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FDL-250T
SPECIFICATIONS
TV standard
American TV standard/NTSC
Channel coverage
VHF : 2-13
UHF : 14-69
Antenna
VHF/UHF strap antenna
Display format
Transmissive type TN liquid cryatal
panel
Drive format
TFT/active matrix
Picture
2.5 inches measured diagonally
Viewable image size
49 x 36.5mm (1
Input
Audio/video : minijack
Antenna : VHF/UHF 75Ω (minijack)
Output
Headphones : minijack (mono)
Impedance 8-45 ohms
Power requirements
4.5 V DC
AC power adaptor compatible (not
supplied)
Power consumtion
Approx. 2.8W
Speaker
Ø28mm (1
Temperature range
32˚F-104˚F (0˚C-40˚C)
Dimensions
Closed : Approx. 90 x 109 x 71.7mm
(3
Fully opened :
excl. projecting parts and controls
Strap length
Approx. 1,300mm (51
Mass
Approx. 360g (12.7oz), excl. batteries
Supplied accessories Strap adjuster
This instruction manual
Warranty
Customer Inquiry Card
Important Safeguards
Optional accessories AC power adaptor AC-E45HG
Size AA (LR6) alkaline batteries
Design and specifications are subject to change without notice.
7
7
/8 x 1
/16 in.)(wh)
Audio : 500mVrms, 47kΩ
Video : 1 Vp-p, 75-ohms, unbalanced,
sync negative
1
/
in.), 0.1W
8
9
/
x 4
5
/
x 2
13
/
in.)(w/h/d)
16
16
16
Approx. 90 x 194 x 71.7mm
9
3
13
(3
/
x 7
/
x 2
/
in.)(w/h/d)
16
4
16
1
/
in.)
4
TABLE OF CONTENTS
Section
Power Sources (see fig. A) ...................................................... 3
Operation (see fig. B) .............................................................. 3
External Antenna Connection (see fig. C) ............................... 3
Using with Video Equipment (see fig. D) ............................... 4
Precsutions .............................................................................. 4
Troubleshooting ...................................................................... 4
WARNING .............................................................................. 4
2-1.
Case,A board and H board Removal ............................ 5
2-2.
LCD Case and B board Removal ................................. 5
2-3.
Service Position ............................................................ 5
4. DIAGRAMS
4-1. Block diagram .................................................................. 8
4-2. Circuit Boards Location ................................................. 11
4-3. Printed Wiring Boards and Schematic Diagrams ........... 11
• A Board ....................................................................... 12
• B Board ....................................................................... 16
• H Board ....................................................................... 20
4-4. Semiconductors .............................................................. 21
5-1. Chassis Section .............................................................. 22
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE AN-
ODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR CARBON PAINT-
ED ON THE CRT, AFTER REMOVING THE ANODE.
AN ISOLATION TRANSFORMER SHOULD BE USED DURING ANY SER-
VICE TO AVOID POSSIBLE SHOCK HAZARD, BECAUSE OF LIVE CHAS-
SIS.
THE CHASSIS OF THIS RECElVER IS DIRECTLY CONNECTED TO THE
AC POWER LINE.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK ! ON THE SCHE-
MATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE
CRITICAL TO SAFE OPERATION. REPLACE THESECOMPONENTS
WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN
THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. CIRCUIT
ADJUSTMENTS THAT ARE CRITICAL TO SAFEOPERATION ARE IDEN-
TIFIED IN THIS MANUAL. FOLLOW THESE PROCEDURES WHENEV-
ER CRITICAL COMPONENTS ARE REPLACED OR IMPROPER OPERA-
TION IS SUSPECTED.
- 2 -
Title
............................................ 6
........................................ 23
(CAUTION)
WARNING!!
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