Sony TRINITRON KV-32FS320, TRINITRON KV-27FS320, TRINITRON KV-36FS320, TRINITRON KV-34FS120, TRINITRON KV-38FS120 User Manual

Self Diagnosis

Supported model

SERVICE MANUAL

MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.

KV-27FS320 KV-27FS320 KV-32FS120 KV-32FS120 KV-32FS320 KV-32FS320 KV-34FS120 KV-34FS120 KV-36FS120 KV-36FS120 KV-36FS120

RM-Y196 US SCC-S61S-A

RM-Y196 CANADA SCC-S59N-A

RM-Y195 US SCC-S61P-A

RM-Y195 CANADA SCC-S59K-A

RM-Y196 US SCC-S61T-A

RM-Y196 CANADA SCC-S59P-A

RM-Y195 LATIN NORTH SCC-S73F-A

RM-Y195 LATIN SOUTH SCC-S73G-A

RM-Y195 US SCC-S61Q-A

RM-Y195 CANADA SCC-S59L-A

RM-Y195 HAWAII SCC-S74A-A

BA-6

CHASSIS

KV-36FS320 KV-36FS320 KV-36FS320 KV-38FS120

KV-27FS320 KV-32FS120

RM-Y196 US SCC-S61R-A

RM-Y196 CANADA SCC-S59M-A

RM-Y196 HAWAII SCC-S74B-A

RM-Y195 LATIN NORTH SCC-S73G-A

9-965-964-01

TRINITRON® COLOR TELEVISION

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

TABLE OF CONTENTS

SECTION TITLE PAGE SECTION TITLE PAGE

Speciﬁ cations ................................................................................. 4

Warnings and Cautions .................................................................. 6

Safety Check-Out ........................................................................... 7

Self-Diagnostic Function................................................................. 8

SECTION 1: DISASSEMBLY............................................................... 10

1-1. Rear Cover Removal............................................................ 10

1-2. Chassis Assembly Removal ................................................. 10

1-3. Service Position ...................................................................11

1-4. Picture Tube Removal .......................................................... 12

Anode Cap Removal Procedure........................................... 12

Cable Wire Dressing ............................................................ 13

KV-27FS320/32FS320/36FS320 Models........................ 13

KV-32FS120/34FS120 Models ....................................... 13

KV-36FS120/38FS120 Models ....................................... 18

SECTION 2: SET-UP ADJUSTMENTS................................................ 23

2-1. Beam Landing ...................................................................... 23

2-2. Convergence........................................................................ 24

2-3. Focus ................................................................................... 25

2-4. Screen (G2).......................................................................... 26

2-5. Method of Setting the Service Adjustment Mode ................. 26

2-6. White Balance Adjustments ................................................. 26

SECTION 3: SAFETY RELATED ADJUSTMENTS............................. 27

3-1.

R530, R531 Conﬁ rmation Method (HV Hold-Down

Conﬁ rmation) and Readjustments........................................ 27

3-2. B+ Voltage Conﬁ rmation and Adjustment ............................ 27

SECTION 4: CIRCUIT ADJUSTMENTS.............................................. 28

4-1. Setting the Service Adjustment Mode .................................. 28

4-2. Memory Write Conﬁ rmation Method .................................... 28

4-3. Remote Adjustment Buttons and Indicators ......................... 28

4-4. Service Data Lists ................................................................ 29

KV-27FS320 Service Data ................................................... 29

KV-32FS320 Service Data ................................................... 30

KV-36FS320 Service Data ................................................... 39

KV-32FS120/34FS120 Service Data.................................... 48

KV-36FS120/38FS120 Service Data.................................... 57

4-5. ID Map Table ........................................................................ 57

4-6. A Board Adjustments............................................................ 58

SECTION 5: DIAGRAMS..................................................................... 61

5-1. Circuit Boards Location ........................................................ 61

5-2. Printed Wiring Board and Schematic Diagram Information.. 61

5.3. Block Diagram and Schematics ........................................... 62

A Board Schematic Diagram (1 of 2).................................... 63

A Board Schematic Diagram (2 of 2).................................... 64

HM Board Schematic Diagram (1 of 4)

(KV-27FS320/32FS320/36FS320 Only) .................. 66

HM Board Schematic Diagram (2 of 4)

(KV-27FS320/32FS320/36FS320 Only) .................. 67

HM Board Schematic Diagram (3 of 4)

(KV-27FS320/32FS320/36FS320 Only) .................. 68

HM Board Schematic Diagram (4 of 4)

