Sony Bravia KDL-55BX520 Service Manual Download

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KDL-55BX520

SECTION 1: DIAGRAMS

1-1. CIRCUIT BOARDS LOCATION

1-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS INFORMATION

Voltages are DC with respect to ground unless otherwise noted.
Voltage variations may be noted due to normal production

tolerances.
All voltages are in V.
S : Measurement impossibility.

: B+line.

: B-line. (Actual measured value may be different).

: signal path. (RF)

Circled numbers are waveform references.

The components identified by shading and

symbol are critical for safety. Replace

only with part number specified.

The symbol

indicates a fast operating fuse and is displayed on the component

side of the board. Replace only with fuse of the same rating as marked.

Les composants identifies per un trame et une marque

sont critiques pour la

securite. Ne les remplacer que par une piece portant le numero specifie.

Le symbole

indique une fusible a action rapide. Doit etre remplace par une

fusible de meme yaleur, comme maque.

NOTE: The components identified by a red outline and a mark contain confidential

information. Specific instructions must be adhered to whenever these components

are repaired and/or replaced.

See Appendix A: Encryption Key Components in the back of this manual.

All capacitors are in µF unless otherwise noted. pF : µµF 50WV or

less are not indicated except for electrolytics and tantalums.
All electrolytics are in 50V unless otherwise specified.
All resistors are in ohms. k

Ω

=1000

Ω

, M

Ω

=1000k

Ω

Indication of resistance, which does not have one for rating

electrical power, is as follows:

Pitch : 5mm

Rating

electrical

power

W in resistance,

W and

W in chip resistance.

: nonflammable resistor

: fusible resistor

: internal component

: panel designation and adjustment for repair

: earth ground
: earth-chassis

All variable and adjustable resistors have characteristic curve B,

unless otherwise noted.
Readings are taken with a color-bar signal input.
Readings are taken with a 10M

Ω

digital multimeter.

SWITCH

UNIT

TCON

FRC

G17

FIGURE 1-1. KDL-55BX520

Summary of Contents for Bravia KDL-55BX520

Page 1: ... MANUAL ISSUE DATE 8 2011 REVISION DATE SUBJECT 8 12 2011 Original Manual Release Date 11 7 2011 Added Accessories and Packing to Electrical Parts List Replaced Page 35 12 21 2011 Added Mexico model Reissue entire manual 1 18 2012 Added Warnings and Caution information Updated Safety Related Warning information Updated Safety Check Out information Reissue entire manual CONFIDENTIAL ELECTRICAL SERV...

Page 2: ... 15 16 A Board Schematic Diagram 6 of 15 17 A Board Schematic Diagram 7 of 15 18 A Board Schematic Diagram 8 of 15 19 A Board Schematic Diagram 9 of 15 20 A Board Schematic Diagram 10 of 15 21 A Board Schematic Diagram 11 of 15 22 A Board Schematic Diagram 12 of 15 23 A Board Schematic Diagram 13 of 15 24 A Board Schematic Diagram 14 of 15 25 A Board Schematic Diagram 15 of 15 26 G17 Board Schemat...

Page 3: ...TENTION Ces instructions de service sont à l usage du personnel de service qualifié seulement Pour prévenir le risque de choc électrique ne pas faire l entretien autre que celui contenu dans le Mode d emploi à moins que vous soyez qualifié faire ainsi ALERTE Afin d eviter tout risque d electrocution provenant d un chássis sous tension un transformateur d isolement doit etre utilisé lors de tout dé...

Page 4: ...étroéclairage ou le circuit inverseur Un voltage élevé se produit dans le circuit inverseur à 650Vrms 7 Nettoyez toujours le panneau ACL avec un chiffon doux 8 Faites attention lors de la manipulation des fils ou connecteurs du circuit inverseur Le fait d endommager les films peut causer un court circuit 9 Protégez le panneau des décharges électrostatiques afin d éviter d endommager le circuit éle...

Page 5: ...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 multi...

Page 6: ...lder is available under the following part numbers Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees centigrade This requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics r e b m u n t r a P r e t e m a i D s k r a m e R 9 1 5 0 0 0 4 6 7 m m 3 0 g K 5 2 0 0 2 5 0 0 ...

