Circuit Diagrams And Layout Of Pcbs; Block Diagram - Grundig CDP75 Bedienungsanleitung

CDP 75 / CDP 110
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
Blockschaltbild / Block Diagram
1400
PROGRAM
SHUFFLE HOLD
7400
RAM LCD DRIVER ROM
CLOCK GEN. 16bit TIMER
ALU
& TIMING COUNTER
4MHz
I/O PORTS
32.76kHz
µ P TMP87CH20F
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
CD-drive
D3
CDM 12.3B
eye-pattern signal
slide not moving
> 850 mVpp
3.5V
1
5
TB=0.5µs
GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
16.9MHz
11.3MHz 33.3MHz
7830
µP
HFIN PLL VERS.PINS
TIMING
FRONTEND INTERFACE INTERFACE
EFM Q-CHANNEL
DIGITAL PLL SRAM
DEMOD. REGISTER
Q-CHANNEL
SUBCODE
CRC CHECK
ERROR RAM PEAK
CORRECT. ADDRESSER DETECTION
MUTE
ERROR FLAGS
KILL
AUDIO
DMot1 MOTOR AUDIO EBU SERIAL DATA
CONTROL PROCESSOR INTERFACE INTERFACE
SAA7345
SIGNAL PROCESSOR CD6
EYE-PATTERN SIGNAL
Vddl
7800
LDon
LASER
Lo
1
SUPPLY &
L.P.F.
+ Hf
PROTECT.
MI
H.P.F.
R1 O6
L.P.F.
R2 O5
L.P.F.
D1 O1
L.P.F.
D2 O3
L.P.F.
D3 O4
L.P.F.
L.P.F.
FLEX PCB
TDA1302
HF-AMPLIFIER
FLEX PCB
slide out
3.5V 3.5V
5 5
TB=0.5µs TB=0.5µs
CDP 75 / CDP 110
MUTE
MUTE
MUTING
KILL CONTROL
7300
SIGMA/DELTA
DAC
MODULATOR
L.P.F.
DIGITAL REF.
DEEMPHASIS SOURCE
SIGMA/DELTA
DAC
MODULATOR
L.P.F.
KILL
SCLK SCLK
SERIAL INTERFACE &
WCLK LRCK
TIMING
DATA SDAT CONFIG. REGISTER
CS4331
DUAL DAC
11.3MHz
+3.5
7801
FEED-
µ P Interface
BACK
L.P.F.
R1
L.P.F.
5
Slide
R2
L.P.F.
L.P.F.
D1
6
L.P.F. Focus Focus_In
D2 L.P.F.
L.P.F.
7
D3
Track
L.P.F.
L.P.F.
D4
L.P.F.
TDA1301T
TIMING
DSIC2
16.9MHz
slide in
3.5V
6
7
TB=0.5µs TB=0.5µs
2 - 1 GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
7312
VOLUME
UBS
L.P.F.
TDA1308
UBS
L.P.F.
3300
UBS
+A Pow-on +S Vreg +1.2
7950
Power
DC/DC
switch
CONVERTER
+A CLsaw
Reg.
H-BRIDGE
DMot1
MOTOR DRIVER 4
+A CLsaw
Ref.
H-BRIDGE
Slide_In
MOTOR DRIVER 3
CLsaw
+A CLsaw
SAWTOOTH
H-BRIDGE
OSCILLATOR
MOTOR DRIVER 2
DMot±
Sldm±
+A CLsaw
Focus±
H-BRIDGE
Track_In Track±
MOTOR DRIVER 1
+A CLsaw
MPC1715FB
SERVO DRIVER
during focus search
(serv.step FOCUS)
2V
8
TB=0.1s
1350
right
left
HEADPHONE
POWER SUPPLY
+6 +A
7400
DC-in socket
+Batt
+
Accu or
Battery
-Batt
START-UP/SHUT OFF
Vreg +µP RESET
ExtDC-On
CHARGE CIRCUIT
+3.5 +6 +1.2 Charge
TEMP. CHARGE
CONT. CIRCUIT
ACCU
DET.
2 - 2