Sony Net MD Walkman MZ-N1 Service Manual page 50

MZ-N1
Pin No.
Pin Name
149 VDIOSC
150 OSCI
151 OSCO
152 VSIOSC
153 DAVDD
154 VREFL
155 AOUTL
156 AOUTR
157 VREFR
158 DAVSS
159 ASYO
160 ASYI
161 AVD1
162 BIAS
163 RFI
164 AVS1
165 PCO
166 FILI
167 FILO
168 CLTV
169 PEAK
170 BOTM
171 ABCD
172 FE
173 AUX1
174 VC
175 ADIO
176 ADRT
177 AVD2
178 AVS2
179 ADRB
180 SE
181 TE
182 DCHG
183 APC
184 CKRF
185 DTRF
186 XLRF
187 DVSS2
188 DVDD2
189 XTSL
190 DIN1
191 to
NC
193
194 DADT
50
I/O
—
Power supply terminal (for the OSC cell) (+2.2V)
I
System clock (45.1584MHz) input terminal
O System clock (45.1584MHz) output terminal
I Ground terminal (for the OSC cell)
—
Power supply terminal (for the built-in D/A converter) (+2.2V)
I Reference voltage input terminal (for the built-in D/A converter L-CH)
O Built-in D/A converter (L-CH) output terminal
O
Built-in D/A converter (R-CH) output terminal
I
Reference voltage input terminal (for the built-in D/A converter R-CH)
—
Ground terminal (for the built-in D/A converter)
O Playback EFM duplex signal output terminal
I Playback EFM comparison slice level input terminal
—
Power supply terminal (for the DSP asymmetry system analog) (+2.2V)
I
Bias current input terminal for the playback EFM comparison
I Playback EFM the RF signal input from the RF amplifier
—
Ground terminal (for the DSP asymmetry system analog)
O Phase comparison output terminal for the playback EFM system master PLL
I
Filter input terminal for the playback EFM system master PLL
O Filter output terminal for the playback EFM system master PLL
I Internal VCO control voltage input terminal for the playback EFM system master PLL
I
Peak hold signal input of the light amount signal (RF/ABCD) from the RF amplifier
I
Bottom hold signal input of the light amount signal (RF/ABCD) from the RF amplifier
I Light amount signal (ABCD) input from the RF amplifier
I Focus error signal input from the Focus error amplifier
I Support signal (I signal/temperature signal) input terminal (A/D input)
3
I Middle point voltage (+1.1V) input terminal
O Monitor output terminal of A/D converter input signal Not used
I A/D converter the upper limit voltage input terminal (fixed at "H" in this set)
—
Power supply terminal (for the DSP servo analog system) (+2.2V)
—
Ground terminal (for the DSP servo analog system)
I
A/D converter the lower limit voltage input terminal (fixed at "L" in this set)
I
Servo signal monitor input terminal (A/D input) from the RF amplifier
I
Tracking error signal input from the Tracking error amplifier
—
Connecting terminal with the analog power supply of the low impedance (fixed at "H" in this set)
I
Error signal input for the laser automatic power control (fixed at "H" in this set)
O Clock output terminal for the RF amplifier control Not used
O Data output terminal for the RF amplifier control Not used
O Latch signal output terminal for the RF amplifier control Not used
—
Ground terminal (for the DSP block)
—
Power supply terminal (for the DSP block) (+1.1V)
Input terminal for the frequency set up of the system clock
I
"L": 45.1584MHz, "H": 22.5792MHz (fixed at "L" in this set)
I
Input terminal of the record system digital audio signal
O D/A converter PWM signal output terminal Not used
O Audio data output terminal Not used
Description