13
12
11
10
9
8
7
6
5
4
3
2
1
26
14
15
16
17
18
19
20
21
22
23
24
25
27
SW +5V M
(TO MAIN C.B.A. P6201)
CAP VM (+16V)
CAP FG
GND (FG)
TL
CAP ET
CAP F/R
GND (M)
1
2
3
4
5
6
7
8
CNF
PCI
CT2
CT1
CST
GND
VG
R IN
F IN
OUT2 L GND
OUT1
VM2
EC
PG+
PG-
PG OUT
PFG
VCC
COM
VM
M1
M2
RNF
M3
LOWER
SATURATION
PREVENT
CIRCUIT
SOFT
SWITCH
STARTING
CONTROL
LOGIC
TSD
CONTROL
LOGIC
RRE-DRIVE
AMP
AMP
MOTOR
DRIVE
PRE-DRIVE
MOTOR
DRIVE
SIGNAL
GENERATOR
SELECTOR
DIFFERENTIAL
AMP
DIFFERENTIAL
AMP
DIFFERENTIAL
AMP
PG/FG
COMPOSER
15
16
17
22
23
24
25
26
27
21
CAPSTAN
MOTOR
COILS
HALL
HALL
HALL
H3-
H3+
H1-
H1+
H2-
H2+
A1
A2
A3
VH+
MOTOR
DRIVE
DIFFERENTIAL
AMPLIFIRE
TORQUE
CONTROL
TL
AMP
EC
AMP
DEF
AMP
POSITION
SIGNAL
PROCESS
TORQUE
DIRECTION
SELECT
HALL
POWER
VM
TL
EC
ED/S
19
9
10
11
CAPSTAN
FG
HEAD
IC6201
CYLINDER/LOADING MOTOR DRIVE IC-DETAIL BLOCK DIAGRAM
CYLINDER SERVO
CAPSTAN MOTOR ASS'Y BLOCK DIAGRAM
CAPSTAN SERVO
CAPSTAN MOTOR DRIVE IC
NOTE:CAPSTAN MOTOR ASS'Y IS SUPPLIED AS A UNIT ONLY.
I/O CHART OF IC6001
PV-D4754S/PV-D4754S-K
I/O CHART OF IC6001
1
KEY 1
I
KEY DATA 1
2
KEY 2
I
KEY DATA 2
3
KEY 3
I
KEY DATA 3
4
KEY 4
I
KEY DATA 4
5
SAFETY SYL
I
REG12V short detection signal.
6
DTS AFC
I
Input terminal for "S-Curve" of Tuner AFC at channel selecting.
7
S PHOTO
I
Input terminal of the Tape End sensor detection.
*More than 2.6V: Black tape part. *Less than 2.4V: Trans. Tape part.
8
T PHOTO
I
Input terminal of the Tape Beginning sensor detection.
*More than 2.6V: Black tape part. *Less than 2.4V: Trans. Tape part.
9
TR ENV
I
Input terminal of the Video envelope signal.
10 MTS MODE
I
* SAP: More than 2.6V *STEREO: 1.6V - 2.5V
*MONO + SAP: 0.6V - 1.5V *MONO: 0 - 0.5V
11 TL
O
Control terminal for the Capstan current limit.
12 NC
O
Low fix.
13 V L PLS
O
Output terminal for the Artificial V-sync.
14 IR DATA
I
Input terminal for the Remote Controller.
15 D RDY
I
DVD Unit Ready signal for serial communication with DVD.
16 NA PB SW ON L
O
Recording control signal for the Linear Audio.
17 DVD AUDIO SW H
O
Output terminal for DVD audio control.
18 HSW
O
Video head switching signal
*L'/R = "High" *R'/L = "Low"
19 HF HSW
O
Head switching signal for Audio circuit.
20 D REC H
O
Video Delay Rec H
21 BLUE LED ON
O
Front Blue LED ON: H
22 DEFEAT H
O
Input/Output terminal for muting at channel selecting.
23 HIFI ADJ L
O
During Hifi Vco adjustment: "Low"
24 H RDY
O
Host Ready signal for serial communication with DVD.
25 SW MUTE H
O
Output switching MUTE signal.
26 HIFI PB H
I
HiFi playback: "High" Normal playback: "Low"
27 NO S TAB L
I
SAFETY TAB DETECTION
28 A MUTE H
O
Audio muting signal: High = ON
29 3CH Hiz/4CH L
O
CH3: Hiz CH4: L
30 POS 4
I
MODE SW POSITION 4
31 POS 3
I
MODE SW POSITION 3
32 POS 2
I
MODE SW POSITION 2
33 POS 1
I
MODE SW POSITION 1
34 RST L
I
RESET Terminal.
35 OPTION 1
I
Option terminal 1
36 DVD AUDIO SW H
O
(Not used)
37 DVDD
-
VCC (5V) for Digital port.
38 X IN
I
Main clock (12MHz) osc. input terminal.
39 X OUT
O
Main clock (12MHz) osc. output terminal.
40 DVSS
-
Digital GND for OSC circuit.
41 OSC IN3
I
(Not used)
42 OSC OUT3
O
(Not used)
43 SUB CLK ST L
I
5V fix.
