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Sanyo PDP-42H1EV Service Manual

Multimedia plasma monitor
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SERVICE MANUAL
SAFETY INSTRUCTIONS --------------------------------------------------------------------- 2
TECHNICAL SPECIFICATIONS ------------------------------------------------------------- 3
DIMENSIONS AND OPTIONS---------------------------------------------------------------- 4
TERMINALS FOR PC----------------------------------------------------------------------- 5 - 6
MECHANICAL DISASSEMBLIES------------------------------------------------------ 7 - 14
ADJUSTMENT ---------------------------------------------------------------------------- 17 - 19
CIRCUIT BLOCK DIAGRAM----------------------------------------------------------- 20 - 21
POWER SUPPLY LINES --------------------------------------------------------------------- 22
POWER FAIL CIRCUIT ----------------------------------------------------------------- 23 - 24
TROUBLESHOOTING ------------------------------------------------------------------ 25 - 26
CONTROL PORT FUNCTIONS ------------------------------------------------------ 27 - 28
IC BLOCK DIAGRAMS------------------------------------------------------------------ 29 - 36
PIN DESCRIPTION OF DIODE, TRANSISTOR AND IC ----------------------------- 37
PARTS LIST ------------------------------------------------------------------------------- 38 - 60
SCHEMATIC DIAGRAMS---------------------------------------------------------- A-1 - A-12
PRINTED WIRING BOARD DIAGRAMS ------------------------------------- A-13 - A-18
PRODUCT CODE
1 114 019 00
PDP-42H1EV, J3BL
1 114 034 00
PDP-42H1A, J3BJB
Multimedia Plasma Monitor
CONTENTS
FILE NO.
Model No. PDP-42H1EV
(EUROPE)
PDP-42H1A
(U.S.A., ASIA)
ORIGINAL VERSION
Chassis No. PDP-42H1E-00
(PDP-42H1EV)
Chassis No. J3B-42H1A00
(PDP-42H1A)
NOTE: Match the Chassis No. on the
unit's back cover with the Chassis
No. in the Service Manual.
If the Original Version Service
Manual Chassis No. does not
match the unit's, additional
Service Literature is required. You
must refer to "Notices" to the
Original Service Manual prior to
servicing the unit.
Pages
SM5110311-00
REFERENCE NO.

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  • Page 1: Table Of Contents

    FILE NO. SERVICE MANUAL Multimedia Plasma Monitor Model No. PDP-42H1EV (EUROPE) PDP-42H1A (U.S.A., ASIA) ORIGINAL VERSION Chassis No. PDP-42H1E-00 (PDP-42H1EV) Chassis No. J3B-42H1A00 (PDP-42H1A) NOTE: Match the Chassis No. on the unit’s back cover with the Chassis No. in the Service Manual.

  • Page 2: Safety Instructions

    I Safety Instructions SAFETY PRECAUTIONS WARNING : TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. G This Plasma Monitor should be set in the way indicated. If not, it may result in a fire hazard. G Take appropriate space on the top, sides and rear of the Plasma Monitor cabinet for allowing air circulation and cooling the Plasma Monitor.

  • Page 3: Technical Specifications

    EXT. SP OUT AC IN 3PIN POWER SUPPLY AC 220 - 240V 50 Hz (PDP-42H1EV) AC 100 - 120V 50/60 Hz, AC 200 - 240V 50/60 Hz (PDP-42H1A) DIMENSION (W x H x D) 1036 x 641 x 100 mm 41.4"...

  • Page 4: Dimensions And Options

    I Dimensions and Options MEASUREMENT 1036 (41.4) (4.0) 1036 (41.1) (25.2) Size in mm (inch) OPTIONS The products listed below are optionally supplied. When ordering these products, give name and Type No. to sales dealer. Speaker unit KA-SX-42H (R and L) Table top stand KA-TD-H10S Side rack...

  • Page 5: Terminals For Pc

    I Terminals for PC CONFIGURATIONS OF RS232C TERMINALS RS232C TERMINAL Terminal : HDB9-PIN Connect the serial port of computer to this terminal with Serial Cross Cable (not supplied). No Connect Pin Configuration R x D No Connect T x D No Connect DTR (5V) No Connect...

