Blockdiagram - Philips AX7201 Service Manual

BLOCKDIAGRAM

DISC
TURNTABLE
MOTOR
3
TRACK
SERVO
2
FOCUS
SERVO
SLIDE
SERVO
Laser
diode
Monitor
diode
PHOTO A+C=PD1
DIODE ARRAY B+D=PD2
A
E B D
KSM1000
C
CD-DRIVE
SUPPLY/CHARGE CIRCUIT
1201
DC-in socket
T700mA
+
+A STAB.
DC/DC
CONVERTER
T700mA
+ +
CHARGE
CIRCUIT
EXTERNAL RECHARG.
BATTERY BATTERY
TEMP.
DETECT.
3-6
+DRIVE
PSM
nPSM
(FROM µP)
CONTROL
+2.6V +2.6V
7804 LDOFF VCC VCC SLPSW
LASER
NRFDET
LD
CONTROL
B. GAP AGC OFTR
BDO
MON
VREF
3TENV
GCTL
(FROM µP)
PD1 A
+
PD1 C
–
PD2 B
+
PD2 D
+DRIVE
F F
(FROM PSM CONT.)
–
E E
VCC
FLEX
F
AN8399SA
HF-PREAMPLIFIER
+A +2.6
PVCC VCC
H-BRIDGE
F±
MOTOR DRIVER 1
DC_IN (TO µP)
H-BRIDGE
T±
MOTOR DRIVER 2
+A
+2.6V
H-BRIDGE
SL±
+3.0V
MOTOR DRIVER 3
+3.3V
U_OUT
V_OUT
CHG_ON
BRUSHLESS
W_OUT
MOTOR DRIVER
CHG_PWM
SPUIN
BATT_LEVEL
SPVIN
SPWIN
DRIVER LOGIC
CHG_DET
CHARGE
PUMP
TEMP
BH6541KV
PWM DRIVE
moves outside
eye-pattern signal
> 800 mVpp
3V
2
not moving
1
3 moves inside
0
TB=0.5µs
+1.8V
7801 7802 VDD
NRFDET
OFTR OFT
MN662786SB
BDO BDO
DIGITAL SERVO & CD-DECODER
3TOUT RFENV
1
ARF DSL
ARF
PLL / VCO
RFIN
INTERNAL
RFOUT
HF-EQ 16K SDRAM CIRC ERROR CORRECTION
RFN
FEOUT FE
10kHz
INPUT
TEOUT TE
10kHz
FBAL
SERVO PROCESSING
TBAL
FBAL
OUTPUT PORTS
TBAL INTERFACE
PWM-OUTPUTS
FOP TRP TRVP SPOUT
FOM TRM TRVM SPbrk
ADPVCC
(FROM PWM DRIVER)
7402
FO±
PRE-DRIVE
TR±
PRE-DRIVE
SLD±
PRE-DRIVE
SPOUT, SPbrk
PRE-DRIVE
FG
MUTE1
MUTE
MUTE2
PVCC/2
ADPVCC
(TO DIG. SERVO)
MONITOR
3-6
7403
P TMP86PM29AU
RAM
+3.3V +µP
RESET
CLOCK GEN.
& TIMING
4MHz
nPSM
16.9MHz
(TO PSM CONT.)
M_nRST
NRST
MCLK
MLD
RESET
MDATA
BLKCK
µP
STAT
TIMING
INTERFACE
FROM/TO SUPPLY/
CHARGE CIRCUIT PWM-DRIVER
INTERPOLATION
SUBCODE
SYNC
EFM-DEMODULATION
KEYBOARD
+2.6V
DE-INTERLEAVE
VCC 7800
ANTI-SHOCK MEMORY
DRAM
CONTROLLER
DIGITAL ATTENUATION
SOFT MUTING
DIGITAL FILTER
4 x OVERSAMPLING
DIGITAL
1-BIT DAC
OUTR OUTL
7306
TREB. INA
CONT. A
B
TREB.
INB
CONT.
TREBLE
LPF1
1
DBB_ON
BSTNF1
DBB
CONT.
DBB_STEP
BSTSW
BOOST PWSW
PWSW
LF_POW
BEEP BEEPIN
BEEP BEEP VREF
CONT.
TA2131FL
HEADPHONE AMP.
+2.6V
AVDD
LCD DRIVER ROM
+2.6V
VCC 7401
16bit TIMER
EEPROM
ALU
COUNTER
MCLK
EEPROM DATA
I/O PORTS
GCTL
(TO HF-PREAMP.)
FROM/TO TO HEADPHONE AMP.
RC-CIRCUIT
+2.6V +A
1300
VCC1 VCC2
OUTA (LEFT)
OUTB (RIGHT)
AGCIN
+2.6V
BST
HEADPHONE&
DET
AGC
RC-SOCKET
BSTOUT
2
BSTNF2
AREF
LPF2
MUTE
MUTE
(FROM µP)
AREF