JVC C-N14310/S Schematics
C-N14310
STANDARD CIRCU IT DIAGRAM
NOTE ON USING CIRCUIT DIAGRAMS
1.SAFETY
The components identified by the symbol and shading are
critical for safety. For continued safety replace safety critical
components only with ma nu factures recommended parts.
2.SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under the
following conditions.
(1)Input signal : Color bar signal
(2)Setting positions of
each knob/button and
variable resistor
(3)Internal resistance of tester
:DC 20k
/V
(4)Oscilloscope sweeping time
:H
20µS/div
:V
5mS/div
:Others
Sweeping time is
specified
(5)Voltage values
:All DC voltage values
Since the voltage values of signal circuit vary to some extent
according to adjustments, use them as reference values.
3.INDICATION OF PARTS SYMBOL [EXAMPLE]
In the PW board
:R1209
R209
4.INDICATIONS ON THE CIRCUIT DIAGRAM
(1)Resistors
Resistance value
No unit :[
]
K
:[K
]
M
Rated allowable power
No indication :1/ 16 [W]
Others :As specified
Type
No indication
:Carbon resistor
OMR
:Oxide metal fil m r esistor
MFR
:Meta l film resistor
MPR
:Metal plate resistor
UNFR
:Uninflammable resistor
FR
:Fusible resistor
Composition resistor 1/2 [W] is specif ied a s 1/2S or Co mp.
(2)Capacitors
: Original setting position
when shipped
5.NOTE FOR REPAIR ING S ERVI CE
This mod el's power cir cuit is pa rtly diffe rent in the GND. The
difference of the GND is shown by the LIVE : ( ) side GND and the
ISOLATED(NEUTRAL) : ( ) side GND.Therefore, care must be
taken for the following points.
(1)Do not touch the LIVE side GND or the LIVE side GND and the
ISOLATED(NEUTRAL) side GND simultaneously. If the above
caution is not respected, an electric shock may be caused.
Therefore, make sure that the power cord is surely removed from
the receptacle when, for example, the chassis is pulled out.
(2)Do not short between the LIVE side GND and ISOLATED(NEUTRAL)
side GND or never measure with a measuring apparatus measure
with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND
and ISOLATED(NEUTRAL) side GND at the same time.
If the above precaution is not respected , a fuse or any parts will be broken.
Since the circuit diagram is a standard one, the ci rcuit and
circuit constants may be subject to change for improvement
without any notice.
NOTE
Due improvement in performance, some part numbers show
in th e ci rcui t diag ram may not agre e w ith th ose indi cate d in
the part list.
When ordering parts, pl ease use t he numbers that appear
in the Pa rts List.
Type
MM
:Metalized mylar capacitor
PP
:Polypropylene capacitor
MPP
:Metalized polypropylene capacitor
MF
:Metalized film capacitor
TF
:Thin film capacitor
BP
:Bipolar electrolytic capacitor
TAN
:Tantalum capacitor
(3)Coils
No unit
:[
µ
H]
Others
:As specified
(4)Power Supply
:B1
:9V
:5V
Respective voltage values are indicated
(5)Test point
:T est point
:Only test point display
(6)Connecting method
:Connector
:Wrapping or soldering
:Receptacle
(7)Ground symbol
:LIVE side ground
:ISOLATED(NEUTRAL) side groun d
:EARTH ground
:DIGITAL ground
:[M ]
Capacitance value
1 or higher :[pF]
less than 1
:[µF]
Withstand voltage
No indication :DC50[V]
Others :DC withstand voltage [V]
AC indicated
:AC withstand voltage [V]
Electrolytic Capacitors
47/50[Example]:Capacitance value [µF]/withstand voltage[V]
No indication
:Ceramic capacitor
:B2 (12V)
C-N14310
/S
CHANNEL CHART
MODE CHANNEL
TV CATV
2-12
BAND
VL 04
VH 10
MID
SUPER Q
HYPER
ULTRA
DISP
02
03
05
06
07
08
09
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
60
61
62
63
64
65
66
67
68
69
70
TUNER
BAND
.
MODE CHANNEL
TV CATV
NOTE:
TO RECEIVE THE SUBSCRIPTION OR
PREMIUM PROGRAMMING FROM CERTAIN
CABLE COMPANIES.
SPECIAL ADAPTERS MAY BE REQUIRED.
No.51990
BAND
ULTRA
SUB
MID
UHF
TOTAL 180CH
VHF 124CH
UHF 56CH
DISP
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
01
96
97
98
99
14
69
TUNER
BAND
.
VP0203
DP6060
C-N14310
Mar. 2002 No. 51990
C-N14310
C
B
E
B
C
E
C
B
E
BK
H
H
G1
RK
G2
GK
E1
SCN
Q371
Q372
Q373
R381
R382
L391
W152
51
T
41
U
MARK
MARK
/2!
-1
CKF1664
UL MARK
R383
R384
R385
R380
C377
C392
R371
R372
R373
R374
R375
R376
R377
R378
R379
R386
R387
R388
C374
C375
C376
R391
C371
C372
C373
C391
SK371
TP-E
TP-R
W154
W155
W156
L
3
7
4
CONTENTS
C-N14310
CRT SOCKET PWB PATTERN
SEMICONDUCTOR SHAPES
BLOCK DIAGRAM
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRA M
P ATTERN DIAGRAMS
MAIN PWB PATTERN
CRT SOC KET PW B PATTERN
CHANNEL CHART
SEMICONDUCTOR SHAPES
TRANSISTOR
BOTTOM VIE W
E
C
B
ECB
BCE
(G)(D)(S)
FRONT VIEW
ECB
ECB
2-2
2-3
2-5
2-9
2-11
2-12
TOP
TO P VI EW
CHIP TR
C
BE
IC
BOTTOM VIEW FRONT VI EW TOP V IEW
OUT
E
CHIP IC
2-2
N
N
IN
N
1
N
IN OUTE
TO P VI EW
1 N
1
N
1 N
1
N
No.51990No.51990
2-11
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