Waveforms - JVC HM-DH30000U Service Manual

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4.34

WAVEFORMS

< SYSCON >
CN3003-2 CN3001-4
WF1 CAP_FG WF2 D.PG
REC/PB 3.2 Vp-p REC/PB 4.8 Vp-p
50 mV/0.5 msec/DIV 0.1 V/10 msec/DIV
< AUDIO >
IC1-62
WF2
WF1 IC1-79
REC/PB 1.0 Vp-p
REC 0.24 Vp-p
20 mV/0.5 msec/DIV
5 mV/0.5 msec/DIV
TP2253
WF7 A.PB FM
PB 0.6 Vp-p
50 mV/5 msec/DIV
< VIDEO (MAIN) >
WF1 IC1-27 WF2 IC1-30
PB 2.3 Vp-p PB 0.72 Vp-p
50 mV/20 µsec/DIV 20 mV/20 µsec/DIV
WF7 IC1-14 WF8 IC1-13
PB 0.56 Vp-p REC/PB 0.56 Vp-p
20 mV/20 µsec/DIV 20 mV/20 µsec/DIV
WF3 CN7104-5 WF4
CN7104-1
REC/PB 1.3 Vp-p REC/PB 2.3 Vp-p
50 mV/20 µsec/DIV 50 mV/20 µsec/DIV
WF3 CN511-11 WF4 CN511-12
REC/PB 0.8 Vp-p REC 0.6 Vp-p/PB 0.7 V p-p
20 mV/20 µsec/DIV
20 mV/20 µsec/DIV
WF9 CN511-29 WF10 CN511-30
PB 0.6 Vp-p REC 0.76 Vp-p
20 mV/20 µsec/DIV 20 mV/20 µsec/DIV
CN3001-5 TP4001
IC3001-1
WF3 D.FG WF4 CTL.P WF5 CTL(+)
REC/PB 4.6 Vp-p PB 2.3 Vp-p REC 4.0 Vp-p
0.1 V/10 msec/DIV 50 mV/10 msec/DIV 0.1 V/10 msec/DIV
WF3 IC1-52 WF4 IC1-48 WF5 IC1-119
REC 0.22 Vp-p PB 0.76 Vp-p REC 0.96 Vp-p
2 mV/0.5 msec/DIV 20 mV/0.5 msec/DIV 20 mV/0.5 msec/DIV
TP106
WF3 PB FM WF4 IC1-1 WF5 IC1-112
REC/PB 0.3 Vp-p
PB 0.7 Vp-p PB 0.7 Vp-p
0.1 V/10 msec/DIV
50 mV/5 msec/DIV 20 mV/5 msec/DIV
< VIDEO (TERMINAL) >
WF9 IC1-11 CN7104-9
WF10 IC1-16 WF1
REC/PB 0.56 Vp-p REC 0.76 Vp-p
REC/PB 2.2 Vp-p
20 mV/20 µsec/DIV 20 mV/20 µsec/DIV
50 mV/20 µsec/DIV
< VIDEO (S-SUB) >
WF5 CN7104-7 WF1 CN511-9 WF2-1 CN511-10
REC/PB 1.2 Vp-p PB 1.5 Vp-p
REC 1.8 Vp-p
50 mV/20 µsec/DIV 50 mV/20 µsec/DIV
50 mV/20 µsec/DIV
CN511-13 WF6 CN511-17 CN511-25
WF5 WF7
PB 2.2 Vp-p REC/PB 2.4 Vp-p
PB 0.7 Vp-p
20 mV/20 µsec/DIV 50 mV/20 µsec/DIV 50 mV/20 µsec/DIV
CN512-6 CN512-12
WF12 WF13
WF11 CN512-4
REC/PB 2.3 Vp-p REC 0.7 Vp-p
REC/PB 1.5 Vp-p
50 mV/20 µsec/DIV 50 mV/20 µsec/DIV 20 mV/20 µsec/DIV
4.35 CPU PIN FUNCTION
IC3001-98
<SYSCON IC3001>
WF6 C.SYNC
PIN NO. LABEL IN/OUT
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
REC/PB 4.2 Vp-p
0.1 V/20 µsec/DIV
6 CTLAMPOUT OUT CTL PULSE OUTPUT
7 CTLSMTIN IN CTL PULSE INPUT
WF6 IC1-97
8 CFG IN CAPSTAN FG PULSE INPUT
9 SVcc - SYSTEM POWER
10 Avcc - ANALOG POWER
11 LED/RFAGC/LOCK IN NC/NC/TUNING PLL LOCK DETECT:L
12 BS_ANT/AFC IN NC/TUNING CHECK
13 END SENSOR IN END SENSOR
REC 1.5 Vp-p
14 IND(L) IN AUDIO INPUT(L CH) FOR THE FDP AUDIO INDICATOR
50 mV/5 msec/DIV
15 IND(R) IN AUDIO INPUT(R CH) FOR THE FDP AUDIO INDICATOR
