Sony CDX-V60 Service Manual ▷ View online
– 17 –
Tracking Offset Adjustment
Condition: This adjustment is performed with the set placed
horizonatally.
Connection:
Adjustment Procedure:
1. Connect the oscilloscope TP (TE) and TP (VC) on the SERVO
1. Connect the oscilloscope TP (TE) and TP (VC) on the SERVO
board.
2. Put the set into play mode by loading the disc (YEDS-18).
3. Press the
3. Press the
=, + keys (or 0, ) keys) on the master
unit and observe the traverse waveform*.
4. Adjust the RV11 on the SERVO boad so that the oscilloscope
reading is symmetrical in relation to 0 V.
* Traverse waveform: This is the tracking error waveform appears
when crossing the track.
VOLT/DIV: 0.5 V (with the 10 : 1 probe in use)
TIME/DIV: 2 msec
CENTER: 0 ± 0.05 V
TIME/DIV: 2 msec
CENTER: 0 ± 0.05 V
Connection and Adjustment Location:
SERVO board (see page 19)
CD SECTION
Notes:
1. Perform adjustments in the order given.
2. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise
2. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise
indicated.
3. Use the oscilloscope with more than 10 M
Ω
impedance.
4. Power supply voltage requirement: DC14.4 V (more than 3A)
Focus Bias Adjustment
Condition: This adjustment is performed with the set placed hori-
zontally.
Connection:
Adjustment Procedure:
1. Connect the oscilloscope to TP (RF) and TP (VC) on the
1. Connect the oscilloscope to TP (RF) and TP (VC) on the
SERVO board.
2. Put the set into play mode by loading the disc (YEDS-18).
3. Adjust the RV12 on the SERVO boad so that the wateform on
3. Adjust the RV12 on the SERVO boad so that the wateform on
the oscilloscope (eye pattern) is good.
(A good eye pattern means that the diamond shape (
(A good eye pattern means that the diamond shape (
◊
) in the
center of the oscilloscope can be clearly distinguished.)
• RF signal reference waveform (eye pattern)
VOLT/DIV: 200 mV (with the 10 : 1 probe in use)
TIME/DIV: 0.5 µsec
TIME/DIV: 0.5 µsec
Note:
When observing the eye pattern, set the oscilloscope to AC range
and raise the vertical sensitivity so that it may be easily seen.
and raise the vertical sensitivity so that it may be easily seen.
Connection and Adjustment Location:
SERVO board (see page 19)
SECTION 6
ELECTRICAL ADJUSTMENTS
+
–
–
TP (RF)
TP (VC)
TP (VC)
SERVO board
oscilloscope
(AC range)
+
–
–
TP (TE)
TP (VC)
TP (VC)
SERVO board
oscilloscope
(DC range)
A
B
0
±
0.05 V
C=1.8
±
0.3 V
traverse waveform
(100 track jump waveform)
(100 track jump waveform)
C
1.0 Vp-p
+0.2
–0.4
–0.4
– 18 –
13.5 MHz Adjustment
Connection:
Adjustment Procedure:
1. Connect the frequency counter to IC205 pin @¶ (RCK) on the
1. Connect the frequency counter to IC205 pin @¶ (RCK) on the
MAIN board.
2. Put the set into play mode by loading the disc (HLV-401 (TGIS-
3)).
3. Adjust the CT201 on the MAIN board so that the frequency
counter reading is 13.5 MHz.
Connection and Adjustment Location: MAIN board
OSD Screen Adjustment
Adjustment Procedure:
1. Press the FM or AM key on the master unit (for the master
1. Press the FM or AM key on the master unit (for the master
unit, see operating method of this set on page 3).
2. A graphic will be displayed on the monitor TV.
3. Under this condition, adjust the CT202 on the MAIN board so
3. Under this condition, adjust the CT202 on the MAIN board so
that the graphic on the screen becomes A = B.
Adjustment Location: MAIN board
VIDEO SECTION
Setting:
Notes:
1. Perform adjustments in the order given.
2. Use HLV-401 (TGIS-3) disc (Part No.: 4-978-510-01) unless
2. Use HLV-401 (TGIS-3) disc (Part No.: 4-978-510-01) unless
otherwise indicated.
3. Use the oscilloscope with more than 10 M
Ω
impedance.
4. Power supply voltage requirement: DC14.4 V (more than 3A)
Video CD Video Output Level Adjustment
Connection:
Adjustment Procedure:
1. Connect the oscilloscope to IC205 pin $¡ (BO) on the MAIN
1. Connect the oscilloscope to IC205 pin $¡ (BO) on the MAIN
boad.
2. Put the set into play mode by loading the disc (HLV-401 (TGIS-
3)).
3. Press the
=, + keys (or 0, ) keys) on the master
unit to play the track No. 41 (White (100%)).
4. adjust the RV201 on the MAIN board so that the waveform on
the oscilloscope is as shown below.
