Sony HCD-GTZ4 Service Manual page 42

HCD-GTZ4/GTZ4i/GTZ5
Pin No. Pin Name
62 VCC
63 ST-CE
64 VSS
65 ST-DIN
66 ST-CLK
67 ST-DOUT
68 MTK-OC1
69 LED CTRL
70 USB-BLUE LED
POWER
71
ILLUMINATOR
72 STBY LED
73 MTK-OC2
POWER/
74
DISPLAY-KEY
75 ST-RDS-INT
76 ST-RDS-DATA
LED-VOL5. 6 to
77 to 79
LED-VOL1. 2
80 METER LED
81 METER SW
MTK POWER
82
MINITOR
83 OVERVOLTAGE
84 METER IN2
85 FL-DRIVER-CLK
86 FL-DRIVER-DATA
87 FL-DRIVER-CS
88 FL-DRIVER-RESET
89 VACS IN
90 OPERATION DIAL
91 MASTER VOL
92 MODEL-IN
93 DEST-IN
94, 95 AD-KEY2, AD-KEY1
96 AVSS
97 AD-KEY0
98 VREF
99 AVCC
100 METER-IN1
42
I/O
- Power supply terminal (+3.3V)
O PLL chip enable signal output to the tuner (FM/AM)
- Ground terminal
O PLL serial data output to the tuner (FM/AM)
O PLL serial data transfer clock signal output to the tuner (FM/AM)
I PLL serial data input from the tuner (FM/AM)
I USB over current detection signal input terminal
O Power control selection signal output terminal for the front panel section LED
O LED drive signal output terminal for the USB B indicator
I Spectrum analyzer drive signal input from the electrical volume (A/D input)
O LED drive signal output terminal for the STANDBY indicator
I USB over current detection signal input terminal
I POWER & DISPLAY keys press detection signal input terminal (Interrupt input)
I RDS data transfer clock signal input the tuner (FM/AM) (GTZ4i: AEP model)
I RDS data input from the tuner (FM/AM) (GTZ4i: AEP model)
O LED drive signal output terminal for the illumination (stream) indicator
O Not used
I Meter position detection signal input from the meter display block (A/D input)
I Power monitor signal input terminal (A/D input)
Over-voltage protection detection signal input terminal
I (GTZ4: 120V AC area in E, Chilean and Peruvian models/ GTZ5: 120V AC area in E, Chil-
ean and Peruvian models)
O Meter motor drive signal output to the meter display block
O Serial data transfer clock signal output to the fl uorescent indicator tube driver
O Serial data output to the fl uorescent indicator tube driver
O Chip select signal output to the fl uorescent indicator tube driver
O Not used
I VACS level detection signal input from the electrical volume (A/D input)
I Jog dial pulse input from the rotary encoder (for OPERATION DIAL) (A/D input)
I Jog dial pulse input from the rotary encoder (for MASTER VOLUME) (A/D input)
I Model setting terminal (A/D input)
I Destination setting terminal (A/D input)
I Key input terminal (A/D input)
I Ground terminal (for A/D conversion)
I Key input terminal (A/D input)
I A/D converter reference voltage input terminal (+3.3V)
- Power supply terminal (+3.3V) (for A/D conversion)
O Meter motor drive signal output to the meter display block
Description
"H": LED on
"H": LED on
"L": over-voltage detected
"H": LED on