Sony CDX-838 Service Manual page 34

QQ
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Pin No. Pin Name
47 D/A.RESET
48 SCK
49 SI
50 SO
51 SCLK
52 SUBQ
53 —
54 C.OUT
55 BUS.ON
56 A/D.SW
57 MGLK
58 ELV.F
59 —
60 MAG.SW
61 BU.CHK
62 W.UP
63 SCOR
64 EJECT
65 CD.CLK
66 CD.XLT
67 CD.DATA
TE
L 13942296513
68 CD.ON
69 ELV.ON
70 ELV.R
71 —
72 VDD
73 NC (VDD)
74 BUSY
75 RESET
76 REQ
77 CCCLK
78 CSO
79 CSI
80 ADJ
*1 chucking motor (M103) control
Mode
Terminal
CH.F (pin 4)
CH.R (pin 5)
www
*2 elevator motor (M104) control
Mode
.
Terminal
ELV.F (pin tk)
ELV.R (pin u;)
34
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I/O
O Reset signal output to the D/A converter (IC601) "L": reset
I Serial data transfer clock signal input from the SONY bus interface (IC302)
I Serial data input from the SONY bus interface (IC302)
O Serial data output to the SONY bus interface (IC302)
O Subcode Q data reading clock signal output to the CXD2530Q (IC101)
I Subcode Q data input from the CXD2530Q (IC101)
O Not used (open)
I Track number count signal input from the CXA1992BR (IC11)
I Bus on/off control signal input from the SONY bus interface (IC302) "H": bus on
I Analog/digital select switch (SW801) input terminal "L": digital, "H": analog
I Magazine eject operation completion detect switch (SW201) input "L": magazine detected
Motor drive signal (elevator up direction) output to the elevator motor drive (IC301)
O
"L" active *2
O Not used (open)
I Magazine in/out detect switch (SW202) input "L": normally "H": magazine in/out operation
Battery detection signal input terminal "H": battery on
I
I Bus on or eject switch (SW301) input terminal "H": bus on or eject switch pushing
I Subcode sync (S0+S1) detection signal input from the CXD2530Q (IC101)
I Eject switch (SW301) input terminal "H" active
O Serial data transfer clock signal output to the CXD2530Q (IC101) and CXD2522Q (IC401)
O Serial data latch pulse signal output to the CXD2530Q (IC101)
O Serial data output to the CXD2530Q (IC101) and CXD2522Q (IC401)
O D/A converter and servo section power supply on/off control signal output "H": power on
O Mechanism deck section power supply on/off control signal output "H": power on
Motor drive signal (elevator down direction) output to the elevator motor drive (IC301)
O
"L" active *2
O Not used (open)
— Power supply terminal (+5V)
— Connected to the power supply (+5V)
I Busy monitor input from the CD text decoder (IC501) "L": busy status
O Reset signal output to the CD text decoder (IC501) "L": reset
I Data request signal input from the CD text decoder (IC501) "L" active
O Command clock signal output to the CD text decoder (IC501)
O Command data output to the CD text decoder (IC501)
I Command data input from the CD text decoder (IC501)
Automatic/manual adjustment selection terminal
I
"L": manual adjustment mode, "H": automatic adjustment mode (fixed at "H" in this set)
LOAD
STOP SAVE
CHUCKING
"H" "L"
"H" "H"
x ao
y
ELEVATOR ELEVATOR
STOP i
UP DOWN
"H" "L"
"H" "H"
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8
Description
Q Q
3 6 7 1 3
BRAKE
"H" "L"
"L" "L"
u163
BRAKE .
"H" "L"
"L" "L"
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9