  • Page 6: Terminals For Pc

    Terminals for PC CONFIGURATIONS OF PC TERMINALS PC IN (D-SUB) TERMINAL Terminal : HDB15-PIN Connect the display output terminal of computer to this terminal with VGA Cable (supplied). When connecting the Macintosh computer, the MAC Adapter (not supplied) is required. Pin Configuration Red Input No Connect...
  • Page 7 I Mechanical Disassemblies I Optional Stand Removal 1.Put the PDP Monitor Display with the screen face down on the flat desk. CAUTION : When placing the display with the face down, lay the soft cloth under the screen to protect the screen surface.

  • Page 8: Mechanical Disassemblies

    Mechanical Disassemblies Location of Circuit Board Sub Power Unit Jack Sensor Unit (D) Unit (A) Shield Plate (PANEL) Power Unit Main Unit Sub CPU Unit Contact Unit Sensor Jack Front RC/RS2324 Unit (B) Unit (C) Unit Unit Jack Unit (A) Fig.
  • Page 9 Mechanical Disassemblies 2. Panel Module and Chassis Removal (Fig. 5) 1) Remove 21 screws (C: 4X8). (Fig. 5) 2) Remove Flat Cable from Front Unit (R/C AMP. or Power SW ...etc.) to Sub CPU Unit (K8H). Note: This cable is fixed with another cables by ferrite core. After servicing, it is necessary to be fixed to previous position.
  • Page 10 Mechanical Disassemblies 3. Chassis Removal (Fig. 6) To remove chassis from Panel Module. 1) Remove screws D (8pcs: 5X40). 2) Lift up the chassis to have Panel Holders and remove one side of the wire between Main Unit (K7S) and Panel Module.
  • Page 11 Mechanical Disassemblies 4. Optical Filter Removal Cabinet Front includes Optical Filter to protect the damage of Panel, improve picture quality, or prevent exposure of interference. For removal of Optical Filter, remove screws of Fig.7-1 and Fig.7-2. [NOTE] The Optical Filter is easy to be damaged. Do not touch directly by hand. If there is the dust, remove it by watery neutral detergent.
  • Page 12 Mechanical Disassemblies I Flat Cable Removal This set is used 3 kinds of connector for flat cable. For removal of cable, refer as below not to damage. Type A Type B Type C Cable Cable Cable For removal of flat cable, lift up hook of For removal of flat cable, slide hook of For removal of flat cable, pull off only.
  • Page 13 Mechanical Disassemblies Notice for service of Unit In below Unit, can be repaired inside parts or unit itself. Order service parts for repair. Sub Power Unit Jack Sensor Unit (D) Unit (A) Shield Plate (PANEL) Power Unit Main Unit Sub CPU Unit Contact Unit Jack Sensor...
  • Page 14 Mechanical Disassemblies Attention Below 3 Units are included with Panel for PDP Module. Do not remove from Panel. For changing Panel, it is necessary to change these all units together. Panel Power Unit This is not included in Panel Module. For changing Panel Module, remove and use it.

  • Page 15: Adjustment

    I Adjustment CAUTION The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the following adjustments except requiring the readjustments in servicing otherwise it may cause loss of performance and product safety. Before Adjustment This adjustment is done to enter Service Mode by Remote Control Unit.
  • Page 16 Adjustment I To adjust The next 2 pages show Data for adjustment. To select adjustment item, press (↑) button on the remote control unit. To adjust data, press (→) button ( The characters of data become yellow.) and press (↑) or (↓) button to change data.
  • Page 17 Adjustment I Service Adjustment Data Table Data Area Initial Adjustment Name Adjustment Item Note Data AV-Dynamic Contrast Picture Menu (Dynamic) Brightness Color Tint Sharpness AV Standard Contrast Picture Menu (Natural) Brightness Color Tint Sharpness AV Cinema Contrast Picture Menu (Cinema) Brightness Color Tint...
  • Page 18 Adjustment Data Area Initial Adjustment Name Adjustment Item Note Data Blue Color Temp L-AV AV Color Temperature (Low) Green Blue Color Temp H-PC PC Color Temperature (High) Green Blue Color Temp M-PC PC Color Temperature (STD) Green Blue Color Temp L-PC PC Color Temperature (Low) Green Blue...
  • Page 19 Adjustment I Setting the fixed data This adjustment is controlled by the CPU (IC801) thorough the IIC Data Bus Line in the chassis, and those adjustment data are memorized into the memory IC (IC808). Therefore, SUB CPU Board or the memory IC (IC808) is replaced, data of those will be disappeared.

