Sony ZS-YN7L Service Manual ▷ View online
13
ZS-YN7L
Adjustment and Connecting Location:
L4
LW Frequency Coverage Adjustment
L2
FM Frequency Coverage Adjustment
MW Tracking Adjustment
L3-1
CT3
LW Tracking Adjustment
CT5
L3-2
FM Tracking Adjustment
T1 AM IF Adjustment
T2 FM IF Adjustment
L1
CT1
CT1
TP
(VT)
TP
(GND)
TP
(ANT)
– TU Board (Component Side) –
– TU Board (Conductor Side) –
14
ZS-YN7L
CD SECTION
Perform all CD section check in the test mode.
HOW TO THE SET INTO CD TEST MODE
1. Press the [OPERATE] button to turn the power on.
2. Select CD function.
3. Press the
2. Select CD function.
3. Press the
x
button.
4. Set test mode by momentarily shorting both of TAP (TEST A)
on the MAIN board to enter the CD test mode.
5. Press the
u
button, and press the
x
button to enter the
STOP2 mode.
Note:
When the following figure is displayed accidentally, release from
the CD test mode and redo operation.
the CD test mode and redo operation.
6. To release the CD test mode, press the
x
button, and turn the
power off.
Checking Location:
TRAVERSE CHECK
1. Connect an oscilloscope to TP (TE) and TP (VC) on the CD
board.
2. Insert the disc (PATD-012). (Part No.: 4-225-203-01)
3. In the STOP2 mode, press the
3. In the STOP2 mode, press the
u
button to enter the FOCUS1
mode.
4. Confirm that the center of the oscilloscope waveform is at 0 V.
5. Confirm that the oscilloscope waveform Vp-p value is at 0.35
5. Confirm that the oscilloscope waveform Vp-p value is at 0.35
to 1.1 V.
FOCUS BIAS CHECK
1. Connect the oscilloscope to TP (RF) and TP (VC) on the CD
board.
2. Insert the disc (PATD-012). (Part No.: 4-225-203-01)
3. In the STOP2 mode, press the
3. In the STOP2 mode, press the
u
button two times to enter
the ALL SERVO mode.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape (
A good eye pattern means that the diamond shape (
◊
) in the
center of the waveform can be clearly distinguished.
•
RF signal reference waveform (eye pattern)
88
LCD display:
82
LCD display:
81
LCD display:
– MAIN Board (Conductor Side) –
TAP
(TEST A)
CN805
IC301
CN804
CN803
CN904
F-
LCD display:
VOLT/DIV: 0.2 V (with the 10:1 probe in use)
TIME/DIV : 1 ms
TIME/DIV : 1 ms
0 V
Vp-p
P-
LCD display:
VOLT/DIV: 0.2 V (with the 10: 1 probe in use.)
TIME/DIV: 200 ns
TIME/DIV: 200 ns
0.6 to 1.2 Vp-p
When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.
for AC range and raise vertical sensitivity.
ZS-YN7L
15
15
ZS-YN7L
Checking Location:
– CD Board (Conductor Side) –
TP
(VC)
TP
(TE)
TP
(RF)
IC702
16
16
ZS-YN7L
ZS-YN7L
C
D
E
F
LD
VC
VCC
10
B
11
A
12
13
14
9
16
15
CD +3.3V
GND
PD
VR
FOCUS
COIL
TRACKING
COIL
RF AMP, FOCUS/TRACKING
ERROR AMP
IC701
OPTICAL PICK-UP
BLOCK
(KSM-213RAP)
VC
27
A
6
B
7
C
8
D
9
E
10
F
11
LD
1
PD
2
COIL/MOTOR DRIVE
IC704
F+
13
F–
12
T+
2
T–
1
SL+
16
SL–
17
M701
(SLED)
M702
(SPINDLE)
SP+
26
SP–
27
F+
F-
T+
T-
9
10
5
4
20
SFDR
19
SRDR
TFDR
TRDR
FFDR
FRDR
24
SPIN
15
MUTE
MDP
103
SRDR
99
SFDR
100
TRDR
97
TFDR
98
FRDR
95
FFDR
96
CD DSP
IC702
RFAC
84
29
RFDCI
28
RFDC
16
FE
17
FEI
12
SW
RFDC
88
FE
92
TE
90
SE
91
109
PCMDI
21
DATA
R-CH
20
CLOK
23
XLAT
27
SCOR
28
XRST
DATAO
18
CLKO
20
XLATO
16
24
XSOE
XSOEO
17
SCORI
14
22
SENS
SENSIN
19
65
FOK
FOKI
13
69
GFS/MNT2/
XROF
GFSI
15
SYSTEM CONTROLLER
IC802 (1/2)
15
RF AC
18
TE
MP3 DECODER
IC703
PCMDO
15
111
BCKI
BCKO
13
107
LRCKI
LRCKO
14
108
PCMD
PCMDI
4
110
BCK
BCKI
2
51
AOUT1
56
AOUT2
106
LRCK
LRCKI
1
18
XRDE
XRDE
12
47
XTAI
48
XTAO
XTAL
30
EXTAL
29
40
SDOUT
SDIN
38
SDCLKI
42
SDXLATI
33
NRSTI
37
RDENO
41
62
DOUT
SDIN
SDOUT
85
SDCLKO
XWAKEO
83
84
SDXLATO
90
RDENI
86
34
88
NRSTO
87
LDONO
9
XWAKEI
PWM RF
5
PWM TE
6
PWM FE
8
RW/ROM
4
X701
16.9344MHz
S701
(LIMIT)
X702
22.58MHz
XRSTO
12
AUTOMATIC
POWER CONTROL
Q701, 702
M
M
CD-L
A
101
SSTP
D0
D3
D3
A0
A10
XRAS
5
D-RAM
IC705
2 XWE
9 XCAS
1 XRAS
9 XCAS
1 XRAS
A0
A10
2
3
3
22
23
23
.
.
.
XWE
4
XCAS 21
D0
D3
D3
17
15
13
15
13
.
11
.
116
113
113
.
117
8
11
14
14
.
19
7
.
4
3
6
5
3
6
5
.
.
.
OPTICAL
DIGITAL
OUT (CD)
LED DRIVE
Q391
IC391
37
CD DOOR
S421
CD LID OPEN/CLOSE
DETECT
(
)
: CD PLAY (ANALOG OUT)
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: CD PLAY (DIGITAL OUT)
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM – CD SERVO Section –
(Page 18)
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