Samsung SC-148B Service Manual page 7

PIN DESCRIPTIONS
NO SYMBOL DESCRIPTIONS
1 VSS3 DIGITAL GND TERMINAL
2 BCK BIT CLOCK OUTPUT TERMINAL (1.4112MHz)
3 AOUT AUDIO DATA OUTPUT TERMINAL
4 DOUT DIGITAL OUT OUTPUT TERMINAL
5 MBOV BUFFER MEMORY OVER SIGNAL OUTPUT TERMINAL.OVER: H
6 IPF COMPLEMENTARY FLAG OUTPUT TERMINAL
7 SBOK CRCC RESULT OUTPUT TERMINAL FOR SUBCODE Q DATA
8 CLCK SUBCODE P-W DATA READ CLOCK INPUT/OUTPUT TERMINAL
9 VDD3 DIGITAL +3.3V POWER TERMINAL
10 VSS5 DIGITAL GND TERMINAL
11 DATA SUBCODE P-W DATA OUTPUT TERMINAL
12 SFSY PLAY DEVICE FRAME SYNC SIGNAL OUTPUT TERMINAL
13 SBSY SUBCODE BLOCKING OUTPUT TERMINAL
14 SPCK OUTPUT TERMINAL FOR PROCESS STATUS SIGNAL READ CLOCK
15 SPDA PROCESS STATUSE OUTPUT TERMINAL
16 COFS ERROR CORRECTION CLOCK (7.35 KHz)OUTPUT TERMINAL
17 MONIT LSI INTERNAL SIGNAL MOMITOR TERMINAL
18 VDD5 DIGITAL + 5V POWER TERMINAL
19 TESTIOO TEST INPUT TERMINAL
20 AWRC ANALOG SIGNAL OUTPUT TERMINAL
21 PVDD3 +3.3V POWER TERMINAL FOR PLL-EXCLUSIVELY
22 PDOS POSITION GAP SIGNAL OUTPUT TERMINAL OF EFM & PLCK SIGNALS
23 PDO POSITION GAP SIGNAL OUTPUT TERMINAL OF EFM & PLCK SIGNALS
24 TMAXS TMAX DETECTION RESULT OUTPUT TERMINAL
25 TMAX TMAX DETECTION RESULT OUTPUT TERMINAL
26 LPFN AMP REVERSE INPUT TERMINAL FOR LOW-PASS FILTER
27 LPFO AMP OUTPUT TERMINAL FOR LOW-PASS FILTER
28 PVREF VREF(+1.65V) FOR PLL ONLY
29 VCOREF VCO CENTER FREQUENCY BASE LEVEL TERMINAL
30 VCOF VCO FILTER TERMINAL
31 AVSS3 ANALOG GNDTERMINAL
32 SLCO DATA SLICE GENERATING DIGITAL/ANALOG CONVERT OUTPUT TERMINAL
33 RFI RF SIGNAL INPUT TERMINAL
34 AVDD3 ANALOG +3.3V POWER TERMINAL
35 RFCT RFRP SIGNAL CENTER LEVEL INPUT TERMINAL
36 RFZI INPUT TERMINAL FOR RFRO ZERO CROSS
37 RFRP RF RIPPLE SIGNAL INPUT TERMINAL
38 FEI FOCUS ERROR SIGNAL INPUT TERMINAL
39 SBAD SUBBEAM ADDITION SIGNAL INPUT TERMINAL
40 TEI TRACKING ERROR SIGNAL INPUT TERMINAL
41 TEZI TRACKING ERROR ZERO CROSS INPUT TERMINAL
42 FDO FOCUS EQ. OUTPUT TERMINAL
43 TRO TRACKING EQ. OUTPUT TERMINAL
44 VREF ANALOG-BASED POWER TERMINAL(+1.65V)
45 RFGC RF AMPLITUDE CONTROL SIGNAL OUTPUT TERMINAL
46 TEBC TRACKING BALANCE CONTROL SIGNAL OUTPUT TERMINAL
47 FMO FEED EQ. OUTPUT TERMINAL
48 FVO SPEED ERROR OR FEED SEARCH OUTPUT TERMINAL
