Casio tv1750cd Schematic

(without price)

INDEX

POCKET TELEVISION

TV-1750C
TV-1750D

MAR. 1994

Page

Specifications.............................................................................................2

Block Diagram...........................................................................................3

Circuit Operations......................................................................................4

Adjustment

Linear PCB..........................................................................................5

Printed Circuit Boards................................................................................9

Electrical Parts List..................................................................................11

Mechanical Parts List...............................................................................17

Exploded View / Disassembly..................................................................18

Wiring Diagram........................................................................................19

Schematic Diagrams and Waveforms.....................................................20

R

SPECIFICATIONS

Item Specification

VHF UHF

Reception Channels TV-1750C 2 ~ 12 ch 21 ~ 69 ch

TV-1750D – 21 ~ 68 ch

Power Voltage DC 6.0 V

Power Consumption Approx. 3.3 W

Current Consumption Approx. 550 mA

Battery Life (with alkaline batteries) Approx. 2.5 hours

Batteries : 4 AA size batteries

Power Supply Car adaptor : CA-K65

AC adaptor : AD-K65

Connection Terminals Earphone jack : 3.5ø mini

External power jack : 6.0 V DC IN

Screen Size 2.5 inches

No. of Picture Element 118,800 (220 × 540) dots

Dimensions 135.5 mm (H) × 91 mm (W) × 38.1 mm (D)

Weight 240 g excluding batteries

8.5 oz excluding batteries

Options AC adaptor : AD-K65

Car adaptor : CA-K65

Body Color Black

— 2 —

Antenna

BLOCK DIAGRAM

Power
Supply

1 TU200 2 Q200

IF Amp.Tuner

7

IC500

Tuning
Voltage
Generator

VCC2 (3.95V)
VCC7 (41.6~51.6V)
VEE1 (-6.5~-8.0V)

VR800

Brightness
Control

3 IC200

Video
Sound Det.
FM
AFT Circuit
AGC Circuit

5

6

Osc.
Display
Control
A-D Converter
Auto-Tuning
Control

8 Q800~Q806

Det

IC300

Chroma
Circuit

IC700

Display
Voltage
Generator

VR600

Volume
Control

4 IC600 Speaker

Audio
Amp.

Common
Driver

LCD

Segment
Driver

1 — Color Tuner: TU200 TEPE5-01(TV-1750C) TU200 TEPB5-02(TV-1750D)

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 the tuner TU 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 M52045FP

Generates the tricolor (red, green, and blue) from the video signal.

6 — OSC/A-D Converter/Display Control/ Auto-Tuning Control : IC700 MSM662501 GSK-640E

Converts the color signal into a digital signal.
Also, generates the clock pulse for the display and controls the display.

7 — Tuning Voltage Generator: IC500 MSC1169MS-K

Generates the tuning voltage with the tuning pulse (TU) output from 6.

8 — Display Voltage Generator: IC800 BA10358F, Q804 ~ Q806 Q810 Q811 2SD1149S,

2SD601A-R×3, 2SB709A-R
Generates the display voltages V0 ~ V4 with VEE1 and VCC7 outputs from the power supply.

— 3 —

AD2
AD1

RLL

VDD2

RHH

M7
M8
M9

M10

PSi

VSS1

IC700

B
G
R

VSS2 TE1

A/D

Mode

Control

Data Output

CIRCUIT OPERATIONS

TE2

TE4

TE5

TE6

M6 M5 M4 M3 M2 M1 AFT

Frequency

Divider

Channel
bar
Control

Vertical

positioning

Control

TE3

Test Control Mode Control

Test

Circuit

Display
Control

Sweep

Control

Tuning Control

Tuning Voltage
UP/DOWN Counter

Pulse Width
Modulation D/A

Horizontal

positioning

Control

AFT

Control

Phase

Comparator

Frequency

Divider

Key

Switch

Control

Mute

Control

Synchronism

Judgment

Frequency

Separator

Oscillator

KDB
KCB
AVB
UHF

MTB

VLB

TU

VDD1
C-S
PD

OSC1
OSC2

D1 D2 D3 D4 D5 D6 CDB CFB CNB ECB

Signal Name

Function

SCB STB HDB CK1 CK2

SNB

Signal Name

Function

D1 ~ D6 Display data output terminal MTB Mute control terminal

SNB Data latch signal TU Tuning control pulse output terminal
CDB Scanning start signal VLB VHF High/Low channel select signal

output terminal
CFB Output voltage changeover signal UHF VHF/UHF select signal
CNB Scanning signal shift lock signal AVB

KCB Key input terminal
KDB

SCB Brightness modulation pulse control AFT AFT voltage input terminal

STB Sampling start signal M1 ~ M10 Mode select signal input terminal

ECB Signal input terminal controlling the

TE1 ~ TE6

Test terminal

segment drive terminal to "H" during
no display

CK1, CK2 Clock pulse output terminal R, G, B Original color

OSC1 Oscillator freuency control terminal RLL "L" level voltage input terminal of
OSC2 video signal