Page 7: ...lace par une fusible de meme yaleur comme maque NOTE The components identified by a red outline and a mark contain confidential information Specific instructions must be adhered to whenever these components are repaired and or replaced See Appendix A Encryption Key Components in the back of this manual All capacitors are in µF unless otherwise noted pF µµF 50WV or less are not indicated except for...

Page 8: ...hode Common Cathode Cathode Common Common Common Common Cathode Anode Base Emitter Collector Base Emitter Collector Drain Gate Gate Drain Device Printed symbol Terminal name Circuit Terminal name of semiconductors in silk screen printed circuit Anode Anode Anode Cathode Anode Anode Cathode Transistor FET Transistor FET Emitter Collector Base Transistor Source Gate Drain Cathode Anode Anode Cathode...

Page 9: ...D15 POWER SUPPLY SWITCH UNIT LED IR RX LCD PANEL A H L R ANALOG AUDIO OUT OPTICAL AUDIO OUT U3 MT5388 A V DECODER A V PROCESS CPU TUNER USB2 0 HDMI 2 24V B AND CTL AC IN INVERTER X2 U8 CLASS D AUDIO AMP G17 HDMI 3 BX421 MODELS ONLY IC4305 TEMP SENSE FRC LVDS LVDS Figure 3 1 OVERALL BLOCK DIAGRAM ...

Page 10: ...10 KDL 55BX520 KDL 55BX520 FRC Panel DDR II 2 Inverter Inverter Figure 3 2 ENGINEERING BLOCK DIAGRAM ...

Page 11: ...11 KDL 55BX520 KDL 55BX520 MB PSU Inverter KEY PAD IR SPEAKER Figure 3 3 CONNECTOR DIAGRAM ...

Page 12: ...R C243 0 01U_25V_K 0402_X7R 1 2 C251 0 01U_10V_K 0402_X7R C251 0 01U_10V_K 0402_X7R 1 2 C22 10U_10V_M 0805_X5R C22 10U_10V_M 0805_X5R 1 2 C27 0 1U_16V_K 0402_X7R C27 0 1U_16V_K 0402_X7R 1 2 C85 0 1U_25V_Y C85 0 1U_25V_Y C418 22U_6 3V C418 22U_6 3V B C E Q11 MMBT3904 B C E Q11 MMBT3904 2 3 1 C2 0 1U_16V_K 0402_X7R C2 0 1U_16V_K 0402_X7R 1 2 R3249 110_F 0402 R3249 110_F 0402 1 2 L2 15UH_2 1A_0 091R ...

Page 13: ...608KF 121T30 C339 10U_10V_M 0805_X5R C339 10U_10V_M 0805_X5R 1 2 R40 0_J 0402 R40 0_J 0402 1 2 J _ 0 9 R 0402 J _ 0 9 R 0402 1 2 C178 0 1U_16V_K 0402_X7R C178 0 1U_16V_K 0402_X7R 1 2 C57 0 1U_16V_K 0402_X7R C57 0 1U_16V_K 0402_X7R 1 2 C55 1U_16V_K 0402_X5R C55 1U_16V_K 0402_X5R 1 2 C341 NC_10U_10V_M 0805_X5R C341 NC_10U_10V_M 0805_X5R 1 2 R3244 1K_F 0402 R3244 1K_F 0402 1 2 C33 0 01U_16V_K 0402_X7...

Page 14: ...3 C1601 FR VCC V V GND PTH1 PTH2 CN18 USB FEMALE CONN_4P FOX_UB11123 C1601 FR 1 2 3 4 5 6 C84 NC_4 7U_10V_Y 0805_Y5V C84 NC_4 7U_10V_Y 0805_Y5V 1 2 RP24 0 0404_4P2R RP24 0 0404_4P2R 1 2 3 4 R57 4 7K_J 0402 R57 4 7K_J 0402 1 2 R78 NC_33_J 0402 R78 NC_33_J 0402 1 2 R79 10K_F 0402 R79 10K_F 0402 1 2 C614 NC_10P_50V_J 0402_NPO C614 NC_10P_50V_J 0402_NPO 1 2 L68 100R 100MHZ_0805 HPB2012ZF 101T40 L68 10...