49 DMO DISK EQ OUTPUT TERMINAL
50 VSS3 DIGITAL GND TERMINAL
NO SYMBOL
51 VDD3 DIGITAL +3.3V POWER SOURCE TERMINAL
52 SEL APC CIRCUIT ON/OFF SIGNAL OUTPUT TERMINAL
53 FLGA INTERNAL SIGNAL MONITOR OUTER FLAG OUTPUT TERMINAL
54 FLGB INTERNAL SIGNAL MONITOR OUTER FLAG OUTPUT TERMINAL
55 FLGC INTERNAL SIGNAL MONITOR OUTER FLAG OUTPUT TERMINAL
56 FLGD INTERNAL SIGNAL MONITOR OUTER FLAG OUTPUT TERMINAL
57 VDD3 DIGITAL +3.3V POWER TERMINAL
58 VSS3 DIGITAL GND TERMINAL
59 I00 GENERAL I/O TERMINAL
60 I01 GENERAL I/O TERMINAL
61 I02 GENERAL I/O TERMINAL
62 I03 GENERAL I/O TERMINAL
63 /DMOUT IO 0,1 OUTPUT MODE SELECT TERMINAL
64 /CKSE "X" TAL SELECT TERMINAL
65 /DACT DIGITAL/ANALOG CONVERT TEST MODE TERMINAL
66 FGIN CAV GENERATION FG SIGNAL INPUT TERMINAL
67 TESI01 TEST INPUT TERMINAL
68 TESIN TEST INPUT TERMINAL
69 TEST0 TEST MODE TERMINAL
70 TEST1 TEST MODE TERMINAL
71 TEST2 TEST MODE TERMINAL
72 XVSS3 MICOM CLOCK DRIVING CIRCUIT GND TERMINAL
73 XI MICOM CLOCK DRIVING CIRCUIT INPUT TERMINAL
74 XO MICOM CLOCK DRIVING CIRCUIT OUTPUT TERMINAL
75 XVDD3 MICOM CLOCK DRIVING CIRCUIT +3.3V POWER TERMINAL
76 DVSS3 D/A CONVERT R CHANNEL ANALOG GND TERMINAL
77 RO R CHANNEL DATA OUTPUT TERMINAL
78 DVDD3 DIGITAL/ANALOG CONVERT +3.3V POWER TERMINAL
79 DVR DIGITAL/ANALOG CONVERT BASE VOLTAGE TERMINAL
80 LO L CHANNEL DATA OUTPUT TERMINAL
81 DVSS3 D/A CONVERT L CHANNEL ANALOG GND TERMINAL
82 TEST3 TEST MODE TERMINAL
83 TEST4 TEST MODE TERMINAL
84 BUS0 DATA INPUT TERMINAL FOR MICOM INTERFACE
85 BUS1 DATA INPUT TERMINAL FOR MICOM INTERFACE
86 BUS2 DATA INPUT TERMINAL FOR MICOM INTERFACE
87 BUS3 DATA INPUT TERMINAL FOR MICOM INTERFACE
88 VDD5 DIGITAL 5V POWER SOURCE TERMINAL
89 VSS5 DIGITAL GNDTERMINAL
90 /XRD READ SIGNAL FOR MICOM INTERFACE
91 /XWR WRITE SIGNAL FOR MICOM INTERFACE
92 /XCM FIRST WORD RECOGNIZE SIGNAL FOR MICOM INTERFACE
93 /XCE MICOM INTERFACE CHIP ENABLE TERMINAL
94 TEST5 TEST MODE SELECT TERMINAL
95 /RST RESET INPUT TERMINAL
96 /HSO PLAY SPEED MODE FLAG OUTPUT TERMINAL
97 /UHSO PLAY SPEED MODE FLAG OUTPUT TERMINAL
98 /SHSO PLAY SPEED MODE FLAG OUTPUT TERMINAL
99 EMPH EMPHASIS FLAG OUTPUT TERMINAL OF SUBCODE QDATA
100 LRCK CHANNEL CLOCK (44.1KHz) OUTPUT TERMINAL
31
DESCRIPTIONS