PD Clock pulse adjustment terminal RHH "H" level voltage input terminal of

video signal

C-S Synchronizing pulse input terminal PS1 Mode control signal

HDB Horizontal synchronizing signal input VSS1 Power supply voltage input terminal

terminal

VDD1 VDD voltage input terminal

— 4 —

ADJUSTMENT

Linear PCB

1) Items to Be Adjusted
Item Measuring Instrument

VCC2 voltage setting Voltmeter
Video detection coil adjustment TV signal generator, pattern generator, oscilloscope,

low-pass filter
AFT coil adjustment Sweep generator, oscilloscope, voltmeter
Contrast adjustment TV signal generator, pattern generator, oscilloscope
AGC adjustment TV signal generator, pattern generator, IF levelmeter
Clock adjustment Voltmeter

2) Adjustment and Test Point Locations
TOP VIEW

— 5 —

BOTTOM VIEW

3) Equipment Connection / Procedure

VCC2 Voltage Setting

TV-1750

Set

Voltmeter

Output

TP1

Input Input Input Output Output

Connection Point Signal Connection Point

Adjust Result

VR100

Voltmeter

TP1

Adjust for 4.30 ± 0.02V
reading on voltmeter.

— 6 —

* Open soldering pad IF.

Pattern
generator

Signal
generator

Video Detection Coil Adjustment

TV-1750

Set

Input Output

TP2

TP3

Oscilloscope

Low-pass
filter

Input Input Input Output Output

Connection Point Signal Connection Point

Pattern
generator

Signal
generator

Color bar

38.9MHz(TV-1750C)

TP2 T200 TP3

39.5MHz(TV-1750D)

40±3dBµ

Adjust Result

Low-pass filter
Oscilloscope

AFT Coil Adjustment

* Open soldering pad IF.

Sweep
generator

Sweep
generator

Input

TP2

38.9±5MHz (Sweep)
: TV-1750C

39.5±5MHz (Sweep)

TP2 T201 TP4

: TV-1750D

Maker:

38.9MHz(TV1750C)

Maker:

39.5MHz(TV1750D)

70dBµ

TV-1750

Set

Oscilloscope Voltmeter

Output

TP4

Voltmeter
Oscilloscope

Adjust for DC level at mini-

Adjust for 2.0 ± 0.2V reading on
voltmeter.
Confirm that the marker is at
the middle of S-curve on oscil­loscope.

* Open soldering pad IF.

Pattern
generator

Pattern
generator

Signal
generator

Color bar

38.9MHz(TV-1750C)

TP2 VR300 TP5

39.5MHz(TV-1750D)

70dBµ

Contrast Adjustment

Signal
generator

Oscilloscope

— 7 —

TV-1750

Set Oscilloscope

Input Output

TP2

TP5

Adjust step form wave to read

0.90 ± 0.05 Vp-p.

AGC Adjustment

Pattern
generator

Signal
generator

TV-1750

Set

Input Output

TP7

Input Input Input Output Output

Connection Point Signal Connection Point

Adjust Result

TP2

Pattern
generator

TV signal

TP7 VR200 IF levelmeter TP2

Color bar
65 ± 5 dBµ

generator

Clock Adjustment

TV-1750

Set

Voltmeter

IF levelmeter

Adjust for 84 ± 1 dBµ
reading on the IF levelmeter

Output

TP6

VR700

Voltmeter

TP6

Adjust for 1.05 ± 0.05V
reading on voltmeter.

