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Sanyo DP26648 Service Manual

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SERVICE MANUAL
Servicing should be performed by only trained and qualified service personnel.
Contents
SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . 2
SERVICE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . 3
ON-SCREEN SERVICE MENU . . . . . . . . . . . . . . . . . . . . . 4
POWER FAILURE CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . 5
MECHANICAL DISASSEMBLY. . . . . . . . . . . . . . . . . . . 6-8
CHASSIS ELECTRICAL PARTS LIST . . . . . . . . . . . . . 9-23
CABINET PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . 24
BLOCK DIAGRAM POWER LINES. . . . . . . . . . . . . . . . . 28
BLOCK DIAGRAM SIGNAL LINES . . . . . . . . . . . . . . . . 29
IC BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . 30-37
TROUBLESHOOTING FLOW CHARTS . . . . . . . . . . 38-40
CONTROL PORT FUNCTIONS . . . . . . . . . . . . . . . . . 41-42
SIGNAL FLOW CHARTS . . . . . . . . . . . . . . . . . . . . . . 43-51
SCHEMATIC NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . 56-57
DP26648, N6CE, PRODUCT CODE 113013904
Remote Control Digital
Color Television
FILE NO.
DP26648
ORIGINAL VERSION
Chassis No. P26648-00
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.

Specifications

POWER RATING . . . . . . . . . . . . . . . . . . . . . . . . . 120VAC
ANTENNA INPUT IMPEDANCE. . . . . . . . . . . . . . . . . 75Ω
RECEIVING CHANNEL . . . . . . . . . . . . . . . . . 2 - 13 (VHF),
REMOTE READY. . . . . . . . . 32 KEY REMOTE CONTROL
SOUND OUTPUT. . . . . . . . . . . . . . . . . . . . . . . . 3.0 W/CH
INTERMEDIATE FREQUENCY
PICTURE IF CARRIER . . . . . . . . . . . . . . . . . . 45.75MHz
SOUND IF CARRIER . . . . . . . . . . . . . . . . . . . 41.25MHz
COLOR SUB CARRIEr. . . . . . . . . . . . . . . . . . 42.17MHz
CABINET DIMENSIONS
WIDTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 665.5mm
HEIGHT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 515.6mm
DEPTH INCLUDING BASE . . . . . . . . . . . . . . . 177.8mm
REFERENCE No.
(U.S.A.)
(CANADA)
120W (AVG.)
UHF/VHF/CATV
DIGITAL
14 - 69 (UHF),
01, 14-94, 95-135 (CATV)
1-135 (DIGITAL)
SM
780150

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  Summary of Contents for Sanyo DP26648

  • Page 1: Table Of Contents

    SCHEMATIC DIAGRAMS ..... 56-57 DEPTH INCLUDING BASE ....177.8mm DP26648, N6CE, PRODUCT CODE 113013904 REFERENCE No.
  • Page 2: Safety Instructions

    SAFETY INSTRUCTIONS SAFETY PRECAUTIONS READING SHOULD NOT EXCEED 750 mV. AC VOLTMETER WARNING: The chassis of this receiver has a floating (5000 ohms per volt or more sensitivity) ground with the potential of one half the AC line voltage in respect to earth ground.
  • Page 3: Service Adjustments

    SERVICE ADJUSTMENTS GENERAL This set has an On-screen Service Menu system included in Volume – the CPU that allows remote operation for most of the ser- Enter Service Menu vice adjustments. ON-SCREEN SERVICE MENU SYSTEM 1. Enter the Service Menu: ∑...
  • Page 4: On-Screen Service Menu

    ON-SCREEN SERVICE MENU Table 1. ON-SCREEN SERVICE MENU When IC801 (EEPROM) is replaced, check the bus data to confirm they are the same as below. See page 3 for On-Screen Service Menu access and adjustments. Title Initial Data Note MUTE Audio mute at Power ON Volume setup inspection Option 1 Data (HDMI)
  • Page 5: Power Failure Circuit

