Sony KV-PG14N70 Service Manual ▷ View online
– 25 –
– 24 –
KV-PG14N70
RM-915
KV-PG14N70
RM-915
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM
59
60
38
41
40
36
35
34
3
6
56
54
12
L/H
U/V
VC
KEY1
KEY2
RESET
EXTAL
XTAL
TIMER
RESP/
IICLK0
IIDAT0
BLK
NICAM
VC AMP
Q105
Q106
VC FILTER
Q100
BUFFER
AGC
N/C SCL SDA
50
42
47
25
55
53
26
3
4
17
48
27
G
BRT ABL
HSYNC
HSYNC
IICLK1
IIDAT1
SIRCS
I
M
VPULSE
VSYNC
HDSW
IC001
Q315
G BUFFER
5
6
IC003 MEMORY
1
2
IC004 IR DET
+5V
S006
5
4
IC002 +5V REG
1
+9V
+5V
X101
Q001
LED
DRIVE
DRIVE
LED
Q002
+5V
TIMER
D001
SWF100
Q102
IF BUFFER
IF
TU100 TUNER
L OUT
L IN
7
5
IC203
AUDIO OUT
Q405
BUFFER
L MUTE
Q401
VIDEO
L (MONO)
J1201
CN200
SP
J200
EARPHONE
MONITOR
OUT
A
POWER SUPPLY, DEFLECTION,
AUDIO & VIDEO PROCESSING,
AUDIO/VIDEO INPUT/OUTPUT
AND MICROCOMPUTER
AUDIO & VIDEO PROCESSING,
AUDIO/VIDEO INPUT/OUTPUT
AND MICROCOMPUTER
18
19
20
21
48
49
54
41
34
35
26
IF IN
IF IN
AGC
SSCP/FBT
3.58
4.43/3.58
BLK
SCL
7
8 SDA
30
29
38
39
31
32
22
50
B-Y
R-Y
CVBS OUT
BLK/STC
B-Y
R-Y
ABL
EHTX-RAY
IC301
Y/C JUNGLE
X443
4.43MHz
X358
3.58MHz
IF OUT
SIF IN
6
1
H PROT
Q004
Q800
H DRIVE
3
1
PIN CONTROL
IC850,851
Q802
PIN OUT
1
7
IC551 V OUT
5
Q801
H OUT
L802
DUMPER
D804, 851
S800
H SENT
FV
HV
+135V
–13V
+15V
T503
Q500
X RAY
+135V
D561
D591
H+
H+
H–
H–
V–
V+
DY1
1
5
200V
H1
CN500
CN300
CN703
6
5
4
1
Q712
Q711
Q710
Q706
Q705
Q704
R DRIVE
G DRIVE
B DRIVE
R AMP
G AMP
B AMP
Q709
Q708
Q707
IK LIMIT
IK LIMIT
IK LIMIT
R
G
B
IK
12
11
10
5
J702
1 8
1
5
200V
H1
CN701
G2
RV702
C (RGB OUTPUT)
T601 SRT
+18V
+11V
+B
D60
S600 POWER
1
2
DRIVE
LATCH
OVP
OSC
9
8
6
7
2
1
3
4
PH600 PHOTO COUPLER
1
2
IC602 ERROR AMP
IC601 REG SW
CN601
HDY
VDY
H+
H–
V+
V–
DY ASS'Y
IK
B
G
R
DSPMUTE
MOMUTE
11
40
45
46
47
HOR OUT
EAST/WEST
VERT POS
VERT NEG
R
G
B
IK
2
4
1
7
9
10
5
6
11
13
17
16
15
14
13
11
2
3
4
5
8
7
T600
1
2
T801
H2
CRT
A34LRG70X
6
5
7
Q407, 406
VIDEO
L (MONO)
IN 1
VIDEO
(FRONT)
(REAR)
VIDEO
IN 1
L (MONO)
VIDEO
11 CVBS IN EXT
3
5
7
IC400
IC402
17 LUMA IN
BUFFER
CLK
DAT
IN
OUT
RESET
55 DE
FILTER
SYNC
Q311, 313
M SW
B/G SW
Q309, 312
13
CVBS IN INT
Q318, Q201
BUFFER
AUDIO SW
SYSTEM CONTROLLER
CN4602
T4602
T4601
F4601
AC IN
F (CISPR)
1
2
CH +
CH -
S003
VOL -
S005
VOL +
S001
TV/VIDEO
S004
S002
SEL
1
3
CN602
DGC
1
2
4
3
6
5
16
56 V PULSE
8
MUTE
AUDIO OUT
15
D/K
B/G
2
1
LUMA IN 27
28
LUMA OUT
+9V
REG
+9V
IC604
– 26 –
KV-PG14N70
RM-915
5-2. CIRCUIT BOARDS LOCATION
A BOARD
F BOARD
C BOARD
– 27 –
KV-PG14N70
RM-915
5-3. SCHEMATIC DIAGRAM
Note:
•
•
All capacitors are in µF unless otherwise noted.
•
All electrolytic capacitors are rated at 50V unless otherwise
noted.
noted.
•
All resistors are in ohms.
k
k
Ω = 1000Ω, MΩ = 1000kΩ
•
Indication of resistance which does not have rating electrical
power is as follows.
power is as follows.
Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)
Rating electrical power 1/4W (CHIP: 1/10W)
•
: nonflammable resistor.
•
¢
: internal component.
•
: panel designation or adjustment for rrepair.
•
All variable and adjustable resistors have characteristic curve
B unless otherwise noted.
B unless otherwise noted.
•
Redings are taken with a color-bar signal input.
no mark
no mark
: Common
(
)
: PAL
[
]
: NTSC 3.58
•
Readings are taken with a 10 M
Ω digital multimeter.
•
Voltage are dc with respect to ground unless otherwise
noted.
noted.
•
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
•
All voltage are in Volt.
•
✽
: Cannot be measured.
•
Circled numbers are waveform references.
•
: B +bus.
•
: B –bus.
•
÷
: signal path.
Reference information
RESISTOR
RESISTOR
: RN
METAL FILM
: RC
SOLID
: FPRD
NONFLAMMABLE CARBON
: FUSE
NONFLAMMABLE FUSIBLE
: RS
NONFLAMMABLE METAL OXIDE
: RB
NONFLAMMABLE CEMENT
: RW
NONFLAMMABLE WIREWOUND
:
✽
ADJUSTMENT RESISTOR
COIL
: LF-8L
MICRO INDUCTOR
CAPACITOR
: TA
TANTALUM
: PS
STYROL
: PP
POLYPROPYLENE
: PT
MYLAR
: MPS
METALIZED POLYESTER
: MPP
METALIZED POLYPROPYLENE
: ALB
BIPOLAR
: ALT
HIGH TEMPERATURE
: ALR
HIGH RIPPLE
Note:
The component identified by shading and
mark
mark
! are critical for safety. Replace only
with part number specified.
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