  • Page 20: Circuit Block Diagram

    I Circuit Block Diagram I Video Signal Flow (1) CVBS, Y/C CVBS (Composite Video) or Y/C signal from AV1, AV2 or AV3 terminal is input to AV SW IC (IC1001) and selected signal. CVBS signal selected by IC1001 is input to 3 Dimension Y/C Separation IC (IC7101) and input to IC1001 again. (In case of NTSC Signal) On the other hand it is input to Digital Decoder IC (IC401) and output for Monitor Out signal (CVBS only).

  • Page 21: Circuit Block Diagram

    Circuit Block Diagram I Audio Signal Flow Sound signals (L & R) from AV1, AV2 or AV3 are input to AV SW IC (IC1001) and selected. Sound signals from AV4 terminal are output for “Through Out” terminal. Sound signals from D-SUB or AV4 are input to IC1001 after selected by SW IC (IC1002) . The selected signals by IC1001 are output to Monitor Out and also input to below ICs.

  • Page 22: Power Supply Lines

    I Power Supply Lines [NOTE] Refer to next page for Power Fail Circuit -22-...

  • Page 23: Power Fail Circuit

    I Power Fail Circuit CPU (IC801) is programmed that the set goes to standby mode when there is circuit fail as below. 1. AUDIO AMP FAIL(2) : Detected the fail of Audio AMP IC (IC071) ( Not used in this model.) 2.

  • Page 24: Power Fail Circuit

    Power Fail Circuit When operating the Power Fail Circuit, On-Screen-Display message or LED flashing time is shown as below. On-Screen-Display Message 1. FAN FAIL When the cooling fan is trouble, below message is displayed. This message is displayed for 10 seconds in every 10 minutes.

  • Page 25: Troubleshooting

    I Troubleshooting No Power Refer to Schematic Diagram or Power Supply Line, find out the part of trouble. In advance check the AC cord and power SW to be on. Is LED flashed? Panel Power Unit Is fuse (F001) is broken. in Sub Power Unit broken? Check '5VSTB' line in SUB...

  • Page 26: Troubleshooting

    Troubleshooting No Sound Refer to Schematic Diagram or Chassis Block Diagram, find out the part of trouble. In advance check the setting mode according to Instruction Manual. Check around IC1001 in Main Unit. All mode? Is there Check around IC031 sound signal from monitor out in SUB CPU Unit.
  • Page 27 I Control Port Functions System Control (CPU : IC801) Name Function Description Note pin 1 PA3/WR F-CLK CLOCK for Flash Writing pin 2 PA4/RD F-DATA DATA for Flash Writing pin 3 PA5/RS F-ENABLE ENABLE for Flash Writing Pull-Up pin 4 P70/INT0 CHIP SEL CHIP SELECT (Communication to PIXEL) Pull-Up pin 5 P71/INT1...

  • Page 28: Control Port Functions

    Control Port Functions Name Function Description Note pin46 P02 LED (Red) Output ON = H, OFF = L pin47 P03 N.C. (Not Used) pin48 P04 POWER-1 Power Control CPU-GO pin49 P05 POWER-2 Power Control PDP-GO pin50 P06 PC1/PC2(BNC)Audio SW PC1=H, PC2=L pin51 P07 PC1/PC2(BNC)Audio SW PC1=L, PC2=L pin52 P20/INT4...
  • Page 29 I IC Block Diagrams G Digital Decoder (IC401: VPC3230D) Y 2D Scaler Output Analog Adaptive Colour Mixer YOUT VIN1 Comb Decoder Formatter Front-end Cr,Cb Filter VIN2 NTSC ITU-R 656 VIN3 ITU-R 601 YCOE NTSC SECAM Contrast VIN4 2XADC Brightness Memory FIFO Saturation Peaking...