(KV-27FS320/32FS320/36FS320 Only) .................. 68

V Board Schematic Diagram ............................................... 69

M Board Schematic Diagram ............................................... 70

C Board Schematic Diagram ............................................... 72

HN Board Schematic Diagram

(KV-27FS320/32FS320/36FS320 Only) .................. 73

HR Board Schematic Diagram

(KV-27FS320/32FS320/36FS320 Only) .................. 73

HS Board Schematic Diagram

(KV-32FS120/34FS120/36FS120/38FS120 Only)... 73

HU/HD Board Schematic Diagram

(KV-27FS320/32FS320/36FS320 Only) .................. 76

5-4. Semiconductors ................................................................... 79

SECTION 6: EXPLODED VIEWS........................................................ 80

6-1. Chassis

(KV-27FS320/32FS320/36FS320 Only)............................... 80

6-2. Picture Tube

(KV-27FS320/32FS320/36FS320 Only)............................... 81

6-3. Chassis

(KV-32FS120/34FS120/36FS120/38FS120 Only) ............... 82

6-4. Picture Tube

(KV-32FS120/34FS120/36FS120/38FS120 Only) ............... 83

SECTION 7: ELECTRICAL PARTS LIST........................................... 84

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

SPECIFICATIONS

KV-27FS320 KV-32FS120 KV-32FS320 KV-34FS120

Power Requirements 120V, 60Hz 120V, 60Hz 120V, 60Hz 120V-220V, 50/60Hz Number of Inputs/Outputs

S Video Y,P

Speaker Output (W)

Power Consumption (W)

In Use (Max) 180W 175W 190W 175W (170W Chile, Peru, Bolivia)

In Standby (Max)

Dimensions (W x H x D)

Mass

Video

, P

Audio

333 3 111 1 212 1

232 3

RF 111 1

10W x 2 10W x 2 10W x 2 10W x 2

mm 784 x 601.5 x 520 mm 898 x 696 x 576 mm 898 x 682 x 584 mm 898 x 696 x 576 mm

1W 1W 1W 1W

7/8

5/8

x 23

x 20

1/2

in 35

3/8

x 27 3/8 x 22

5/8

in 35

3/8

x 26 7/8 x 23 in 35

3/8

x 27 3/8 x 22

5/8

kg 47.4 kg 75 kg 75.80 kg 75 kg

lbs 104 lbs 8 oz 165 lbs 6 oz 167 lbs 2 oz 165 lbs 6 oz

KV-36FS120 KV-36FS320 KV-38FS120

Power Requirements 120V, 60Hz 120V, 60Hz 120V-220V, 50/60Hz Number of Inputs/Outputs

S Video Y,P

Video

, P

Audio

333 111 121

323

RF 111

Speaker Output (W)

10W x 2 10W x 2 10W x 2

Power Consumption (W)

In Use (Max) 180W 190W 180W

In Standby (Max)

1W 1W 1W

Dimensions (W x H x D)

mm 985 x 774 x 633 mm 1020 x 760 x 640 mm 985 x 774 x 633 mm

3/4

x 30 1/2 x 24

7/8

in 40

1/8

x 29 7/8 x 25

1/4

in 38

3/4

x 30 1/2 x 24

7/8

Mass

kg 98.4 kg 101.2 kg 98.4 kg

lbs 216 lbs 15 oz 223 lbs 2 oz 216 lbs 15 oz

TruSurround

by SRS

™

TruSurround is a trademark of SRS Labs, Inc. SRS and the SRS symbol are registered trademarks of SRS Labs, Inc. in the United States and in select foreign countries. SRS and TruSurround are incorporated under license from SRS Labs, Inc. and are protected

The SRS (SOUND RETRIEVAL SYSTEM) is manufactured by Sony Corporation under license from SRS Labs, Inc. It is covered by U.S. Patent No. 4,748,669. Other U.S. and foreign patents pending.

SRS (SOUND RETRIEVAL SYSTEM)

under United States Patent Nos. 4,748,669 and 4,841,572 with numerous additional issued and pending foreign patents. Purchase of this product does not convey the right to sell recordings made with the TruSurround technology.

The word ‘SRS’ and the SRS symbol are registered trademarks of SRS Labs, Inc. BBE and BBE symbol are trademarks of BBE Sound, Inc. and are licensed by BBE Sound, Inc. under U.S. Patent No. 4,638,258 and 4,482,866.

