Inhaltsverzeichnis
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CDP 200
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
Blockschaltbild / Block Diagram
1400
DISPLAY ILLUMINATION
RESUME SHUFFLE
PROGRAM REPEAT
CAR
JAZZ
ROCK
+6
7400
ILLUMINATION
SUPPLY CIRC.
RAM
LCD DRIVER
ROM
CLOCK GEN.
16bit TIMER
ALU
& TIMING
COUNTER
4MHz
I/O PORTS
32,76kHz
µP TMP87CH20F
KB ILLUMINAT.
BATTERY
KEYBOARD
LEVEL DET.
+3.5 +1.2 +S
DISC
TURNTABLE
MOTOR
9
TRACK
SERVO
8
FOCUS
SERVO
10
SLIDE
SERVO
Laser
diode
Monitor
diode
Inner switch
pick up
unit
PHOTO DIODE
ARRAY
D1
D2
R1
R2
FLEX PCB
CD - Drive
D3
CDM 12.3B
FLEX PCB
GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
16,9MHz
11,3MHz
33,3MHz
7830
HFIN
PLL
VERS.PINS
µP
TIMING
FRONTEND
INTERFACE
INTERFACE
EFM
Q-CHANNEL
DIGITAL PLL
SRAM
DEMOD.
REGISTER
SUBCODE
Q-CHANNEL
CRC CHECK
ERROR
RAM
PEAK
CORRECT.
ADDRESSER
DETECTION
ERROR FLAGS
KILL
AUDIO
MOTOR
AUDIO
EBU
SERIAL DATA
CONTROL
PROCESSOR
INTERFACE
INTERFACE
SAA7345
SIGNAL PROCESSOR CD6
MOTOR
DRIVER
Vddl
7800
7801
LDon
LASER
Lo
1
SUPPLY &
L.P.F.
Hf
µP Interface
PROTECT.
+
MI
H.P.F.
R1
O6
R1
L.P.F.
L.P.F.
R2
O5
R2
L.P.F.
L.P.F.
D1
O1
D1
L.P.F.
L.P.F.
D2
O3
D2
L.P.F.
L.P.F.
D3
O4
D3
L.P.F.
L.P.F.
D4
L.P.F.
L.P.F.
TDA1302
TDA1301T
HF-AMPLIFIER
DSIC2
CDP 200
7851
µPD424400L
4Mbit DRAM
7850
7300
CONTROLLER
DATA/ADDRESS
+
MULTIPLEXER
MONITOR
+
REGISTER
CALIBRATED
CALIBRATED
REF.
READ POINTER
CURRENT
CURRENT
SOURCE
SOURCE
SOURCE
WRITE POINTER
6xOVERSAMPLING
6xOVERSAMPLING
2nd ORDER
2nd ORDER
MICROPROCESSOR INTERFACE
NOISE SHAPER
NOISE SHAPER
SHOCK DETECTOR
MUTE
MUTE
& PROCESSOR
FIR-FILTER
ATTENUAT.
DEEM1
DE-EMPHAS.
2
2
2
I
S INPUT
TIMING
I
S OUTPUT
I
S INPUT
CONTROL
DEEM2
SAA7346
TDA1305
TIMING
SHOARMA
DAC
16,9MHz
11,3MHz
Vddl
+3,5
+A
Pow-on
+S
Vreg
7950
FEED-
DC/DC
Power
BACK
CONVERTER
switch
+A
CLsaw
Reg.
LASER POW.
H-BRIDGE
CONTROL
MOTOR DRIVER 3
+A
CLsaw
5
Ref.
Slide
Slide_In
H-BRIDGE
MOTOR DRIVER 4
L.P.F.
CLsaw
+A
CLsaw
6
Focus
Focus_In
H-BRIDGE
SAWTOOTH
MOTOR DRIVER 2
OSCILLATOR
L.P.F.
Sldm±
+A
CLsaw
7
Track
Track_In
H-BRIDGE
Focus±
MOTOR DRIVER 1
L.P.F.
Track±
+A
CLsaw
MPC1715FB
TIMING
SERVO DRIVER
16,9MHz
2 - 1
GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
VOLUME
+
DSC
AMB
L.P.F.
LP-LEVEL
CONTROL
+
+
DSC
AMB
L.P.F.
HEADPHONE
SOUND
3300
CONTROL
DBB
DBB
off-mid-max
POWER SUPPLY
START-UP/SHUT OFF
+1,2
+6
+A
vreg
+µP
RESET
1250
DC-in socket
+Batt
+
Accu or
Battery
-Batt
ExtDC-On
eye-pattern signal
slide not moving
> 850 mVpp
3.5V
1
5
TB=0.5µs
TB=0.5µs
slide out
3.5V
3.5V
6
5
7
TB=0.5µs
TB=0.5µs
during focus search
slide in
(serv.step FOCUS)
2V
3.5V
8
5
TB=0.1s
TB=0.5µs
7360
1350
right
left
HEADPHONE
BA3570
AMPLIFIER
MUTE
1370
right
left
LINE OUT
CHARGE CIRCUIT
+3,5
+6
+1,2
Charge
TEMP.
CHARGE
CONT.
CIRCUIT
ACCU
DET.
2 - 2
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