Sony CDX-M620 Service Manual page 27

• IC5 CXP84640-072Q (CD SYSTEM CONTROL) (SERVO BOARD)
Pin No. Pin Name
1 ITRPT
2, 3 —
4, 5 NCO
6 OPEN
7 CLOSE
8 LINKOFF
9 NCO
10 D SW
11 SSTP
12, 13 NCO
14, 15 —
16 EMPH O
17 CDMON
18 CD ON
19 A MUT
20 LD ON
21 CD RST
22 HOLD
23 AGC CONT
24 —
25 PH3
26 TSTIN0
27 TSTIN1
28 TST.CLV
29 NCO
30 RESET
31 X IN
32 X OUT
33 GND
34 XT OUT
35 XT IN
36 AVSS
37 AVREF
38 TEP L
39 TEP H
40 SLED–
41 PH2
42 SEK/SMET
43 GFS/MNT2 SEL
44 SC-JIG ON/OFF
45 SCLK
46 LOCK
47 —
48 SCK2
49 SI2
50 —
51 BUS CLK
52 BUS SI
53 BUS SO
54 F OK
55 GFS
56 TEST MODE
I/O
— Not used in this set.
— Not used in this set.
— Not used in this set.
I Front panel open detection input
O Front panel close control output
I Bus interface link input
— Not used in this set.
I Down switch input (SW1)
I Limit switch input (SW4)
— Not used in this set.
— Not used in this set.
O De-emphasis ON/OFF control output
O CD mechanism deck power control output
O CD power control output
O System attenuate control output
O Laser power ON/OFF control output
O CD system reset output
O Hold switch output
O AGC control output
— Not used in this set.
I Not used in this set.
I Not used in this set.
I Not used in this set.
I Not used in this set.
— Not used in this set.
I System reset input ("L"=Reset)
I X'tal oscillator input from system clock. (10 MHz)
O X'tal oscillator output for system clock. (10 MHz)
— Analog ground
O Not used in this set.
I Not used in this set.
— A/D converter ground
I A/D converter reference voltage input
I Not used in this set.
I Not used in this set.
I Sled drive input
I Not used in this set.
I Fixed at "H" in this set.
I Fixed at "H" in this set.
I Fixed at "H" in this set.
O CD-TEXT data read clock output
I/O Lock signal input/output
— Not used in this set.
O Sub Q read clock output
I Sub Q 80 bit, PCM peak and level data 16 bit input.
— Not used in this set.
I/O Bus system serial clock input/output
I Bus system serial interface input
O Bus system serial interface output
I Focus OK signal input
I GFS signal detection input
I Fixed at "H" in this set.
CDX-M620/M670
Pin Description
27