    POWER FAILURE CIRCUIT Check the following if the unit is turned off by the power CPU (IC800) is programmed so the set will go to standby failure detector. mode when there is circuit failure as described below. (Refer to“Block Diagram Power Lines”.) 1.
  • Page 6: Mechanical Disassembly

    MECHANICAL DISASSEMBLY ATTENTION This LCD TV uses several different kinds of screws. Using the correct screw is required to prevent damage. The gaskets are provided to prevent interference to other radio and television receivers. The gaskets must be returned to their previous positions after servicing. Lead wires must be redressed to previous positions after servicing.
  • Page 7 POWER AND MAIN BOARD REMOVAL 1: Main Board Removal Remove 5 screws (3X14) to take the main board off. 2: Power Unit Removal Remove 6 screws (3X14) to take the power unit off LCD panel removal Removal 1. Disconnect the lead wires from LCD panel, speakers, and control board. 2.
  • Page 8 Control Board Removal Remove 1 screws (3X14) to take the control board off. Speakers Removal Remove 4 screws (3X14) to remove each speaker — 8 —...
  • Page 9: Chassis Electrical Parts List

    CHASSIS ELECTRICAL PARTS LIST CAUTION: To Protect against electrical shock and for continued product safety, refer to SAFETY PRECAUTIONS, and PRODUCT SAFETY NOTICE on Page 2. PRODUCT SAFETY NOTICE PRODUCT SAFETY SHOULD BE CONSIDERED WHEN A REPLACEMENT IS MADE IN ANY AREA OF A RECEIVER. COMPONENTS INDICATED BY A IN THIS PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATE COMPONENTS IN WHICH SAFETY CAN BE OF SPECIAL SIGNIFICANCE.
  • Page 10 Schematic Schematic Part No. Part No. Description Description Location Location CAPACITORS C1246 CEXLB1V470VDN ELECT 47U M C1247 CEXLB1V470VDN ELECT 47U M FC001 CP1H100MEMANN NP-ELECT 10U M C1248 CK1H104KLZBNG CERAMIC 0.1U K C002 CK1H104ZLZFNG CERAMIC 0.1U Z C1249 CEXLB1V470VDN ELECT 47U M C006 CE1H4R7MZVANN ELECT 4.7U M...
  • Page 11 Schematic Schematic Part No. Part No. Description Description Location Location C1685 CEXLB1V471VDN ELECT 470U M C5520 CK1A105KLZBNG CERAMIC 1U K C1686 CK1H104ZLZFNG CERAMIC 0.1U Z C5521 CK1H104ZLZFNG CERAMIC 0.1U Z C1687 CEXLB1E102VDN ELECT 1K U M C5522 CK1H104ZLZFNG CERAMIC 0.1U Z C1689 CK1H104ZLZFNG CERAMIC...
  • Page 12 Schematic Schematic Part No. Part No. Description Description Location Location C5575 CK1H104ZLZFNG CERAMIC 0.1U Z C5642 CK1H104ZLZFNG CERAMIC 0.1U Z C5576 CK1A105KLZBNG CERAMIC 1U K C5643 CK1H104KLZBNG CERAMIC 0.1U K C5577 CK1A105KLZBNG CERAMIC 1U K C5644 CK1C224KLZBNG CERAMIC 0.22U K C5579 CK1H104ZLZFNG CERAMIC...
  • Page 13: Integrated Circuits

