Sony KDL-42R500A / KDL-47R500A Service Manual ▷ View online
25
TROUBLE SHOOTING
2) IR remote commander malfunction
KDL-42/47R500A(CH)
TV isn’t controlled
by remote commander
OK
NG
Green LED light
at power indicator
Change Main board to
IR board FFC
IR FFC
issue
NG
Green LED blinks at power indicator
when using commander
near sensor’s window
OK
NG
Change
Main board
NG
Change IR board
IR board issue
Change
Remote Control
battery
Symptom
improvement
improvement
Symptom
improvement
improvement
OK
OK
KDL-42/47R500A(CH)
26
SEC 4. DIAGRAMS
4-1. BLOCK DIAGRAM
TS
MT5367DAHU(CHD)
DDR3 × 1
(2GB)
LVDS (FFC)
LCD Panel
(LC420EUN)
(LC470EUN
(LC470EUN
)
IF
Demod.
DVB-T/C:
CXD2837ER(PAD)
DTMB:
CXD2840ER(CHD)
IR/ LED
HDMI1-R/L(DVI)
IR pass through (Hotel mode
for CHD only)
IR pass through (Hotel mode
for CHD only)
YPbPr
CVBS
YPbPr-R/L
CVBS-R/L
Keypad
HDMI 1
(ARC)
HDMI 2
(MHL2.0)
USB 1.1/2.0
USB
Sil1292A
Headphone/Line out
IF
RE277TN
(1 terminal)
I2S
Speaker
(8 Ω/8W*2)
Amplifier
HP Driver
Hybrid
NAND Flash
64 MB
PSU
(G4)
Power
Block
KDL-42/47R500A(CH)
27
DIAGRAMS
4-2. CONNECTOR DIAGRAM
CN201
CN4004
Power Board
Main Board
IR Board
Key Pad
CN950
T-Con Board
Panel
Speaker
Speaker
CN8001
CN4006
CN4003
CN6401
LED Driver
CN6402
KDL-42/47R500A(CH)
28
DIAGRAMS
4-3. CIRCUIT BOARDS LOCATION
KDL-42R500A
A Board
Switch Unit
G4 Board
H Board
KDL-47R500A
A Board
Switch Unit
G4 Board
H Board
Click on the first or last page to see other KDL-42R500A / KDL-47R500A service manuals if exist.