Sony CDX-C90 Service Manual page 53

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54
55
56
57
58, 59
60
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62
63
64
65, 66
67
68
69
70
71
72
73
74
75
76
77
78
79
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L 13942296513
80
81
82
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84
85
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90
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www
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Pin Name I/O
VCC — Power supply pin (+5 V)
RAMBU I RAM reset detection input
TESTIN I Test mode setting detection input
AD ON O Power control output of A/D conversion.
RE IN0, 1 I Rotary encoder input 0, 1
BOOT I Compulsory boot mode input
DIMMER O Dimmer control output
TIR IND O TIR indicator control output (Not used in this set.)
GND — GND
SYSRST O System reset output
NCO — Not used.
EEDATA I/O EEPROM serial data input/output
EECLK O EEPROM serial clock output
NCO — Not used.
RDSSI I RDS serial clock input (Not used in this set.)
RDSCKO I RDS serial data input (Not used in this set.)
DAVN I RDS IC data taking in detection input (Not used in this set.)
X0A — Low speed oscillation input (32.768 kHz)
X0B — Low speed oscillation input (32.768 kHz)
RC IN1 I Rotary commander input
BU IN I Back-up power detection input
KEY ACK I Key input acknowledge
ILLIN I Illumination line detection input
TEL ATT I Telephone mute detection input
NCO — Not used.
ACC IN I Accessory power detection input
EMPH I I Emphasis input
FP CLOSE I Front panel close detection input
FP OPEN O Front panel open control output
BOOT DP O Display controller boot mode control output
HSTX — Connect to power supply pin.
MD2 — Connect to GND.
MD0, 1 — Connect to power supply pin.
RESET I Microcomputer reset input
VSS — GND
X0 — High speed oscillation input (3.68 MHz)
X1 — High speed oscillation input (3.68 MHz)
VCC — Power supply pin (+5 V)
TIMPOL O Time poling setting (Fixed at "H" in this set.)
PW ON O System power control output
ILL ON O Illumination power control output
DIRECT O Direct volume control output
ATT O System mute control output
ANTREM O Antenna remote control output
VOLCE0 O Input selector/tone/sub volume serial chip enable output
VOLCE1 O Electric volume serial chip enable output (L-CH)
VOLCE2 O Electric volume serial chip enable output (R-CH)
VOLCKO O Volume serial clock output
x ao
y
VOLSO O Volume serial data output
ENC+ I Rotary commander and encoder input (+)
i
ENC– I Rotary commander and encoder input (–)
FM ON O FM ON control output
AM ON O AM ON control output
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Pin Description
1 5 0 5 8 2 9 9 4
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9 9
2 8 9 9