    Schematic Schematic Part No. Part No. Description Description Location Location C6066 CEXLB0J221VDN ELECT 220U M 6.3V DIODES C6067 CEXLB0J102VDN ELECT 1000U M 6.3V D801 DD1SS352----G DIODE 1SS352-(TPH3) C6071 CK1A105KLZBNG CERAMIC 1U K DD1SS355----G DIODE 1SS355 TE-17 C6072 CEXLB1V470VDN ELECT 47U M D821 DD1SS352----G DIODE 1SS352-(TPH3)
  • Page 14 Schematic Schematic Part No. Part No. Description Description Location Location IC1690 QPST600DMT--P IC PST600DMT L1619 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W IC2400 QXXAVC837---P IC AT24C02BN-10SU-1.8 L1621 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W QXXAVC986---P IC CAT24C02WI-GT3 L1622 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W IC3200 QNJW1142CV--P IC NJW1142CV L1651...
  • Page 15 Schematic Schematic Part No. Part No. Description Description Location Location L5521 1AV4L2FB3R3MG INDUCTOR, 3.3U M L6357 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W L5524 1AV4L2GAR22JG INDUCTOR, 0.22U J L6358 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W L5528 1AV4L2FB3R3MG INDUCTOR, 3.3U M L6366 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W L5532 1AV4L2FB3R3MG INDUCTOR, 3.3U M...
  • Page 16 Schematic Schematic Part No. Part No. Description Description Location Location L7012 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W TISA1235AC1FP TR ISA1235AC1F L7013 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W Q813 T2SC2412K-R-P TR 2SC2412K-T-96-R L7014 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W T2SC2412K-S-P TR 2SC2412K-T-96-S L7015 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W T2SC2812-L6-P TR 2SC2812-L6-TB...
  • Page 17 Schematic Schematic Part No. Part No. Description Description Location Location Q1204 T2SC2412K-R-P TR 2SC2412K-T-96-R T2SC2812-L7-P TR 2SC2812-L7-TB T2SC2412K-S-P TR 2SC2412K-T-96-S T2SC2812N-L6P TR 2SC2812N-L6-TB T2SC2812-L6-P TR 2SC2812-L6-TB T2SC3928A1R-P TR 2SC3928A1R T2SC2812-L7-P TR 2SC2812-L7-TB T2SC3928A1S-P TR 2SC3928A1S T2SC2812N-L6P TR 2SC2812N-L6-TB Q5801 T2SC2412K-R-P TR 2SC2412K-T-96-R T2SC3928A1R-P TR 2SC3928A1R...
  • Page 18 Schematic Schematic Part No. Part No. Description Description Location Location Q6063 T2SC2812N-L6P TR 2SC2812N-L6-TB R829 RGF1002JTCANL MT-GLAZE 10K JA 1/10W (cont) T2SC3928A1R-P TR 2SC3928A1R R830 RGF1000JTCANL MT-GLAZE 100 JA 1/10W T2SC3928A1S-P TR 2SC3928A1S R831 RGF1000JTCANL MT-GLAZE 100 JA 1/10W Q6333 T2SA1037AK-RP TR 2SA1037AK T146 R R832...
  • Page 19 Schematic Schematic Part No. Part No. Description Description Location Location R909 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R1202 RGF2201JTCANL MT-GLAZE 2.2K JA 1/10W R910 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R1203 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R911 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R1204 RGF2201JTCANL MT-GLAZE...
  • Page 20 Schematic Schematic Part No. Part No. Description Description Location Location R1609 RGF10R0JTCANL MT-GLAZE 10 JA 1/10W R1905 RGF1001JTCANL MT-GLAZE 1K JA 1/10W R1610 RGF10R0JTCANL MT-GLAZE 10 JA 1/10W R1906 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R1611 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R1907 RGF1001JTCANL MT-GLAZE...
  • Page 21 Schematic Schematic Part No. Part No. Description Description Location Location R5539 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W R5604 RGF47R0JTCANL MT-GLAZE 47 JA 1/10W R5541 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W R5605 RGF47R0JTCANL MT-GLAZE 47 JA 1/10W R5542 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W R5606 RGF47R0JTCANL MT-GLAZE...
  • Page 22 Schematic Schematic Part No. Part No. Description Description Location Location R5905 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R6338 RGF3300JTCANL MT-GLAZE 330 JA 1/10W R5906 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R6339 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R5907 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R6356 RGFR000ZTCANL MT-GLAZE...
  • Page 23 Schematic Schematic Part No. Part No. Description Description Location Location SWITCHES MISCELLANEOUS SW1901 1AV4S10B0722J SWITCH, PUSH A001 1AA0B10N237D0 ASSY, PWB, MAIN_Z-N6CE SW1902 1AV4S10B0722J SWITCH, PUSH A002 1AA0B10N242A0 ASSY, PWB, CONTROL-N6CE SW1903 1AV4S10B0722J SWITCH, PUSH A003 1AA0B10N24400 ASSY, PWB, SUB PC-N6CE SW1904 1AV4S10B0722J SWITCH, PUSH...
  • Page 24: Cabinet Parts List

