8.4.
SYSTEM CONTROL & SERVO SECTION IN MAIN SCHEMATIC DIAGRAM
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
9
10
11
12
P :TO POWER TRANSFORMER SECTION
R :TO POWER SUPPLY/RF SECTION
V :TO LUMINANCE & CHROMINANCE/AUDIO SECTION
:TO Hi-Fi AUDIO SECTION
A
T :TO TIMER SECTION
A
A
A
T
A
V
R
R V A
V
V
V
R
V
V
A
A
IR
PROG
OSD PULSE
SAFETY TAB
MAIN IIC CLOCK
MAIN IIC DATA
CYL HEAD (-)
CYL HEAD (+)
FREQ. ADJ.
SW2
PAL EP
LP
AV2 PB
RFC MUTE
A21
A18
A17
A12
A11
A10
A8
A7
A6
A14
A4
A3
A2
A1
R6045
100K
S1502
VST0325
S-VHS
CASSETTE
R1506
10K
A6
1
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
R2507
270K
R2508
43K
A23
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
60
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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
V
TRACKING ENV.
C6015
16V10
A4
A3
A2
A1
R
AFC S-CURVE
C6016
0.01
R6026
39K
R6022
100
R6025 43K
R6019 10K
TL6010
R6021 27K
R6020 39K
R1501 120
Q1501
PNB2301MBV
(T-PHOTO)
R
R
R
R
R
R
R
R
R
R
N.SW 5V
REG 5V
PS 5V
PS 12V
GND
GND (SYS)
GND (FG)
GND (MOTOR)
GND (CYL)
GND (AV)
Q1502
PNB2301MAV
(S-PHOTO)
SENSOR
D1501
SIR505S
S-VHS SW
A
R6018 4700
B4
B5
B6
B8
B9
B11
B12
B13
B15
R6072
22K
Q6008
2SD601A
(AV1 PB:ON)
QR6001
UN2215
R6073
470K
R6071
18K
D6004
1SS355
R6074
470
R6075
22K
R6076
15K
B1
B2
B3
MODE
SW
S1501
K0G934A-
00002
A
ABS NORMAL
B4
B5
B6
B8
B9
B11
B12
B13
B15
B16
B17
B18
B21
B22
B23
B24
B25
B26
V
V
A
V
V
A
R
V
V
V
V
T
R
R
T
V
A
NORMAL
S-VHS
D.FM REC
ART V/H/N
ET REC
A.HEAD SW
AUDIO DEF
HEAD SW
V.EE
D.A.REC
BIAS
POWER KEY
POWER OFF
FIP
RESET
SHORT DET
OSD VIDEO OUT
V
A
AV1 PB 12V
T
BACK UP 5V
TW2001
R6017
1K
C6013
1
B16
X6002
H0H200-
500011
C6012
15P
C6011
18P
C6010
18P
R6005
0
C6009
18P
X6001
VSX1022
R6004
220K
IC6001
M37970VXMU
CURRENT
LIMIT
F ADJ.
S CAS
A.DUB
TRACKING ENV.
SLP
LP
CPB
AFC S
A MUTE
AV1 PB +12V
N/S/T1/T2
S-PHOTO
T-PHOTO
ABS NORM
SPB /MES /NOR
S-VHS
SECAM ID IN
D.FM REC
ART V/H/N
S SW
AV3 S IN
ET REC
VIDEO H.SW
AUDIO H.SW
A.DEF
TBC MODE
AVPB-H
AVPB-M
GND(D)
20MHz IN
20MHz OUT
+5V(D)
32KHz IN
32KHz OUT
VC OUT
V.EE
LED ON
D.A.REC
BIAS
FM MUTE
FULL ERASE
POWER KEY
POS.SW3
POS.SW2
POS.SW1
POWER OFF
FIP
P50 IN
LC.OSC IN
LC.OSC OUT
RESET
4FC LPF
OSD FSC IN
+5V(OSD)
CV IN
GND(OSD)
LECA
MD0
CV OUT
HLF
V HOLD
CV IN
(EDS)
PAL-I/BG/DK
SECAM/PAL
AD V
OSD PULSE
NAVI DATA
IR
P50 OUT
CAP ET
CYL ET
CAP F/R
125Hz
FLD CS
FLD/T2
CLOCK
FLD/T2
DATA IN
FLD/T2
DATA OUT
