Sony KV-SR25M53K Service Manual ▷ View online
– 36 –
KV
-SR25M53K
-SR25M53K
RM-W109
SECTION 4
DIA
GRAMS
4-1.
BLOCK DIA
GRAM
VIF
SAW
SIF
SAW
MAIN
Power
Supply
Stdby
Power
FSS TUNER
AV
Switch
3D
COMB/NR
SUB
FSS
TUVIF
G/Y
B/PB
R/PR
L
R
24.576MHz
DVD in
Rear AV in
Front AV in
Mic, Echo V
o
l
L,R in
Mon out
Main CV
Mon
out
AV
1,2
in
AV
1
in
RGB/
DVD
in
AC in ~
110-220V
RGB out 42-44
VM 64
VD + 107
VD — 104
EWD 108
40 C1
71 CVBS / Y1
71 CVBS / Y1
L, R
CISPR/
PFC
Relay
LOW B
Stdy 3-3
AUDIO VCC
FBT
2ch
3ch
Optional
Audio Amp
ATT
NVM
Pin out
H-drive
H-out
V-out
DF/DQP
VM
RGB Amp
Rot Amp
LCC Amp
feedback
R
L
12W
3D Woofer
3D Woofer
6W
Tweeter
Tweeter
6W
Tweeter
Tweeter
R
L
L,R
H
P
P
EW, Hd
V+, V-
PWM
RGB
SIRCS
E-Volume
Key
buttons
PLL
L,R +Mic in
Mic in
L,R in
YC out
SUB
Picture
CV/Y
UV in
PIP
I/O Port
I/O Port
VIF & SIF
POWER
Color
Decoder
YUV
Processor
Jungle
RGB
A
D
C
D
C
D
A
C
A
C
Stereo,
DSP
Micro
Text
CC & V-chip
L
E
D
D
+B
Koraoke
IC
– 37 –
KV-SR25M53K
RM-W109
4-2. CIRCUIT BOARDS LOCATION
4-3. SCHEMATIC DIAGRAM INFORMATION
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.
•
: fusible resistor.
•
¢
: internal component.
•
: panel designation or adjustment for repair.
•
All variable and adjustable resistors have characteristic curve
B unless otherwise noted.
B unless otherwise noted.
•
Readings are taken with a color-bar signal input.
no mark
no mark
: Common
(
)
: PAL
[
]
: NTSC 3.58
•
Readings are taken with a 10M
Ω digital multimeter.
•
Voltage are dc with respect to ground unless otherwise
noted.
noted.
•
Voltage variations may be noted due to normal production
tolerances.
tolerances.
•
All voltage are in Volt.
•
✽
: Cannot be measured.
•
Circled numbers are waveform references.
•
: B +bus.
•
: B –bus.
•
k
: signal path.
Note: The reference number which starts with Wxxx
(eg: W003) indicates a wire to wire connection.
Note: Components marked as XX are not fitted on this
model.
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.
Note: "A" board schematic diagram is divided into 7
blocks. Each block is named by its function and
block "number". eg: Processor (Block 001).
Joint connection between boards can be identified
using the block number followed by the grid's guide.
block "number". eg: Processor (Block 001).
Joint connection between boards can be identified
using the block number followed by the grid's guide.
eg:-
<
PWR-OFF-MUTE 002 :4E
Meaning: Block 001 joint "PWR-OFF-MUTE" is
connected to Block 002 joint "PWR-OFF-MUTE"
located at grid 4E.
connected to Block 002 joint "PWR-OFF-MUTE"
located at grid 4E.
BC Board
K Board
J3 Board
B Board
A Board
F Board
VM Board
H4 Board
H5 Board
C Board
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