— 8 —

PRINTED CIRCUIT BOARDS

TOP VIEWS

Linear

C105

SW100

JK100

C100

FU100

D180

C115

L102

T100

CN701

JK200

TU200

C309

C110

L101

C112

H300

C202

C113

R133

R313

R342

R210

R209

R247

R314

C233

R207

F203

C305

C236

C205

C207

T201 T200

L202

R700

D703

R704

R718

R705

C760

C306

R734

F200

R222

R239

C700

R725

R738

C208

D803

R727

D705

C845

R726

C741
R703

R719

C603

F201

R824

C810

C761

R733

C808

R808

C751

L705

C756

JK600

C210

F202

R825

C606

C806

C750

C755

C600

CN700

VR600

VR800

C836

C831
C832

BL

— 9 —

BOTTOM VIEWS

Linear

R645

IC600

R606

R607

IC800

R836

R835

R834

R820
R821 C840
R822

Q810
Q811

R229

C830

Q806

R833

R817

C835

R816

R641

R611

R615

Q804

R815

C765

D805

C630

R610

CP245

C257

Q801

CP700

R730

C642

C249

Q805

R819

Q803

IC700

R208

R830

VR700

C239
C240

R230

R827

Q802

R810

Q800

C243

C246

IC200

R809

R312

C776

L200

C261

D700

L700

C740
C742

C345

C339

R740

R204

R202

VR200

C263

C291

CP703

R311

R215

C264

C262

C290

VR300

R322

C346

VR301

Q200

HP200

C245

R212

R241

R246

C340

R325

C237

CP221

C259

R236

R223

D500

CP240

C335

R310

IC300

R343

R205
R203
R201

R224

D150

Q300

C347

C235

R502

R541

R550

R545

R336

C351

R115

D152

R306

R307

R331

R503

R501

IC500

C545
R111

C146

+

C301

R335

R330

C350

C234

C140

D155

R305

R326

C265

R500

R102

D100

C550

C145

Q111

C185

CP204

VR100

C135

R103

R117

R101

Q100
Q101

R150

BL

— 10 —

ELECTRICAL PARTS LIST

Linear PCB Assembly No. 1

FOB Japan

N Item Code No. Parts Name Specification C D M N.R.Yen R

Unit Price

Capacitors

C100 2805 2180 Electrolytic 10RE2-220 1 1 20 C
C105 2807 6553 Electrolytic 6.3RV2-47-T 1 1 20 C
C110 2803 6155 Electrolytic 16RV2-10-T 1 1 20 C
C112 2807 6595 Electrolytic ECE-V0JV101Z-P 1 1 10 C
C113 2807 6595 Electrolytic ECE-V0JV101Z-P 1 1 10 C

N C115 2806 9252 Electrolytic 63RE2-10 1 1 20 C

C135 2897 0112 Chip GR40W5R562K50PT 1 1 20 C
C140 2897 0112 Chip GR40W5R562K50PT 1 1 20 C
C145 2892 0083 Chip GR40W5R103K50PT 1 0 10 C
C145 2892 0016 Chip GR40W5R102K50PT 0 1 10 C

N C146 2897 1617 Chip GR40CH221J200PT 1 0 20 C

C185 2892 0040 Chip GR40Y5V104Z25PT 1 0 10 C
C202 2807 6553 Electrolytic 6.3RV2-47-T 1 1 20 C

N C205 2807 6735 Electrolytic 50RV2-2R2-T 1 1 20 C

C207 2807 6553 Electrolytic 6.3RV2-47-T 1 1 20 C
C208 2807 6553 Electrolytic 6.3RV2-47-T 1 1 20 C
C210 2803 6155 Electrolytic 16RV2-10-T 1 1 20 C
C233 Not used
C234 2892 0059 Chip GR40Y5V103Z50PT 1 1 10 C
C235 2897 0994 Chip GR42-6Y5V334Z50PT 1 1 20 C
C236 2892 0059 Chip GR40Y5V103Z50PT 1 1 10 C
C237 2892 0059 Chip GR40Y5V103Z50PT 1 1 10 C
C239 2892 0113 Chip GR40CH150J50PT 1 1 10 C
C240 2892 0059 Chip GR40Y5V103Z50PT 1 1 10 C
C243 2892 0059 Chip GR40Y5V103Z50PT 1 1 10 C
C245 2892 0059 Chip GR40Y5V103Z50PT 1 1 10 C
C246 2892 0059 Chip GR40Y5V103Z50PT 1 1 10 C
C249 2892 0844 Chip GR42-6Y5V474Z16PT 1 1 20 C
C257 2892 0407 Chip GR40CH270J50PT 1 1 10 C
C259 2897 0539 Chip GR40W5R223K50PT 1 1 10 C
C261 2892 0890 Chip GR40PH560J50PT 1 1 20 C
C262 2892 0407 Chip GR40CH270J50PT 1 1 10 C
C263 2892 0890 Chip GR40PH560J50PT 1 1 20 C
C264 2892 0491 Chip GR40CH020C50PT 1 1 20 C
C265 2892 0059 Chip GR40Y5V103Z50PT 1 1 10 C
C290 2892 0318 Chip GR40CH820J50PT 1 1 10 C
C291 2897 0371 Chip GR40CH200J50PT 1 1 10 C
C301 2897 1827 Chip tantalum EMK316B474K-T 1 1 20 C
C305 2803 6155 Electrolytic 16RV2-10-T 1 1 20 C

N C306 2803 6330 Electrolytic 25RV2-4R7-T 1 1 20 C

C309 2807 6553 Electrolytic 6.3RV2-47-T 1 1 20 C
C335 2892 0016 Chip GR40W5R102K50PT 1 1 10 C
C339 2892 0016 Chip GR40W5R102K50PT 1 1 10 C
C340 2892 0083 Chip GR40W5R103K50PT 1 1 10 C
C345 2897 0112 Chip GR40W5R562K50PT 1 1 20 C
C346 2897 0973 Chip GR40W5R683K25PT 1 1 10 C
C347 2897 0973 Chip GR40W5R683K25PT 1 1 10 C
C350 2892 0326 Chip GR40CH101J50PT 1 1 10 C
C351 2897 0245 Chip GR40CH180J50PT 1 1 20 C
C545 2897 0693 Chip GR40W5R333K25PT 1 1 10 C
C550 2897 0021 Chip GR40Y5V683Z50PT 1 1 20 C