44 LC OSC IN
I
Input terminal of the LC Oscillation (For OSD dot clock)
45 LC OSC OUT
O
Output terminal of the LC Oscillation (For OSD dot clock)
46 NUB
-
Connected to the GND (Test terminal "B" in the factory).
47 4FSC LPF
I
OSC Filter connection terminal for Internal sync generator.
48 OSD FSC IN
I
Sub carrier (fsc) input terminal for sync generator.
49 VSS OSD
-
GND terminal for OSD circuit.
50 CV IN
I
Input terminal for composite video signal.
51 BW H/COLOR L
I
BW: "High" Color: "Low"
Pin
No.
Signal Name
I/O
Explanation
52 CV OUT
O
Output terminal for composite video signal.
53 VDD OSD
-
Power supply terminal for OSD.
54 HLF
I
LPF connection terminal for slicer.
55 V HOLD
I
Capacitor connection terminal of the Reference voltage generator
circuit for the slicer.
56 CV IN
I
Composite video signal input terminal for the slicer.
57 NUA
-
Connected to the GND (Test terminal "A" in the factory).
58 DVD RST L
I/O DVD reset signal
59 DVD SEL H
O
Output terminal for DVD/VCR select signal.
60 DVD POWER ON H O
DVD Power ON: H
61 VCR H/TV L
O
TV: L VCR: H
62 PANE CS
O
LED serial chip selector
63 LOADING FWD H
O
Loading motor control terminal.
64 LOADING REV H
O
Loading motor control terminal.
65 HOST DATA
O
Serial data output for DVD.
66 DVD DATA
I
Serial data input for DVD.
67 DVD SCK
I
Serial clock input for DVD.
68 IC DATA OUT
O
Serial data output for VFD.
69 IC DATA IN
I
Low fix.
70 IC DATA CLK
O
Serial clock output for VFD.
71 IIC CLK
O
Serial communication terminal (IIC) for IC3001/FM audio
IC/EEPROM/TUNER.
72 IIC DAT
I/O Serial communication terminal (IIC) for IC3001/FM audio
IC/EEPROM/TUNER.
73 750kHZ/ROM CORE O
During Test Mode 1: 750KHz output
74 CAP F/R
O
The rotation direction control terminal of the capstan driver.
*RVS = "High" *FWD = "Low"
75 VFD ON H
O
*VFD ON: "High" *VFD OFF: "Low"
76 CAP EC PWM
O
Power supply terminal for the capstan motor control.
77 CYL EC PWM
O
Power supply terminal for the cylinder motor control.
78 P DOWN L
I
Input terminal for the power failar detection.
79 S REEL
I
Input terminal of the S.Reel pulse.
80 T REEL
I
Input terminal of the T.Reel pulse.
81 SP L
O
REC/PLAY MODE: SP = "Low"
82 EX FF/REW L
O
Control signal filter select terminal in FF/REW mode.
*During FF/REW: Hi-Z *Except FF/REW: Low
83 P ON H
O
ON/OFF control terminal for the VCR power. Power ON: "High"
84 AIP L
I/O Simplified AI playback ON/OFF control. AI playback ON: "Low"
85 SQPB IN H
I
SQPB input terminal.
86 C FG OUT
O
Output terminal for the Capstan FG AMP signal.
87 C FG IN
I
Input terminal for the Capstan FG AMP signal.
88 AVSS AMP
-
GND for Analogue circuit.
89 OPTION 2
I
Option terminal 2
90 Y PFG IN
I
Input terminal for the Cylinder PG/FG.
91 V REF OUT
O
1/2 VDD reference voltage output terminal for the Analogue AMP.
92 V REF IN
I
1/2 VDD reference voltage input terminal for the Analogue AMP.
93 NC
-
(Not used)
94 CTL-
I/O I/O terminal for the Control head (-).
95 CTL+
I/O I/O terminal for the Control head (+).
96 CTL AMP REF
I
Capacitor connection terminal for reference of the control AMP.
97 CTL OUT
O
Output terminal for the Control AMP.
98 AVDD AMP
-
Power supply terminal for Analogue AMP.
99 AVDD AD
-
Reference power supply terminal for the AD/8bit DA.
100 KEY 5
I
Key input
Pin
No.
Signal Name
I/O
Explanation
Summary of Contents for DoubleFeature PV-D4734S
Page 2: ...2 ...
Page 19: ...CAUTION Disconnect AC plug before disassembly or assembly Fig C2 19 ...
Page 23: ...Fig D1 Fig D2 23 ...
Page 27: ...9 2 DVD SECTION 27 ...
Page 28: ...9 3 CHASSIS FRAME AND CASING PARTS SECTION 28 ...
Page 29: ...9 4 PACKING PARTS AND ACCESSORIES SECTION 29 ...
Page 44: ...44 ...
Page 46: ...46 ...
Page 48: ...48 ...
Page 53: ...53 ...
Page 55: ...55 ...
Page 67: ...67 ...
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Page 95: ...95 ...
Page 96: ...12 SCHEMATIC DIAGRAMS FOR PRINTING WITH LETTER SIZE 96 ...
