Sony MZ-N1 service manual Vdiosc

MZ-N1

Pin No.	Pin Name	I/O	Description
149	VDIOSC	—	Power supply terminal (for the OSC cell) (+2.2V)
150	OSCI	I	System clock (45.1584MHz) input terminal
151	OSCO	O	System clock (45.1584MHz) output terminal
152	VSIOSC	I	Ground terminal (for the OSC cell)
153	DAVDD	—	Power supply terminal (for the built-in D/A converter) (+2.2V)
154	VREFL	I	Reference voltage input terminal (for the built-in D/A converter L-CH)
155	AOUTL	O	Built-in D/A converter (L-CH) output terminal
156	AOUTR	O	Built-in D/A converter (R-CH) output terminal
157	VREFR	I	Reference voltage input terminal (for the built-in D/A converter R-CH)
158	DAVSS	—	Ground terminal (for the built-in D/A converter)
159	ASYO	O	Playback EFM duplex signal output terminal
160	ASYI	I	Playback EFM comparison slice level input terminal
161	AVD1	—	Power supply terminal (for the DSP asymmetry system analog) (+2.2V)
162	BIAS	I	Bias current input terminal for the playback EFM comparison
163	RFI	I	Playback EFM the RF signal input from the RF amplifier
164	AVS1	—	Ground terminal (for the DSP asymmetry system analog)
165	PCO	O	Phase comparison output terminal for the playback EFM system master PLL
166	FILI	I	Filter input terminal for the playback EFM system master PLL
167	FILO	O	Filter output terminal for the playback EFM system master PLL
168	CLTV	I	Internal VCO control voltage input terminal for the playback EFM system master PLL
169	PEAK	I	Peak hold signal input of the light amount signal (RF/ABCD) from the RF amplifier
170	BOTM	I	Bottom hold signal input of the light amount signal (RF/ABCD) from the RF amplifier
171	ABCD	I	Light amount signal (ABCD) input from the RF amplifier
172	FE	I	Focus error signal input from the Focus error amplifier
173	AUX1	I	Support signal (I3 signal/temperature signal) input terminal (A/D input)
174	VC	I	Middle point voltage (+1.1V) input terminal
175	ADIO	O	Monitor output terminal of A/D converter input signal		Not used
176	ADRT	I	A/D converter the upper limit voltage input terminal (fixed at “H” in this set)
177	AVD2	—	Power supply terminal (for the DSP servo analog system) (+2.2V)
178	AVS2	—	Ground terminal (for the DSP servo analog system)
179	ADRB	I	A/D converter the lower limit voltage input terminal (fixed at “L” in this set)
180	SE	I	Servo signal monitor input terminal (A/D input) from the RF amplifier
181	TE	I	Tracking error signal input from the Tracking error amplifier
182	DCHG	—	Connecting terminal with the analog power supply of the low impedance (fixed at “H” in this set)
183	APC	I	Error signal input for the laser automatic power control (fixed at “H” in this set)
184	CKRF	O	Clock output terminal for the RF amplifier control	Not used
185	DTRF	O	Data output terminal for the RF amplifier control	Not used
186	XLRF	O	Latch signal output terminal for the RF amplifier control		Not used
187	DVSS2	—	Ground terminal (for the DSP block)
188	DVDD2	—	Power supply terminal (for the DSP block) (+1.1V)
189	XTSL	I	Input terminal for the frequency set up of the system clock
			“L”: 45.1584MHz, “H”: 22.5792MHz (fixed at “L” in this set)
190	DIN1	I	Input terminal of the record system digital audio signal
191 to	NC	O	D/A converter PWM signal output terminal Not used
193
194	DADT	O	Audio data output terminal Not used

50