1 Vp-p 75 ohms unbalanced, sync negative

Y: 1 Vp-p 75 ohms unbalanced, sync negative

C: 0.286 Vp-p (Burst signal), 75 ohms

3) Y: 1.0 Vp-p, 75 ohms, sync negative; PB: 0.7 Vp-p, 75 ohms;

PR Vp-p, 75 ohms.

500 mVrms (100% modulation), Impedance: 47 kilohms

This speciﬁ cation is the maximum wattage.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Design and speciﬁ cations are subject to change without notice.

Television system

American TV standard, NTSC

Channel coverage

VHF: 2-13/ UHF: 14-69/ CATV: 1-125

Antenna

75-ohm external antenna terminal for VHF/UHF

Picture tube

FD Trinitron® tube

Visible screen size

27-inch picture measured diagonally (KV-27FS320 Only) 32-inch picture measured diagonally (KV-32FS120/32FS320/34FS120 Only) 36-inch picture measured diagonally (KV-36FS120/36FS320/38FS120 Only)

Actual screen size

29-inch measured diagonally (KV-27FS320 Only) 34-inch measured diagonally (KV-32FS120/32FS320/34FS120 Only) 38-inch measured diagonally (KV-36FS120/36FS320/38FS120 Only)

Supplied Accessories

Remote Commander RM-Y195 (All Except KV-27FS320/32FS320/36FS320) Remote Commander RM-Y196(KV-27FS320/32FS320/36FS320 Only) Two Size AA (R6) Batteries

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Optional Accessories

TV Stand SU-27F2 (KV-27FS320 Only) SU-32F2 (KV-32FS120/32FS320/34FS120 Only) SU-36F2 (KV-36FS120/36FS320/38FS120 Only)

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

WARNINGS AND CAUTIONS

CAUTION

Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield, or carbon painted on the CRT, after removing the anode.

WARNING!!

An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis. The chassis of this receiver is directly connected to the AC power line.

! SAFETY-RELATED COMPONENT WARNING!!

Components identiﬁ ed by shading and ! mark on the schematic diagrams, exploded views, and in the parts list are critical for safe operation. Replace these components with Sony parts whose part numbers appear as shown in this manual or in supplements published by Sony. Circuit adjustments that are critical for safe operation are identiﬁ ed in this manual. Follow these procedures whenever critical components are replaced or improper operation is suspected.

ATTENTION!!

Apres avoir deconnecte le cap de l’anode, court-circuiter l’anode du tube cathodique et celui de l’anode du cap au chassis metallique de l’appareil, ou la couche de carbone peinte sur le tube cathodique ou au blindage du tube cathodique.

Aﬁ n d’eviter tout risque d’electrocution provenant d’un chássis sous tension, un transformateur d’isolement doit etre utilisé lors de tout dépannage. Le chássis de ce récepteur est directement raccordé à l’alimentation du secteur.

! ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!

Les composants identiﬁ es par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de pieces sont d’une importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants Sony dont le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les reglages de circuit dont l’importance est critique pour la securite du fonctionnement sont identiﬁ es dans le present manuel. Suivre ces procedures lors de chaque remplacement de composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety checks before releasing the set to the customer:

1. Check the area of your repair for unsoldered or poorly soldered connections. Check the entire board surface for solder splashes and bridges.

2. Check the interboard wiring to ensure that no wires are “pinched” or touching high-wattage resistors.

3. Check that all control knobs, shields, covers, ground straps, and mounting hardware have been replaced. Be absolutely certain that you have replaced all the insulators.

4. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement.

5. Look for parts which, though functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement.

6. Check the line cords for cracks and abrasion. Recommend the replacement of any such line cord to the customer.

7. Check the B+ and HV to see if they are speciﬁ ed values. Make sure your instruments are accurate; be suspicious of your HV meter if sets always have low HV.

8. Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.

Leakage Test

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers’ instructions to use these instructions.

2. A battery-operated AC milliampmeter. The Data Precision 245 digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low voltage scale. The Simpson’s 250 and Sanwa SH-63TRD are examples of passive VOMs that are suitable. Nearly all battery-operated digital multimeters that have a 2 VAC range are suitable (see Figure A).

How to Find a Good Earth Ground

A cold-water pipe is a guaranteed earth ground; the cover-plate retaining screw on most AC outlet boxes is also at earth ground. If the retaining screw is to be used as your earth ground, verify that it is at ground by measuring the resistance between it and a cold-water pipe with an ohmmeter. The reading should be zero ohms.

