Sony CDP-D500 Service Manual ▷ View online
– 17 –
6. Check the level B of the oscilloscope’s waveform and the A
(DC voltage) of the center of the Traverse waveform.
Confirm the following:
A/B
Confirm the following:
A/B
×
100 = less than ± 6 (%)
RF PLL Free-run Frequency Check
Procedure:
1. Connect frequency counter to test point (XPLCK) with a lead
1. Connect frequency counter to test point (XPLCK) with a lead
wire.
Center of the waveform
B
level : 1.5 Vp-p
A (DC voltage)
0V
Traverse waveform
+1.5
–0.5
–0.5
7. Press the “8” button. (The tracking servo and sledding servo are
turned ON.) Confirm the C (DC voltage) is almost equal to the
A (DC voltage) is step 6.
A (DC voltage) is step 6.
Tracking servo
Sledding servo
Sledding servo
OFF
C (DC
voltage)
voltage)
0V
Traverse waveform
Tracking servo
Sledding servo
Sledding servo
ON
8. Disconnect the lead wire of TP (ADJ) connected in step 1.
2. Turned Power switch on.
3. Put the disc (YEDS-18) in to play the number five track.
3. Put the disc (YEDS-18) in to play the number five track.
Confirm that reading on frequency counter is 4.3218 MHz.
Balance Level Adjustment
(Generally it does not need to adjust because it has alredy adjusted
before shipping.)
1. Turn on the disc (YEDS-18) and play the number 2 track (1 kHz
before shipping.)
1. Turn on the disc (YEDS-18) and play the number 2 track (1 kHz
0 dBs)
2. Connect level meter to BALANCE OUT (J304)
3. Adjustment level
3. Adjustment level
BALANCE OUT: +24 dBs
RV101 (L-CH)
RV201 (R-CH)
RV201 (R-CH)
+
–
–
frequency counter
MAIN board
TP (XPLCK)
– 18 –
[MAIN BOARD] — Component side —
IC21
IC31
TP
(VC)
TP
(RF)
TP
(FE)
TP (TE)
M102
CN01
[BSL BOARD] — Side B —
TP
(VC)
TP (TE1 )
TP
(FE1)
TP
(XPLCK)
(XPLCK)
IC401
IC305
IC304
IC303
IC302
IC301
IC601
C301
C302
TP (ADJ)
R500
RV101
BALANCE LEVEL (L-CH)
BALANCE LEVEL (L-CH)
RV201
BALANCE LEVEL (R-CH)
BALANCE LEVEL (R-CH)
– 22 –
•
Circuit Boards Location
BSL board
LOADING board
H.P. AMP
board
board
SLIDE SW board
PANEL board
JOG SHUTTLE board
MAIN board
XLR board
I/O board
AC SW board
ENC board
– 46 –
1
XTAL
O
Clock (19.6608 MHz)
2
EXTAL
I
3
MD1
I
Mode select
4
MD0
I
Mode select
5
NMI
I
Connected ground
6
VDD
–
+5V power supply
7
STBY
I
Connected VDD (+5V)
8
VSS
–
Ground
9-11
DIN1-DIN3
I
Parallel remote control input
12
RM MODE
I
Parallel remote control mode select
13
CTS
I
Serial remote control enable transmitter
14
RTS
O
Serial remote control enable receive
15
–
–
Not used (open)
16
SYNC SW
I
EXT SYNC ON/OFF SWITCH detection
17
TXD
O
Serial remote control output
18
RXD
I
Serial remote control input
19
EXWARD
I
EXT SYNC frequency detection
20
V/S SEL
O
VARI SPEED and EXT SYNC filter select
21
SUBQ
I
Subcode Q data input from main µ-COM
22
SQCK
I
Subcode Q clock input from main µ-COM
23
SCOR
I
Subcode Q interrupt input from DSP
24
DATA1
O
Data output to main µ-COM
25
H8 CLK
I
Clock input from main µ-COM
26
DATA 0
I
Data input from main µ-COM
27
AS
O
Address strobe of S-RAM
28
WR
O
Write enable output
29
RD
O
Read enable output
30
WAIT
I
Connected ground
31
VDD
–
+5V power supply
32-34
–
–
Not used (open)
35-39
A12-A18
O
S-RAM address appoint port
40
VSS
–
Ground
41-48
A7-A0
O
S-RAM address appoint port
49-56
D0-D7
I/O
S-RAM data read and write port
57
SCLK
O
CD text data clock output to S-RAM
58
SRDT
I
CD text data input from S-RAM
59
DQST
I
CD text interrupt input from S-RAM
60, 61
DIN5, DIN4
O
Parallel remote control output
62
MODE 0
I
Move mode select input
63
MODE 1
I
Move mode select input
64
XRST
I
Reset input
Pin No.
Pin Name
I/O
Function
6-8.
IC PIN FUNCTION DESCRIPTION
MAIN BOARD IC501 HD6473238F-TTX1025 (SUB CONTROL)
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