Service manual

94
HCD-FR10W
DMB08 BOARD IC401 CXD3068Q (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR)
Pin No. Pin Name I/O Description
1DVDD0 — Power supply terminal (+3.3V) (digital system)
2 XRST I Reset signal input from the mechanism controller “L”: reset
3 MUTE I Muting on/off control signal input from the mechanism controller “H”: muting on
4DATAISerial data input from the mechanism controller
5 XLAT I Serial data latch pulse signal input from the mechanism controller
6 CLOK I Serial data transfer clock signal input from the mechanism controller
7 SENS O Internal status (SENSE) signal output to the mechanism controller
8 SCLK I SENSE serial data reading clock signal input from the mechanism controller
9ATSK I/O Input/output terminal for anti-shock Not used
10 WFCK O Write frame clock signal output to the DVD decoder
11 RFCK O RFCK signal output terminal Not used
12 XPCK O XPCK signal output terminal Not used
13 GFS O Guard frame sync signal output to the mechanism controller
14 C2PO O C2 pointer signal output to the DVD decoder
15 SCOR O
Subcode sync (S0+S1) detection signal output to the DVD decoder and
mechanism controller
16 C4M O 4.2336 MHz clock signal output terminal Not used
17 WDCK O Guard subcode sync (S0+S1) detection signal output to the DVD decoder
18 DVSS0 — Ground terminal (digital system)
19 COUT O Numbers of track counted signal output to the mechanism controller
20 MIRR O Mirror signal output to the mechanism controller
21 DFCT I/O Defect signal input/output terminal Not used
22 FOK O Focus OK signal output to the mechanism controller
23 PWMI I Spindle motor external control signal input terminal Not used
24 LOCK O GFS is sampled by 460 Hz “H” output when GFS is “H”
25 MDP O Spindle motor servo drive signal output to the DVD decoder
26 SSTP I
Detection signal input from limit in switch The optical pick-up is inner position
when “H”
27 FSTO O 2/3 divider output terminal Not used
28 DVDD1 — Power supply terminal (+3.3V) (digital system)
29 SFDR O Sled servo drive PWM signal (+) output
30 SRDR O Sled servo drive PWM signal (–) output
31 TFDR O Tracking servo drive PWM signal (+) output
32 TRDR O Tracking servo drive PWM signal (–) output
33 FFDR O Focus servo drive PWM signal (+) output
34 FRDR O Focus servo drive PWM signal (–) output
35 DVSS1 — Ground terminal (digital system)
36 TEST I Input terminal for the test
37 TES1 I Input terminal for the test
38 VC I Middle point voltage (+1.65V) input terminal
39 FE I Focus error signal input from the DVD/CD RF amplifier
40 SE I Sled error signal input from the DVD/CD RF amplifier
41 TE I Tracking error signal input from the DVD/CD RF amplifier
42 CE I Middle point servo analog signal input
43 RFDC I RF signal input from the DVD/CD RF amplifier
44 ADIO O Output terminal for the test Not used
45 AVSS0 — Ground terminal (analog system)
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