If a cold-water pipe is not accessible, connect a 60- to 100-watt trouble- light (not a neon lamp) between the hot side of the receptacle and the retaining screw. Try both slots, if necessary, to locate the hot side on the line; the lamp should light at normal brilliance if the screw is at ground potential (see Figure B).

To Exposed Metal

Parts on Set

Trouble Light

0.15 F

1.5 K Ω

Voltmeter

(0.75 V)

Earth Ground

Figure A. Using an AC voltmeter to check AC leakage. Figure B. Checking for earth ground.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

AC Outlet Box

Ohmmeter

Cold-water Pipe

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

SELF-DIAGNOSTIC FUNCTION

Self Diagnosis

Supported model

The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER LED will automatically begin to ﬂ ash. The number of times the LED ﬂ ashes translates to a probable source of the problem. A deﬁ nition of the STANDBY/TIMER LED ﬂ ash indicators is listed in the instruction manual for the user’s knowledge and reference. If an error symptom cannot be reproduced, the Remote Commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these problems occur.

Diagnostic Test Indicators

When an error occurs, the STANDBY/TIMER LED will ﬂ ash a set number of times to indicate the possible cause of the problem. If there is more than one error, the LED will identify the ﬁ rst of the problem areas. Results for all of the following diagnostic items are displayed on screen. No error has occurred if the screen displays a “0”.

Diagnostic Item

Description

Power does not turn on

+B overcurrent (OCP)*

I-Prot

IK (AKB)

STANDBY/ TIMER

No. of times

lamp ﬂ ashes

Does not light

2 times

4 times

5 times

Self-Diagnositc

Display/

Diagnostic Result

2:0 or 2:1

4:0 or 4:1

5:0 or 5:1

Probable Cause Location

• Power cord is not plugged in.

• Fuse is burned out (F601). (A Board)

• H.OUT (Q502) is shorted. (A Board)

• IC702 is shorted. (C Board)

• +13V is not supplied. (A Board)

• IC561 is faulty. (A Board)

• IC001 is faulty. (M Board)

• Screen (G2) is improperly adjusted.**

Detected Symptoms

• Power does not come on.

• No power is supplied to the TV.

• AC Power supply is faulty.

• Power does not come on.

• Load on power line is shorted.

• Has entered standby state after horizontal raster.

• Vertical deﬂ ection pulse is stopped.

• Power line is shorted or power supply is stopped.

• No raster is generated.

• CRT Cathode current detection reference pulse output is small.

*If a +B overcurrent is detected, stoppage of the vertical deﬂ ection is detected simultaneously. The symptom that is diagnosed ﬁ rst by the mircrocontroller is displayed on the screen. **Refer to Screen (G2) Adjustments in Section 2-4. of this manual.

Display of Standby/Timer LED Flash Count

2 times

4 times

5 times

LED ON 0.3 sec.

LED OFF 0.3 sec.

LED OFF

3 sec.

Standby/Timer LED

Diagnostic Item Flash Count*

+B Overcurrent 2 times I-Prot 4 times IK (AKB) 5 times *One ﬂ ash count is not used for self-diagnostic.

Stopping the Standby/Timer LED Flash

Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER LAMP from ﬂ ashing.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Self-Diagnostic Screen Display

For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be conﬁ rmed, it is possible to bring up past occurrences of failure on the screen for conﬁ rmation.

To Bring Up Screen Test

In standby mode, press buttons on the Remote Commander sequentially, in rapid succession, as shown below:

Display

Self-Diagnostic Screen Display

Handling of Self-Diagnostic Screen Display

Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you have completed the repairs, clear the result display to “0”. Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after completion of the repairs.

Clearing the Result Display

To clear the result display to “0”, press buttons on the Remote Commander sequentially when the diagnostic screen is displayed, as shown below:

Channel

Quitting the Self-Diagnostic Screen

To quit the entire self-diagnostic screen, turn off the power switch on the Remote Commander or the main unit.

Channel

SELF DIAGNOSTIC

2: +B OCP 0

3: +B OVP N/A

4: VSTOP 0

5: AKB 1

101: WDT N/A

ENTER

Sound Volume

Numeral “0” means that no fault was detected.

Numeral “1” means a fault was detected one time only.

