Sony TRINITRON KV-PG21M70 Service Manual
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Sony TRINITRON KV-PG21M70 Service Manual

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REVISION HISTORY
BG-2T
CHASSIS
MODEL
9-872-260-01
PART NO. :
KV-PG21M70
KV-PG21P40/L
(Pearl Blue)
KV-PG21P40/N
(Champange Gold)
KV-PG21P40
KV-PG21P70
NO
DATE
DESCRIPTION OF REVISION

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Summary of Contents for Sony TRINITRON KV-PG21M70

  • Page 1 REVISION HISTORY BG-2T CHASSIS MODEL 9-872-260-01 PART NO. : KV-PG21M70 KV-PG21P40/L (Pearl Blue) KV-PG21P40/N (Champange Gold) KV-PG21P40 KV-PG21P70 DATE DESCRIPTION OF REVISION...
  • Page 2 SERVICE MANUAL BG-2T CHASSIS MODEL COMMANDER DEST. CHASSIS NO. MODEL COMMANDER DEST. CHASSIS NO. KV-PG21M70 RM-952 SCC-U68A-A KV-PG21P40/L RM-952 Malaysia SCC-U71A-A (Pearl Blue) (Blue) KV-PG21P40/N RM-952 Malaysia SCC-U71B-A (Champange Gold) (Silver) KV-PG21P40 RM-952 Singapore SCC-U66A-A KV-PG21P70 RM-952 SCC-U68B-A ÷ JUMP SOUND Á...
  • Page 3 THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. OR CARBON PAINTED ON THE CRT, AFTER REMOVING THE REPLACE THESE COMPONENTS WITH SONY PARTS ANODE. WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. – 2 –...

  • Page 4: Table Of Contents

    KV-PG21P40/PG21M70/PG21P70 RM-952 TABLE OF CONTENTS Section Title Page Section Title Page SELF DIAGNOSTIC FUNCTION ........4 5. DIAGRAMS 5-1. Block Diagram ............27 1. GENERAL ..............7 5-2. Circuit Boards Location .......... 29 5-3. Schematic Diagram ..........30 2. DISASSEMBLY (1) Schematic Diagram of A Board ......

  • Page 5: Self Diagnostic Function

    KV-PG21P40/PG21M70/PG21P70 RM-952 SELF DIAGNOSTIC FUNCTION The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER lamp will automati- cally begin to flash. The number of times the lamp flashes translates to a probable source of the problem. A definition of the STANDBY/ TIMER lamp flash indicators is listed in the instruction manual for the user’s knowledge and reference.
  • Page 6 KV-PG21P40/PG21M70/PG21P70 RM-952 2. DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT Diagnostic Item Flash Count* 2 times +B overcurrent/overvoltage 2 times Vertical deflection stopped 4 times 4 times * One flash count is not used for self-diagnostic. Lamp ON 0.3 sec. Lamp OFF 3 sec. Lamp OFF 0.3 sec.
  • Page 7 KV-PG21P40/PG21M70/PG21P70 RM-952 5. 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.
  • Page 8 KV-PG21P40/PG21M70/PG21P70 RM-952 WARNING (continued) Getting Started Step 1 Insert the batteries (supplied) into the remote. Pull the power cord out by the plug. Do not pull the power cord itself. Even if your TV is turned off, it is still connected to the AC power source Note (mains) as long as the power cord is plugged in.
  • Page 9 (After 30 minutes) (After 60 minutes) • Count the number of times the 1 (standby) indicator flashes. Press ! The 1 (standby) (main power) to turn off your TV. Contact your nearest Sony service indicator on your TV center. flashes red several...
  • Page 10 KV-PG21P40/PG21M70/PG21P70 RM-952 Presetting channels (continued) Customizing the picture and sound You can customize the picture and sound by selecting the picture and sound To change the TV system setting (KV-PG21M70/PG14M40/TG21M61 only) modes or by adjusting its settings. If the picture or sound is abnormal when receiving programs through the 8 (antenna) Selecting the picture mode terminal Press PIC MODE to select the desired picture mode.
  • Page 11 KV-PG21P40/PG21M70/PG21P70 RM-952 Enjoying stereo or bilingual Viewing Teletext programs KV-TG21M61 only Some TV stations broadcast an information service called Teletext which KV-TG21M61 only allows you to receive various information, such as stock market reports and news. You can enjoy stereo sound or bilingual programs of NICAM and A2 stereo systems by using the A/B button.

