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Hitachi P50S601/DW3F, Руководство по обслуживанию

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3.2.2 Power Supply Diagram

ADM ADM ADM ADM ADM ADM ADM ADM

ADM ADM ADM ADM ADM ADM ADM

ABUS-B B.

ABUS-C B.

ABUS-B B.

ABUS-C B.

X-SUS

EVEN SW

X-SCAN

EVEN SW

X-SUS

ODD SW

X-SCAN

ODD SW

POS

RESET

XSUS B.

S

DR-

U B.

S

DR-

D B.

Y-SUS

EVEN SW

Y-SCAN

EVEN SW

Y-SUS

ODD SW

Y-SCAN

ODD SW

POS/NEG

RESET SW

YSUS B.

MPU

Vcc

PFC

LOGIC B.

Vcego
Vsago

CN63/CN68

CN61

CN64

CN07

CN06

CN06

CN06

CN23

CN32

CN34

CN35

CN22

DC/DC

CONVERTER

Vs

89v

Va

65v

Vcc

5v

Vs 89v
Va 65v
Vcc 5v

DC/DC

CONVERTER

Vw

190v

Vey

16v

Vy

18v

Vex

16v

Vxx
16v

CN07

CN27

CN26

CN06

Va 65v
Vcc 5v

Va 65v
Vcc 5v

Va

Vs

CN08

Vcc 5v

D/A

Vrs,Vr

Vwgo

RESET

IC

YRST

XRST

Vcego

Vsago

Vra

Vsago

Vrs

AC100-240v

PSU B.

Vs 89v
Va 65v
Vcc 5v

34

TROUBLESHOOTING THE 50AF1 PANEL

Содержание P50S601/DW3F

Страница 1: ...EMATIC DIAGRAMS 13 27 PARTS LIST 28 PANEL PWBs 29 PANEL CONNECTORS PART NUMBERS 30 REMOTE CONTROL HOW TO ENTER SERVICE MENU DW 1 2 AND 3 31 IN DEPTH 55 INCH PANEL 50AF1 TROUBLESHOOTING FLOW CHARTS 32 REPLACING THE POWER SUPPLY INFORMATION and ADJUSTMENTS 48 Components having special safety characteristics are identified by a on the schematics and on the parts list in this Service Data and its supp...

Страница 2: ... X 2 P50S601 X X X 3 P50V701 X X X STRUCTURAL DIMENSIONS No Model name WIDTH HEIGHT DEPTH WEIGHT mm mm mm kg Note 1 P50X901 1250 885 817 423 134 50 9 44 8 Without table top stand 2 P50S601 1241 4 884 820 2 422 7 129 49 8 43 7 3 P50V701 1241 4 884 820 2 422 7 129 49 9 43 8 EXTERNAL TERMINALS AND JACKS Model Rear name A V S COMP HDMI M A Subwoofer ANT OPT DV IN POD IN IN IN OUT OUT OUT IN OUT IEEE 1...

Страница 3: ...ent X 12 Color Management Adjustment X 13 7 Mode Aspect Ratio Interchangeable X X X 14 EPG G GUIDE Function X X 15 SD card Photo Viewer X X 16 Audio Output 10W x2 10W x2 10W x2 17 Swivel Power Power Power 18 AV NET AV NET Learning X X 19 IR Pass Through X X 20 OSD Design Direc B C 21 Energy Star POWER CONSUMPTION MODEL INDICATED VALUE PST W CHASSIS NAME Max Rating Max Rating Average Rating Without...

Страница 4: ...ters R G B DRIVE B W are all set as FF 4 After receiving the PC signal reduce the value of two or only one of the RGB adjustment parameters step down two or one among adjustment R G B DRIVE B W and adjust the value shown below At least one of the data should be FF Remarks 1 Color temperature should be adjusted under the condition in which the screen is the brightest thus the initial value for adju...

Страница 5: ...C Card I F HDMI I F POD PWB POD Card I F DC DC POD Vcc PLD Oberon FAN FAN Control PWB Key SW A V Pin Jack Filter PWB Main Power SW Fuse Power Supply Unit AC Inlet FC8 PWB DC DC Conv FC8 DDR2 Main Digital PWB Sub Micro Audio DSP Seine2 A chip Seine2 D chip VCXO PLL Audio PWM PLD Nereid DC DC Conv Audio ADC DDR2 Digital Audio Amplifier Audio DAC HDMI Demodulator UEI Terminal PWB IR Blaster Driver OP...

