Block Diagram - Philips AZ1050 Service Manual

BLOCK DIAGRAM

TUNER BOARD
V A V B
Stab Stab
FM-IF 1 FM-IF 2
FM-RF
TELESCOPIC
ANTENNA
10,7 MHz 10,7 MHz
21 13 11 9 7
A
16
FM FM
IF1
frontend Mixer
FM-Osc.
FM
23
Osc.
AM/FM
Indicat.
AM-Osc.
24 AM
AFC
Osc.
FERRITE
ANTENNA
AM-RF
18 AM IF
AM AM AM
Frontend Mixer Det.
B
C
AGC
AFC
STABILIZER
12
V A
Stab
8
V B
Stab
25 6 14 15 10 20
AM-IF 1 AM-IF 2
Vcc
468kHz 468kHz
V A V B
Stab Stab
DISC
DISC
MOTOR
FLEX WIRE
Inner
switch
pick up
unit
CD-drive
CD 97 DA11 CD94V5T1
1006
MAINS-SOCKET
PCS 104 242
5-1
AM/FM
switch
7102
Discr.
VCO
LF filter
5 28 29 27
1101
2 2
left left
5
FM Stereo 3
right
IF2
Det. Decoder
stereo 1
right
30
+A (Tuner)
Vcc
+A (FM)
26 1
tuning indicator
3
152kHz, 50mV
5V pp
0V
stereo mono stereo
7101
RADIO IC
TEA 5711T
TRACK
SERVO
FLEX WIRE
FOCUS
SERVO
SLIDE
SERVO
Focus search
Laser Service step 2
diode
+ 2V
-
Monitor
diode
0.3s
PHOTO DIODE
ARRAY
C C C
B B B D D D F F F
E
A A A
TAPE TRANSPORT
right
PLAY
left
permanent
magnet N S
erase head
MOTOR
on /off
- +
(for /01/11 only) 5001
1007
1 VOLTAGE
SELECTOR
2
Th. 115˚C
5
4
3
+
BATTERY COMPARTMENT
(R20)
6 x 1.5V
1900
FRONT BOARD
5
KEY
+B (CD)
GND
RC5
RC5'
1
COMBI BOARD
1201
5 1 5
Tuner L
1901
Tuner R
+A to/from
(Tuner)
source switch
+A (FM)
1
CD - PART
1810
1 Disc -
Disc +
MOTOR DRIVER
PWM
DISC
Inner Switch Inner Switch
7803
Slide +
SERVO PROCESSOR
18
SLIDE SLIDE
M62475
Slide -
4V
6
16
SERVO DRIVER
30
FOCUS FOCUS
1811
15
15 TRACK TRACK
+Laser
E 4
+
E - F
F
5
-
B+D
1
A+B+C+D
40 HF
HF
A+C 2 eye-pattern
Vcc
Monitor 36
REF
ALPC
+Laser
-
7854 20
Laser
+ +A (CD)
Track -
28
Vcc
Focus +
21 29
Track +
Focus -
+B
1 (CD)
REC/PB - AMPLIFIER
Bias Oscillator
Rec
1626
+B (TAPE)
Pb
Rec
7625 SOURCE
ALC
Rec/Pb SWITCH
Amplifier
AN7318S
+B (TAPE)
CD
CD
1601
Tape
Rec Rec Pb Pb
1 1626
1626 1626
FM
Pb
Pb Rec
Tuner
AM
Rec Pb
4
Rec Feedback
Rec
+A
1204
CD
3
+A
+A Tape
(TAPE)
FM
1
+A
AM
4x 1N4002
1202
6250 6253
1
!
2
6251 6252
1203
+Battery
2
1
5-1
1820
REPEAT SHUFFLE
ALL
PROGRAM
1814
1 11
1 11 1812
+B (CD)
RESET
12 1, 35-40
39
+M V DD
reset +
32
-
16 V SS
7800
watchdog
MICRO PROCESSOR 13
+M
TMP47C422F
door
27
30 4.23MHz
CD Synchro
X in
8
23
7801
5 DECODER 6
reset
M65824 5803
DISC MOTOR Clock 8
PWM 33 Inner Switch Generator
10
ext. DAC 34 8.46MHz ext. DAC (opt.)
only
40
TB 2us/Div l/r clk L/R CLK
left 37 data
DAC
right
DSCK
39
audio
processor
18
flags
error
27 motor
PWM control
control
HF PLL digital EFM
19
frontend PLL demod.
42
V DD analog
23
V DD logic
TB=0,5 us/DIV
+B (CD) 22
V DD 1
28
V DD 2
+Laser
1 29
+M
POWER STAGE
+A (on) +A
1250
soft
Rec
on/off 7300
TA8227P
VOLUME
on/off
3300
1350
DBB
to 1201
+A +B +A +A +A
(on) (Tape) (CD) (FM) (Tuner)
CD
Tape
FM
AM
1809 1808
2 2 1807
door
switch
1 1
TDA1311A/N2
2 8
D/A
3
6
1 D/A
HEADPHONE
p
1302
1301 -
Left
- 4
+ 4Ω
LEFT +
-
+
RIGHT
-
1
Right
+ 4Ω
EVA Blockdiagr., 160398