  • Page 14: Set-Up Adjustments

    KV-PG21P40/PG21M70/PG21P70 RM-952 SECTION 3 SET-UP ADJUSTMENTS The following adjustments should be made when a complete Perform the adjustments in the following order : realignment is required or a new picture tube is installed. 1. Beam Landing These adjustments should be performed with rated power 2.

  • Page 15: Convergence

    KV-PG21P40/PG21M70/PG21P70 RM-952 3-2. CONVERGENCE • Operation of V. Stat magnet If the V. Stat magnet is moved in the "a" and "b" arrows, the Preparation : red, green and blue dots move as shown below. • Before starting this adjustment, adjust the focus, horizontal size and vertical size.
  • Page 16 KV-PG21P40/PG21M70/PG21P70 RM-952 (2) Dynamic Convergence Adjustment Preparation: Before starting this adjustment, adjust the horizontal static convergence and the vertical static convergence Insert Correction Plate to DY Pocket (Left or Right) YCH Rotate YCH VOL on DY Rotate TLV VOL ON DY XCV Rotate XCV Adj core on DY ON DY: DY pocket...

  • Page 17: Focus Adjustment

    KV-PG21P40/PG21M70/PG21P70 RM-952 3-4. G2 (SCREEN) AND WHITE BALANCE (3) Screen-corner Convergence ADJUSTMENTS G2 (SCREEN) ADJUSTMENT 1) Set the PICTURE to normal. a-d : screen-corner 2) Put to VIDEO input mode without signals. misconvergence 3) Connect R, G and B of the CV board cathode to the oscilloscope.

  • Page 18: Circuit Adjustments

    KV-PG21P40/PG21M70/PG21P70 RM-952 SECTION 4 CIRCUIT ADJUSTMENTS 4-1. ADJUSTMENT WITH COMMANDER 4-2. ADJUSTMENT METHOD Service adjustments to this model can be performed using the Item Number 00 HPS supplied Remote Commander RM-952 This explanation uses H Shift as an example. 1. Select “00 HPS” with the 1 and 4 buttons. a.
  • Page 19 KV-PG21P40/PG21M70/PG21P70 RM-952 Adjustment Item Table Item Adj. Data Initial Function Note for Different Data Device Item Range Data 00–3F 50/60Hz H Position TDA8843/44(8A) 00–3F 50/60Hz H Size 00–3F 50/60Hz Pin Amplitude 00–3F 50/60Hz Corner Pin 00–3F 50/60Hz Tilt 00–3F 50/60Hz V Slope 00–3F 50/60Hz...
  • Page 20 KV-PG21P40/PG21M70/PG21P70 RM-952 Adjustment Item Table Data Initial Item Adj. Note for Different Data Function Device Range Data Item 00-0F Set Teletext RGB Brightness SAA5264(58) 00-03 Twisted Character Set Configuration 00-3F 00 : Positive, 01 : Negative Picture Data at Blanking OFF 00-FF Power ON Delay Other Control...
  • Page 21 KV-PG21P40/PG21M70/PG21P70 RM-952 ITEM INFORMATION No. 1E VP1 Item KV-PG21P40 (Singapura) KV-PG21M70 KV-PG21P70 KV-PG21P40 (Malaysia) KV-PG21P40 (Malaysia) EHT Tracking Mode 1 = on V and E-W, 0 = only on V 0A(7) Enable Vertical Guard 1 = enable, 0 = disable 0A(6) Service Blanking 1 = active, 0 = inactive OB(7)
  • Page 22 KV-PG21P40/PG21M70/PG21P70 RM-952 No. 4E OP1 Item Pic. Rot Auto TV Sys. No Bal. SPC SOUND H. K. Bil Thai Bil. KV-PG21P40 (Singapura) KV-PG21M70 KV-PG21P70 KV-PG21P40 (Malaysia) KV-PG21P40 (Malaysia) Auto TV Sys. 1 = Auto TV System available, 0 = not available No.