Notes: N – New parts C – TV-1750C

M – Minimum order/supply quantity D – TV-1750D

R – Rank

— 11 —

Linear PCB Assembly No. 2

FOB Japan

N Item Code No. Parts Name Specification C D M N.R.Yen R

Unit Price

C600 2803 6155 Electrolytic 16RV2-10-T 1 1 20 C
N C603 2828 5552 Electrolytic 6.3RV2-100-T 1 1 20 C
N C606 2828 5552 Electrolytic 6.3RV2-100-T 1 1 20 C

C630 2892 0059 Chip GR40Y5V103Z50PT 1 1 10 C

C642 2892 0040 Chip GR40Y5V104Z25PT 1 1 10 C

C700 2807 6553 Electrolytic 6.3RV2-47-T 1 1 20 C

C740 2892 0040 Chip GR40Y5V104Z25PT 1 1 10 C

C741 2892 0040 Chip GR40Y5V104Z25PT 1 1 10 C

C742 2892 0040 Chip GR40Y5V104Z25PT 1 1 10 C

C750 2892 0300 Chip GR40CH470J50PT 1 1 10 C

C751 2892 0300 Chip GR40CH470J50PT 1 1 10 C

C755 2897 0469 Chip GR40UJ470J50PT 1 1 20 C

C756 2892 0059 Chip GR40Y5V103Z50PT 1 1 10 C

C760 2892 0237 Chip GR40W5R222K50PT 1 1 20 C

C761 2892 0059 Chip GR40Y5V103Z50PT 1 1 10 C

C765 2892 0059 Chip GR40Y5V103Z50PT 1 1 10 C

C776 2892 0059 Chip GR40Y5V103Z50PT 1 1 10 C
N C806 2807 7015 Electrolytic 50RV2-3R3-T 1 1 20 C
N C808 2807 6735 Electrolytic 50RV2-2R2-T 1 1 20 C

C810 2807 6567 Electrolytic 50RV2-1-T 1 1 20 C

C830 2892 0040 Chip GR40Y5V104Z25PT 1 1 10 C

C831 2892 0040 Chip GR40Y5V104Z25PT 1 1 10 C

C832 2892 0040 Chip GR40Y5V104Z25PT 1 1 10 C

C835 2892 0040 Chip GR40Y5V104Z25PT 1 1 10 C

C836 2892 0300 Chip GR40CH470J50PT 0 1 10 C

C840 2897 0595 Chip GR40W5R273K50PT 1 1 10 C

C845 2892 0288 Chip GR40CH100D50PT 1 1 10 C

Connectors

CN700 3501 3234 Connector 52030-2020 1 1 5 C

N CN701 3501 7182 Connector 52287-0411 1 1 20 C

Diodes

D100 2390 1176 CHIP MA152WK- (TX) 1 1 20 C

D150 2390 1176 CHIP MA152WK- (TX) 1 1 20 C

D152 2390 1176 CHIP MA152WK- (TX) 1 1 20 C

D155 2390 1302 Chip MA153A- (TX) 1 1 10 C

D180 2390 1568 Chip SC015-2-TE12RA 1 1 20 C

D500 2360 1344 Chip MA3330-M (TX) 1 1 20 C

D700 2390 0469 Chip MA157A- (TX) 1 1 20 C

D703 2390 0469 Chip MA157A- (TX) 1 1 20 C

D705 2390 1358 Vari-cap MA329- (TX) 1 1 10 C

D803 2390 0469 Chip MA157A- (TX) 1 1 20 C

D805 2390 1253 Chip MA152WA- (TX) 1 1 20 C

Filters and Traps

F200 3025 0189 SAW filter SAF38.9MZ60Z 1 0 1 C
F200 3025 0210 SAW filter SAF39.5MZ60Z 0 1 1 C
F201 3025 0728 SIF filter SFSL5.5MDB12 1 0 1 C
F201 3025 0721 SIF filter SFSL6.0MDB12 0 1 1 C
F202 3851 1148 Ceramic discriminator CDSL5.5MC30B12 1 0 1 C
F202 3851 1141 Ceramic discriminator CDSL6.0MC30B12 0 1 1 C
F203 Not used