Page 15: ...02_X5R 1 2 C89 0 1U_16V_K 0402_X7R C89 0 1U_16V_K 0402_X7R 1 2 U35 FLASH_TSOP 48P_512MBIT NAND512W3A2DN6E U35 FLASH_TSOP 48P_512MBIT NAND512W3A2DN6E NC_1 1 NC_2 2 NC_3 3 NC_4 4 NC_5 5 NC_6 6 RB 7 R 8 E 9 NC_7 10 NC_8 11 VDD_1 12 VSS_1 13 NC_9 14 NC_10 15 CL 16 AL 17 W 18 WP 19 NC_11 20 NC_12 21 NC_13 22 NC_14 23 NC_15 24 NC_29 48 NC_28 47 NC_27 46 NC_26 45 I O7 44 I O6 43 I O5 42 I O4 41 NC_25 40 ...

Page 16: ... VR33 NC_EZAEG2A50AX_VR 1 2 R393 1K_J 0402 R393 1K_J 0402 R387 NC_100K_J 0402 R387 NC_100K_J 0402 R390 NC_47K_J 0402 R390 NC_47K_J 0402 B C E Q20 MMBT3904 B C E Q20 MMBT3904 2 3 1 U3F MT5388JFMG null U3F MT5388JFMG null AVDD12_HDMI R9 HDMI_SDA2 K4 HDMI_SCL2 K5 PWR5V_2 K3 HDMI_CEC J4 HDMI_SDA1 M5 PWR5V_1 M3 HDMI_SCL1 L4 HDMI_SDA0 N4 HDMI_SCL0 N5 PWR5V_0 P3 AVSS33_HDMI_1 J5 AVSS33_HDMI_2 J6 AVDD33_H...

Page 17: ...10VC 2 1 L80 120R 100MHZ_0603 HCB1608KF 121T30 L80 120R 100MHZ_0603 HCB1608KF 121T30 R136 100_J 0402 R136 100_J 0402 R142 68_F 0402 R142 68_F 0402 C148 NC_10U_6 3V_M 0603_X5R C148 NC_10U_6 3V_M 0603_X5R 1 2 R420 0_J 0402 R420 0_J 0402 1 2 D14 MM3Z10VC D14 MM3Z10VC 2 1 D68 MM3Z10VC D68 MM3Z10VC 2 1 RED CN16C RCA JACK_12P CHUNSHENG_RCA 512HK EP 01 RED CN16C RCA JACK_12P CHUNSHENG_RCA 512HK EP 01 3C ...

Page 18: ...M 0805_X5R 1 2 TP135 TP135 1 R151 39K_J 0402 R151 39K_J 0402 1 2 TP136 TP136 1 D32 NC_MM3Z10VC D32 NC_MM3Z10VC 2 1 TP131 TP131 1 R150 39K_J 0402 R150 39K_J 0402 1 2 TP206 TP206 1 U3K MT5388JFMG null U3K MT5388JFMG null CVBS0P AD5 CVBS1P AD4 CVBS0N AE4 CVBS3P AE5 CVBS2P AF3 SC0 AF5 SY0 AF2 SY1 AE3 SC1 AF4 AIN3_R_AADC AC14 AIN3_L_AADC AE14 AIN4_R_AADC AD17 AIN4_L_AADC AF16 AIN5_R_AADC AD16 AIN5_L_AA...

Page 19: ... R5 ADIN0_SRV AF7 AVDD10_DAC AC19 AVDD33_DAC AD18 AVSS33_DAC AC17 AVDD33_VDAC AE18 ADIN1_SRV AC6 TP160 TP160 1 TP207 TP207 1 CAP58 220U_6 3V_M 6 3x5 9 CAP58 220U_6 3V_M 6 3x5 9 1 2 C167 0 1U_16V_K 0402_X7R C167 0 1U_16V_K 0402_X7R 1 2 MR19 1K_J0402 MR19 1K_J0402 1 2 MR14 1K_J0402 MR14 1K_J0402 1 2 TP219 TP219 1 C175 NC_1U_16V_K 0603_X5R C175 NC_1U_16V_K 0603_X5R 1 2 MD5 BAV70 null MD5 BAV70 null 3...

