JVC DR-MV1SUC Service Manual page 51

CPU PIN FUNCTION
<SYSCON IC3001>
PIN NO. LABEL IN/OUT FUNCTION
1 CTL[+] IN/OUT CTL(+) SIGNAL
2 SVss - GND
3 CTL[-] IN/OUT CTL(-) SIGNAL
4 CTLBIAS - CTL BIAS VOLTAGE
5 CTLFB IN CTL PULSE FEEDBACK
6 CTLAMPOUT OUT CTL PULSE OUTPUT
7 CTLSMTIN IN CTL PULSE OUTPUT
8 CFG IN CAPSTAN FG PULSE INPUT
9 SVcc - SYSTEM POWER
10 Avcc - SYSTEM POWER
11 NORM/MESEC/S_DET IN SQPB:H/MESECAM:M/NORMAL:L
12 WIDE_DET2/AFC2 IN NOT USED/TUNING CHECK
13 LSA IN MECHANISM MODE DETECT (A)
14 START_SENSOR IN START SENSOR
15 END_SENSOR IN END SENSOR
16 LSB IN MECHANISM MODE DETECT (B)
17 LSC IN MECHANISM MODE DETECT (C)
18 LED/RF_AGC IN DETECT THE MTS MODE
19 WIDE_DET IN S1/S2 DETECT
20 BS_ANT/AFC IN TUNING CHECK
21 VIDEO_ENV IN AUTO TRACKING DTECT/INPUT THE AVERAGE OF PLAYBACK VIDEO SIGNAL
22 A.ENV/ND[L] IN AUDIO PB FM ENV.INPUT/NON HiFi MODE:L
23 Avss - GND
24 CTL_GAIN/TEST OUT CONTROL AMP OUT FREQUENCY RESPONSE SWITCHIN
25 A.MUTE_VDR[H] OUT AUDIO MUTE CONTROL FOR VDR(MUTE:H)
26 P.MUTE_VDR[H] OUT PICTURE MUTE CONTROL FOR VDR(MUTE:H)
27 C.BIAS2/CONV_CTL OUT ADD THE DC BIAS TO COLOR OUTPUT/RF CONVERTER CONTROL
28 CAP.M_F/R OUT CAPSTAN MOTOR REVERSE CONTROL (FWD:L/REV:H)
29 RC_IN IN REMOTE CONTROL DATA INPUT
30 INPUT_SEL1 OUT VIDEO SIGNAL INPUT SELECT
31 GR_ON[L] - NOT USED
32 BS_REC_LINK/COMPU_IN - NOT USED
33 INPUT_SEL5/COMPU_OUT - NOT USED
34 INPUT_SEL2 OUT VIDEO SIGNAL INPUT SELECT
35 LM_F/R/S[LMC1] OUT LOADING MOTOR DRIVE
36 LSD[LMC2] IN MECHANISM MODE DETECT (D)
37 BS_P.CTL[H]/EDS_CS[L] OUT EDS CHIP SELECT
38 SB_GAIN[PWM] OUT VOLTAGE CONTROL SIGNAL FOR VIDEO FREQUENCY RESPONSE
39 STB OUT CLOCK OUTPUT PERMISSION
40 POWER_DET IN DETECTION SIGNAL FOR POWER DOWN OF AC POWER SUPPLY
41 REC_SAFETY IN REC SAFETY SWITCH DETECT (SW ON:L)
42 PROTECT IN DETECTION VOLTAGE FOR SW POWER SUPPLY
43 Vss - GND
44 C_BIAS1/RMO OUT ADD THE DC BIAS TO COLOR OUTPUT
45 Vcc - SYSTEM POWER
46 KBUS_DATA_IN IN SERIAL DATA TRANSFER INPUT FROM DVD CPU
47 KBUS_DATA_OUT OUT SERIAL DATA TRANSFER OUTPUT TO DVD CPU
48 KBUS_CLK OUT SERIAL DATA TRANSFERMER CLOCK FOR DVD CPU
49 12C_DATA_AV OUT SERIAL DATA TRANSFER OUTPUT FOR AV IC
50 12C_CLK_AV IN/OUT SERIAL DATA TRANSFER CLOCK FOR AV IC
51 S.DATA_TO_SYS IN SERIAL DATA TRANSFER OUTPUT FROM THE ON-SCREEN TO THE FDP DRIVER
52 S.DATA_FR_SYS OUT SERIAL DATA TRANSFER OUTPUT FROM THE FDP DRIVER TO THE ON-SCREEN
53 S.CLK OUT SERIAL DATA TRANSFERMER CLOCKFOR ONSCREEN IC
54 SP_FG IN DETECTION SIGNAL FOR SUPPLY REEL ROTATION/TAPE REMAIN
