DOWNLOAD Sony KV-PF21L70 Service Manual ↓ Size: 4.29 MB | Pages: 64 in PDF or view online for FREE

Model
KV-PF21L70
Pages
64
Size
4.29 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-pf21l70.pdf
Date
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SECTION  5
DIAGRAM
5-1. BLOCK DIAGRAM
– 
42
 –
– 
43
 –
– 
41
 –
YC JUNGLE
IC301
CXA2130S
<slave:88H>
MONITOR
OUT
TV V in
TV L in
TV R in
Mon out
TV V in
V1 V in
43
6
12
V1 V in
V1 L in
V2 V in
V2 V in
4
V2 L in
V out 2
L out 2
JACK BLOCK
VIDEO IN 1
AUDIO
PROSESSOR
IC203
TDA7429S
<slave: 80H>
AUDIO OUT
IC201
TA8248K
RED OUT
GREEN OUT
BLUE OUT
Q704-712
C3 
SP ASSY
(This is not used for these models)
R out
CRT SOCKET
G out
CRT
A51LPT70X
DY
Y21RSA-S
B out
R out
V out
U out
Y
 out
V in
U in
Y i
n
G out
B out
22
23
24
21
19
18
11
13
14
IK in
H. DRIVE
H. PULSE
E/W
VD+
VD-
H-OUT
Q511
2SD2578
V-OUT
IC503
TDA8172
HDT
T501
H-DRIVE
Q506
2SD774-34
PIN-CONT
IC502
NJM2903M 
PIN-OUT
Q505
IRF614 
PMC
L509
HLC
L510
FBT
T503
NX-1748
+B
Audio Front Vcc
+9V
11V
7V
+5V
5V REG & RESET
IC002 MM1319AF
9V REC IC603
5V REC IC604
STB TRANS
T604
SRT
T603
Additional
Color Matrix
SYSTEM
Ucom
IC001
CXP86449
RECEIVER
SBX1981-51
IC901
SIRCS
R G B
BLK
I2L
MEMORY
IC003
M24C08-BN6
32 31 30
37 39 40
28 29 30 31
F
STB SW TR
Q605 
2SK2845
POWER IC
IC601
STR-F6654
LINE FILTER
T601
LINE 
FILTER
T4601
T4602
THP
THP600
AC CORD
DGC
MAIN. TUVIF
TU101
BTF-LG411(I)
(Except KV-PF21M40/
PF21M70)(E/ME)
BTF-LG433(I)
(KV-PF21M40/PF21M70)
(E/ME)
<slave: C0H>
J401
VIDEO IN 2
(FRONT)
J902
TEXT DECODER 
with Ucom
IC801
SAA5261
<slave: 58H>
(KV-PF21P41 only) 
V1
R G B
BLK
4P
2P
 
KV-PF21L70/PF21M40/PF21M70/PF21P10
KV-PF21P40/PF21P41/PF21Q70
RM-952
KV-PF21L70/PF21M40/PF21M70/PF21P10
KV-PF21P40/PF21P41/PF21Q70
RM-952
KV-PF21L70/PF21M40/PF21M70/PF21P10
KV-PF21P40/PF21P41/PF21Q70
RM-952
CN604
CN703
DY
1
DGC
B
9V
IK
1
5
6
(RGB OUT)
1
E
CN704
PICTURE
TUBE
1
2
3
4
5
6
H+
H+
H-
H-
V-
V+
(POWER SUPPLY, HV, MICON, Y/C JUNGLE)
1
2
3
DGC
NC
DGC
2
1
A
C IN
A
C IN
A
C3
DY ASSY
CN702
1
G2
FBT
4
3
GND
R
H1
3
2
1
E
200V
CN701
2
G
9V
IK
GND
R
G
B
6
5
4
3
2
1
CN305
1
2
3
H1
GND
200V
CN505
CN601
CRT
CN4602
A
C OUT
A
C OUT
2
1
A
C IN
A
C IN
2
1
CN4601
(CISPR)
F
1
GND
CN4603
CN104
GND
1
RED
GREEN
BLUE
BLK
GND
SD
A
SCL
7
6
5
4
3
2
1
CN307
CN301
1
2
3
7
GND
VP
SCP
7V
CVBS
GND
6
5
GND
4
CN801
7.5V
CVBS
GND
GND
SCP
VP
GND
7
6
5
4
3
2
1
CN803
1
2
3
4
5
6
7
RED
GREEN
BLUE
BLK
GND
SDA
SCL
(KV-PF21P41 ONLY)
V1 (TELE TEXT)
V1 (KV-PF21P41 only)
A
F
C3
5-3. CIRCUIT BOARDS LOCATION
– 
46
 –
– 
44
 –
– 
45
 –
5-2. FRAME SCHEMATIC DIAGRAM
KV-PF21L70/PF21M40/PF21M70/PF21P10
KV-PF21P40/PF21P41/PF21Q70
RM-952
KV-PF21L70/PF21M40/PF21M70/PF21P10
KV-PF21P40/PF21P41/PF21Q70
RM-952
KV-PF21L70/PF21M40/PF21M70/PF21P10
KV-PF21P40/PF21P41/PF21Q70
RM-952
– 47 –
KV-PF21L70/PF21M40/PF21M70/PF21P10
KV-PF21P40/PF21P41/PF21Q70
RM-952
5-4. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS
Note:
•
All capacitors are in 
µ
F unless otherwise noted.
•
All electrolytic capacitors are rated at 50V unless otherwise noted.
•
All resistors are in ohms.
k
Ω
 = 1000
Ω
, M
Ω
 = 1000k
Ω
•
Indication of resistance which does not have rating electrical
power is as follows.
Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)
•
: nonflammable resistor.
•
¢
: internal component.
•
: panel designation or adjustment for repair.
•
All variable and adjustable resistors have characteristic curve B
unless otherwise noted.
•
Readings are taken with a color-bar signal input.
no mark : PAL
(           ) : SECAM
[           ] : NTSC 3.58
«
    »
: NTSC 4.43
•
Readings are taken with a 10 M
Ω
 digital multimeter.
•
Voltage are dc with respect to ground unless other-
wise noted.
•
Voltage variations may be noted due to normal pro-
duction tolerances.
•
All voltages are in V.
•
: Cannot be measured.
•
Circled numbers are waveform references.
•
: B + bus.
•
: B – bus.
•
: signal path.
Reference information
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 
!
 are critical for safety. Replace only with
part number specified.
*
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