Sony MZ-B10 service manual Not used open

MZ-B10

Pin No.	Pin Name	I/O			Description
111	BATT_CTL_1	O	Control signal output for the voltage step up circuit in the external battery case						Not used (open)
112	BATT_CTL_2	O	Not used (open)
113	NC	O	Not used (open)
114, 115	PD_S0, 1	O	PD IC mode changeover signal output to the optical pick up
116	LINK_MON	O	Linking area monitor signal output Not used (open)
117	PL_CTL	O	Plunger control signal output
118	GND_SW	O	Ground changeover switch control signal output
119, 120	NC	O	Not used (open)
121	SLD_MON	I	Sled servo monitor signal input
122	VLON	O	Not used (open)
123	SLEEP	O	System sleep control signal output to the power control
124	FFCLR	O	Input latch output for the start switching to the power control
125	CHGI_CTL1	O	Charge current limit ON/OFF control signal output at the time of adaptor use						Not used (open)
126	CHGI_CTL2	O	Charge current limit value changeover control signal output at the time of adaptor use Not used (open)
127	NC	O	Not used (open)
128	CHG_LED	O	LED ON/OFF control signal output for CHG (charge display) Not used (open)
129	XTEST	I	Terminal for the test mode setting (normally open) “L”: test mode
130	XRF_RST	O	Reset control signal output to the RF amplifier		“L”: reset
131	XEXT_PWR	I	External power supply (AC adaptor/charging stand) detection signal input					Not used (open)
132	XHOLD_SW	I	HOLD switch input terminal	“L”: hold ON
133	COUT_MON	I	Traverse count measurement monitor input
134	CHG_ADSEL	O	A/D terminal of the battery charge contro IC output selection signal output					Not used (open)
135	CHGI_SEL	O	Charge/discharge changeover control signal output for the current sense amplifier							Not used (open)
136	XDC_IN	I	DC plug detection signal input	Not used (open)
137	SPDL_MON	I	Spindle servo monitor signal input
138	XCS_PWR_IC	O	Chip select signal output to the power control
139, 140	NC	O	Not used (open)
141	XCS_LCD	O	Chip select signal output to the liquid crystal display module
142	LCD_STB	O	Strobe signal output to the liquid crystal display module
143	XRST_MTR_DRV	O	Reset control signal output to the motor driver		“L”: reset
144	XCS_NV	O	Chip select signal output to the nonvolatile memory
145	CHG_PWM	O	Output voltage control signal output to the battery charge control Not used (open)
146	VREC_PWM	O	PWM signal output for the power supply voltage control to the REC driver
147	NC	O	PWM signal output for the laser power supply voltage control to the power control							Not used (open)
148	NC	O	Muting control signal to the headphone amplifier (NJM type made by JRC)					Not used (open)
149	NC	O	Power supply control signal output for the D class headphone amplifier				Not used (open)
150	XCS_REC_DRV	O	Chip select signal output to the REC driver Not used (open)
151	T_MARK _SW	I	T MARK (track mark) switch input terminal		“L”: track mark detection		Not used (open)
152	JOG_A	I	Jog dial pulse input from the switch & liquid crystal display module			Not used (open)
153	JOG_B	I	Jog dial pulse input from the switch & liquid crystal display module			Not used (open)
154, 155	NC	O	Not used (open)
156	SSB_DATA	I/O	SSB data input/output with the RF amplifier
157	SSB_CLK	O	SSB clock output to the RF amplifier
158	VBUS_DET	I	Not used (fixed at “H”)
159	VB_MON	I	Voltage monitor input terminal (A/D input) of the UNREG power supply
160	CHG_MON	I	Not used (fixed at “H”)
161	VREF_MON	I	Reference voltage monitor input (A/D input) from the RF amplifier
162, 163	SET_KEY_1, 2	I	Key input (A/D input) from the switch & liquid crystal display module
164	CRADLE_DET	I	Not used (fixed at “H”)
165	HIDC_MON	I	HIGH DC voltage monitor input (A/D input)

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