI, RCO, RCD
+
µ
P
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 Pow-on +A
+A CLsaw
+1.8
MPC1718
SERVO DRIVER
SAWTOOTH
OSCILLATOR
DM_IN
MOTO1
(FROM CD7)
+A CLsaw
+A CLsaw
+A CLsaw
+A CLsaw
CLsaw
+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 Vol
Vor
Vcom LEFT
AMB
SOUND
FEATURE
AMB
SOUND
FEATURE
DC-in socket
+
ACCU or
BATTERY
ACCU DET.
PWM_IN
+A
SUPPLY/CHARGE CIRCUIT
BATT-
BATT+
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
+
µ
P
RC
(FROM/TO
RC-CIRCUIT)
DOBM
(FROM CD7)
AMB_ON
(FROM NPC)
AMB
(FROM NPC)
MOTO1 16.9MHz
8.46MHz
DOBM (TO DIGITAL OUT)
PO
WER
REF_ON
U_BA
TT
U_CHG
PWM_OUT
CHG_ON
PWM_IN T_A
CCU
A
CCU_IN
DC_ON PORES
MUTE
S_MUTE
DBB
+DC
OVERVOLTAGE
PROTECTION
CHARGE
CONTROL
ACCU
MEASURING
TEMP.
CONT.
AMB
AMB_ON
VOLUME
CONTROL
TREB PORES
(FROM
µ
P)
RESET
S_MUTE
(FROM
µ
P)
TREB
(FROM NPC)
DBB
(FROM
µ
P)
MUTE
(FROM
µ
P)
T_ACCU
DC_ON
ACCU_IN
PWM_OUT CHG_ON
U_CHG
U_BATT
REF_ON
FROM
µ
P
TO
µ
P
16.9MHz +LF
12
10
14
16
15
13
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 (f=530kHz)
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
FROM/TO SUPPLY/CHARGE CIRCUIT
4Mbit
DRAM
4Mbit
DRAM
,,,
,,,
RC
(FROM/TO RC-SOCKET)
KEYBOARD
KEY ILLUMIN.
RC-CIRCUIT
TO DAC&DSP/
AMB SOUND FEATURE
BLOCKDIAGRAM