Страница 6: ...eg 3 3V Reg Seine2 A 5V Reg AGC OOB 5V Reg 30V Reg 5V Reg Tuner 1 0V DC DC 1 8V Reg Demodulator 3 3V Reg 1 05V DC DC FC8 1 8V DC DC FC8 DDR2 FC8 PWB 1 05V Reg 3 3V Reg LVDS SW 1 8V Reg Vari Reg POD Vpp 3 3V DC DC POD Vcc POD PWB 2 5V Reg 1 2V Reg 3 3V Reg Oberon2 9V Reg Buffer 3 3V Reg Key ROM Cable Equalizer 3 3V Reg 5V Reg Bus SW 1 8V DC DC Seine2 D 2 5V Reg 1 3V Reg 1 3V DC DC Seine2 D DDR2 9V ...

Страница 7: ... Only High momentarily when AC removed SBY 5V PPM1 CN63 PSU Pin 1 2 3 Pin 7 5 6V 10V 12V 16V Pins Pin 9 AC IN Both are actually 10V 16V PPM2 CNPPS POWER SUPPLY Delay IG06 LAMPCNT Not for Plasma DC DC MP2361 IG03 DC DC MP2361 IG01 DC DC IG02 TPS54310 D 1 8V D 1 3V D 3 3V RESET I104 I107 SYSRST DDR2 SDRAM 512Mbit X 4 333MHz I301 I304 I106 CY2305C PCI EXTB POD JTAG PWM PWM to DC IC02 Regulator TK1112...

Страница 8: ...100 VCC 1 1 VCC 101 FS_OUTP FAN_CONT 102 LoCK 2 2 LoCK 103 GND N C 104 GND 3 3 GND 105 PoWERoFF GND 106 4 N C 107 GND N C 108 109 FS_OUTN N C 110 111 GND N C 112 113 GND N C 114 115 FAN_DET GND 116 117 GND N C 118 119 MTV_AFC GND 120 121 SIG_DET N C 122 123 N C GND 124 125 PNLoN N C 126 127 GND GND 128 129 REC_MUTE N C 130 131 GND GND 132 133 N C N C 134 135 N C GND 136 137 GND AVCTXD 138 139 N C ...

Страница 9: ...MLED0 7 7 ALARMLED0 Data2 5 27 Data2 PWRLED0 8 8 PWRLED0 Data2 4 28 Data2 PWRLED1 9 9 PWRLED1 GND 3 29 GND MLEDG_N 10 10 MLEDG_N CEC 2 30 CEC MLEDR_N 11 11 MLEDR_N GND 1 31 GND D 3 3V 80 1 D 3 3V 1 GND GND 2 SBADD13 79 2 SBADD13 3 5 6V 5 6V 4 SBADD12 78 3 SBADD12 5 5 6V 5 6V 6 SBADD11 77 4 SBADD11 7 5 6V 5 6V 8 SBADD10 76 5 SBADD10 9 5 6V 5 6V 10 SBADD9 75 6 SBADD9 11 5 6V 5 6V 12 GND 74 7 PoD_Ari...

Страница 10: ...FINAL WIRING DIAGRAM FOR P50V701 AND P50S601 DW3 9 TABLE OF CONTENTS ...

Страница 11: ...FINAL WIRING DIAGRAM P50X901 DW3 10 TABLE OF CONTENTS ...

Страница 12: ... 2 pcs Remove Screw M3M 3 8 P MJ03598 3 pcs Power Fan Ass y Remove Fan P GS00697 2 pcs Remove Screw M3D 4 10 P MJ03895 2 pcs Remove Fan P GS00696 2 pcs TABLE OF CONTENTS DW3D DW3F 11 PANEL FAN ASS Y DETAIL METAL COVER CUSHION SUPPORT METAL PANEL FAN ASS Y SUPPORT METAL POWER FAN ASS Y POWER FAN ASS Y DETAIL SUPPORT METAL METAL COVER FERRITE CORE ASS Y QUICK DISASSEMBLE GUIDE These two pages show d...

Страница 13: ...50V701 P50X901 ONLY Remove Screw M3E 3 8 P MJ03467 2 pcs Remove Screw M3E 3 8 P MJ03963 2 pcs Remove POD PWB ASS Y P JP55141 Remove Screw M3E 3 8 P MJ03467 2 pcs Remove FC8 PWB ASS Y P JP56845 12 DW3D TABLE OF CONTENTS ...

