R
EV-510B (KX-619B)
(without price)
(For NTSC)
FEB. 1997
EV-510B
UHF
VHF
13
30
40
50
62
CH
1 2
3
4681012
CH
<
TUNNING
>
CONTENTS
SPECIFICATIONS ......................................................................................... 1
BLOCK DIAGRAM ........................................................................................ 2
PRINTED CIRCUIT BOARDS ....................................................................... 3
EXPLODED VIEW ......................................................................................... 5
PARTS LIST .................................................................................................. 6
SCHEMATIC DIAGRAMS ............................................................................. 9
WAVEFORMS .............................................................................................. 11
-- 1 --
Item
Specification
1.
Reception channels
2.
Power voltage
DC 6.0 V
3.
Power consumption
Approx. 2.3 W
4.
Current consumption
Approx. 383 mA
Batteries
: 3 AA size batteries
5.
Power supply
Car adaptor : CA-K65
AC adaptor : AD-K65
Earphone jack
: 3.5ø mini
6.
Connection terminals
External power jack
: 6.0 V DC IN
External antenna jack
: 3.5ø mini
Audio / Video jack
: 3.5ø
7.
Screen size
2.5 inches
8.
No. of Picture element
61,380 (220
× 279) dots
9.
Dimensions
75 (W)
× 26.7 (D) × 120.8 (H) mm
10.
Weight
195 g excepting batteries
AC adaptor
: AD-K65, 64
11.
Options
Car adaptor
: CA-K65
RF connector
: CF-13
Antenna matching device : AS-35S
SPECIFICATIONS
VHF: 2 ~ 13 ch
UHF: 21 ~ 69 ch
-- 2 --
Antenna
1
TU200
2
Q200
3
IC200
7
Tuning
Voltage
Generator
VR600
Volume
Control
4
IC600
Speaker
IC300
IC700
LCD
Chroma
Circuit
Display
Control
Auto-Tuning
Control
5
6
VCC2 (4.5 ± 0.02 V)
VCC7 (25.9 ~ 31.3 V)
VCC6 (10.8 ~ 12.0 V)
VEE1 (8.5 ~ 7.5 V)
VEE2 (19.8 ~ 17.2 V)
IC270
Power
Supply
Audio
Amp.
IF Amp.
Tuner
Video
Sound
Det.
FM
AFT Circuit
AGC Circuit
Det
1
-- Color tuner: TU200 TEPU5-02
Selects a desired radio wave and changes it to the video IF signal.
2
-- Video IF amp.: Q200 2SC4238
Amplifies the video IF signal output from tuner TU200 by 10 times (20 dB).
3
-- Video det./Sound det./FM det./AFT/AGC: IC200 M51348FP
Eliminates the carrier wave in the video IF signal, and picks up the video signal and the sound IF signal.
Also, the sound signal is picked up from the sound IF signal by FM detection.
4
-- Audio amp.: IC600 NJM2070M
Sound amplification.
5
-- Chroma circuit: IC300 IR3P90Y
Generates the tricolor (red, green, and blue) from the video signal.
6
-- Display control/Auto-tuning control: IC700 MSM6770CGS
Controls the display.
7
-- Tuning voltage generator: IC270 BA10358F
Generates the tuning voltage with the tuning pulse output from 6.
BLOCK DIAGRAM
-- 3 --
JK200
GND
VR600
VR304
,,
F200
C208
,
C606
615B-L
CN700
L102
R229
TM100
R711
R703
R701
R312
C710
C315
C300
C301
H300
JK100
C225
C202
TU200
GND
GND
F201
F202
F203
C118
C205
C207
,
,
C110
C210
C120
C220
C112
T100
C100
C114
C116
T201
T200
L101
VR100
SW100
R212 R209 R222
R224
R230
C257
R227
R223
C245
R236
C259
R105
C145
C746 R780
R715
R758
R759
Q750
Q760
R716
R710
Q710
R706
R705
R707
R750 R761
R751 C781 C752
C725
R736
R737
C353
C352
R325
C376
C380
C381
C356
C374
C375
L301
L310
FU100
D180
C306
C305
C311
C600
C603
C312
C215
HP900
IC700
JK250
JK600
PRINTED CIRCUIT BOARDS
TOP VIEWS
Linear
BL
615BL
CN702
L950
R720
Q950
R950
Q951
C925
T950
CN950
C927