Emerson EWC1902 manuals

Emerson EWC1902 Service Manual (92 pages)

Brand: Emerson | Category: CRT TVs | Size: 5.93 MB |

SERVICE MANUAL

IMPORTANT SAFETY NOTICE

MAIN SECTION

SPECIFICATIONS

<AUDIO>

IMPORTANT SAFETY PRECAUTIONS

Precautions during Servicing

Safety Check after Servicing

STANDARD NOTES FOR SERVICING

Tweezers

Soldering Iron

Presolder

Flat Pack-IC

Instructions for Handling

Semiconductors

PREPARATION FOR SERVICING

1 92 3 4 5 6 7 8

1011 1412

[1] Rear Cabinet

[2] Tray Chassis

[4] Main CBA

[3] Deck Unit

1-6-2 T7300DC

1-6-3 T7300DC

1-6-4 T7300DC

1-6-5 T7300DC

Fig. 1-1

Remote control unit (Bottom)

3. TV AGC Adjustment

4-1. H Adjustment

4-2. C-Trap Adjustment

4-3. Y DL Time Adjustment

5. V. Size Adjustment

6. V. Shift Adjustment

PATTERN GENERATOR

RF INPUT

9. Sub-Brightness Adjustment

10. Focus Adjustment

12. CCS Text Box Location

13.Purity Adjustment

14. Convergence Adjustment

BLOCK DIAGRAMS

Video Block Diagram

Audio Block Diagram

Chroma/Tuner Block Diagram

CRT/H.V. Block Diagram

HOT COLD

MECHANICAL TROUBLE INDICATOR

Countermeasure for Mechanical

Malfunction

Repair method #1

Repair method #2

Repair method #3

Repair method #4

Standard Notes

T7300SCM1

1-9-6 1-9-7 1-9-8 T7300SCM2

T7300SCM3

Main 4/4 Schematic Diagram

Main CBA Top View

Sensor CBA

Top View

(START-SENSOR)

Main CBA Bottom View

CRT CBA Top View

CRT CBA Bottom View

Z11WF1-10-1 1-10-2

WIRING DIAGRAM

SYSTEM CONTROL TIMING CHARTS

IC PIN FUNCTION DESCRIPTIONS

LEAD IDENTIFICATIONS

DECK MECHANISM

STANDARD MAINTENANCE

A/C Head

J-1-1, J-1-2

Cam Gear

LDG Belt (B)

Incorrect

Waveform

Erase Head

OF DECK MECHANISM

[20],[23]

Lead with

Blue Stripe

Lead with White Stripe

Fig. DM11

Fig. DM12

Fig. DM14

Fig. DM13

Fig. DM15

Fig. DM16

Fig. DM17

Fig. DM18

Alignment 3

Cam Gear (A), Rack Assembly

EXPLODED VIEWS AND

PARTS LIST SECTION

EXPLODED VIEWS

3-1-3 T7300PEX

DECK EXPLODED VIEWS

Deck Mechanism View 2

Deck Mechanism View 3

MECHANICAL PARTS LIST

CRT Warning Label

CRT Type No

ELECTRICAL PARTS LIST

20020205 3-3-2 T7300EL

20020205 3-3-3 T7300EL

20020205 3-3-4 T7300EL

20020205 3-3-5 T7300EL

20020205 3-3-6 T7300EL

20020205 3-3-7 T7300EL

20020205 3-3-8 T7300EL

20020205 3-3-9 T7300EL

SENSOR CBA

DECK PARTS LIST

B359 CLEANER LEVER B361

Type ID No. ID No

A 0VM304413 0VM411114

B 0VM305090 Not used

Printed in Japan

2002-02-20 HO

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Table of contents

Emerson devices