Power ON

Note that this differs from entering the Service Mode (Sound Volume

Self-Diagnostic Circuit

FROM

C BOARD

IC702 PIN 5

M BOARD

IC001

Y/CHROMA JUNGLE

IK-AKBIN

A BOARD

IC561

V. OUT

REF

M BOARD

IC001

SYSTEM

IO-BDAT

I-Prot

M BOARD

IC002

MEMORY

BDA

FROM

A BOARD

IC501

PIN 1

+B overcurrent (OCP)

Occurs when an overcurrent on the +B (135V) line is detected by pin 72 of IC001 (M Board). If the voltage of pin 72 of IC001 (M Board) is less than 1V when V.SYNC is more than seven verticals in a period, the unit will automatically turn off.

I-Prot

Occurs when an absence of the vertical deﬂ ection pulse is detected by pin 78 of IC001 (M Board). Power supply will shut down when waveform interval exceeds 2 seconds.

IK (AKB)

If the RGB levels* do not balance within 2 seconds after the power is turned on, this error will be detected by IC001 (M Board). TV will stay on, but there will be no picture.

I-HLDWN

O-LED

DISPLAY

*(Refers to the RGB levels of the AKB detection Ref pulse that detects 1K).

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

1-1. REAR COVER REMOVAL

(KV-27FS320 PICTURED)

Rear Cover

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

SECTION 1: DISASSEMBLY

Screws +BVTP 4X16 TYPE2 TT(B)

(KV-27FS320/32FS320/36FS320 Only)

Screws +BVTP 4X16 TYPE2 TT(B) (KV-32FS120/34FS120/ 36FS120/38FS120 Only)

Screws +BVTP 3X12 TYPE2 TT(B)

(KV-27FS320/32FS320/36FS320 Only)

Screws +BVTP 3X12 TYPE2 TT(B) (KV-32FS120/34FS120/ 36FS120/38FS120 Only)

1-2. CHASSIS ASSEMBLY REMOVAL

Claw

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Chassis Assembly

1-3. SERVICE POSITION

(KV-27FS320 PICTURED)

Press on catch tab to release A Board.

Disconnect cables as needed to allow A Board to be removed.

C Board

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

M Board

A Board

HU Board

V Board

HM Board

HN Board

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

1-4. PICTURE TUBE REMOVAL

WARNING: BEFORE REMOVING THE ANODE CAP

High voltage remains in the CRT even after the power is disconnected. To avoid electric shock,

discharge CRT before attempting to remove the anode cap. Short between anode and CRT

coated earth ground strap.

1. Discharge the anode of the CRT and remove the

anode cap.

2. Unplug all interconnecting leads from the

deﬂ ection yoke, neck assembly, degaussing coils and CRT grounding strap.

3. Remove the C Board from the CRT.

4. Remove the chassis assembly.

5. Loosen the neck assembly ﬁ xing screw and remove.

6. Loosen the deﬂ ection yoke ﬁ xing screw and remove.

7. Place the set with the CRT face down on a cushion and remove the degaussing coil holders.

8. Remove the degaussing coils.

9. Remove the CRT grounding strap and spring tension devices.

10. Unscrew the four CRT ﬁ xing screws [located on each CRT corner] and remove the CRT [Take care not to handle the CRT by the neck].

ANODE CAP REMOVAL PROCEDURE

WARNING: High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, discharge CRT before attempting to

remove the anode cap. Short between anode and coated earth ground strap of CRT. NOTE: After removing the anode cap, short circuit the anode of the picture tube and the anode cap to either the metal chassis, CRT shield, or carbon painted on the CRT.

REMOVAL PROCEDURES

Anode Button

Turn up one side of the rubber cap in the direction indicated by arrow

HOW TO HANDLE AN ANODE CAP

1. Do not use sharp objects which may cause damage to the surface of the anode cap.

2. To avoid damaging the anode cap, do not squeeze the rubber covering too hard. A material ﬁ tting called a shatter-hook terminal is built into the rubber.

3. Do not force turn the foot of the rubber cover. This may cause the shatter-hook terminal to protrude and damage the rubber.

Use your thumb to pull the rubber cap ﬁ rmly in the direction indicated by arrow

When one side of the rubber cap separates from the anode button, the anode cap can be removed by turning the rubber cap and pulling it in the direction of arrow

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

CABLE WIRE DRESSING

KV-27FS320/32FS320/36FS320 MODELS

(DATA NOT AVAILABLE)

KV-32FS120/34FS120 MODELS

Dress right speaker wire through DGC’s tie wrap. Dress DGC lead wire with a 9mm purse lock

Dress left speaker wire through DGC’s tie wrap.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Dress RGB harness over Rotation coil lead wire. Dress Rotation coil lead wire over DY clip and through rotation coil as shown in picture.