  • Page 30: Ic Block Diagrams

    IC Block Diagrams G I / P Converter (IC501: SDA9415) X1CLKD TEST RESET HINM ISCM VINM clock Input sync controller Master doubling CLKOUT SYNCENM PLLD Vector Memory INTERLACED OSCM/S Letter Output sync HOUT clock controller CLKM doubling VOUT detection Master PLLM motion BLNK...
  • Page 31 IC Block Diagrams G Main Scaler (IC301: PW365) G Sync. Separation (IC8971: LA7217-T-TRM) -31-...
  • Page 32 IC Block Diagrams G Sync. Separation (IC1201: BA7078AF) G RGB / Component Switch (IC1123/24: BA7657F) -32-...
  • Page 33 IC Block Diagrams G Audio / Video Switch (IC1001: CXA1845Q) -33-...
  • Page 34 IC Block Diagrams G Audio Control (IC001: CXA2013N) G Q–Sound (IC002: MM1369BD) -34-...
  • Page 35 IC Block Diagrams G BBE (IC121: NJM2155M) G Digital AMP (IC071: TA1101B) -35-...
  • Page 36 IC Block Diagrams G Clock Generator (IC303: AV9155C) 2XCPU OUTPUT SCLK20-22 BUFFERS CLOCK 14.318MHz crystal REFERENCE CLOCK 14.318MHz KBCLK 14.318MHz OUTPUT PERIPHERAL BUSCLK BUFFERS CLOCK FDCLK COMMCLK POWER-DOWN AGND -36-...

  • Page 37: Pin Description Of Diode, Transistor And Ic

    I Pin Description of Diode, Transistor and IC G Diode K: Cathode A: Anode G Transistor/FET C: Collector D: Drain B: Base G: Gate Index E: Emitter S: Source C1 C2 C1 C2 G IC (GND) RESET (IN) (OUT) Index Index Index Index...