Fuse

FU100 3632 0245 Fuse ATSCR0.80A 1 1 1 B

Oscillator

N H300 2590 0749 Crystal oscillator HC-49U-C 1 1 1 C

Notes: N – New parts C – TV-1750C

M – Minimum order/supply quantity D – TV-1750D

R – Rank

— 12 —

Linear PCB Assembly No. 3

FOB Japan

N Item Code No. Parts Name Specification C D M N.R.Yen R

Unit Price

ICs

IC200 2114 1827 Linear M51348FP-T1 1 1 1 B

N IC300 2114 3311 Linear M52045FP-T1 1 1 1 B

IC500 2114 2842 Linear MSC1169MS-KR1-620 1 1 1 B
IC600 2114 2464 Linear NJM2070M-T1 1 1 1 B

N IC700 2011 2695 Linear MSM6625-01GSK-640E 1 1 1 B

IC800 2116 0119 OP AMP BA10358F-T1 1 1 1 B

Jacks

JK100 3501 6846 Jack HEC2500-010110 1 1 1 C
JK200 3501 5439 Jack HSJ1456-01-210 1 1 1 C
JK600 3501 5439 Jack HSJ1456-01-210 1 1 1 C

Inductors

N L101 3013 1379 Inductor LEM4532-101K-TP 1 1 20 C
N L102 3013 1379 Inductor LEM4532-101K-TP 1 1 20 C
N L200 3013 1393 Chip LK2125-R82K-TP 1 1 20 C
N L202 3013 1463 Chip LEM3225-100J-TP 1 1 20 C