Dress VM and heaters harnesses over RGB to avoid interference with back cover installation.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Dress CRT ground wires under DGC and beside VD board at the middle as picture shows, keep away from focus and HV lead wires.

Dress G2 wire and DF wire as shown in picture.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Dress HV cable and focus wire together using a 5mm purse lock (3-703-981-02). Install purse lock over carbon paint edge.

Dress DY lead wire with a 9mm purse lock (3-703-982-02)

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Dress AC-Cord into CRT support hook as shown in picture. Dress 12P video harness through bottom board’s purse locks and under AC-Cord. Unstall purse locks as shown in picture. Dress lightning wire under 12P harness.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

KV-36FS120/38FS120 MODELS

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Dress right speaker wire through DGC band. Dress DGC lead wire with a 9mm purse lock

Dress left speaker wire through DGC band

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Dress RGB harness over Rotation coil lead wire. Dress Rotation coil lead wire over DY clip and through rotation coil as shown in picture.

Dress earth groun wires under DGC and over VD board.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Bend H-Stat wire towards C board.

Dress G2 wire and DF wire as shown in picture. Dress heaters and VM harnesses on the left side of DY lead wire

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Dress HV cable and focus wire together using a 5mm purse lock, install purse lock 150mm±10 from rubber cap .

Dress HV through standing holder, install holder on CRT’s carbon paint edge

Dress DY lead wire with a 9mm purse lock (3-703-982-02)

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Dress AC-Cord into CRT support hook using a 9mm purse lock as shown in picture. Dress 12P video harness through bottom board’s purse locks and under AC-Cord. Install purse locks as shown in picture. Dress lightning wire under 12P harness.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

SECTION 2: SET-UP ADJUSTMENTS

The following adjustments should be made when a complete realignment is required or a new picture tube is installed.

These adjustments should be performed with rated power supply voltage unless otherwise noted.

Set the controls as follows unless otherwise noted: VIDEO MODE: Pro PICTURE CONTROL: Normal BRIGHTNESS CONTROL: Normal

2-1. BEAM LANDING

Before beginning adjustment procedure:

1. Degauss the entire screen.

2. Feed in the white pattern signal.

ADJUSTMENT PROCEDURE

1. Input a raster signal with the pattern generator.

2. Loosen the deﬂ ection yoke mounting screw, and set the purity control to the center as shown below:

Purity Control

Perform the adjustments in order as follows:

1. Beam Landing

2. Convergence

3. Focus

4. Screen (G2)

5. White Balance

Note Test Equipment Required:

1. Color Bar Pattern Generator

2. Degausser

3. DC Power Supply

4. Digital Multimeter

6. Switch over the raster signal to red and blue and conﬁ rm the condition.

7. When the position of the deﬂ ection yoke is determined, tighten it with the deﬂ ection yoke mounting screw.

8. If landing at the corner is not right, adjust by using the disk magnets.

3. Turn the raster signal of the pattern generator to green.

4. Move the deﬂ ection yoke backward, and adjust with the purity control so that green is in the center and red and blue are even on both sides.

Blue Red

Green

5. Move the deﬂ ection yoke forward, and adjust so that the entire screen becomes green.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

Purity control

corrects this area.

Disk magnets

or rotatable disk

magnets correct

these areas (a-d).

Deflection yoke positioning

corrects these areas.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

2-2. CONVERGENCE

Before starting convergence adjustments:

1 Perform FOCUS, VLIN and VSIZE adjustments.

2. Set BRIGHTNESS control to minimum.

3. Feed in dot pattern.

VERTICAL STATIC CONVERGENCE

1. Adjust V. STAT magnet to converge red, green and blue dots in the center of the screen.

Center dot

RV701

H.STAT

R G B

HORIZONTAL STATIC CONVERGENCE

If the blue dot does not converge with the red and green dots, perform the following:

1. Move H STAT VR magnet (a) to correct insufﬁ cient H.Static convergence.

H STAT VR

V. STAT

BMC MAGNET

PURITY

V.STAT magnet

2. Tilt the V. STAT magnet and adjust static convergence to open or close the V. STAT magnet.

When the V. STAT magnet is moved in the direction of arrow a and b,

red, green, and blue dots move as shown below:

B G

RGB

BGR

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

DYNAMIC CONVERGENCE ADJUSTMENT

Before performing this adjustment, perform Horizontal and Vertical Static Convergence Adjustment.

