Panasonic PVD4742 - DVD/VCR DECK, Service Manual

Page: 100 / 214

NOTE:
FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES,
REFER TO BEGINNING OF SCHEMATIC SECTION.
NOTE:
PARTS ENCLOSED IN DASHED LINES MARKED "PT" ARE NOT USED.
NOTE: For placing a purchase order of the parts,
be sure to use the part number listed in the parts list.
Do not use the part number on this diagram.
Pin No. I/O
1 POWER_DOWN_L POWER DOWN(L)
Description
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
Pin No. I/O
I
I
O
O
O
O
-
O
60
Signal Name Signal Name Description
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I
I
I
I
I
-
O
E/V-MASK
T-REEL
S-REEL
IR-DATA
E/V-MASK
TAKEUP REEL PULSE
SUPPLY REEL PULSE
IR-DATA
NC
LD_CTL
(Not used)
LOADING MOTOR CONTROL REVERSE(L)/STOP(M)/FORWARD(H)
O H-RDY HOST READY(H)
O DVD_RST_L DVD RESET(L)
O
O
-
O
I
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
O
O
I
-
-
O
O
-
O
-
O
I
O
O
I/O
TV_L/VCR_H
SCK_1
NC
MASTER_DATA_1
TV(L)/VCR(H)
SERIAL CLOCK 1
(Not used)
SERIAL DATA 0
SCK_0
SI
SO
DVD SERIAL CLOCK
DVD SERIAL DATA 1
DVD SERIAL DATA 0
IIC_DATA I2C SERIAL DATA
I2C SERIAL CLOCK IIC_CLK
INPUT2 INPUT SELECT 2
DEFEAT_H AUDIO DEFEAT(H)
CAP_R/F CAPSTAN MOTOR REVERSE(H)/FORWARD(L)
A-MUTE_H AUDIO MUTE(H)
HSW HEAD SW
V-LOCKPLS V-LOCK PULSE
RST RESET
1/4_OSC
Hi-Fi HEAD SW
3.58MHz
HIFI-HSW
V-D-REC_H VIDEO DELAY REC(H)
HIFI-PB_H Hi-Fi PB(H)
S-TAB SAFETY TAB BROKEN(H)
VIDEO MUTE(H)
VCR+(L)
VIDEO_MUTE_H
W/VCR+_L
PWM1(CAP)
PWM0(CYL)
CAP ERROR
CYL ERROR
PANE_CLK PANEL CLOCK
DVDD
DVSS
VDD
OSC_OUT
OSC_IN
OSC 2
OSC 1
GND
ANGLE_LED_H
VCR_LED_H VCR LED ON(H)
ANGLE LED ON(H)
SXI SXI
VCR_REC_LED_H
DVD_LED_H
NC
DVD_AUDIO_SW_H
VCR REC LED ON(H)
DVD LED ON(H)
(Not used)
DVD AUDIO CONTROL ON(H)
CV_OUT VIDEO
VIDEO
OSD_VSS GND
CV_IN
CV_IN2 V-SYNC
OSD_VDD VDD
AFCC AFC
AFCLPF AFC
PANE_CS PANEL CS(L)
3CH_HIZ/4CH_L CH3(H)/CH4(L)
BLACK_H BLACK DETECT(H)
O SW_MUTE_H SW MUTE(H)
O DVD_SEL_H DVD SELECT(H)
O DVD_PWR_ON_H DVD POWER ON(H)
I D-RDY DVD READY(H)
O PROGRESSIVE_LED_ON_H PROGRESSIVE LED ON(H)
O PROGRESSIVE_SW_ON_H PROGRESSIVE ON(H)
I CPN_SEL_L COMPONENT SELECT(L)
O
-
-
-
-
-
-
-
I
I
I
I
I
I
I
I
I
O
I
I
I
O
O
O
I/O
W/CANADA_L
PFG CYL PG/FG
NC (Not used)
FGF CAP FG
CAP FG AFG
VRO V-REF 1
VRI V-REF 2
AVSS GND
CTLA CTL AMP
AVDD VDD
RCTLP CTL PULSE(+)
RCTLN CTL PULSE(-)
CO PB CONTROL PULSE
NC (Not used)
(Not used)
I KEY5 KEY DATA 5
T-PHOTO_L
S-PHOTO_L
TAKEUP PHOTO TR(L)
SUPPLY PHOTO TR(L)
DTS-AFC AFC
MTS_MODE MTS MODE
POWER-ON_L POWER ON(L)
W/CMA_L CM ADVANCE(L)
AT_ENV ENV-VOLTAGE
KEY4 KEY DATA 4
I KEY3 KEY DATA 3
I KEY2 KEY DATA 2
I KEY1 KEY DATA 1
- W/ALL_SET_L (Not used)
O
I
POWER_ON_H POWER ON(H)
BLACK_DET_A AUDIO BLACK DETECT(L)
BLACK_DET_V
C/R/SS-L
VIDEO BLACK DETECT(L)
CUE/REV/SS(L)
POS.3 MODE SW POSITION C
I POS.2 MODE SW POSITION B
I
I
POS.1 MODE SW POSITION A
ROT ROTARY SW
HAMP HEAD AMP SW
DENV ENVELOPE DET
CAPSTAN MOTOR ASS’Y
CAPSTAN
MOTOR
DRIVE CAPSTAN
MOTOR
COIL
1 LDM OUT 2
CN3
LDM OUT 1
2
TO LOADING
MOTOR
LOADING
MOTOR
M
LDM OUT1 LDM OUT 2
L H CCW
L L STOP
H L CW
7 U PHASE
CN2
V PHASE 6
5 W PHASE
COIL COMMON 4
3 MOTOR GND
PG OUTPUT 2
PG GND 1
(TO CYLINDER)
HALL
IC
CYLINDER
MOTOR
LOADING
MOTOR
DRIVE
CYLINDER
MOTOR
DRIVE
MOTOR
POSITION
DET
CYLINDER
PG PULSE
GENERATOR
DIFFERENTIAL
AMP
POSITION
SIGNAL
PROCESS
CAPSTAN
FG PULSE
GENERATOR
HALL
ELEMENT
HALL
ELEMENT
HALL
ELEMENT
1 CAPSTAN MOTOR REVERSE(H)/FORWARD(L)
CN1
MOTOR GND
CAPSTAN FG OUTPUT
VCC(14V) FOR CAPSTAN MOTOR
CURRENT LIMIT FOR CAPSTAN MOTOR
VCC(5V)
CYLINDER PG/FG OUTPUT
CYLINDER SPEED CONTROL
CAPSTAN MOTOR SPEED CONTROL
VCC(14V) FOR CYLINDER & LODING MOTOR
SIGNAL GND
LODING MOTOR CONTROL REVERSE(L)/STOP(M)/FORWARD(H)
2
3
4
5
6
7
8
9
10
11
12
TO MAIN C.B.A.
P6201
(CAPSTAN / CYLINDER / LOADING MOTOR DRIVE IC)
FG
PG
MR
HEAD
PV-D4742
I/O CHART OF IC6001
I/O CHART OF IC6001
NOTE:
CAPSTAN MOTOR ASS'Y (REF. NO. 46) IS SUPPLIED AS A UNIT ONLY.
HOWEVER, THE FLAT FLEXIBLE CABLE (REF. NO. 48) IS AVAILABLE SEPARATELY AS A REPLACEMENT PART.