L700 3013 1281 Chip MMZ2012S601A-TP 1 1 10 C

N L705 3013 1463 Chip LEM3225-100J-TP 1 1 20 C

Transistors

Q100 2210 8026 Chip 2SB709A-R (TX) 1 1 10 C

Q101 2230 7011 Chip 2SD601A-R (TX) 1 1 10 C

Q111 2253 0308 Chip 2SD1119-R (TX) 1 1 10 C

Q200 2252 0707 Chip 2SC4238- (TX) 1 1 10 C

Q300 2210 8026 Chip 2SB709A-R (TX) 1 1 10 C

Q800 2230 7011 Chip 2SD601A-R (TX) 1 1 10 C

Q801 2210 8026 Chip 2SB709A-R (TX) 1 1 10 C

Q802 2230 7011 Chip 2SD601A-R (TX) 1 1 10 C

Q803 2230 7011 Chip 2SD601A-R (TX) 1 1 10 C

Q804 2230 7011 Chip 2SD601A-R (TX) 1 1 10 C

Q805 2253 0476 Chip 2SD1149-S (TX) 1 1 20 C

Q806 2230 7011 Chip 2SD601A-R (TX) 1 1 10 C

Q810 2210 8026 Chip 2SB709A-R (TX) 1 1 10 C

Q811 2230 7011 Chip 2SD601A-R (TX) 1 1 10 C

Resistors

R101 2791 1846 Chip ERJ-6GEYJ153V 1 1 20 C

R102 2791 2095 Chip ERJ-6GEYJ682V 1 1 20 C

R103 2797 1589 Chip ERJ-6GEYJ511V 1 1 20 C

R111 2797 0014 Chip ERJ-6GEYJ821V 1 1 20 C

R115 2791 0238 Chip ERJ-6GEYJ560V 1 1 20 C

R117 2792 0110 Chip jumper ERJ-6GEYOR00V 1 0 20 C

R117 2797 0630 Chip ERJ-6GEYJ470V 0 1 20 C

R133 2797 0658 Chip ERJ-6GEYJ220V 1 1 20 C

R150 2792 0110 Chip jumper ERJ-6GEYOR00V 0 1 20 C

R201 2791 2117 Chip ERJ-6GEYJ820V 1 1 20 C

R202 2791 2095 Chip ERJ-6GEYJ682V 1 1 20 C

R203 2791 0720 Chip ERJ-6GEYJ222V 1 1 20 C

R204 2791 0831 Chip ERJ-6GEYJ681V 1 1 20 C

R205 2797 0658 Chip ERJ-6GEYJ220V 1 1 20 C

R207 2791 1161 Chip ERJ-6GEYJ151V 1 1 10 C

R208 2791 0734 Chip ERJ-6GEYJ272V 1 1 20 C

R209 2791 0313 Chip ERJ-6GEYJ103V 1 1 10 C

R210 2791 0305 Chip ERJ-6GEYJ472V 1 1 20 C

R212 2791 0720 Chip ERJ-6GEYJ222V 1 1 20 C

R215 2791 0769 Chip ERJ-6GEYJ563V 1 1 20 C

Notes: N – New parts C – TV-1750C

M – Minimum order/supply quantity D – TV-1750D

R – Rank

— 13 —

Linear PCB Assembly No. 4

FOB Japan

N Item Code No. Parts Name Specification C D M N.R.Yen R

Unit Price

R222 2797 0630 Chip ERJ-6GEYJ470V 1 1 20 C

R223 2791 0615 Chip ERJ-6GEYJ154V 1 1 20 C

R224 2797 1127 Chip ERJ-6GEYK475V 1 1 20 C

R229 2791 2176 Chip ERJ-6GEYJ471V 1 1 20 C

R230 2791 1131 Chip ERJ-6GEYJ271V 1 1 20 C

R236 2791 2040 Chip ERJ-6GEYJ124V 1 1 20 C

R239 2791 0734 Chip ERJ-6GEYJ272V 1 1 20 C

R241 2791 1919 Chip ERJ-6GEYJ274V 1 1 20 C

R246 2791 1420 Chip ERJ-6GEYJ331V 1 1 20 C

R247 2791 0815 Chip ERJ-6GEYJ102V 1 1 10 C

R305 2791 0815 Chip ERJ-6GEYJ102V 1 1 10 C

R306 2791 2109 Chip ERJ-6GEYJ393V 1 1 20 C

R307 2791 2176 Chip ERJ-6GEYJ471V 1 1 20 C

R310 2791 1871 Chip ERJ-6GEYJ474V 1 1 20 C

R311 2791 1650 Chip ERJ-6GEYJ122V 1 1 20 C

R312 2791 0815 Chip ERJ-6GEYJ102V 1 1 10 C

R313 2791 0777 Chip ERJ-6GEYJ104V 1 1 10 C

R314 2791 0313 Chip ERJ-6GEYJ103V 1 1 10 C

R322 2791 0607 Chip ERJ-6GEYJ333V 1 1 20 C

R325 2791 1684 Chip ERJ-6GEYJ183V 1 1 20 C

R326 2797 1015 Chip ERJ-6GEYK225V 1 1 20 C

R330 2797 0014 Chip ERJ-6GEYJ821V 1 1 20 C

R331 2791 2176 Chip ERJ-6GEYJ471V 1 1 20 C

R335 2795 3430 Chip ERJ-6GEYJ223V 1 1 20 C

R336 2797 0028 Chip ERJ-6GEYJ683V 1 1 20 C

R342 2795 3430 Chip ERJ-6GEYJ223V 1 1 20 C

R343 2795 3430 Chip ERJ-6GEYJ223V 1 1 20 C

R500 2791 1390 Chip ERJ-6GEYJ473V 1 1 10 C

R501 2791 0769 Chip ERJ-6GEYJ563V 1 0 20 C

R502 2791 1901 Chip ERJ-6GEYJ184V 1 0 20 C

R503 2797 0679 Chip ERJ-6GEYJ224V 0 1 20 C

R541 2795 3430 Chip ERJ-6GEYJ223V 1 1 20 C

R545 2791 1871 Chip ERJ-6GEYJ474V 1 1 20 C

R550 2791 2079 Chip ERJ-6GEYJ562V 1 1 20 C

R606 2797 2345 Chip ERJ-8GEYK4R7V 1 1 20 C

R607 2797 2345 Chip ERJ-8GEYK4R7V 1 1 20 C

R610 2791 2079 Chip ERJ-6GEYJ562V 1 0 20 C

R610 2791 0734 Chip ERJ-6GEYJ272V 0 1 20 C

R611 2797 3297 Chip ERJ-6GEYJ911V 1 1 20 C

R615 2791 0742 Chip ERJ-6GEYJ332V 1 1 10 C

R641 2791 0777 Chip ERJ-6GEYJ104V 1 1 10 C

R645 2797 0630 Chip ERJ-6GEYJ470V 1 1 20 C

R700 2792 0110 Chip jumper ERJ-6GEYOR00V 1 1 20 C

R703 2797 0945 Chip ERJ-6GEYJ105V 1 1 20 C

R704 2791 0607 Chip ERJ-6GEYJ333V 1 1 20 C

R705 2791 0769 Chip ERJ-6GEYJ563V 1 1 20 C

R718 2792 0110 Chip jumper ERJ-6GEYOR00V 1 1 20 C

R719 Not used

R725 2797 0245 Chip ERJ-6GEYJ181V 1 1 20 C
N R726 2797 3605 Chip ERJ-6GEYF821V 1 1 20 C