16 A.ENV/ND(L) IN AUDIO PB FM ENV. INPUT/NON HiFi MODEL:L
17 START SENSOR IN START SENSOR
18 HS2_ENV IN AT DETECTION
19 VIDEO ENV IN AUTO TRACKING DETECT/INPUT THE AVERAGE OF PLAYBACK VIDEO SIGNAL
20 D_ENV/HS1_ENV IN PB FM INPUT / AT DETECTION
21 NORM/MESEC/S IN S.VHS MODE:HÅiNORMAL MODE:L/MESECAM MODE:L/NCÅj
22 WAID_DET/SCR_ID IN WIDE ASPECT DETECTION/NC
23 Avss - GND FOR ANALOG CIRCUIT
24 CTL GAIN OUT CONTROL AMP OUT FREQUENCY RESPONSE SWITCHING
WF6 IC1-105
25 LSA IN MECHANISM MODE DETECT(A)
26 LSB IN MECHANISM MODE DETECT(B)
27 LSC IN MECHANISM MODE DETECT(C)
28 CAP REV(L) OUT CAPSTAN MOTOR REVERSE CONTROL (FWD:H/REV:L)
29 RC IN REMOTE CONTROL DATA INPUT
REC 2.4 Vp-p
30 PROTECT IN DETECTION SIGNAL FOR SWITCHING POWER SUPPLY
0.1 V/1 msec/DIV
31 BILSEL/P50I/OSDCE IN NC/CONTROL SIGNAL FOR TV LINK/NC
32 PAUSE/COMPU_IN IN REMOTE PAUSE CONTROL/NC
CN7104-3
WF2
CONTROL SIGNAL FOR TV LINK/CONTROL SIGNAL FOR TV LINK/
33 COMPU/P50_OUT/TEST OUT
MECHA TEST MODE
34 STB OUT STROBE SIGNAL
35 POWER_DET IN DETECTION SIGNAL FOR POWER DOWN OF AC POWER SUPPLY
36 LMC1 OUT LOADING MOTOR DRIVE(1)
37 LMC2 OUT LOADING MOTOR DRIVE(2)
38 LMC3 OUT LOADING MOTOR DRIVE(3)
REC/PB 1.2 Vp-p
50 mV/20 µsec/DIV
39 SB_GAIN OUT VOLTAGE CONTROL SIGNAL FOR VIDEO FREQUENCY RESPONSE
40 D_REC_LEVEL1 OUT LEVEL1 CONTROL SIGNAL OF D-VHS RECORDING
WF2-2 CN511-10 41 D_REC_LEVEL2 OUT LEVEL2 CONTROL SIGNAL OF D-VHS RECORDING
42 D_CASS(H) IN DETECTION SIGNAL FOR D-VHS CASSETTE (DETECTION:H)
43 Vss - GND
44 RMO OUT REMOTE CONTROL OUTPUT FOR SATELLITE RECEIVER
45 Vcc - SYSTEM POWER
SERIAL DATA TRANSFER OUTPUT FROM THE ON-SCREEN IC TO
46 S.DATA TOSYS IN
THE FDP DRIVER
REC/PB 1.8 Vp-p
SERIAL DATA TRANSFER OUTPUT FROM THE FDP DRIVER TO
47 S.DATA FRSYS OUT
50 mV/20 µsec/DIV THE ON-SCREEN IC
SERIAL DATA TRANSMISSION CLOCK FROM THE FDP DRIVER TO
48 S.CLK OUT
THE ON-SCREEN IC
CN511-27
WF8
49 I2C DATA IN/OUT SERIAL DATA TRANSFER OUTPUT FOR THE VIDEO/AUDIO IC
50 I2C CLK OUT SERIAL DATA TRANSFER CLOCK FOR THE VIDEO/AUDIO IC
51 K-BUS_IN IN SERIAL DATA INPUT FOR THE D-VHS HOST CPU
52 K-BUS_OUT OUT SERIAL DATA OUTPUT FOR THE D-VHS HOST CPU
53 K-BUS_CLK OUT SERIAL DATA TRANSMISSION CLOCK FOR THE D-VHS HOST CPU
REC/PB 0.6 Vp-p 54 SP FG IN DETECTION SIGNAL FOR SUPPLY REEL ROTATION/TAPE REMAIN
20 mV/20 µsec/DIV
55 TU FG IN DETECTION SIGNAL FOR TAKE-UP REEL ROTATION/TAPE REMAIN
WF14 CN512-14
56 S_CASS(H) IN DETECTION SIGNAL FOR S-VHS CASSETTE
