Kenwood LZ-800W Service Manual
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Kenwood LZ-800W Service Manual

Kenwood LZ-800W Service Manual

Monitor
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MONITOR
LZ-800W
SERVICE MANUAL
Panel assy
(A64-2064-01)
Miniature phone jack
(E11-0626-05)
Magic tape
(H30-0051-05)
Mounting hardware
(J21-3801-04)
Cord with plug
(E30-4855-05)
Screw set
(N99-1558-05)
2000-7 PRINTED IN JAPAN
C
B51-7633-00 (4) 1694
Metallic cabinet
(A01-2725-02)
Mounting hardware
(W01-1508-05)
DC cord
(E30-4856-15)

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Summary of Contents for Kenwood LZ-800W

  • Page 1 MONITOR LZ-800W SERVICE MANUAL 2000-7 PRINTED IN JAPAN B51-7633-00 (4) 1694 Panel assy (A64-2064-01) Metallic cabinet (A01-2725-02) Miniature phone jack (E11-0626-05) Cord with plug Mounting hardware Magic tape (E30-4855-05) (W01-1508-05) (H30-0051-05) DC cord (E30-4856-15) Screw set (N99-1558-05) Mounting hardware (J21-3801-04)
  • Page 2 LZ-800W BLOCK DIAGRAM (Hideaway Unit)
  • Page 3 LZ-800W BLOCK DIAGRAM (Video Unit)

  • Page 4: Circuit Description

    LZ-800W CIRCUIT DESCRIPTION Hideaway Unit (X25-8630-61) Ref. No. Parts No. Description Processing Operation TA78DS05F 5V Reg +5V power supply for microprocessor UPD784214GC077 Microprocessor Controls functions PST9130NR RESET IC Controls reset operation TDA8579T-T Isolation amplifier Audio input isolation amplifier (AV IN2)
  • Page 5 LZ-800W CIRCUIT DESCRIPTION Video Unit (X35-4170-61) Ref. No. Parts No. Description Processing Operation IC20 PNA4603H Autodimmer IC Autodimmer detection sensor IC30 TC7W34FU Buffer Remote control output buffer IC100 NJM2368V DC-DC control IC Controls DC-DC IC150 TA78DS05F 5V Reg +5V power supply for microprocessor...

  • Page 6: Microcomputer's Terminal Description

    LZ-800W MICROCOMPUTER'S TERMINAL DESCRIPTION Panel Microprocessor terminal functions (X35-, IC600) Pin No. Pin name Function Logic Not used SCREEN Tact key screen L: SCREEN ON H: SCREEN OFF MODE Tact key wide mode L: MODE ON H: MODE OFF V.SEL Tact key video switch L: V.SEL ON H: V.SEL OFF...
  • Page 7 SPMUTE Speaker mute output H: mute off L: mute on VMUTE Video mute output H: mute on L: mute off KEN/KY KENWOOD/KY market sector setup H: KENWOOD L: KY TV/NAVI TV·VIDEO/NAVI change H: NAVI L: TV/VIDEO Not used NT/PAL NT/PAL change...
  • Page 8 LZ-800W MICROCOMPUTER'S TERMINAL DESCRIPTION Hideaway processor terminal function description (X25-, IC3) Pin No. Pin name Function Logic DIVER Diversity adjustment mode (test mode) H: adjustment mode ON Not used IF switch (overseas only) H: DK AREA IF switch (overseas only)
  • Page 9 LZ-800W MICROCOMPUTER'S TERMINAL DESCRIPTION Pin No. Pin name Function Logic PLLCLK PLL serial clock output PLLENB PLL data enable output T VMUTE TV tuner, video mute H: mute on L: mute off FMDATA FM transmitter DATA output FMCLK FM transmitter CLK output...