R727 2797 1904 Chip ERJ-6GEYF102V 1 1 20 C

R730 2791 2079 Chip ERJ-6GEYJ562V 1 1 20 C

R733 2791 0777 Chip ERJ-6GEYJ104V 1 1 10 C

R734 2791 0607 Chip ERJ-6GEYJ333V 1 1 20 C

Notes: N – New parts C – TV-1750C

M – Minimum order/supply quantity D – TV-1750D

R – Rank

— 14 —

Linear PCB Assembly No. 5

FOB Japan

N Item Code No. Parts Name Specification C D M N.R.Yen R

Unit Price

R738 2791 1871 Chip ERJ-6GEYJ474V 1 1 20 C

R740 2791 1633 Chip ERJ-6GEYJ123V 1 1 20 C

R808 2791 1846 Chip ERJ-6GEYJ153V 1 1 20 C

R809 2791 1846 Chip ERJ-6GEYJ153V 1 1 20 C

R810 2791 1846 Chip ERJ-6GEYJ153V 1 1 20 C

R815 2791 0305 Chip ERJ-6GEYJ472V 1 1 20 C

R816 2795 3430 Chip ERJ-6GEYJ223V 1 1 20 C

R817 2795 3430 Chip ERJ-6GEYJ223V 1 1 20 C

R819 2797 1358 Chip ERJ-6GEYJ203V 1 1 20 C

R820 2791 1901 Chip ERJ-6GEYJ184V 1 1 20 C

R821 2797 0615 Chip ERJ-6GEYJ154V 1 1 20 C

R822 2797 1358 Chip ERJ-6GEYJ203V 1 1 20 C
N R824 2797 3612 Chip ERJ-6GEYF823V 1 1 20 C
N R825 2797 3598 Chip ERJ-6GEYF684V 1 1 20 C

R827 2791 0607 Chip ERJ-6GEYJ333V 1 1 20 C

R830 2797 0679 Chip ERJ-6GEYJ224V 1 1 20 C

R833 2795 3430 Chip ERJ-6GEYJ223V 1 1 20 C

R834 2791 0777 Chip ERJ-6GEYJ104V 1 1 10 C

R835 2797 1491 Chip ERJ-6GEYF103V 1 1 20 C

R836 2797 1491 Chip ERJ-6GEYF103V 1 1 20 C

Switch

N SW100 3412 0938 Slide switch ESD-11V231 1 1 1 C

Coils and Converter

T100 3065 0469 DC-DC converter LC12U-31 1 1 1 C
T200 3841 0700 Coil 5KAC-03A 1 1 1 C
T201 3841 0700 Coil 5KAC-03A 1 1 1 C

Tuners

TU200 1013 5315 Tuner TEPE5-01 1 0 1 C
TU200 1013 5525 Tuner TEPB5-02 0 1 1 C

Variable resistors

VR100 2775 1316 Chip semi-fixed resistor EVM-1SSW50B53 1 1 1 C
VR200 2775 1211 Chip semi-fixed resistor EVM-1SSW50B54 1 1 1 C
VR300 2775 1323 Chip semi-fixed resistor EVM-1SSW50B15 1 1 1 C
VR301 2775 1211 Chip semi-fixed resistor EVM-1SSW50B54 1 1 1 C
VR600 2765 0616 Volume RK09H11T-10KB 1 1 1 C
VR700 2775 1323 Chip semi-fixed resistor EVM-1SSW50B15 1 1 1 C
VR800 2765 1232 Volume RK09H11T-100KA 1 1 10 C

Notes: N – New parts C – TV-1750C

M – Minimum order/supply quantity D – TV-1750D

R – Rank

— 15 —

BL PCB ASSEMBLY

FOB Japan

N Item Code No. Parts Name Specification C D M N.R.Yen R

Unit Price

Capacitors

C925 2825 0301 TF ECQ-V1H184JZ 1 1 20 C

C927 2813 1743 Ceramic DE0905SL181J2K 1 1 20 C

Fuses

FU900 3632 0308 Temperature EYP-1BF102L 1 1 1 B
FU901 3632 0308 Temperature EYP-1BF102L 1 1 1 B

Coil

L950 3013 0756 Choke RCH-875-101K 1 1 5 C

Transistors

Q950 2253 0287 Chip 2SD965-R 1 1 10 C

Q951 2253 0287 Chip 2SD965-R 1 1 10 C

Resistor

R950 2609 0266 Chip ERD-S2TJ821A 1 1 20 C

Switches

N SW700 3412 1029 Switch SKHHAL 1 1 20 C
N SW701 3412 1029 Switch SKHHAL 1 1 20 C

Transformer

T950 3012 1001 Inverter NT-04 1 1 1 C

Notes: N – New parts C – TV-1750C

M – Minimum order/supply quantity D – TV-1750D

— 16 —

MECHANICAL PARTS LIST

FOB Japan

N Item Code No. Parts Name Specification C D M N.R.Yen R

Unit Price

N 1 6608 7228 BL ass'y K211111A*1 1 1 1 A
N 1-2 6608 0170 Flat cable A-K541 K411565-1 1 1 1 C

1-3 6607 0690 Insulation sheet D-K508 K410441-3 1 1 1 C
N 1-4 6608 6280 Reflection sheet K526 K41861-1 1 1 1 C
N 1-5 6608 6270 Shield case D-K526 K211007-1 1 1 1 C
N 1-6 6608 6240 Shield case C-K526 K311294-1 1 1 1 C