VOLT/DIV: 500 mV (with the 10 : 1 probe in use)
TIME/DIV: 20 µsec
TIME/DIV: 20 µsec
Connection and Adjustment Location: MAIN board
monitor TV
VIDEO OUT
jack
parking brake
terminal
connect to ground
set
+
–
–
frequency counter
MAIN board
IC205 pin
@¶
(RCK)
+
–
–
IC205 pin
$¡
(BO)
MAIN board
oscilloscope
0.95 to 1 Vp-p
A
B
A = B
– 19 –
TP
(RF)
TP
(VC)
TP
(TE)
RV11
TRACKING OFFSET adjustment
RV12
FOCUS BIAS adjustment
CT201
13.5 MHz adjustment
CT202
OSD SCREEN adjustment
IC208
IC201
IC101
IC281
IC205
IC206
25 27
41
37
RV201
VIDEO CD
VIDEO OUTPUT LEVEL
adjustment
CN601
VIDEO OUT
jack
CN702
BUS CONTROL
OUT connector
Connection and Adjustment Location:
[SERVO BOARD] (Condoctor Side)
[MAIN BOARD] (Component Side)
– 20 –
7-1.
IC PIN FUNCTION DESCRIPTION
SECTION 7
DIAGRAMS
•
MAIN BOARD IC101 CXP81952-648Q (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Function
1
U REQ O
O
Request (request to send) signal output terminal “L”: request on
Not used in this set (open)
Not used in this set (open)
2
U CD
O
Command data control signal output terminal
“H”: command or status, “L”: data Not used in this set (open)
“H”: command or status, “L”: data Not used in this set (open)
3
U WRITE
O
Write control signal output terminal Not used in this set (open)
4
U READ
O
Read control signal output terminal Not used in this set (open)
5
U CS
O
Chip select signal output terminal Not used in this set (open)
6
U RESET
O
Reset signal output terminal “L”: reset Not used in this set (open)
7
UART7
I/O
8
UART6
I/O
9
UART5
I/O
10
UART4
I/O
Two-way data bus for MPEG audio/video decoder (IC201)
11
UART3
I/O
12
UART2
I/O
13
UART1
I/O
14
UART0
I/O
15
EXT PW
I
Extended unit start-up signal input terminal
“L”: turns the power on Not used in this set (open)
“L”: turns the power on Not used in this set (open)
16
NIL
I
Not used in this set (open)
17
BUSON
I
Inputs the bus on control signal from audio bus inter-face (IC702)
“L”: bus on (used also to reset standby)
“L”: bus on (used also to reset standby)
18
BUCK
I
Inputs the backup power detection signal (used also to reset standby)
19
EECLK
O
Outputs the clock signal to EEPROM (IC103)
20
EEDATA
I/O
Two-way data bus for EEPROM (IC103)
21
MAG. SW
I
Inputs the magazine sensor (SW501) detection signal
“H”: magazine is not present, "L": magazine is present (used also to reset standby)
“H”: magazine is not present, "L": magazine is present (used also to reset standby)
22
EJECTKEY
I
Inputs the eject switch (SW11) detection signal
“L” is input while the switch is pressed (used also to reset standby)
“L” is input while the switch is pressed (used also to reset standby)
23
APC
O
Outputs the laser diode on/off control signal to RF amplifier (IC11) “L”: on
24
SCLK
O
Outputs the SENS serial data reading clock for CXD2515Q (IC12)
25
VD R/W
O
Outputs the write/read selection signal to MPEG audio/video decoder (IC201)
“H”: read mode, “L”: write mode
“H”: read mode, “L”: write mode
26
AMUTE
O
Outputs the audio mute on/off control signal “H”: mute on
27
SUBQ
I
Inputs the subcode Q data signal from CXD2515Q (IC12)
28
PROGRAM
I
Not used in this set (fixed at “H”)
29
SINGLE
I
Input single disc/multiple discs mode setting signal
“L”: single disc mode (fixed at “H” in this set)
“L”: single disc mode (fixed at “H” in this set)
30
TRK
I
Inputs tracking servo on/off setting signal “L”: off (fixed at "H" in this set)
31
ELVR
O
Outputs the reverse direction control signal to elevator motor drive (IC18) “H”: active
32
ELVF
O
Outputs the forward direction control signal to elevator motor drive (IC18) “H”: active
33
CHKR
O
Outputs the reverse direction control signal to chucking motor drive (IC17) “H”: active
34
CHKF
O
Outputs the forward direction control signal to chucking motor drive (IC17) “H”: active
35
CDXLT
O
Outputs the serial latch signal to CXD2515Q (IC12)
36
CDDATA
O
Outputs the serial data signal to CXD2515Q (IC12)
37
CDCLK
O
Outputs the serial data transfer clock to CXD2515Q (IC12).
38
CDRST
O
Outputs the reset signal to CXD2515Q (IC12) “L”: reset
39
GND
—
Ground terminal
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