Sony HCD-BC150 - Dvd Home Theater System, Service Manual

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HCD-BC150/BC250
Pin No. Pin Name I/O Description
53 MUTE DSD O Muting on/off control signal output to the DSD decoder “H”: muting on
54 SQCK O Subcode Q data reading clock signal output to the digital signal processor
55 VSS — Ground terminal (digital system)
56 CONTROL 2 I Disc tray in detection signal input terminal Not used
57 CONTROL 1 I Disc tray out detection signal input terminal Not used
58 GFS DVD I Guard frame sync signal input from the DVD decoder
59 MUTE CD O Muting on/off control signal output to the digital signal processor “H”: muting on
60 MUTE 2D O Muting on/off control signal output to the motor/coil driver “H”: muting on
61 SLED I Sled motor servo drive PWM signal input terminal
62 FG I Spindle motor control signal input
63 SP ON O Muting on/off control signal output to the motor/coil driver “H”: muting on
64 JIT I Jitter signal input
65 TE I Tracking error signal input from the DVD/CD RF amplifier
66 PI I Pull in signal input from the DVD/CD RF amplifier
67 FE I Focus error signal input from the DVD/CD RF amplifier
68 AVSS — Ground terminal (for A/D converter)
69 AVREF I Reference voltage input terminal (for A/D converter)
70 AVDD — Power supply terminal (+3.3V) (for A/D converter)
71 GFS CD I Guard frame sync signal input from the digital signal processor
72 SCLK CD O SENSE serial data reading clock signal output to the digital signal processor
73 TSD-M O Thermal shut down signal output to the motor/coil driver
74 FOK CD I Focus OK signal input from the digital signal processor
75 LOCK CD I GFS is sampled by 460 Hz “H” input when GFS is “H”
76 LDSEL O Laser diode selection signal output
77 SACD/DVD O “SACD/DVD selection signal output “L”: DVD, “H”: SACD”
78 I2C SIO I/O Communication data bus with the DVD system processor and system controller
79 I2C SCL I/O
Communication data reading clock signal input or transfer clock signal output
with the DVD system processor and system controller
80 RXD I Serial data input (RS-232C)
81 TXD O Serial data output (RS-232C)
82 SDCLK RF O Serial data transfer clock signal output to the DVD/CD RF amplifier
83 SDATA RF I/O Two-way data bus with the DVD/CD RF amplifier
84 XWR O Write strobe signal output to the DVD decoder
85 XRD O Read strobe signal output to the DVD decoder
86 (PWE) — Not used
87 VDD — Power supply terminal (+3.3V) (digital system)
88 VSS — Ground terminal (digital system)
89 to 96 A0 to A7 O Address signal output to the DVD decoder
97 A8 O Motor/coil driver power save control signal output terminal
98 XDRST O Reset signal output to the digital signal processor and DSD decoder “L”: reset
99 WP EEP O Write protect signal output to the EEPROM
100 SCL EEP O Clock signal output to the EEPROM
Ver 1.3