    DESCRIPTION KEY NO. PARTS NO. DESCRIPTION 1JC6P1P0302-- OWNER’S MANUAL 1AA2CAM0638-- CABINET FRONT 1AA2CBM0455-- CABINET BACK 1AV0U10B43105 ASSY, REMOCON GXBJ 1AA2RCM0295-A RC-BATTERY LID-GXBD 1AA2BUM0571-- BUTTON UNITED 1AA2DEM0468-- DEC IND 1AA2SDM0195-- STAND BASE 1AV2BAAS016AA BADGE, SANYO 1AA2LDM0006-- LID BACK — 24 —...
  • Page 25: Component And Testpoint Locations

    COMPONENT AND TESTPOINT LOCATIONS MAIN BOARD PARTS SIDE L1707 CL04 K1000 PARTS SIDE L7002 R1678 L003 K801 L7010 R1677 R886 IC001A L1502 R881 Q808 IC001 R1646 R1648 R1642 R1644 R3201 L6612 L1691 R3200 C007 R1603 C3208 C3205 C008 R885 R900 K_JIGU C3203 R1693...
  • Page 26 COMPONENT AND TESTPOINT LOCATIONS (CONT.) MAIN BOARD FOIL SIDE L6506 CL14 L7012 L1690 L7011 L6120 L7003 L1692 L1724 IC001A R1677 K801 C002 R1678 IC001 L6121 R016 L6602 R1675 D1678 R914 C013 C014 C001 R1676 D1679 C009 R004 R012 L001 K_JIGU R901 R011 A30C5...
  • Page 27 CONTROL BOARD PART SIDE K19FRA D1901 C1902 PWB,CONTROL-N6EE L1901 1AA4B10N2160A C1908 A30C5 CH.- CH.+ VOL.- VOL.+ POWER SW1903 SW1904 SW1905 SW1902 SW1901 CONTROL BOARD SOLDER SIDE A1901 D1901 PWB,CONTROL-N6EE 1AA4B10N2160A K19FRA J1903 J1901 C1902 L1901 C1901 J1902 C1904 C1903 C1910 C1909 C1907 C1905...
  • Page 28: Block Diagram Power Lines

    BLOCK DIAGRAM POWER LINES — 28 —...
  • Page 29: Block Diagram Signal Lines

    BLOCK DIAGRAM SIGNAL LINES — 29 —...
  • Page 30: Ic Block Diagrams

    IC BLOCK DIAGRAMS IC001, Audio AMP Standby Input Amplifier + OUT1 IN 1 Output Amplifier 30k Ω - OUT1 MUTE Vcc/ground shorting protection circuit Load shorting protection circuit Thermal protection circuit PRE\ + OUT 2 Output Amplifier 30k Ω - OUT 2 Input Amplifier Ripple Filter...
  • Page 31 IC BLOCK DIAGRAMS (CONT.) IC1600, DC to DC Converter OCP1- OCP1- Muster mode latch VREF – MASTER OCP1 /SLAVE VREF (2.5V) (VCC-5V) – UVLO 2.8V 50mVV± 10mV DT1Low DT1OFF 1.25V VREF 1V± 10mV 2μA OUT1 – – SS1OFF 1NV1 PROTECTION LOGIC DT1Low SS1OFF 200μA...
  • Page 32 IC1651, DC to DC Converter — 32 —...
  • Page 33 IC BLOCK DIAGRAMS (CONT.) IC5500 Screen Controller — 33 —...
  • Page 34 IC5700, DDR: Double Data Rate SDRAM — 34 —...
  • Page 35 IC BLOCK DIAGRAMS (CONT.) IC6270, Audio A/D AINOPL AINOPR DIGITAL AINL FILTERS DOUT LRCLK AUDIO BCLK INTERFACE MCLK DIGITAL AINR FILTERS CONTROL INTERFACE IC3200, Audio Controller — 35 —...
  • Page 36: Block Diagram