  • Page 38: Parts List

    610 298 4477 DEC SHEET SIDE BTM J3BK 645 011 6148 CORD,POWER-3.0MK (UK) 610 295 8553 SPRING-J3DA INSTRUCTIONS MANUAL 645 049 9203 BADGE,SANYO*53.5X12L53.5 610 297 1217 MANUAL-J3BL (English) 411 076 3404 SCR TPG BRZ+FLG 3X6 610 299 0294 MANUAL-J3BL-D (Germany)
  • Page 39 Electrical Parts List Product safety should be considered when a component replacement is made in any area of a PDP monior. Components indicated by a mark in this parts list and the circuit diagram show components whose value have special significance to product safety. It is particularly recommended that only parts specified on the following parts list be used for components replacement pointed out by the mark.
  • Page 40 Electrical Parts List Key No. Part No. Description Key No. Part No. Description OUT OF CIRCUIT BOARD 405 014 4608 TR 2SC2412K T146 S 405 015 8704 TR 2SC2812-L6-TB LF901 645 030 4200 UNIT,NOISE FILTER MISCELLANEOUS 405 015 8902 TR 2SC2812-L7-TB 405 163 1602 TR 2SC2812N-L6-TB0 EL901...
  • Page 41 Electrical Parts List Key No. Part No. Description Key No. Part No. Description 405 147 2205 TR 2SA1037AK-S-T146 405 163 2708 TR 2SA1179N-M7-TB 405 002 0308 TR 2SA1037K T146 R Q7012 405 014 4509 TR 2SC2412K T146 R 405 002 0407 TR 2SA1037K T146 S 405 014 4608 TR 2SC2412K T146 S...
  • Page 42 Electrical Parts List Key No. Part No. Description Key No. Part No. Description 405 015 8902 TR 2SC2812-L7-TB IC201 409 461 7304 IC AD8057ART 405 163 1602 TR 2SC2812N-L6-TB0 IC202 409 461 7304 IC AD8057ART 405 163 1701 TR 2SC2812N-L7-TB0 IC203 409 461 7304 IC AD8057ART...
  • Page 43 Electrical Parts List Key No. Part No. Description Key No. Part No. Description C1008 403 149 9208 CERAMIC 0.01U Z C1181 403 343 4900 ELECT 470U M C1009 403 149 9208 CERAMIC 0.01U Z C1204 403 267 0606 NP-ELECT 4.7U M C1010 403 343 3408 ELECT...
  • Page 44 Electrical Parts List Key No. Part No. Description Key No. Part No. Description C217 403 164 0204 CERAMIC 0.1U Z C334 403 164 0204 CERAMIC 0.1U Z C218 403 283 6309 CERAMIC 1U Z C341 403 164 0204 CERAMIC 0.1U Z C219 403 283 6309 CERAMIC...
  • Page 45 Electrical Parts List Key No. Part No. Description Key No. Part No. Description C504 403 164 0204 CERAMIC 0.1U Z C7103 403 283 6309 CERAMIC 1U Z C505 403 164 0204 CERAMIC 0.1U Z C7106 403 164 0204 CERAMIC 0.1U Z C506 403 155 4204 CERAMIC...
  • Page 46 Electrical Parts List Key No. Part No. Description Key No. Part No. Description C8974 403 164 0204 CERAMIC 0.1U Z RB205 645 021 0358 R-NETWORK 100X4 0.063W C8975 403 164 0204 CERAMIC 0.1U Z 645 031 3325 R-NETWORK 100X4 1/16W C8976 403 157 6404 CERAMIC...
  • Page 47 Electrical Parts List Key No. Part No. Description Key No. Part No. Description RB753 645 021 0358 R-NETWORK 100X4 0.063W R1054 401 105 6001 MT-GLAZE 5.6K JA 1/16W 645 031 3325 R-NETWORK 100X4 1/16W R1055 401 037 2805 MT-GLAZE 75 JA 1/8W RB754 645 021 0358...
  • Page 48 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R1187 401 105 2805 MT-GLAZE 2.2K JA 1/16W R1851 401 105 2003 MT-GLAZE 1.8K JA 1/16W R1201 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R1852 401 105 2003 MT-GLAZE 1.8K JA 1/16W R1202...
  • Page 49 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R253 401 105 0603 MT-GLAZE 10K JA 1/16W R379 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R255 401 105 0405 MT-GLAZE 100 JA 1/16W R380 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R256...
  • Page 50 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R616 401 105 3901 MT-GLAZE 33 JA 1/16W R7027 401 105 0504 MT-GLAZE 1K JA 1/16W R617 401 105 3901 MT-GLAZE 33 JA 1/16W R7028 401 105 5301 MT-GLAZE 4.7K JA 1/16W R619...
  • Page 51 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R767 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R999 401 105 5301 MT-GLAZE 4.7K JA 1/16W VARIABLE RESISTOR R768 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R771 401 105 0306 MT-GLAZE 10 JA 1/16W...
  • Page 52 Electrical Parts List Key No. Part No. Description Key No. Part No. Description 645 026 1008 INDUCTOR,3.3U M D961 407 201 2701 DIODE RB051L-40-TE25 L7007 645 021 1607 INDUCTOR,10U J D962 407 201 2701 DIODE RB051L-40-TE25 645 032 8213 INDUCTOR,10U J D963 407 201 2701 DIODE RB051L-40-TE25...
  • Page 53 Electrical Parts List Key No. Part No. Description Key No. Part No. Description 405 015 8902 TR 2SC2812-L7-TB 405 014 4608 TR 2SC2412K T146 S 405 163 1602 TR 2SC2812N-L6-TB0 405 015 8704 TR 2SC2812-L6-TB 405 163 1701 TR 2SC2812N-L7-TB0 405 015 8902 TR 2SC2812-L7-TB Q006...
  • Page 54 Electrical Parts List Key No. Part No. Description Key No. Part No. Description IC811 409 397 3005 IC TC7SET04FU-(TE85L) C052 403 321 7404 ELECT 100U M IC812 409 397 3005 IC TC7SET04FU-(TE85L) C053 403 215 2201 CERAMIC 0.01U K IC816 409 434 8109 IC TC4053BFT-(EL) C054...
  • Page 55 Electrical Parts List Key No. Part No. Description Key No. Part No. Description C126 403 343 3408 ELECT 10U M C850 403 164 0204 CERAMIC 0.1U Z C127 403 343 3408 ELECT 10U M C851 403 343 3408 ELECT 10U M C128 403 343 3408 ELECT...
  • Page 56 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R064 401 105 7305 MT-GLAZE 820 JA 1/16W R1874 401 105 0504 MT-GLAZE 1K JA 1/16W R065 401 105 0603 MT-GLAZE 10K JA 1/16W R1876 401 105 0603 MT-GLAZE 10K JA 1/16W R070...
  • Page 57 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R840 401 105 2607 MT-GLAZE 22 JA 1/16W L102 645 036 3894 INDUCTOR,220 OHM R841 401 105 2607 MT-GLAZE 22 JA 1/16W L111 401 035 4108 MT-GLAZE 0.000 ZA 1/8W R843...
  • Page 58 Electrical Parts List Key No. Part No. Description Key No. Part No. Description 610 295 3763 ASSY,PWB,SENS-A J3BA 1AA0B10N0210C L1536 645 024 0669 FILTER,EMI 20PF MISCELLANEOUS INTEGRATED CIRCUIT K1501 645 048 3882 SOCKET,BNC 1P IC1981 409 481 8602 IC LM76CHMX-5 K1502 645 049 3294 SOCKET,DIN 4P...
  • Page 59 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R1208 401 105 7909 MT-GLAZE 0.000 ZA 1/16W SC1109 645 045 7449 SURGE-ABSORBER R1232 401 105 7909 MT-GLAZE 0.000 ZA 1/16W SC1111 645 045 7449 SURGE-ABSORBER R1233 401 105 5509 MT-GLAZE 470K JA 1/16W...
  • Page 60 Electrical Parts List Key No. Part No. Description Key No. Part No. Description R2013 645 018 9326 INDUCTOR,1000 OHM SC1902 645 045 7449 SURGE-ABSORBER R2014 645 018 9326 INDUCTOR,1000 OHM SW1901 645 009 3685 SWITCH,PUSH 2P-2TX1 R2025 401 105 7909 MT-GLAZE 0.000 ZA 1/16W 610 295 3787 ASSY,PWB,CONTACT J3BA 1AA0B10N0210E...