55 TU_FG IN DETECTION SIGNAL TAKE-UP REEL ROTATION/TAPE REMAIN
56 KBUS_REQ(IN) OUT SERIAL DATA TRANSFER REQUEST TO DVD CPU
PIN NO. LABEL IN/OUT FUNCTION
57 BS_12C_CLK - NOT USED
58 N.REC_ST[H] OUT NORMAL AUDIO SOUND RECORDING START
59 JUST_CLOCK/EDS[H] IN VIDEO SIGNAL FIELD DETECT
60 TU_12C_DATA OUT DATA OUTPUT TO TUNER
61 TU_12C_CLK OUT CLOCK OUTPUT TO TUNER
62 FWE - FLASH WRITE ENABLE
63 NMI - NOT USED
64 X2 - TIMER CLOCK(32kHz)
65 X1 - TIMER CLOCK(32kHz)
66 RES - RESET TERMINAL(RESET ON:L)
67 OSC1[IN] IN MAIN SYSTEM CLOCK(10MHz)
68 Vss - GND
69 OSC2[OUT] IN MAIN SYSTEM CLOCK(10MHz)
70 Vcc - SYSTEM POWER
71 MODE - NOT USED
72 SYNC_DET[H] IN DETECTION OF VIDEO SYNC SIGNAL (DETECTED : H)
73 S.CASS[H] IN DETECTION SIGNAL FOR SVHS CASSETTE(SVHS:H)
74 A.MUTE_VHS[H] OUT AUDIO MUTE CONTROL FOR VHS(MUTE:H)
75 12C_CLK2 OUT SERIAL DATA TRANSFER CLOCK FOR MEMORY IC
76 12C_DATA2 IN/OUT SERIAL DATA TRANSFER OUTPUT FOR MEMORY IC
77 BS_12C_DATA - NOT USED
78 SYNC_DET_VDR[L] IN DETECTION OF VIDEO SYNC SIGNAL FOR VDR (DETECTED : L)
79 EXP_CLK OUT EXPANDER IC DATA TRANFER CLOCK
80 I.MUTE[L] OUT INTERFACE VIDEO SIGNAL MUTING CONTROL OUTPUT
81 TRICK[H] OUT SLOW/STILL/SEARCH MODE : H
82 Vcc - SYSTEM POWER
83 A.MUTE[H] OUT AUDIO MUTE CONTROL (MUTE:H)
84 Vss - GND
85 SP_SHORT[H] OUT MODE SELECT
86 SLOW_PULSE - NOT USED
87 VP_CTL - NOT USED
88 H.REC_ST[H] OUT HiFi AUDIO SOUND RECORDING START
89 LINE2INFO - NOT USED
90 ANT_CTL/CH_SW OUT NOT USED/RF CONVERTER CHANNEL SELECT
91 OSD_CS OUT ONSCREEN IC CHIP SELECT
92 E5_RESET OUT RESET OUTPUT TO IC1401
93 HI_S.FFREW OUT HIGH SPEED FF/REW CONTROL
94 ADC_RST[L] OUT STEREO A/D CONVERTER RESET PULSE
95 EXP1_DATA OUT SERIAL DATA TO EXPAND IC
96 P.SAVE[L] OUT POWER SAVE MODE:H
97 P.CTL[H] OUT POWER ON/OFF CONTRPL (POWER ON:H)
98 C.SYNC IN COMPOSITE SYNC INPUT
99 A.FF OUT AUDIO FF OUTPUT
ROTATION DETECTION SIGNAL FOR DRUM MOTOR
100 V.FF OUT
/TIMING CONTROL SIGNAL FOR REC
101 CAPPWM OUT CAPSTAN MOTOR CONTROL
102 DRUMPWM OUT DRUM MOTOR CONTROL
103 BIT_IN[H] - NOT USED
104 P.MUTE_VDR[L] OUT PICTURE MUTE CONTROL FOR DVD (MUTE ON:L)
105 ET_REC[H] OUT S-VHS ET REC MODE:H
106 P.MUTE_VHS[L] OUT PICTURE MUTE CONTROL FOR VHS (MUTE ON:L)
107 DFG IN DRUM FG PULSE INPUT
108 DFG IN DRUM FG PULSE INPUT
109 Vcc - SYSTEM POWER
110 V.PULSE OUT V.PULSE ADDITION TIMING CONTROL
111 Vss - GND
112 CTLREF - CTL REFERENCE VOLTAGE
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SYSTEM CONTROL BLOCK DIAGRAM
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