REC 1.0 Vp-p
20 mV/20 µsec/DIV
Published in Heiloo Holland
4-67 4-68
FUNCTION PIN NO. PIN NO. LABEL LABEL IN/OUT IN/OUT
57 K-BUS_REQ OUT REQUEST OF SERIAL DATA FOR THE D-VHS HOST CPU
58 REC SAFETY IN REC SAFETY SWITCH DETECT (SW ON:L)
59 JUSTCLK/LN21 - NC/NC
60 TU_A_MUTE(H) OUT TUNER AUDIO MUTE CONTROL (MUTE: H)
61 TU_CE OUT CHIP ENABLE OF THE TUNER UNIT
62 FWE - NC
63 NMI - NC
64 X2 - TIMER CLOCK(32kHz)
65 X1 - TIMER CLOCK(32kHz)
66 RES - RESET TERMINAL (RESET ON:L)
67 OSC1(IN) - MAIN SYSTEM CLOCK (10MHZ)
68 Vss - GND
69 OSC2(OUT) - MAIN SYSTEM CLOCK (10MHZ)
70 Vcc - SYSTEM POWER
71 MODE - NC
72 TU_CLK OUT CLOCK FOR DATA TRANSFER TO THE TUNER UNIT
73 TU_DATA OUT TUNING DATA
74 CH1_RECST(H) OUT REC START CONTROL FOR CH1
75 I2C CLK2 OUT SERIAL DATA TRANSFER CLOCK FOR MEMORY IC
76 I2C DATA2 IN/OUT SERIAL DATA TRANSFER OUTPUT FOR MEMORY IC
77 AT_ON OUT D-VHS LS3 REC TIMING CONTROL
78 SLOW_P OUT MEMORY TIMING CONTROL IN THE SLOW MODE
79 FLY_ON (H) OUT FLY REC START: FH
V.PULSE CONTROL,V COMPENSATION DURING SPECIAL
80 VP_CTL OUT
PLAYBACK
81 CH2_RECST(H) OUT REC START CONTROL FOR CH2
82 Vcc - SYSTEM POWER
83 HS_RECST(L) OUT D-VHS HS RECORDING START
84 Vss - GND
85 SP_SHORT(H) OUT MODE SELECT
86 LP_SHORT(H) OUT MODE SELECT
87 H.REC_ST(H) OUT Hi-Fi AUDIO SOUND RECORDING START
88 N.REC_ST(H) OUT NORMAL AUDIO SOUND RECORDING START
89 A.MUTE(H) OUT AUDIO MUTE CONTROL (MUTE ON: H)
90 REF30 IN REFERENCE SIGNAL INPUT (30HZ)
91 REF5 IN REFERENCE SIGNAL INPUT (5HZ)
SERIAL DATA TRANSFER CLOCK FOR AUDIO/VIDEO AND TUNER/
92 EXP_CLK OUT
REG CONTROL
93 EXP_DATA1 IN/OUT SERIAL DATA TRANSFER OUTPUT FOR AUDIO/VIDEO CONTROL
94 EXP_DATA2 IN/OUT SERIAL DATA TRANSFER OUTPUT FOR TUNER/REG CONTROL
95 EXP_DATA3 IN/OUT SERIAL DATA TRANSFER OUTPUT
96 BIT_IN(H)/SECAM_DET - NC/NC
97 SYNC_DET IN DETECTION OF VIDEO SYNC SIGNAL(DETECTED:H)
98 C.SYNC IN COMPOSITE SYNC
99 A.FF/HS2.FF OUT AUDIO FF OUTPUT
ROTATION DETECTION SIGNAL FOR DRUM MOTOR/TIMING
100 D.FF/STD.FF/HS1.FF OUT
CONTROL SIGNAL FOR REC
101 CAPPWM OUT CAPSTAN MOTOR CONTROL
102 DRUMPWM OUT DRUM MOTOR CONTROL
103 HOST_RESET OUT RESET CONTROL FOR D-VHS HOST CPU
104 M.PULSE/EDSCE OUT NC/NC
105 REC_AREA OUT D-VHS REC AREA CTL(STD MODE:H)
106 HI_S_FF_REW OUT DETECTION OF HIGH SPEED FF/REW SIGNAL
107 DPG IN DRUM PICKUP PULSE INPUT (SWITCHING PULSE)
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
29/11/2016
FUNCTION FUNCTION