1-7 3632 0308 Temperature fuse EYP-1BF102L 2 2 1 B

1-8 3851 1484 Fluorescent lamp 8.76AD1P2-CA11 1 1 1 A
N 2 6608 6300 Battery spring C-K526 K311313-1 2 2 1 C
N 3 6608 6200 Side case A-K526 K110691-1 1 1 1 C
N 4 6608 6310 Battery spring D-K526 K311314-1 1 1 1 C
N 5 6608 6560 SW knob A-K526 K311299-1 1 1 1 C
N 6 6608 7235 Upper case ass'y K211107*1 1 0 1 C
N 6 6608 7678 Upper case ass'y K211107*4 0 1 1 C

6-1 6600 2220 Adhesive tape A-K52 K451-5 2 2 10 C
N 6-2 6608 6330 T button A-K526 K311318-1 1 1 1 C
N 6-3 6608 7271 Adhesive tape A-K502 K410903A-2 2 2 10 C

7 3831 0567 Speaker 2803BFB 1 1 1 B

N 8 6608 7231 Display unit K311437*1 1 1 1 A

9 6608 6190 Lower case BAA-K526 K110682-2 1 1 1 C

10 6606 2130 Stand A-K331 K310518-1 1 1 10 C

N 11 6608 7234 Battery cover ass'y K411910*1 1 1 1 C

12 3851 1043 Rod antenna YH790323 1 1 1 C
N 13 6608 8560 PCB-K526C-L unit K311439*1 1 0 1 A
N 13 6608 7598 PCB-K526D-L unit K311439*3 0 1 1 A
N 14 6608 6230 Display plate CDA-K526 K411831-1 1 0 1 C
N 14 6608 7140 Display plate DAM-K526 K411831-3 0 1 1 C
N 15 6608 6360 Battery spring A-K526 K311321-1 1 1 1 C
N 16 6608 6370 Battery spring B-K526 K411830-1 1 1 1 C

17 5860 0420 Precision (+) tapping screw PS3,1.7x4.0Ni 7 7 50 X

18 5860 2380 Precision (+) tapping screw PS3,1.7x3.5Bk 2 2 50 X

20 5860 1449 Precision (+) tapping screw PS3,1.7x8.0Bk 5 5 50 X

21 6605 0011 Screw A-K334 K410096A-1 1 1 20 X
N 22 6608 7610 Rating plate CIM-K526 K411847-3 1 1 20 X
N 22 6608 7170 Rating plate DAM-K526 K411847-8 1 1 20 X

Notes: N – New parts C – TV-1750C

Q – Quantity D – TV-1750D

— 17 —

H

EXPLODED VIEW / DISASSEMBLY

D

5

6

7

I

F

4

G

C

3

E

1-2

1-6

1

2

1-3

6-2

8

G

1-8

1-7

1-4

1-5

G

A

G

G

9

B

I

J

I

0

— 18 —

WIRING DIAGRAM

— 19 —

Linear PCB

SCHEMATIC DIAGRAMS AND WAVEFORMS

— 20 —

Linear PCB (TV-1750D)

SCHEMATIC DIAGRAMS AND WAVEFORMS

— 21 —

BL PCB (TV-1750C)

BL PCB (TV-1750D)

HP950 FromL

Vcc1-1
Vcc2-10
KDB

GND

HP900

FU900

102deg

1
2
3
4

HP901 HP902

Vcc1-1

FU901

102deg

CP903

CP902

C770

HP903 CP901

OPEN

C771

OPEN

SW700

SKHHAL

SW701

SKHHAL

UP

DOWN

GND

Vcc1-1

C931

OPEN

HP950 FromL

Vcc1-1
Vcc2-10
KDB

GND

HP900

FU900

102deg

1
2
3
4

HP901 HP902

Vcc1-1

FU901

102deg

CP903

CP902

HP903 CP901

UP

SW700

SKHHAL

DOWN

SW701

SKHHAL

GND

Vcc1-1

Vcc9

CP900 CK100u

L950

OPEN

C930

R950

820

Q951 2SD965-R

Q950 2SD965-R

C925

TF50V0.18

T950

NT-04

5

4

3

2

1

CP990

C927

10

CC2KV180p

12

HP905

LA900

2.5"(ST)

HP906

Vcc9

CP900 CK100u

L950

Q950 2SD965-R

R950

820

C925

Q951 2SD965-R

TF50V0.18

GND

T950

NT-04

5

4

3

2

1

CP990

C927

10

CC2KV180p

12

HP905

LA900

2.5"(ST)

HP906

GND

— 3 —— 22 —

WAVEFORMS

— 23 —

8-11-10, Nishi-Shinjuku
Shinjuku-ku, Tokyo 160, Japan
Telephone: [phone]