Philips AX7201, Service Manual, Page: 13 / 24

3-6 3-6
AN8399SA
HF-PREAMPLIFIER
RESET
MCLK
MLD
MDATA
BLKCK
STAT
MCLK
EEPROM DATA
DISC
Laser
diode
PHOTO
DIODE ARRAY A+C=PD1
B+D=PD2
TURNTABLE
MOTOR
TRACK
SERVO
FOCUS
SERVO
SLIDE
SERVO
B
A
E F
KSM1000
CD-DRIVE
Monitor
diode
A/D-CONVER
TER
INTERPOLATION
SUBCODE
SYNC
EFM-DEMODULATION
DIGITAL ATTENUATION
SOFT MUTING
DIGITAL FILTER
4 x OVERSAMPLING
TIMING
OFTR
1-BIT DAC
DIGITAL
INTERFACE
P TMP86PM29AU
LCD DRIVER
CLOCK GEN.
& TIMING
16bit TIMER
COUNTER
ALU
ROM RAM
4MHz
I/O PORTS
FOP
FOM TRP
TRM TRVP
TRVM SPOUT
SPbrk OUTR OUTL
TR
±
SLD
±
F
±
T
±
SL
±
SPOUT, SPbrk
+A
BH6541KV
PWM DRIVE
FO
±
PVCC
+2.6
VCC 7402
ADPVCC
(FROM PWM DRIVER)
U_OUT
V_OUT
W_OUT
FLEX
TREBLE
CHG_PWM
TEMP
DC_IN
MUTE
LF_PO
W
KEY1 KEY2
CHG_ON
CHG_DET
BA
T_LEVEL
BEEP
DBB_ON
DBB_STEP
M_nRST
nPSM
(TO PSM CONT.)
GCTL
(TO HF-PREAMP.)
RESET
FROM/TO SUPPLY/
CHARGE CIRCUIT
FROM/TO
PWM-DRIVER
TO HEADPHONE AMP.
FR
OM/T
O
µ
P
FR
OM/T
O
µ
P
FR
OM/T
O
µ
P
DRAM
EEPROM
KEYBOARD
H-BRIDGE
MOTOR DRIVER 1
SPUIN
SPVIN
SPWIN
BRUSHLESS
MOTOR DRIVER
H-BRIDGE
MOTOR DRIVER 3
H-BRIDGE
MOTOR DRIVER 2
16.9MHz
VDD NRST 7802
AVDD 7403
+1.8V
+3.3V +
µ
P
VCC 7801
+2.6V +2.6V
VCC
+2.6V
VCC 7800
+2.6V
VCC 7401
+2.6V
LASER
CONTROL
VCC 7804 LDOFF
MUTE1 MUTE2
FPG
MON
A
RFOUT
FBAL
RFN
LD
MN662786SB
DIGITAL SERVO & CD-DECODER
VCC2 7306
HEADPHONE&
RC-SOCKET
1300
RCD
A
T
A
RCCLK
SUPPLY/CHARGE CIRCUIT
1201
DC-in socket
+
+
T700mA
DC/DC
CONVERTER
TEMP
+A
CHARGE
CIRCUIT
+3.0V
+2.6V
+3.3V
TEMP.
DETECT.
+A STAB.
CHG_PWM
CHG_ON
CHG_DET
BATT_LEVEL
DC_IN (TO
µ
P)
MUTE1
MUTE2
EXTERNAL
BATTERY
RECHARG.
BATTERY
+
T700mA
MUTE
(FROM
µ
P)
GCTL
(FROM
µ
P)
VREF
FBAL
B
C
D
+
–
RFIN
HF-EQ
ARF
–
F
+
E
PD1
PD2
PD1
PD2
F
E
AREF
AREF
FG
INA
NRFDET
OFTR
nPSM
(FROM
µ
P)
OFT
TEOUT TE
FEOUT
DET
FE
BDO BDO
3TOUT RFENV
TBAL
TBAL
ARF
AGC
NRFDET
B. GAP
3TENV
BDO
SERVO PROCESSING
OUTPUT PORTS
PWM-OUTPUTS
ADPVCC
(TO DIG. SERVO)
DE-INTERLEAVE
CIRC ERROR CORRECTION
INTERNAL
16K SDRAM
PSM
CONTROL
ANTI-SHOCK MEMORY
CONTROLLER
PRE-DRIVE
PRE-DRIVE
CHARGE
PUMP
PVCC/2
MONITOR
MUTE
PRE-DRIVE
PRE-DRIVE
DRIVER LOGIC
BOOST
A
1
2
B
BEEP
PWSW
MUTE VREF
BST
AGC
TA2131FL
HEADPHONE AMP.
DSL
PLL / VCO
INPUT
INB
LPF1
TREBLE
BSTNF1
BSTSW
TREB.
CONT.
TREB.
CONT.
PWSW
+DRIVE
+DRIVE
(FROM PSM CONT.)
DBB_ON
BEEPIN
DBB
CONT.
AGCIN
BSTOUT
BSTNF2
LPF2
OUTA (LEFT)
OUTB (RIGHT)
BEEP
CONT.
DBB_STEP
LF_POW
BEEP
+A
VCC1
+2.6V
+2.6V
µ
P
INTERFACE
RCW
AKEUP RCCLK
RC-CIRCUIT
SLPSW
10kHz
10kHz
RCD
A
T
A
2
C
D
eye-pattern signal
> 800 mVpp
TB=0.5
µ
s
1
1
3V
0
moves outside
not moving
moves inside
2
2
3
3
BLOCKDIAGRAM