  • Page 23: Picture Quality Adjustment

    KV-PG21P40/PG21M70/PG21P70 RM-952 4-3. PICTURE QUALITY ADJUSTMENT 4-4. DEFLECTION ADJUSTMENT NORMAL MODE (50Hz) SUB COLOR ADJUSTMENT Set to Service mode. 1. Select Video. Input PAL color bar. Using the 1 and 4 button, select category GEO 2. Input a PAL color-bar. 3.

  • Page 24: Picture Distortion Adjustment

    KV-PG21P40/PG21M70/PG21P70 RM-952 4-6. PICTURE DISTORTION ADJUSTMENT Item Number 00 – 08 HPS (H POSITION) HSZ (H SIZE) PAP (PIN AMPLITUDE) CPN (CORNER PIN) TLT (TILT) VSL (V SLOPE) VAP (VERTICAL AMPLITUDE) SCO (S CORRECTION) VPS (V SHIFT) – 23 –...
  • Page 25 KV-PG21P40/PG21M70/PG21P70 RM-952 MEMO ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○...

  • Page 26: Diagrams

    KV-PG21P40/PG21M70/PG21P70 KV-PG21P40/PG21M70/PG21P70 RM-952 RM-952 SECTION 5 DIAGRAMS 5-1. BLOCK DIAGRAM POWER SUPPLY, DEFLECTION, CV (RGB AMPLIFER) Q405 J1201 AUDIO & VIDEO PROCESSING, BUFFER VIDEO AUDIO/VIDEO INPUT/OUTPUT MONITOR AND MICROCOMPUTER Q712 Q706 L (MONO) Q407, 406 R DRIVE R AMP VIDEO BUFFER VIDEO IN 1...

  • Page 27: Circuit Boards Location

    KV-PG21P40/PG21M70/PG21P70 KV-PG21P40/PG21M70/PG21P70 RM-952 RM-952 5-3. SCHEMATIC DIAGRAM 5-2. CIRCUIT BOARDS LOCATION Note: • All capacitors are in µF unless otherwise noted. • All electrolytic capacitors are rated at 50V unless otherwise noted. • All resistors are in ohms. kΩ = 1000Ω, MΩ = 1000kΩ •...

  • Page 28: Schematic Diagram Of A Board

    KV-PG21P40/PG21M70/PG21P70 KV-PG21P40/PG21M70/PG21P70 RM-952 RM-952 (1) Schematic Diagram of A Board CN300 CN302 CN200 CN301 TO CV BOARD J200 CN703 JACK TO A3 BOARD D200 C418 C201 R437 Q962 # BUFFER Q203 # DA204K R102 C113 C426 # R438 SWF100 TP300 SPACE SOUND R932 :CHIP...
  • Page 29 KV-PG21P40/PG21M70/PG21P70 KV-PG21P40/PG21M70/PG21P70 RM-952 RM-952 TO PAGE 1/2 R051 IC001 :CHIP CXP85224-079S SYSTEM C025 CONTROLLER L001 R057 C015 C053 R034 0.001 470 10V 6.3V R340 R033 FLR50 :CHIP R071 B:CHIP F:CHIP 0.01 C032 200V F:CHIP :CHIP 0.0015 C007 200V C005 B:CHIP C340 C055 0.001...