Page 20: ... 1 2 WR10 15K_F 0402 WR10 15K_F 0402 1 2 C3 NC_3300P_50V_M 0603_X7R C3 NC_3300P_50V_M 0603_X7R 1 2 WC17 0 1U_16V_K 0402_X7R WC17 0 1U_16V_K 0402_X7R 1 2 WC14 1U_16V_K 0402_X5R WC14 1U_16V_K 0402_X5R 1 2 WR16 15K_F 0402 WR16 15K_F 0402 1 2 C16 22U_16V_M 1210_X5R C16 22U_16V_M 1210_X5R 1 2 TP23 TP23 1 WC15 1U_16V_K 0402_X5R WC15 1U_16V_K 0402_X5R 1 2 WR28 0_J 0402 WR28 0_J 0402 1 2 WC16 10U_10V_M 08...

Page 21: ...D PAD32 SMDPAD 1 C221 0 1U_50V_K 0603_X7R C221 0 1U_50V_K 0603_X7R 1 2 PAD26 SMDPAD PAD26 SMDPAD 1 PAD7 SMDPAD PAD7 SMDPAD 1 R224 4 7K_J 0402 R224 4 7K_J 0402 1 2 B C E Q39 MMBT3904 null B C E Q39 MMBT3904 null C225 0 1U_50V_K 0603_X7R C225 0 1U_50V_K 0603_X7R 1 2 PAD2 SMDPAD PAD2 SMDPAD 1 PAD31 SMDPAD PAD31 SMDPAD 1 R579 4 7K_J R579 4 7K_J R192 0_J 0402 R192 0_J 0402 1 2 C238 1U_16V_K 0402_X5R C2...

Page 22: ...2 1 2 TP203 TP203 1 RP13 0 0404_4P2R RP13 0 0404_4P2R 1 2 3 4 TP205 TP205 1 R259 NC_10K_J 0402 R259 NC_10K_J 0402 1 2 R805 NC_0_J R805 NC_0_J RP22 0 0404_4P2R RP22 0 0404_4P2R 1 2 3 4 R509 4 7K_F R509 4 7K_F R340 47K_J 0402 R340 47K_J 0402 TP208 TP208 1 L39 NC_TCM1210L 900 2P T000 NC_LC L39 NC_TCM1210L 900 2P T000 NC_LC 1 2 3 4 R504 NC_4 7K_F R504 NC_4 7K_F R510 4 7K_F R510 4 7K_F RP17 0 0404_4P2R...

Page 23: ... 3 3NH_0402 HK10053N3S T L147 3 3NH_0402 HK10053N3S T 1 2 SPR3 NC_SPRING_3 2x1 6 null SPR3 NC_SPRING_3 2x1 6 null 1 1 TP143 TP143 1 R261 100_J 0402 R261 100_J 0402 1 2 U10 78D05AL TN3 R null U10 78D05AL TN3 R null VIN 1 GND 2 VOUT 3 C271 NC_150P_50V_J 0402_NPO C271 NC_150P_50V_J 0402_NPO 1 2 TP144 TP144 1 R506 47_J 11 5x4 5 R506 47_J 11 5x4 5 1 2 C618 NC_0 01U_10V_K 0603_X7R C618 NC_0 01U_10V_K 06...

Page 24: ..._50V_K 0603_X7R 1 2 R7 10K_J 0402 R7 10K_J 0402 1 2 B C E Q13 MMBT3904 B C E Q13 MMBT3904 2 3 1 TP33 TP33 1 C301 NC_0 1U_50V_K 0603_X7R C301 NC_0 1U_50V_K 0603_X7R 1 2 R113 NC_150K_J 0402 R113 NC_150K_J 0402 1 2 D62 NC_MM3Z10VC D62 NC_MM3Z10VC 2 1 R327 0_J 0402 R327 0_J 0402 1 2 R108 NC_10K_J 0402 R108 NC_10K_J 0402 1 2 TP34 TP34 1 C616 100P_16V_J 0603_NPO C616 100P_16V_J 0603_NPO 1 2 R351 10K_J 0...