  • Page 61: Parts Description And Reading In Schematic Diagram

    I Parts Description and Reading in Schematic Diagram 1. The parts specification of resistors, capacitors and Resistor Reading coils are expressed in designated code. Please check Example 1/2 D J 10K B the parts description by the following code table. 2.
  • Page 62 I Memo...
  • Page 63 I Memo...
  • Page 64 FEB / 2002 / 335 Printed in Japan SANYO Electric Co., Ltd.

  • Page 65: Schematic Diagrams

    3 The grounding lead must be connected to the ground of the same PB1901 A4B10N01600;A4B10N0160B L6,L7 circuit when measuring of voltages and waveforms. 12 x 10 (12kohm) PDP-42H1EV / 42H1A PDP-42H1EV / 42H1A J3BL_01(0.55) A - 1 A - 2 A - 3...
  • Page 66 L302 SCL-KOU L710 Q1852 J11SN300N (J3BK 8802-) R1862 1/16 DIGITAL GZ0C D1852 536P 1SS355 (SIDE:A) (SIDE:A) (SIDE:A) FIX FOR MLTI-BOAD FOR MLTI-BOAD TO AV3-INPUT PDP-42H1EV / 42H1A PDP-42H1EV / 42H1A J3BL_02(0.55) A - 4 A - 5 A - 6...
  • Page 67 R1974 R1971 F34DA K001 K1951 200G 100C K1391 J12B07600 J11B2731N (SIDE:A) J12B06800 K1801 (SIDE:A) (SIDE:A) (SIDE:A) J11B3690N AUDIO L/R D-SUB(ANALOG-PC) FLW1/FLW2/KOUTEI HEAD PHONE (3.5MIN) PDP-42H1EV / 42H1A PDP-42H1EV / 42H1A J3BL_03(0.55) A - 7 A - 8 A - 9...
  • Page 68 MSM54V16258BSL-40TS-K 1AA0B10N020B0 L6,L7 3 The grounding lead must be connected to the ground of the same P3/3 circuit when measuring of voltages and waveforms. PDP-42H1EV / 42H1A PDP-42H1EV / 42H1A J3BL_04(0.66) A - 10 A - 11 A - 12...

  • Page 69: Printed Wiring Board Diagrams

    I Printed Wiring Board Diagrams JACK-C UNIT (ASSY, PWB, JACK-C) [A SIDE] MAIN UNIT (ASSY, PWB, MAIN) [A SIDE] CONNECT UNIT SUB CPU UNIT (ASSY, PWB, SUB CPU) [A SIDE] K17D B10N01500 IC804 IC806 IC822 IC1002 IC823 R688 R687 R689 R690 R691 R692...
  • Page 70 JACK-C UNIT (ASSY, PWB, JACK-C) [B SIDE] MAIN UNIT (ASSY, PWB, MAIN) [B SIDE] SUB CPU UNIT (ASSY, PWB, SUB CPU) [B SIDE] FRONT UNIT (ASSY, PWB, FRONT) [B SIDE] RC/232C UNIT (ASSY, PWB, RC/232C) [B SIDE] JACK-D UNIT (ASSY, PWB, JACK-D) [B SIDE] POWER UNIT (ASSY, PWB, POWER) [B SIDE] SENSOR-B UNIT...

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