  • Page 30: Schematic Diagram Of Cv Board

    KV-PG21P40/PG21M70/PG21P70 RM-952 (2) Schematic Diagram of CV Board CN702 1P :TAB L701 RGB AMPLIFIER MICRO INDUCTOR 200V :EL0607 200V C704 0.022 C701 R703 400V 0.0047 FOCUS 100k 1/2W G1-1 J701 SOCKET R705 CN701 RV702 110M :S-MICRO G1-2 TO A BOARD G1-3 10 9 CN505...
  • Page 31 KV-PG21P40/PG21M70/PG21P70 RM-952 A Board ✼ Mark List KV-PG21P40 (Malaysia) PG21P40 (Singapura) PG21M70 PG21P70 C300 56P :CHIP 56P :CHIP 47P :CHIP 56P :CHIP C302 47P :CHIP C303 68P :CHIP C308 390P :CHIP C309 330P :CHIP C311 470P :CHIP C316 47P :CHIP C370 0 :CHIP CF345...

  • Page 32: Voltage Measurement

    KV-PG21P40/PG21M70/PG21P70 RM-952 5-4. VOLTAGE MEASUREMENT A(1/2) BOARD VOLTAGE LIST Pin No Voltage[v] Pin No Voltage[v] Pin No Voltage[v] IC001 (15.5) [0] (4.9) [0] PH600 IC003 (0) [4.8] 17.5 (4.9) [0] IC301 (4.9) [0] (4.9) [1.0] IC004 (3.0) [1.5] IC101 (0.3) [0] IC203 (3.8) [3.3] 15.6...
  • Page 33 KV-PG21P40/PG21M70/PG21P70 RM-952 A(2/2) BOARD VOLTAGE LIST Pin No Voltage[v] Pin No Voltage[v] Pin No Voltage[v] IC551 Q303 Q409 13.3 (12.1) [0] 13.3 Q304 Q500 133.5 (1.2) [0.3] 13.5 133.5 Q307 (2.9) [1.5] Q800 SWF100 51.6 (2.3) [0.9] Q308 Q801 Q001 Q309 Q802 (6.0) [-94.3]...

  • Page 34: Ref Pin No Voltage[V] Ic001

    KV-PG21P40/PG21M70/PG21P70 RM-952 CV BOARD VOLTAGE LIST Pin No Voltage[v] J701 (135) [142] G1-1 G1-2 (125) [145] G1-3 Q705 (144) [148] Q704 Q706 (128) [132] Q707 Q708 (143) [146] Q709 (127) [131] Q710 Q711 Q712 Q1763 Q1765 Q1767 Q1777 – 37 –...

  • Page 35: Waveforms

    KV-PG21P40/PG21M70/PG21P70 RM-952 5-5. WAVEFORMS A BOARD WAVEFORM NTSC3.58 NTSC3.58 NTSC3.58 5.84Vp-p 3.76Vp-p 4.96Vp-p 720mV 3.84Vp-p 4.08Vp-p NTSC3.58 NTSC3.58 NTSC3.58 1.4Vp-p 520Vp-p 1.2Vp-p 1.2Vp-p 1.64Vp-p 1.2Vp-p NTSC3.58 NTSC3.58 NTSC3.58 1.2Vp-p 640mV 3.32Vp-p 1.12Vp-p 3.16Vp-p 2.56Vp-p NTSC3.58 NTSC3.58 NTSC3.58 3.2Vp-p 2.64Vp-p 3.2Vp-p 2.92Vp-p 416Vp-p 420Vp-p...

  • Page 36: Printed Wiring Boards And Parts Location

    KV-PG21P40/PG21M70/PG21P70 KV-PG21P40/PG21M70/PG21P70 RM-952 RM-952 5-6. PRINTED WIRING BOARDS AND PARTS LOCATION PRINTED WIRING BOARDS NOTE: The circuit indicated at left contains high voltage of over [POWER SUPPLY,DEFLECTION, 1220 Vp-p. Please pay attention when inspecting or re- AUDIO AND VIDEO PROCESSING, pairing it to prevent an electric shock.