Page 25: ...9 HEADER_4P FOX_HF5504E 1 2 3 4 R333 4 7K_J 0402 R333 4 7K_J 0402 1 2 R264 10K_J 0402 R264 10K_J 0402 1 2 R324 4 7K_J 0402 R324 4 7K_J 0402 1 2 R267 10K_J 0402 R267 10K_J 0402 1 2 B C E Q16 MMBT3904 B C E Q16 MMBT3904 2 3 1 R298 10K_J 0402 R298 10K_J 0402 1 2 R269 10K_J 0402 R269 10K_J 0402 1 2 D83 RB551V 30 null D83 RB551V 30 null 1 2 R331 4 7K_J 0402 R331 4 7K_J 0402 1 2 B C E Q19 MMBT3904 B C E...

Page 26: ...N15 DVSS_52 P15 DVSS_53 R15 DVSS_54 T15 DVSS_55 U15 DVSS_56 K16 DVSS_57 L16 DVSS_58 M16 DVSS_59 N16 DVSS_60 P16 DVSS_61 T16 DVSS_62 V16 DVSS_63 M17 DVSS_64 K18 DVSS_65 L18 DVSS_66 N18 DVSS_67 H22 FSRC_WR N22 DVSS_68 D23 DVSS_69 H23 DVSS_70 C24 DVSS_71 H24 DVSS_72 B25 DVSS_73 H25 DVSS_74 H26 VCCK_36 M18 DVSS_75 A26 DVSS_76 N26 VCC3IO_6 M22 DVSS_77 AA24 DVSS_78 P24 DVSS_79 P23 DVSS_80 AA23 DVSS_81 N...

Page 27: ... C 1 9 8 M D 5 M D 3 C282 C 2 4 4 C29 T P 2 3 1 Q10 R 2 5 3 R 2 5 2 C 2 4 0 C 2 4 3 R E F D E S Q 3 7 T P 2 8 R 2 0 1 7 D A P 2 D A P C203 C225 C 2 1 5 4 D A P 6 D A P 8 D A P P A D 2 8 P A D 2 7 P A D 3 6 C 1 9 9 C 2 1 2 P A D 3 3 P A D 3 1 0 3 D A P 4 3 D A P 6 2 D A P 5 2 D A P M R 1 9 R 2 2 4 R 1 8 7 M R 2 1 M R 2 0 Q 2 1 M Q 7 M C 3 R 2 5 1 R 2 6 8 T P 1 9 9 T P 1 8 8 T P 2 3 3 T P 2 0 4 T P ...

Page 28: ...L 55BX520 KDL 55BX520 28 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 A B C D E F G H I J K L M N O P G17 BOARD SCHEMATIC DIAGRAM G17 SCHEMATIC DIAGRAM AND PWB NOT AVAILABLE ...

Page 29: ...HZ_0805 L4 120R 100MHZ_0805 C20 1U_25V_K 0603_X5R C20 1U_25V_K 0603_X5R C16 1U_25V_K 0603_X5R C16 1U_25V_K 0603_X5R C11 0 01U_16V_K 0402_X7R C11 0 01U_16V_K 0402_X7R C1 0 01U_10V_K 0402_X7R C1 0 01U_10V_K 0402_X7R 1 2 R5 100K_J 0402 R5 100K_J 0402 C17 0 01U_16V_K 0402_X7R C17 0 01U_16V_K 0402_X7R C108 1U_25V_K 0603_X5R C108 1U_25V_K 0603_X5R L17 120R 100MHZ_0805 L17 120R 100MHZ_0805 C21 NC_10U_10V...