Страница 14: ...is service manual addendum are 1 Swivel board 2 Filter board 3 Terminal board 4 LED board for P50X901 and for P50V701 5 POD board for P50X901 and for P50V701 Refer to the service manual PA no 0224 for the next additional schematic drawings 1 Control board for P50X901 P50V701 and P50S601 2 SD board for P50X901 P50V701 and P50S601 4 LED board for P50S601 ...

Страница 15: ...arefully the PRODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U SWIVEL 1 of 1 SWIVEL NOTESABOUTTHESCHEMATICS 14 For P50X901 P50V701 and P50S601 ...

Страница 16: ...arefully the PRODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U FILTER 1 of 1 FILTER NOTESABOUTTHESCHEMATICS 15 For P50X901 P50V701 and P50S601 ...

Страница 17: ...ead carefully the PRODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U TERMINAL 1 of 5 TERMINAL NOTESABOUTTHESCHEMATICS 16 For P50S601 only ...

Страница 18: ...ead carefully the PRODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U TERMINAL 2 of 5 TERMINAL NOTESABOUTTHESCHEMATICS 17 For P50S601 only ...

Страница 19: ...ead carefully the PRODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U TERMINAL 3 of 5 TERMINAL NOTESABOUTTHESCHEMATICS 18 For P50S601 only ...

Страница 20: ...ead carefully the PRODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U TERMINAL 4 of 5 TERMINAL NOTESABOUTTHESCHEMATICS 19 For P50S601 only ...

Страница 21: ...ead carefully the PRODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U TERMINAL 5 of 5 TERMINAL NOTESABOUTTHESCHEMATICS 20 For P50S601 only ...

Страница 22: ...refully the PRODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U TERMINAL 1 of 5 TERMINAL NOTESABOUTTHESCHEMATICS 21 For P50X901 and P50V701 only ...

Страница 23: ...refully the PRODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U TERMINAL 2 of 5 TERMINAL NOTESABOUTTHESCHEMATICS 22 For P50X901 and P50V701 only ...

Страница 24: ...refully the PRODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U TERMINAL 3 of 5 TERMINAL NOTESABOUTTHESCHEMATICS 23 For P50X901 and P50V701 only ...

Страница 25: ...refully the PRODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U TERMINAL 4 of 5 TERMINAL NOTESABOUTTHESCHEMATICS 24 For P50X901 and P50V701 only ...

Страница 26: ...refully the PRODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U TERMINAL 5 of 5 TERMINAL NOTESABOUTTHESCHEMATICS 25 For P50X901 and P50V701 only ...

Страница 27: ...RODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U LED 1 of 1 LED NOTESABOUTTHESCHEMATICS 26 For P50X901 and P50V701 only Refer to PA no 0224 for the P50S601 ...

Страница 28: ...ad carefully the PRODUCT SAFETY NOTE of this Service Manual Don t degrade the safety of the receiver through improper servicing Since this is a basic circuit diagram the value of the parts is subject to be altered for improvement 1 2 3 4 5 6 A B C D E BASIC CIRCUIT DIAGRAM DW3U POD 1 of 1 POD NOTESABOUTTHESCHEMATICS 27 For P50X901 and P50V701 only ...

Страница 29: ...02202 POW MPF7726 PC07071 DW3 POW BTN 50 SHAFT JP55141 DW3 POD PWB MF02414 GASKET 10 2 40 J1G PH41781 DW3 P50U CONTROL DOOR PH38111 DW2 PC CARD HOLDER NA91491 DW2 50 FAN COVER PH43353 DW3 50TP2 DECO BEZEL PH38121 DW2 CARD COVER NA91961 DW2 50 KEY SUPPORT PH43572 DW3_50US_SV_DOOR_SHEET PH40153 DW2 FR CONT KEY US NA93762 DW3 50XR MAIN FRAME PH43771 DW3 50 SV SP SHEET L PH41212 DW3 CONT PLT 50U 501 N...

Страница 30: ...PF38R XBD54621 XBUS D PWB FPF41R XSS56421 X SUS PWB FPF38R XBU54611 XBUS U PWB FPF41R ABC56081 ABUS C PWB FPF41R ABA56061 ABUS A PWB FPF38R SDR54592 SDR U PWB FPF41R YSS56431 Y SUS PWB FPF38R SDR54602 SDR L PWB PART NUMBERS OF PANEL BOARDS PANEL p n DD00941 FPF41R LGC54681 ...

