Sony ZS-Y2L Service Manual ▷ View online
13
ZS-Y2L
SECTION 5
DIAGRAMS
•
Note for Printed Wiring Boards and Schematic Diagrams
Note on Schematic Diagram:
•
All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
•
All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
• C
: panel designation.
• A
: B+ Line.
• B
: B– Line.
• H
: adjustment for repair.
•
Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
no mark : FM
supply from battery terminal.
no mark : FM
〈〈
〉〉
: MW
[ ]
: LW
(
) : CD PLAY
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
•
Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Circled numbers refer to waveforms.
•
Signal path.
F
: FM
f
: MW/LW
J
: CD PLAY (ANALOG OUT)
c
: CD PLAY (DIGITAL OUT)
j
: LINE IN
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
• W
: indicates side identified with part number.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
14
ZS-Y2L
•
Circuit Boards Location
MAIN board
KEY (VOL) board
H/P board
POWER board
BATT (R) board
DOOR SW board
JACK board
BATT (L) board
KEY (OPEN) board
KEY (POWER) board
LCD board
TU board
CD board
15
15
ZS-Y2L
ZS-Y2L
5-1. BLOCK DIAGRAM – CD SERVO SECTION –
A
B
D
E
F
C
I-V AMP
DETECTOR
12
11
17
18
26
SL+
SL–
F–
F+
T+
T–
SPINDLE
MOTOR DRIVE
M701
(SPINDLE)
S701
(LIMIT)
SLED
MOTOR DRIVE
27
M702
(SLED)
FOCUS
COIL DRIVE
TRACKING
COIL DRIVE
SP+
SP–
3
25
9
19
FIN
TIN
SLIN
SPIN
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC702
RF AMP, FOCUS/TRACKING SERVO,
DIGITAL SIGNAL PROCESSOR,
CLV SERVO, D/A CONVERTER
IC701
LD
PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSM-213RAP)
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
2
1
M
M
7
MUTE
AUTOMATIC
POWER
CONTROL
Q701
27 CD-DOUT
17 CD-WRQ
28 CD-CLK
23 CD-CE
26 CD-DIN
22 CD-RES
25 CD-FSEQ
24 CD-DRF
11
CD-DOOR
S418
A
SYSTEM CONTROLLER
IC802 (1/2)
R-CH
: CD PLAY (ANALOG OUT)
CD L-OUT
B
CD DOOR
R-ch is omitted due to same as L-ch.
SIGNAL PATH
APC
FIN2
FIN1
LDD
LDS
TIN2
TIN1
RF
10
9
80
7
79
4
8
EFMIN
HFL
AGC
PH(RFENV)
FE
TE
VREF
CONT1
FSEQ
CONT4
DRF
RES
DI
CE
CL
WRQ
DO
XOUT
XIN
LCHO
RCHO
3
67
TDD
TD
FD
SP
SL
31
72 25
66
63 61 62
49
48
65 64
42
45
RF AMP, FOCUS/TRACKING SERVO,
DIGITAL SIGNAL PROCESSOR,
CLV SERVO, D/A CONVERTER
IC701
X701
16.9344MHz
CLV,CAV
CONTROL
PLL
VCEC
SWITCH
ERROR
CORRECTION
AUDIO CD
A/D
CONVERTER,
SERVO
PROCESSOR
FRAME SYNC
DETECT,PROTECT
INSERT
EFM DECODER
INTERPOLATION
MUTE
&
ATTENUATION
DEEMPHASIS
8FS
DIGITAL
FILTER
&
1-bit DAC
LPF
SLICE
LEVEL
CONTROL
GENERAL
PURPOSE
PORT
COMMAND
INTERFACE
INTERFACE
CLOCK
GENERATOR
D/A
CONVERTER
PH/BH
20
FDD
SPDO
SLDO
21 22 23
+
+
+
: CD PLAY (DIGITAL OUT)
DOUT
39
OPTICAL
DIGITAL
OUT (CD)
CD LID OPEN/CLOSE
DETECT
(
)
LED DRIVE
Q391
D805
IC391
(Page 17)
(Page 17)
16
16
ZS-Y2L
ZS-Y2L
5-2. BLOCK DIAGRAM – TUNER SECTION –
R COUNT
2
24
4
7
20
21
FM
RF AMP
FM
MIX
FM
OSC
FM IF
AMP
IF
BUFFER
AF
BUFFER
AF
AMP
MUTE
STEREO/
MONO,
FM/AM
FM/AM
AM IF
AMP
FM
DET
AM
DET
DET
6
FM
RF-IN
RF-IN
22
AM
RF AMP
Q14
AM
MIX
AM
RF-IN
RF-IN
MIX-OUT
OSC
-OUT
CF2
FM/AM PLL
IC2
CF4
FM
RF-OUT
RF-OUT
10
QUAD
FM
IF-IN
IF-IN
12
15
11
L-OUT
MPX
-IN
-IN
R-OUT
13
AM
IF-IN
IF-IN
LPF1/BAND
AM OSC
FM OSC
FM/AM RF AMP, MIX, OSC,
FM/AM IF AMP, DET, MPX
IC1
L2
FM FREQUENCY
COVERAGE
CT1, L1
FM TRACKING
T1
AM IFT
LOW-PASS
FILTER
LOW-PASS
FILTER
• SIGNAL PATH
: FM
: MW/LW
X1
75kHz
CT3
L1
FM RF
XOUT
XIN
AM IN
IF IN
ST
-IND
LP-OUT
LP-IN
FM IN
20
19
11
12
18
MW/L
W
6
CT1
D1
L4
MW/LW
OSC
L2
FM OSC
LEVEL
DET
14
LPF2/MO-ST
AM
OSC
BUFFER
BUFFER
SWALLOW
COUNTER
UNIVERSAL
COUNTER
CCB
INTERFACE
REFERENCE
DIVIDER
UNLOCK
DETECT
12 BIT
PROGRAMMABLE
DIVIDER
PHASE
DETECTOR/
CHARGE PUMP
SHIFT REGISTER & LATCH
1/2
BAND
DI
CL
CE
DO
DET
-OUT
ANT1
FM TELESCOPIC
ANTENNA
PD
IF-OUT
ST
-IND
2
3
1
4
10
BAND
7
MO/ST
13
8
17
16
17
18
16
19
CT5
D2
VT B+
D3
(1/2)
D3
(2/2)
AM HIGH
CUT
SWITCH
Q12
T1
AM IF
Q42
Q41
RADIO
+6V
Q41, 42
MW SWITCH
L3-1
MW
L3-2
LW
L3
MW/LW
FERRITE-ROD
ANTENNA
MW
TRACKING
CT3, L3-1
LW
TRACKING
CT5, L3-2
LW
SWITCH
Q44
LW SWITCH
Q43
• R-ch is omitted due to same as L-ch.
R DATA
R CLOCK
R CE
R-CH
D
R MUTING
TU L-OUT
C
CONSTANT
CURRENT
Q61
T2
FM IFT
T2
FM IF
R DATA, R CLOCK, R CE,
R COUNT, R MUTING
L4
LW FREQUENCY
COVERAGE
MPX
ST
IND
9
(Page 17)
(Page 17)
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