    IC6200, Audio DAC 1.5V to 3.3V 3.3 V 9 V to 12 V Hardware Control Hardware Configuration Reset 2 Vrms Line Level Interpolation Multibit Left Channel ∆∑Modulator Filter Filter Output Serial Audio Input Serial Interface 2 Vrms Line Level Multibit Interpolation Right Channel ∆∑Modulator...
  • Page 37 IC BLOCK DIAGRAMS (CONT.) IC1671, DC to DC Converter IC1240, Component Selecter — 37 —...
  • Page 38: Troubleshooting Flow Charts

    TROUBLESHOOTING FLOW CHARTS NO POWER Check: Power Unit fuse open? the voltage Check: Power Unit to "5V_STBY" line supplied? All 0V (except '5V_STBY' line) the voltage to all lines Check: arround supplied? CPU (IC800), IC (IC801), Crystal (X801), Power Unit (or the voltage to some lines is not supplied.) After a few seconds, the set will be switched off.
  • Page 39 TROUBLESHOOTING FLOW CHARTS (CONT.) NO AUDIO Is there Check: All Modes ? signal at speaker Speaker (SP901, SP902) terminal ? Is there Check: signal at IC001 3pin (L) Line: IC001 7pin - IC800 (CPU) 22pin (Mute) or 5pin (R) ? Parts: Around IC001 (Audio AMP.) Check: Parts: Around IC3200 (Audio Control)
  • Page 40 NO VIDEO Check: RF(TV) ,Digital(TV) All Inputs? Line: A6100 21pin - IC5500 AE2pin A6100 20pin - IC5500 AF2pin only Parts: Around A6100 (TU_IF), IC5500 Check: AV1 only Line: Terminal(CV) - Q5800,5804 - IC5500 W3pin Terminal(Y) - Q5801,5805 - IC5500 U3pin Terminal(C) - Q5802,5806 - IC5500 V3pin Parts: Around IC5500 Check:...
  • Page 41: Control Port Functions

    CONTROL PORT FUNCTIONS System Control (CPU : IC800) Name Function Description P12/SCK0 Reserve (OPEN) P13/SO1 Reserve (OPEN) P14/SI1/SB1 IIC-BUS for NV (DATA)Active ‘L’for IC data NV P15/SCK1 IIC-BUS for NV (CLOCK)Active ‘L’ for IIC clock NV P16/T1PWML REG SW2 REG SW2 (ON:High OFF:Low) P17/T1PWMH/BUZ REG SW3 REG SW3 (ON:High OFF:Low)
  • Page 42 CONTROL PORT FUNCTIONS (CONT.) System Control (CPU : IC800 Cont.) Name Function Description P73/INT3/T0IN Rcin RC Input RESET in Microcomputer Reset RESET:Low Normal:High XT1/AN10 Connect to VDD1 XT2/AN11 Reserve (OPEN) VSS1 GND (0Vdc) Main Clock IN (Fosc=8MHz) Main Clock OUT (Fosc=8MHz) VDD1 Power IN 5V (5Vdc ±...
  • Page 43: Signal Flow Charts