1. Slightly loosen deﬂ ection yoke screw.

2. Remove deﬂ ection yoke spacers.

3. Move the deﬂ ection yoke for best convergence as shown below:

BGR

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

B R R B (R)(B) (B)(R)

4. Adjust XCV core to balance X axis.

5. Adjust YCH VR to balance Y axis.

6. Adjust vertical red and blue convergence with V.TILT (TLV VR.)

Note: Perform adjustment 3-6 while tracking items 1 and 2.

TLH+ TLH-

SCREEN-CORNER CONVERGENCE

BGR

4. Tighten the deﬂ ection yoke screw.

5. Install the deﬂ ection yoke spacers.

TLH PLATE ADJUSTMENT

1. Input crosshatch pattern.

2. Adjust PICTURE QUALITY to standard, PICTURE and BRIGHTNESS to 50%, and OTHER to standard.

3 Adjust the Horizontal Convergence of red and blue dots by tilting the

TLH plate on the deﬂ ection yoke.

RV701

V.STAT

TLH Plate

1. Afﬁ x a permalloy assembly corresponding to the misconverged areas:

a-d: screen-corner

misconvergence

2-3. FOCUS

1. Adjust FOCUS control for best pictures.

Focus (FV)

Screen (G2)

C Board

XCV

(TLV)

YCH

TLV

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

2-4. SCREEN (G2)

1. Input a dot pattern.

2. Set the PICTURE and BRIGHTNESS controls at minimum and COLOR control at normal.

3. Adjust SBRT, GCUT, BCUT in service mode with an oscilloscope as shown below so that voltages on the red, green, and blue cathodes are 172 ± 2VDC.

172 – 2VDC

Pedestal

Ground

4. Observe the screen and adjust SCREEN (G2) VR in FBT to obtain the faintly visible background of dot signal.

2-5. METHOD OF SETTING THE SERVICE

ADJUSTMENT MODE

SERVICE MODE PROCEDURE

1. Standby mode (power off).

2. Press

Display

Channel 5 Sound Volume

on the Remote Commander (press each button within a second).

Power

2-6. WHITE BALANCE ADJUSTMENTS

1. Input an entire white signal with burst.

2. Set to Service Adjustment Mode.

3. Set the PICTURE and BRIGHTNESS to minimum.

4. Adjust with SBRT if necessary.

ENTER

and 4 .

and 4.

to save into the memory.

5. Select GCUT and BCUT with

6. Adjust with

and 6 for the best white balance.

7. Set the PICTURE and BRIGHTNESS to maximum.

8. Select GDRV and BDRV with

9. Adjust with

10. Press

and 6 for the best white balance.

MUTING

then

SERVICE ADJUSTMENT MODE ON

1. The CRT displays the time being adjusted.

2. Press

3. Press

4. Press

Display

defl

hsiz 16

to save into the memory.

service

ntsc

vchp

then

Category

00000000

ENTER

Mode

Signal Type

or 4 on the Remote Commander to select the time.

or 6 on the Remote Commander to change the data.

MUTING

Item

00000000

Display

Item

SERVICE ADJUSTMENT MODE MEMORY

Turn the set off then on to exit Service Adjustment Mode.

Signal Type

Category

Mode

service defl hsiz 16

ntsc

vchp 00000000 00000000

Display

Item

write

Item Data

MUTING

ENTER

Green

Red

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

A BOARD

IC600, PH602

Adjustment (Y)

SECTION 3: SAFETY RELATED ADJUSTMENTS

3-1. X R530, R531 CONFIRMATION METHOD

(HV HOLD-DOWN CONFIRMATION) AND READJUSTMENTS

The following adjustments should always be performed when replacing the following components which are marked with diagram:

Part Replaced (Y) Adjustment (X)

C531, C532, D519, D520, D521, IC501, IC600, PH602,

HV HOLD-DOWN

R530, R531 R529, R530, R531, R532, R533, R550, T503 (FBT), T504 (DFT)

on the schematic

If the setting indicated in Step 2 of Hold-Down Operation Conﬁ rmation cannot be met, readjustment should be performed by altering the resistance value of R530, R531 component marked with

PREPARATION BEFORE CONFIRMATION

1. Using a Variac, apply AC input voltage: 120 +/- 2.0 VAC.

2. Turn the POWER switch ON.

3. Input a white signal and set the PICTURE and BRIGHT controls to maximum.

4. Conﬁ rm that the voltage of more than 23.0 VDC appears between TP85 and ground on the A Board.

HOLD-DOWN OPERATION CONFIRMATION

1. Connect the current meter between Pin 11 of the FBT (T503) and the PWB land where Pin 11 would normally attach. (See Figure 1).

