Sony ZS-BTY50 Service Manual page 54

ZS-BTY50/BTY52/BTY55
Pin No. Pin Name
I_SUFFIX_1 to
57 to 59
I_SUFFIX_3
60 VCC2
61 I_CHARGE
62 VSS
63 BATT_LEVEL_DET
64 BATT_FLAT_DET
65 NC
66 I_WAKE UP
67 BATT_TEMP_DET
68 AU_LEVEL_DET
69 DSP3.3VCHECK
70 SYS_EN
71 LCD_UART_INT
72 AC_CHK
73 BT_MUTE
74 BATT_LEVEL_EN
75 BT_TX
76 BT_RX
CHG_CURRENT_
77
SEL
78 W_B_CURRENT
79 RED_LED_SW
RED_CURRENT1,
80, 81
RED_CURRENT2
82 BT_CTS
83 BT_RTS
84 BT_RESET
85 I-JOG-A
86 I-JOG-B
87 ERP_DET
88 VHCHECK
89 6VCHECK
90 to 93 KEYIN4 to KEYIN1
94 AVSS
95 LCD_INH
96 VREF
97 AVDD
98 LCD_CE
99 LCD_SD
100 LCD_CLK
54
I/O
I Destination setting terminal
- Power supply terminal (+3.3V)
I Battery charge function setting terminal
- Ground terminal
I Battery level detection signal input terminal (BTY55)
I Battery fl at voltage detection signal input terminal (BTY55)
- Not used
I Wake up signal input terminal
I Battery temperature detection signal input terminal (BTY55)
I Audio level detection signal input from audio level detect IC
I USB power supply check signal input terminal (BTY52/BTY55)
O Main power supply on/off control signal output terminal
- Not used
I AC/DC input detection signal input terminal
I Bluetooth muting on/off control signal input from the Bluetooth module
O Battery level detection enable signal output terminal (BTY55)
O Serial data output to the Bluetooth module
I Serial data input from the Bluetooth module
O Battery charge current selection signal output terminal (BTY55)
O LED current selection signal output terminal for illumination (blue) indicator
O LED drive signal output terminal for illumination (red) indicator
O LED current selection signal output terminal for illumination (red) indicator
O Clear to send signal output to the Bluetooth module
I Request to send signal input from the Bluetooth module
O Reset signal output to the Bluetooth module
I Jog dial pulse input from the rotary encoder (A phase input) (for volume)
I Jog dial pulse input from the rotary encoder (B phase input) (for volume)
I EUP audio detection signal input terminal
I Main power supply voltage detection signal input terminal
I +6V regulator output power supply voltage detection signal input terminal
I Top panel key input terminal
- Ground terminal
O Display on/off control signal output to the liquid crystal display driver
I Reference voltage (+3.3V) input terminal
- Power supply terminal (+3.3V)
O Chip enable signal output to the liquid crystal display driver
O Serial data output to the liquid crystal display driver
O Serial data transfer clock signal output to the liquid crystal display driver
Description
"H": battery charge is set
"H": power on
"L": AC, "H": DC
"H": LED on
"L": reset
Not used
"H": display on
"L": muting on