  • Page 37: Semiconductors

    KV-PG21P40/PG21M70/PG21P70 KV-PG21P40/PG21M70/PG21P70 RM-952 RM-952 PRINTED WIRING BOARDS 5-7. SEMICONDUCTORS DIODE CATHODE CATHODE [RGB AMPLIFER] ANODE ANODE (GRN) ANODE CATHODE – CV Board – CATHODE (GRN) ANODE ANODE D1NL20U NNCD8.2A-T1 RD5.6ESB2 RD2.2ES-B2 SPB-26MVWF DA204K ELIZ RD5.1SB-T2 RD5.1ESB2 NNCD9.1A-T1 EG01CV1 RU4AM-T3 UDZSTE-179.1B RD15ES-B1 R1763 R721...
  • Page 38 KV-PG21P40/PG21M70/PG21P70 RM-952 MARKING SIDE VIEW TOP VIEW Zig-zag In -line Package Small Outline L-Leaded Pin 6~99 Pin 8~98 STR-F6707A AN5522 MM1319AFBE UPC455892 NJM2903M – 43 –...

  • Page 39: Exploded Views

    KV-PG21P40/PG21M70/PG21P70 RM-952 SECTION 6 EXPLODED VIEWS NOTE: • • Items marked " ∗ " are not stocked since Items with no part number and no The components identified by description are not stocked because they are seldom required for routine shading and mark ! are critical they are seldom required for routine ser vice.

  • Page 40: Electrical Parts List

    KV-PG21P40/PG21M70/PG21P70 RM-952 The components identified by shading and mark ! are critical for safety. SECTION 7 Replace only with part number specified. ELECTRICAL PARTS LIST REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK • Items marked " ∗ " are not stocked since •...
  • Page 41 KV-PG21P40/PG21M70/PG21P70 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK C206 1-126-968-11 ELECT 100UF 20.00% 50V C360 1-130-495-00 MYLAR 0.1UF 5.00%...
  • Page 42 KV-PG21P40/PG21M70/PG21P70 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK C617 1-126-967-11 ELECT 47UF 20.00% 50V CN600 * 1-508-786-00 PIN, CONNECTOR (5MM PITCH) 2P C618 1-126-933-11...

  • Page 43: Ic850

    KV-PG21P40/PG21M70/PG21P70 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK D500 8-719-911-19 1SS119-25 IC520 8-759-603-37 M5216P (KV-PG21P40(SINGAPORE)/PG21P70) D501 8-719-911-19 1SS119-25 IC551...
  • Page 44 KV-PG21P40/PG21M70/PG21P70 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK L400 1-414-855-31 INDUCTOR <RESISTOR> L500 1-408-947-00 INDUCTOR 2.2MH R001 1-216-071-00 RES-CHIP...
  • Page 45 KV-PG21P40/PG21M70/PG21P70 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK R063 1-216-049-11 RES-CHIP 1/10W R306 1-216-039-00 RES-CHIP 1/10W (KV-PG21M70) R307 1-216-033-00...
  • Page 46 KV-PG21P40/PG21M70/PG21P70 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK R369 1-216-123-11 RES-CHIP 1.2M 1/10W R528 1-215-857-71 METAL OXIDE R370 1-216-083-00 RES-CHIP...
  • Page 47 KV-PG21P40/PG21M70/PG21P70 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK R874 1-215-475-00 METAL 180K 1/4W * A-1332-200-A CV BOARD MOUNTED R878 1-216-049-11 RES-CHIP...
  • Page 48 KV-PG21P40/PG21M70/PG21P70 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK Q709 8-729-200-17 2SA1091-O 4-084-862-11 MANUAL INSTRUCTION (KV-PG21M70) Q710 8-729-119-78 2SC2785-HFE 4-084-172-31...
  • Page 49 ! are critical for safety. Replace only with part number specified. REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK Sony Corporation Sony Technology Malaysia Sdn. Bhd. English 9-872-260-01  Visual Products General Area 2001.7 – 54 –...

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