Страница 31: ...BL27313 Signal cable FPF41R CBL02383 Signal cable FPF41R CBL02385 Power cable FPF41R CBL27312 Signal cable FPF41R CBL02386 Power cable FPF41R CBL27311 Signal cable FPF41R CBL02382 Signal cable FPF41R CBL02381 Power cable FPF41R CBL27301 PART NUMBER OF PANEL CONNECTORS TABLE OF CONTENTS ...

Страница 32: ...1 DW2 DW3 T models DW3 H models MENU MENU MENU 8 SELECT Service Adj Mode I2C Adjust MENU MENU MENU 9 SELECT Panel Test Mode see below Service Modes available to the technician via remote only DW1 DW2 DW33 ...

Страница 33: ...CN61 CN01 CN02 CN03 CN04 CN05 CN06 CN07 CN01 CN02 CN03 CN04 CN05 CN08 CN06 CN07 CN07 CN01 CN02 CN03 CN04 CN05 CN06 CN06 CN05 CN01 CN02 CN03 CN04 CN31 CN32 CN35 CN34 CN831 CN832 CN833 CN821 CN822 CN823 CN06 CN04 CN03 CN02 CN05 ABUS A ABUS C ABUS C ABUS B XSUS YSUS LOGIC XBUS U XBUS D SDR U SDR D TROUBLESHOOTING THE 50AF1 PANEL FOR THE FOLLOWING MODELS P50S601 P50V701 P50X901 32 ...

Страница 34: ... SUS EVEN SW Y SCAN EVEN SW Y SUS ODD SW Y SCAN ODD SW POS NEG RESET SW YSUS B LVDS DATA CONVERTER Gamma Gain Error def Dither Memory Controller Sub Field Processor SCAN CONTROLLER MPU TIMMING ROM EEPROM D A Conv Vsync cont Serial comm Failure Det APC cont ANALOG SW PSU B LOGIC B Vcego Vsago Vrs Vra I2 C SIGNAL INPUT CN02 CN03 CN04 CN05 CN06 CN07 CN01 CN08 CN05 CN05 CN05 CN05 CN21 CN31 CN34 CN35 C...

Страница 35: ... SW Y SCAN ODD SW POS NEG RESET SW YSUS B MPU Vcc PFC LOGIC B Vcego Vsago CN63 CN68 CN61 CN64 CN07 CN06 CN06 CN06 CN23 CN32 CN34 CN35 CN22 DC DC CONVERTER Vs 89v Va 65v Vcc 5v Vs 89v Va 65v Vcc 5v DC DC CONVERTER Vw 190v Vey 16v Vy 18v Vex 16v Vxx 16v CN07 CN27 CN26 CN06 Va 65v Vcc 5v Va 65v Vcc 5v Va Vs CN08 Vcc 5v D A Vrs Vr Vwgo RESET IC YRST XRST Vcego Vsago Vra Vsago Vrs AC100 240v PSU B Vs 8...

Страница 36: ...tain pulse control External communication control Flash memory firmware 6 EEPROM Control parameter memory The accumulation energizing time Every hour Abnormal status memory 16 careers Function of X SUS Board 1 DC DC power supply block Va 63V Vx 30V Vq 55V Vcc 5V Ve 17V XFve 18V floating 2 X switching block Switch circuit for address period Switch circuit for reset period 3 Current detector block I...

Страница 37: ...Vertical line from middle of Screen Vertical line of Different Color Vertical Line Vertical Bar Horizontal Line Horizontal Bar Image sticking or Image retentions Twinkle Flicker Luminance is abnormal Crominance is abnormal Sync is disturbed Picture is Distorted PANEL Panel Failure Some steps of gradation are skipped Abnormal Sound Control of external communication is abnormal It is unable to adjus...

Страница 38: ...as abnormality STANDBY power supply MPU power supply system has short circuit Y Switching circuit Power Supply has a short circuit X SUS board CN23 3 4 pins or CN23 8 6 pins or CN22 10 13 pins 1 Turn on AC Power X SUS Y SUS X SUS to PSU Logic PWB defective PSU board is defective X SUS board is defective N 37 Main Power is turned Off Pin 1 CN63 PSU board STBY 5V exists Pin 1 CN63 are shorted PANEL ...

Страница 39: ...2 11 10 9 8 7 6 YSUS XSUS Vcc NC Vx Vs Vs NC GND Remove XBUS U XBUS D Y On X BUS board CN63 1 9 shorted 1 SDR is defective On CN801 on SDRU or CN811 on SDRD check for short circuit in following pins 2 6 20 24 28 30 46 50 On X BUS board CN63 1 9 shorted Remove the six XFPCs Disconnect CN61 CN62 CN63 CN64 CN65 and CN66 On X BUS board CN63 1 9 are shorted N XBUS board is defective Panel chassis is de...

