Sony KV-TF21P11, KV-TF21M61, KV-PF21M70 service manual REF. NO. Part no Description, Beznet Assy

Page 63

NOTE:

∙Items with no part number and no description are not stocked because they are seldom required for routine service.

∙The construction parts of an assembled part are indicated with a collation number in the remark column.

6-1. CHASSIS (KV-PF21M70)

[: BVTP 3 × 12 7-685-648-79

L: BVTP 4 × 16 7-685-663-71

KV-PF21M70/TF21M61/TF21M90/TF21P11

SECTION 6

RM-952

 

EXPLODED VIEWS

 

∙ Items marked " * " are not stocked since

The components identified by

they are seldom required for routine

shading and mark !are critical

service. Some delay should be

for safety.

anticipated when ordering these items.

Replace only with part number

 

specified.

KV-PF21M70/TF21M61/TF21M90/TF21P11

RM-952

REF. NO. PART NO.

DESCRIPTION

REMARK

 

 

 

 

 

 

 

 

(KV-PF21M70)

 

 

 

 

1

X-4036-748-1

BEZNET ASSY

3, 28, 33

24-070-291-01 BUTTON, POWER

34-070-290-01 BUTTON, MULTI

41-505-740-11 SPEAKER (5X9CM)

54-054-981-01 SCREW, STEP TAPPING

64-365-808-01 SCREW (5), TAPPING

29

22

 

5

 

 

30

 

 

25

 

31

 

 

8

 

 

 

4

 

 

 

 

 

23

 

 

 

 

 

 

 

 

6

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19

12

 

 

 

 

 

 

 

 

 

 

 

 

 

32

 

 

13

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

 

10

12

 

20

 

3

 

 

9

 

 

 

 

 

 

 

 

 

21

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

26

 

 

27

16

24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

 

 

33

 

 

 

 

18

 

 

 

 

 

 

 

 

 

 

 

 

14

2

 

28

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

1

 

 

 

 

 

 

 

7

4-046-600-11 SPACER, DY

8* 3-704-372-11 HOLDER, HV CABLE

9! 8-738-809-05 PICTURE TUBE (A51LPT70X)

108-451-505-11 DEFLECTION YOKE (Y21RSA-S)

11* A-1331-884-A C3 BOARD, MOUNTED

124-369-318-61 SPRING, TENSION

13! 1-416-946-11 COIL, DEMAGNETIC

14

* 4-067-189-01

PWB(L), GUIDE

15

* 4-067-187-01

PWB(R), GUIDE

168-598-449-01 TUNER, FSS BTF-LG433

17! 1-453-293-11 TRANSFORMER ASSY, FLYBACK (NX-1748//M3A4)

18* A-1298-955-A A BOARD, COMPLETE

194-057-714-01 PIECE ASSY, TLH CORRECTION

204-022-115-00 HOLDER, AC CORD

21! 1-769-609-21 CORD, POWER (WITH CONNECTOR)

221-452-032-00 MAGNET,DISC

234-051-736-21 PIECE A(90), CONV. CORRECT

244-067-167-21 BRACKET,TERMINAL

251-452-094-00 CIRCULAR DISC MAGNET B

264-069-651-01 BLOTTING SHEET

27* A-1241-355-A F BOARD, MOUNTED

28X-4036-750-1 DOOR ASSY, CONTROL

29

! 4-070-300-01

COVER, REAR

30

4-064-883-11

HOLDER, DGC

31* 4-379-189-12 CUSHION, SPEAKER

324-069-652-01 CUSHION (HS BAND)