5P CLOCK
5P DATA IN
5P DATA OUT
T-REEL
PULSE
S-REEL
PULSE
DAVN
EEP WR
MAIN IIC CLOCK
MAIN IIC DATA
OSD IIC CLOCK
OSD IIC DATA
FG AMP OUT
FG AMP IN
GND(A)
GND
PFG
O REF
I REF
GND
CTL HEAD(-)
CTL HEAD(+)
CTL AMP REF
PB CTL OUT
+5V(A)
+5V(AD)
TW2002
C2513
3900P
C2508
0.1
A7
A8
R6031
6800
C6017
680P
C2512
25V4.7
C2511
6V22
A25
A26
D2501
MA165
D2502
MA165
R2506
1M
C2510
33P
TW2015
R2505
3900
C2509
0.47
A27
R6036 470
A28
R6035 470
A10
R6015 470
A11
R6014 470
A29
A30
R6030
4700
A12
R6024 4700
R6028 220
R6027 220
R6010 4700
TL6013
TL6012
B17
B18
B19
B21
B2
B1
B3
B22
B23
R1505 100
B24
R6041
1500
R6040
1K
R6012 220
R6011 220
R6013 220
TW6002
TL2503
A23
A21
A18
A17
R2502
2200
C2506
0.056
R2501
0
C2507
0.056
C2505
0.056
R2503
10K
R2504
10K
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C6022
220P
R6039
1K
R6008 47K
C6014 1000P
B25
B26
Q6002
2SB709A
(AMP)
R1504
27K
R1503
27K
3
4
2
1
IC1502
RPI354N
(S-REEL)
3
(T-REEL)
4
IC1501
RPI354N
2
1
R1502
180
TL2502
CAPSTAN SERVO SPEED LOOP
CAPSTAN SERVO PHASE LOOP
CYLINDER SERVO SPEED LOOP
CYLINDER SERVO PHASE LOOP
C1501
0.1
1
2
3
4
R6029
4700
R6081 220
C6023
1
R6001 4700
A
AV3 S-VHS IN
B19
A
MUTE
V
A14
R6016 2200
C6026
0.1
R6033
8200
L6003
220u
C6018
0.022
5
4
3
1
2
QR6002
XN1212
(A.DUB :ON)
R6032
1K
C6019
0.1
R6023 27K
C2514
0.1
B14
B14
V
TBC MODE O
V
FULL ERASE
B20
L6005
68u
C6024
6V220
A31
B20
R6002
1K
C6005
0.01
C6003
470P
C6004
0.01
R6009
22K
R6043
0
C13
C6036
56P
R6077
1M
R6078
470
C6035
1
C14
C15
C16
C17
C6020
1
EE
A9
V
A9
H
L
H
H
H
L
(AV1 PB :OFF)
L
H
L
H
H
H
H
L
H
L
H
L
L
L
L
H
H
H
H
H
H
M
L
H
H
L
L
H
H
L
M
L
H
H
L
H
H
H
L
L
20Hz
START H
SHORT DN L
UNLOADING H
LOADING H
SLEEP L
PROG H
NAVI H
P FAIL L
BW H
HALF WAVE H
S TAB
L
EX.FF/REW
L
N
H
L
H
H
H
L
EE
L
NV-HS880EG/B/EC/EE SYSTEM CONTROL & SERVO SECTION SCHEMATIC DIAGRAM
40
Summary of Contents for NV-HS880EG
Page 16: ...4 REMOVAL OF THE MAIN C B A Remove Screw F Remove 4 Screws G Unlock 2 Tabs H Fig D5 16 ...
Page 23: ...3 3 8 CIRCUIT BOARD LAYOUT 23 ...
Page 26: ...10 2 CASING PARTS SECTION 26 ...
Page 27: ...10 3 PACKING PARTS SECTION 27 ...
Page 28: ...11 REPLACEMENT PARTS LIST 11 1 CHASSIS PARTS SECTION PARTS LIST 28 ...
Page 41: ...D7501 MAZ4220NMF DIODE MAVD 41 ...
Page 43: ...K7301 ERJ6GEY0R00V M RESISTOR CH 1 10W 0 D0GBR00JA017 43 ...
Page 46: ...Q1104 2SD1992A R TRANSISTOR 46 ...
Page 48: ...R0715 ERJ3GEYJ223 M RESISTOR CH 1 16W 22K 48 ...