2. Input a dot signal and set PICTURE and BRIGHTNESS to minimum: IABL = 2175 + 100/ -325 µA.

3. Conﬁ rm the voltage of A Board TP91 is 134.6 ± 1.0 VDC.

4. Connect the digital voltmeter and the DC power supply to TP85 and ground. (See Figure 1).

5. Increase the DC power voltage gradually until the picture blanks out.

6. Turn DC power source off immediately.

7. Read the digital voltmeter indication:

KV-27FS320 Only (standard = 24.78 + 0.0/ - 0.1 VDC).

All except KV-27FS320 (standard = 27.24 + 0.0/ - 0.1 VDC).

8. Input a white signal and set PICTURE and BRIGHTNESS to maximum: IABL = 2175 + 100/ -325 µA.

9. Repeat steps 4 to 7.

Always perform the following adjustments when replacing the following components, which are marked with A Board:

1. Using a Variac, apply AC input voltage: 130 + 2.0/-0.0 VAC

2. Input a monoscope signal.

3. Set the PICTURE control and the BRIGHT control to

4. Conﬁ rm the voltage on A Board between TP23 and ground is less

5. If step 4 is not satisﬁ ed, replace R530 and R531 on A Board and

HOLD-DOWN READJUSTMENT

digital multimeter

T503

FBT

ammeter

3mA DC range

R530

R531

DC Power Supply

TP85

Figure 1

3-2. B+ VOLTAGE CONFIRMATION AND

ADJUSTMENT

on the schematic diagram on the

minimum.

than 136.5 VDC.

repeat the above steps.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

SECTION 4: CIRCUIT ADJUSTMENTS

ELECTRICAL ADJUSTMENTS BY REMOTE COMMANDER

Use the Remote Commander (RM-Y195, RM-Y196) to perform the circuit adjustments in this section.

Test Equipment Required: 1. Pattern generator 2. Frequency counter 3. Digital multimeter 4. Audio oscillator

4-1. SETTING THE SERVICE ADJUSTMENT

MODE

1. Standby mode (Power off).

2. Press the following buttons on the remote commander within a second of each other:

Display

Channel

Sound Volumne

Power

SERVICE ADJUSTMENT MODE ON

1. The CRT displays the item being adjusted.

Item Data 41

2. Press

3. Press

4. Press

Signal

Category

Display Item

or 4 on the Remote Commander to select the item.

or 6 on the Remote Commander to change the data.

MUTING

DEF NTSC 1 NVM OK

M65582AMF-101FPZ0

then

Type

H SIZE

ENTER

Display

Item #

to write into memory.

SERVICE ADJUSTMENT MODE MEMORY

1. Press

Signal Type

Category

Mode

service defl hsiz 16

Signal Type

then

Mode

service defl hsiz 16

ntsc

vchp 00000000 00000000

ntsc

vchp 00000000 00000000

ENTER

Category

on the Remote Commander to initialize.

Display

Item

write

Display

Item Data

Item

Data

write

Carry out Step 1 when adjusting IDs 0-7 and when replacing and adjusting IC002

4-2. MEMORY WRITE CONFIRMATION

METHOD

1. After adjustment, pull out the plug from the AC outlet, then replace the plug in the AC outlet again.

2. Turn the power switch ON and set to Service Mode.

3. Call the adjusted items again to conﬁ rm they were adjusted.

4-3. REMOTE ADJUSTMENT BUTTONS AND

INDICATORS

MUTING

(Enter into memory)

Disp. (Item up)

(Device Item Up)

Disp. (Item down)

(Initialize)

VOLUME (+)

(Service Mode)

RM-Y195

POWER

(Service Mode)

DISPLAY

(Service Mode)

Item (Data up)

Item (Data down)

(Device item down)

ENTER

(Enter into memory)

(Remove from memory)

2. Press

MUTING

then

ENTER

to write into memory.

3. Turn set off then on to exit Service Adjustment Mode.

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

4-4. SERVICE DATA LISTS

KV-27FS320 SERVICE DATA

(DATA NOT AVAILABLE)

KV-27FS320/32FS120/32FS320/34FS120/36FS120/36FS320/38FS120

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