Page 30: ..._J 0402 R11 0_J 0402 R11 0_J 0402 R28 0_J 0402 R28 0_J 0402 C23 0 1U_16V_K 0402_X7R C23 0 1U_16V_K 0402_X7R R17 0_J 0402 R17 0_J 0402 C43 0 1U_16V_K 0402_X7R C43 0 1U_16V_K 0402_X7R U5 FLASH _SOIC 8P_4MB W25X40BVSSIG U5 FLASH _SOIC 8P_4MB W25X40BVSSIG CS 1 DO IO1 2 WP 3 GND 4 DIO IO0 5 CLK 6 HOLD 7 VCC 8 CN3 NC_HEADER_4P FOX_HF5504E CN3 NC_HEADER_4P FOX_HF5504E 1 2 3 4 R23 0_J 0402 R23 0_J 0402 C2...

Page 31: ..._K 0402_X7R C66 0 1U_16V_K 0402_X7R RP8 56R RP8 56R 1 2 3 4 5 6 7 8 C73 NC_0 1U_16V_K 0402_X7R C73 NC_0 1U_16V_K 0402_X7R C81 0 1U_16V_K 0402_X7R C81 0 1U_16V_K 0402_X7R L10 120R 100MHZ_0805 BLM21PG121SN1D L10 120R 100MHZ_0805 BLM21PG121SN1D 1 2 C61 0 01U_16V_K 0402_X7R C61 0 01U_16V_K 0402_X7R C52 0 1U_16V_K 0402_X7R C52 0 1U_16V_K 0402_X7R R43 1K_J 0603 R43 1K_J 0603 C49 0 1U_16V_K 0402_X7R C49 ...

Page 32: ...R441 0_J 0402 1 2 R440 0_J 0402 R440 0_J 0402 1 2 TP62 TP62 1 TP92 TP92 1 TP50 TP50 1 TP17 tpc55b_100 TP17 tpc55b_100 1 TP112 TP112 1 SMDFIX2 SMDFIX1 CN4 FPC CONN_51P P TWO_196182 51041 SMDFIX2 SMDFIX1 CN4 FPC CONN_51P P TWO_196182 51041 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 TP40 TP40 1 ...

Page 33: ...3 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 A B C D E F G H I J K L M N O P POWER REGULATORS PERIPHERAL DRAM LVDS COMPONENT SIDE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J K L M N O P FRC CONDUCTOR SIDE POWER REGULATORS PERIPHERAL DRAM LVDS FRC ...

Page 34: ...26 1 U2 CM3217A3OG null U2 CM3217A3OG null GND 1 SDAT 2 SCLK 3 VDD 4 TP7 tpc26 TP7 tpc26 1 C7 0 1U_25V_K 0603_X7R C7 0 1U_25V_K 0603_X7R 1 2 D4 MM3Z10VC D4 MM3Z10VC 2 1 R12 470_J 0603 R12 470_J 0603 1 2 SMDFIX1 SMDFIX2 CN1 B TO B CONN_10P JWT_A1501WR0 10PS 5E SMDFIX1 SMDFIX2 CN1 B TO B CONN_10P JWT_A1501WR0 10PS 5E 9 8 7 6 5 4 3 2 1 10 11 12 TP1 tpc26 TP1 tpc26 1 D2 MM3Z10VC D2 MM3Z10VC 2 1 C3 1U_...

Page 35: ...KDL 55BX520 35 KDL 55BX520 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A B C D E F G H I J IR LED COMPONENT SIDE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A B C D E F G H IR LED CONDUCTOR SIDE H ...

Page 36: ...nfidential information Specific instructions must be adhered to whenever these components are repaired and or replaced See Appendix A Encryption Key Components in the back of this manual SECTION 2 ELECTRICAL PARTS LIST ACCESSORIES AND PACKING 4 298 457 01 BAG PROTECTION GF55 US ONLY 4 295 020 01 CARTON INDIVIDUAL GEM55 US ONLY 4 298 275 01 CUSHION LOWER GF55 US ONLY 4 298 274 01 CUSHION UPPER GF55...

Page 37: ...taining encryption key components shall be identified with a red outline and a 2 Only repair boards or components listed in the service manual shall be utilized for replacement and or repair 3 Disassembly decryption or reverse engineering component s is strictly prohibited 4 Any board in which the Servicer replaces an encryption key component must be placed back into the set it orignally came from...

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