Страница 40: ...re shorted ADM is defective Panel is defective ABUSC U board CN06 1 3 pins or CN06 3 5 pins shorted Remove ADM from the following four connectors on ABUSC U CN02 CN03 CN04 and CN05 ABUSC U board CN06 1 3 pins or CN06 3 5 pins shorted ABUSC D board CN06 1 3 pins or CN06 3 5 pins shorted ABUSC D board CN06 1 3 pins or CN06 3 5 pins shorted Remove ADM from the following four connectors CN02 CN03 CN04...

Страница 41: ...t CN 06 ABUSB Turn on Power N Y 4 Turn off AC power End of analysis N On PSU board Va 65V exists Y Turn off AC power And remove ADMs from CN01 CN02 CN03 and CN04 After that turn on PDP N Y ABUSB board is defective Turn off AC power Connect CN 06 ABUSB Turn on Power Turn Off AC power and disconnect YFPC from CN812 CN822 CN823 CN831 CN832 CN833 and Turn on AC power YFPC or Panel is defective Panel D...

Страница 42: ... from following connectors CN02 CN03 CN04 ABUSA N Y ABUSA board is defective Turn off AC power Connect CNL2 ABUSL No Recurrence On PSU board Va 65V exists Turn off AC power And remove ADMs from following connectors CN01 CN02 CN03 CN04 On PSU board Va 65V exists ADM is defective Panel is defective 41 TROUBLESHOOTING THE 50AF1 PANEL Afterwards turn on Power Vsago Panel is defective Turn on Power Vsa...

Страница 43: ...USC Y N Heat melted junction is defective Tap lightly heat seal portion on ADM flexible cable Any changes Turn off AC power Vertical line Vertical bar ADM is defective Panel is defective ADM flexible cable has abnormal appearance Turn on PDP Signal cable is defective One vertical line Analysis is over a b c d e f g h i j k l m n o 42 TROUBLESHOOTING THE 50AF1 PANEL ADM Connector with COF attached ...

Страница 44: ...GIC or CN05 ABUSB 3 Vertical bar appears like Different Color Of Vertical LOGIC ABUSC U board or Signal cable is defective Or loose contact of CN04 LOGIC or CN05 ABUSC a b c d e f g h i j k l m n o Vertical bar appears like a b c d e f g h i j k l m n o Y N a b c d e f g h i j k l m n o Y N 2 43 TROUBLESHOOTING THE 50AF1 PANEL following figure following figure Vertical bar appears like following f...

Страница 45: ... off the main power Replace LOGIC PWB Turn on PDP LOGIC PWB defective ADM is defective Panel is defective 3 The vertical lines are at the area of a e e or g Turn off the main power Replace ABUSC D board Turn on PDP ABUSC D board is defective N Y N Y 4 5 Normal Turn off the main power Replace ABUSC D board Turn on PDP ABUSC U board is defective N Y N Y 6 N Y N Y The vertical lines are at the area o...

Страница 46: ... Turn on PDP Continue Turn off the main power Replace signal cables LOGIC ABUSA Turn off the main power Replace LOGIC PWB ABUSB board is defective LOGIC PWB defective Signal cable is defective 4 5 6 The vertical lines are at the area of i k m or o N Y N Y ABUSB board is defective ADM is defective Panel is defective N Y N Y N Y N Y ADM is defective Panel is defective Panel is defective 45 TROUBLESH...

Страница 47: ...place X SUS board Turn on PDP N Normal Panel is defective Y End of analysis Horizontal bar Turn off the main power Replace X SUS board Replace Y SUS board Turn on the PDP X SUS board is defective Y SUS board is defective Turn off the main power N Y 46 TROUBLESHOOTING THE 50AF1 PANEL ...

Страница 48: ...hite 1 Minute before Adjustment The Logic PWB will make the appropriate Vs Va adjustments shortly after power on Center the Pot Center the Pot VR380 VR580 VR251 VR151 DO NOT TOUCH VR580 Vs CNPPS CN64 CN99 CN63 CN68 CN61 HA02202 VR380 Va VR151 should be adjusted to the point when CNPPS connector Pin 1 2 or 3 voltage is 5 65 V 0 25V If the pots VR251 or VR151 are accidentally moved please read below...

Страница 49: ......

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