33

* 4-070-292-01 BAR, OPTICAL

– 93 –

– 94 –

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Contents KV-TF21M61 KV-PF21M70 KV-TF21M90 KV-TF21P11 BG-3SCHASSISKV-PF21M70/TF21M61/TF21M90/TF21P11 SpecificationsCircuit Adjustments Table of ContentsDisassembly SET-UP AdjustmentsDiagnostic Test Indicators Self Diagnostic FunctionStopping the STANDBY/TIMER Flash Display of STANDBY/TIMER Light Flash CountHandling of SELF-DIAGNOSTIC Screen Display SELF-DIAGNOSTIC Screen Display+BÊovercurrentÊ»OCP¼ SELF-DIAGNOSTIC CircuitConnect the antenna Getting StartedInsert the batteries into the remote Connecting optional componentsPreset the channels automatically Connecting video equipment using the ò Monitor output jacksPresetting channels Presetting channels automaticallySecuring the TV Skipping program numbers Presetting channels manuallyWatching the TV Additional tasksChanging the on-screen display language Selecting the picture and sound modes Setting the Wake Up timerSetting the Sleep timer Customizing the picture and soundBlocking the channels Adjusting the picture and sound settingsIndicator flashes Self-diagnosis function TroubleshootingCount the number of times the u indicator flashes Press U main power to turn off your TVTroubleshooting Remote Control Identifying parts and controlsFront panel KV-TF21M61/TF21M90 PF21M70/TF21M61/TF21M90/TF21P11 RM-952 VHF LOW Auto I D/K M PIC Rotation Press U to turn on the TV. When the TV isRepeatedly until you get Appears Press + or to select Desired surround sound Selecting the surround modePress Select repeatedly Until SurroundPress A/B repeatedly until you receive the sound you want Selecting a stereo or bilingual programAdditional Teletext tasks Using FastextViewing Teletext Displaying TeletextAdditional Self-diagnosis functionTroubleshooting Shortcuts Check the antenna directionCheck connection on the AC socket Press ü + to increase the volume level Select button 2headphone jack Front panel KV-PF21M70/TF21M61/TF21M90/TF21P11Jump Sound Progr KV-TF21P11 Your Securing the TV Appears Press + or Press Progr +/- or Number buttons untilDesired program number appears Language / English Your New Picture PF21M70/TF21M61/TF21M90/TF21P11 RM-952 KV-PF21M70/TF21M61/TF21M90/TF21P11 Press U main power to turn off your TV Indicator flashesPF21M70/TF21M61/TF21M90/TF21P11 RM-952 Sound Progr Mode Rear Cover Removal Chassis Assy RemovalBracket Removal KV-TF21M61/TF21M90 Service Position Replacement of PartsTerminal Bracket Removal Picture Tube Removal Degauss Coil Removal∙ HOW to Handle AN ANODE-CAP ∙ Removal of ANODE-CAP ∙ Removing ProceduresBeam Landing Section SET-UP AdjustmentsHorizontal and Vertical Static Convergence ConvergenceYCH TLV G2 Screen and White Balance Adjustments Focus AdjustmentRM-952 Adjustments with CommanderAdjustment Method Adjustment Item Table INF INS TXT OPM OPB KV-PF21M70/TF21M61/TF21M90/TF21P11 Board Adjustment After IC003 Memory Replacement Picture Quality Adjustments SUB Color AdjustmentSUB HUE Adjustment Bell Filter AdjustmentItem Number 00 0B Picture Distortion AdjustmentSTV5112 TU101 BTF-WG441IIC201 TA8248KSecam Schematic Diagrams and Printed Wiring BoardsBoard IC001 CXP86449-623S DTC114EK SemiconductorsREF. NO. Part no Description Beznet Assy19 4-057-714-01 Piece ASSY, TLH Correction BUTTON, Multi BUTTON, PowerREF. NO. Part no Description Remark Beznet Assy KV-TF21P11HOLDER, FBT Description RemarkElect HOLDER, LEDMylar Elect 1MFCarbon CeramicPLUG, Connector 3P Diode PIN, Connector 4PPLUG, Connector 3P PLUG, Connector 6P100 101 102 Metal ChipMetal 103 VIBRATOR, Ceramic 104Tuner TUNER, FSS BTF-LG433 CrystalOnly 105106 Diode RD10SB 107108 Photo Coupler ON3171-R IC LinkTransistor 2SC2712-YG 109 110 111 Carbon Variable Resistor 112SOCKET, CRT Coil Transistor 2SC2611113 C5 Except KV-PF21M70114 115 116

KV-PF21M70, KV-TF21P11, KV-TF21M61 specifications

The Sony KV-TF21M61, KV-TF21P11, and KV-PF21M70 are iconic television models that hold a significant place in the history of consumer electronics. These CRT (cathode-ray tube) televisions were introduced during a time when home entertainment was evolving, showcasing Sony's dedication to delivering high-quality viewing experiences.

The KV-TF21M61 is known for its compact design and impressive image quality, featuring a 21-inch screen size that was perfect for small to medium-sized rooms. Equipped with Sony's advanced Trinitron technology, it delivers vibrant colors and sharp images, making it a favorite among viewers who appreciate clarity and detail. The television features a built-in tuner, allowing users to easily access various TV channels without the need for an external set-top box. The design includes multiple connectivity options, including standard composite inputs, offering versatility for connecting gaming consoles and DVD players.

Similarly, the KV-TF21P11 model carries forward Sony's commitment to exceptional picture quality. With anti-glare screens and enhanced viewing angles, this model ensures that viewers enjoy clear images from different positions in the room. Its user-friendly interface allows easy navigation through channel selections and picture adjustments. The model also includes stereo speakers, providing a richer audio experience that complements the stunning visuals.

On the other hand, the KV-PF21M70 is seen as an evolution of these models, featuring a larger display while retaining the core technological advancements of its predecessors. This unit incorporates Sony's Picture-in-Picture (PiP) feature, allowing users to watch two channels simultaneously or view external input while keeping an eye on live TV. This functionality enhances versatility and user engagement, making it a practical choice for avid viewers who don’t want to miss out on their favorite programs.

All three models are equipped with various sound enhancement features, including bass and treble controls, ensuring users can tailor their audio experience according to their preferences. The robust build quality and reliability typical of Sony products ensure that these televisions remain cherished items even as technology progresses and newer formats emerge.

Overall, the KV-TF21M61, KV-TF21P11, and KV-PF21M70 are more than just old CRT televisions; they represent a significant era in television technology, characterized by brilliant visuals, sound quality, and functional designs that laid the groundwork for modern home entertainment systems. These models remain a testament to Sony's pioneering efforts in the realm of consumer electronics.
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