    SIGNAL FLOW CHARTS DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 DEMUX RS-232C Video Decode PC (D-Sub) Clock (24.576MHz) Audio Video RESET HDMI1 (or DVI) I²C Scaler HDMI2 I²C S/P DIF RF-IN 8VSB Audio...
  • Page 44 DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 DEMUX RS-232C Video Decode PC (D-Sub) Clock (24.576MHz) RESET HDMI1 (or DVI) I²C Scaler HDMI2 Video I²C S/P DIF RF-IN 8VSB Audio Digital/ Processing Analog NTSC...
  • Page 45 SIGNAL FLOW CHARTS (CONT.) DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 DEMUX RS-232C Video Decode PC (D-Sub) Clock (24.576MHz) RESET HDMI1 (or DVI) I²C Scaler HDMI2 Video I²C S/P DIF RF-IN Audio NTSC...
  • Page 46 DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video Video 2 (Component) Video 3 (Component) MPEG2 DEMUX RS-232C Video Decode PC (D-Sub) Clock (24.576MHz) RESET HDMI1 (or DVI) Video I²C Scaler HDMI2 I²C S/P DIF RF-IN Audio NTSC Digital/ Processing Decoder...
  • Page 47 SIGNAL FLOW CHARTS (CONT.) DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 Video DEMUX Video RS-232C Decode PC (D-Sub) Clock (24.576MHz) RESET HDMI1 (or DVI) Video I²C Scaler HDMI2 I²C S/P DIF RF-IN Audio NTSC...
  • Page 48 DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 HDMI RS-232C Video Decode PC (D-Sub) Clock (24.576MHz) Video RESET HDMI1 (or DVI) I²C Audio Scaler HDMI2 I²C S/P DIF RF-IN Audio NTSC Digital/ Processing Decoder...
  • Page 49 SIGNAL FLOW CHARTS (CONT.) DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 HDMI RS-232C Video Decode PC (D-Sub) Clock (24.576MHz) Video RESET HDMI1 (or DVI) I²C Audio Scaler HDMI2 I²C S/P DIF RF-IN Audio NTSC...
  • Page 50 DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 HDMI RS-232C Video Decode PC (D-Sub) Clock (24.576MHz) Video RESET HDMI1 (or DVI) I²C Scaler HDMI2 I²C S/P DIF RF-IN Audio NTSC Digital/ Processing Decoder Analog...
  • Page 51 SIGNAL FLOW CHARTS (CONT.) DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 DEMUX RS-232C Video Decode PC (D-Sub) Clock (24.576MHz) Video RESET HDMI1 (or DVI) I²C Scaler HDMI2 I²C S/P DIF RF-IN Audio NTSC...
  • Page 52: Schematic Notes

    SCHEMATIC NOTES NOTES ON SCHEMATIC DIAGRAMS 1. All resistance values in ohms K=1,000 M=1,000,000. 2. Resistors specified with resistance value are “1/6DJ. ” 3. Resistors specified with type of resistor, tolerence and resistance value are “1/4. ” 4. Unless otherwise noted on schematic, all capacitor values less than 1 are expressed in µF (Micro Farad), and the values more than 1 are in pF .
  • Page 53: Ic, Diode, And Transistor Pin Layouts

    IC, DIODE, AND TRANSISTOR PIN LAYOUTS INTEGRATED CIRCUITS PHOTO COUPLERS DIODES TRANSISTORS TOP VIEW TOP VIEW MARK COUNT TERMINALS IN ARROW DIRECTION SIDE VIEW INFRARED EMITTING B ... BASE C ... COLLECTOR A..ANODE E ... EMITTER K..CATHODE CHIP TRANSISTORS CHIP RESISTORS TOP VIEW TOP VIEW 12 x 10 = 12K ohm...
  • Page 54: Pc Board Connections And Locations

    PC BOARD CONNECTIONS AND LOCATIONS — 54 —...
  • Page 55: Capacitor And Resistor Code Chart

    Y ......Wire Wound C ......Solid D ......Carbon Film W ......Wire Wound For parts or service contact Sanyo Manfacturing Corporation P .O. Box 2000 3333 Sanyo Road Forrest City, Arkansas 72335-2000 Mar 2008 SMC Published in U.S.A.
  • Page 56: Schematic Diagrams

    MODEL DP26648 Chassis No. P26648-00 SCHEMATIC DIAGRAMS ELECTROSTATICALLY SENSATIVE DEVICES Many solid-state devices (especially Integrated Circuits) are Electrostatically Sensitive, and, therefore, require special handling techniques as described under “Servicing Electrostatically Sensitive Devices, ” on page two in this service literature.
  • Page 57 MODEL DP26648 Chassis No. P26648-00 SCHEMATIC DIAGRAMS ELECTROSTATICALLY SENSATIVE DEVICES Many solid-state devices (especially Integrated Circuits) are Electrostatically Z0NE Sensitive, and, therefore, require special handling techniques as described under D6053 D6052 1SS355 “Servicing Electrostatically Sensitive Devices, ” on page two in this service literature.