Sony KDL-19M4000 Service Manual ▷ View online
17
KDL-19M4000
KDL-19M4000
2-1. RESETTING TO FACTORY DEFAULTS AFTER BOARD REPLACEMENT
Traditional Service Mode is not available in this chassis. The only option for service technicians is to reset all of the settings to the Factory Default from
the Self Diagnostic screen.
the Self Diagnostic screen.
CAUTION: Resetting the TV to the Factory Defaults will over-write all customer settings including Parental Lock setting. Before performing this reset,
contact the customer to determine what adjustments they have made.
contact the customer to determine what adjustments they have made.
1. Turn on the TV.
2. While holding down the button on the remote control, on the TV press and hold the MENU button until “reset” displays at the bottom left corner of
the screen.
The TV turns itself off, then turns back on again.
The Initial Setup screen displays.
3. Use the Initial Setup screen options to reset the TV to the factory settings.
RM-YD025
SECTION 2: SERVICE ADJUSTMENTS
Button
☛
18
KDL-19M4000
KDL-19M4000
SECTION 3: DIAGRAMS
3-1. CIRCUIT BOARDS LOCATION
3-2. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS INFORMATION
All capacitors are in μF unless otherwise noted. pF : μμF 50WV or
less are not indicated except for electrolytics and tantalums.
less are not indicated except for electrolytics and tantalums.
All electrolytics are in 50V unless otherwise specifi ed.
All resistors are in ohms. k
Ω=1000Ω, MΩ=1000kΩ
Indication of resistance, which does not have one for rating
electrical power, is as follows:
electrical power, is as follows:
Pitch : 5mm
Rating
electrical
power
:
1
/
4
W
1
/
4
W in resistance,
1
/
10
W and
1
/
16
W in chip resistance.
: nonfl ammable resistor
: fusible resistor
: internal component
: panel designation and adjustment for repair
: earth ground
: earth-chassis
All variable and adjustable resistors have characteristic curve B,
unless otherwise noted.
unless otherwise noted.
Readings are taken with a color-bar signal input.
Readings are taken with a 10M
Ω digital multimeter.
Voltages are DC with respect to ground unless otherwise noted.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
All voltages are in V.
S : Measurement impossibility.
: B+line.
: B-line. (Actual measured value may be different).
: signal path. (RF)
Circled numbers are waveform references.
The components identifi ed by shading and
!
symbol are critical for safety. Replace
only with part number specifi ed.
The symbol
indicates a fast operating fuse and is displayed on the component
side of the board. Replace only with fuse of the same rating as marked.
Les composants identifi es per un trame et une marque
!
sont critiques pour la
securite. Ne les remplacer que par une piece portant le numero specifi e.
Le symbole
indique une fusible a action rapide. Doit etre remplace par une
fusible de meme yaleur, comme maque.
NOTE: The components identifi ed by a red outline and a mark contain confi dential
information. Specifi c instructions must be adhered to whenever these components
are repaired and/or replaced.
See Appendix A: Encryption Key Components in the back of this manual.
information. Specifi c instructions must be adhered to whenever these components
are repaired and/or replaced.
See Appendix A: Encryption Key Components in the back of this manual.
H1
H2
A
G
H3
☛
19
KDL-19M4000
KDL-19M4000
G
D
S
B1 E1
C2
B2 C1
E2
2
3
4
5
6
7
8
9
10
11
12
14
16
17
18
–
1
G
D
S
B2 E2
C1
B1 C2
E1
B2 E2
C1
B1 C2
E1
B2 E2
C1
B1 C2
E1
19
B1 E1
E2
C1(B2)
C2
20
B1
E2
C1
C2
22
23
(B2)
E1
(B2)
E1
E2
B1
C2
C1
21
B1
E1
C2
B2
C1
E2
G
S
S
D
G
D
B1
E1
C2
B2
C1
E2
B1
E2
C2
C1(B2)
E2
B1
C1
C2
E1(B2)
C2
B1
C1
E2
E1(B2)
C2
B1
C1
E2
B2
E1
C2
Ver.1.6
Transistor
(FET)
(FET)
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Discrete semiconductor
(Chip semiconductors that are not actually used are included.)
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Source
Source
Anode
Anode
(NC)
(NC)
Cathode
Anode
Cathode
Common
Cathode
Cathode
Common
Cathode
Cathode
Common
Common
Common
Common
Cathode
Anode
Base
Emitter
Collector
Base
Emitter
Collector
Drain
Gate
Gate
Drain
Device
Printed symbol
Terminal name
Circuit
Terminal name of semiconductors in silk screen
printed circuit ( )
Anode
Anode
Anode
Cathode
Anode
Anode
Cathode
13
Transistor
(FET)
(FET)
Transistor
(FET)
(FET)
15
Emitter
Collector
Base
Transistor
Source
Gate
Drain
Cathode
Anode
Anode
Cathode
Anode
Anode
*
REFERENCE INFORMATION
RESISTOR
: RN
: RN
METAL FILM
: RC
SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RW
: FUSE NONFLAMMABLE FUSIBLE
: RW
NONFLAMMABLE WIREWOUND
: RS
NONFLAMMABLE METAL OXIDE
: RB
NONFLAMMABLE CEMENT
: ADJUSTMENT
RESISTOR
COIL
: LF-8L MICRO INDUCTOR
: LF-8L MICRO INDUCTOR
CAPACITOR
: TA
: TA
TANTALUM
: PS
STYROL
: PP
POLYPROPYLENE
: PT
MYLAR
: MPS
METALIZED POLYESTER
: MPP
METALIZED POLYPROPYLENE
: ALB
BIPOLAR
: ALT
HIGH TEMPERATURE
: ALR
HIGH RIPPLE
20
KDL-19M4000
KDL-19M4000
3-3. BLOCK DIAGRAM
RF in
Main board
Ir
Rx
Micro
processor
Reg. ICs
Line Out
19"
(1440 x 900)
LCD Panel
LIPS
Power
Speaker
8Ohm/10W*2
Remote
Controller
YPrPb
EEPROM
512Kb
An
alo
g
Fron
t End
Digital Video
Processor
Dig
ital
Fro
n
t E
n
d
Headphone
AC in
HDMI
PC
AV1
I2S
Control
VOL +
CH +
Enter/
Input
Input
VOL-
CH-
Power
Menu
EEP
ROM
TosLink
HDMI
LVDS
Demodulator
Inverter(19") )
Micro
Processor
(R8C Tiny)
IR
I/F
(DTV-C4US)
(HYB18T256x2)
(S29GL064)
(Audio Switch)
NJM2750
Audio
Processor
USB
HOST
(M66596FP)
EEP
ROM
HDCP
KEY
DDR2
16x16Mb
NOR Flash
64Mbit
ADC
Audio
Processor
DAC
Audio Processor
(MSP-4440K)
Power
AMP
(YDA-138)
Line
out
Driver
*DIF1
DIF2
I/O
(M24512)
NJM-4558
AV2
SPDIF
SW
(SN74CB3T3
253DBQR)
USB
CVBS
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