  • Page 10: Key Explanation

    LZ-800W KEY EXPLANATION 1 Composition Covers the tact key, touch panel and remote control keys. 2 Key explanation 2-1 Tact key The tact key functions are listed below. Table 2-1 Tact key functions Name Operation PWR ON (AVOUT) (When POWER OFF) Power turns on with one push (When POWER ON) Switches FM-TX audio and AV output sources (NORMAL→TV→NAV→VD1→VD2)

  • Page 11: Test Mode

    LZ-800W TEST MODE 1. Setup Method Reset by pressing the 'VOL UP' key and 'SCRN" key. 2. Details Includes all items applicable to the supported NA-R300 remote control unit. Function Operation details Autodimmer The dimmer responds with the same timing (without waiting) as external light changes...
  • Page 12 LZ-800W ADJUSTMENT X35 Unit Adjustment Specification Item Adjustment method/Adjustment value Conditions 1. Screen display start • With a monoscope display confirm that the left and right positions are equal. • Monoscope position confirmation If they are slightly off, adjust for left/right equality with VR200.
  • Page 13 LZ-800W ADJUSTMENT Power Supply Voltage: 14.4V X35 Gamma Timing Controller Circuit Adjustment Specification Item Adjustment method/Adjustment value Conditions 1. Set to TEST mode • Pressing the (SCREEN) and (VOL+) keys set the (RESET) key ON. • Must be in TEST mode.
  • Page 14 LZ-800W ADJUSTMENT Power Supply Voltage: 14.4V X35 Gamma Timing Controller Circuit Adjustment Specification Item Adjustment method/Adjustment value Conditions 5. Gamma curve (6) Adjust GAMMA2 VR305 so the 7th step from the pedestal is 3.1V±0.1V. • Input signal adjustment Composite input (10 step signal) •...
  • Page 15 PC BOARD (Component side view) HIDEAWAY UNIT (X25-8630-61) X25-8630-61 (J74-1103-12) GREEN (X25-8630-61) C242 IC14 R242 Ref. No. Address C243 C100 10 13 C244 IC18 R152 C160 R134 R150 C256 S-METER IC11 C206 VR401 R129 IC12 R151 MUTE LEVEL V LEVEL C101 IC13 R131...
  • Page 16 PC BOARD (Foil side view) HIDEAWAY UNIT (X25-8630-61) X25-8630-61 (J74-1103-12) GREEN (X25-8630-61) C242 IC14 R242 Ref. No. Address C100 C243 C244 IC18 R152 C160 R134 R150 C256 IC11 C206 S-METER VR401 R129 IC12 R151 V LEVEL MUTE LEVEL C101 IC13 C158 R131 W401...
  • Page 17 PC BOARD (Component side view) VIDEO UNIT (X35-4170-61) X35-4170-61 A/2 (J74-1083-42) C710 C703 R709 IC700 R705 C704 R710 D702 R711 C411 C404 C403 R707 IC701 Q703 L700 C711 C705 D400 R712 C708 C707 R409 C408 C716 Q401 C407 C400 Q700 R415 IC400 C709...
  • Page 18 PC BOARD (Foil side view) VIDEO UNIT (X35-4170-61) X35-4170-61 A/2 (J74-1083-42) C710 C703 R709 IC700 R705 C704 R710 D702 R711 R707 C411 IC701 Q703 C403 L700 C404 C711 Q721 C705 D400 R712 C707 C708 C716 R409 C408 Q401 C407 C400 Q700 R403 R415...

  • Page 19: Exploded View

    LZ-800W EXPLODED VIEW φ2.6x6 (BLK) N09-4142-05 φ1.7x7 N09-4386-05 φ2x8 (BLK) N82-2008-45 φ3x8 N80-3008-46 φ3x6 N89-3006-46 LCD1 M3x6 N30-3006-46 X35-4170-61 (A/2) X25-8630-61 Parts with the exploded numbers larger than 700 are not supplied.
  • Page 20 (X25-8630-61) 1 2 3 4 5 6 7 C1 0.01 SWITCH 2200u16 100K F2 1A ACC5V DC CORD (E30-4856-15) R2 1K 4.87V R3 1K 4.87V R4 1K 4.84V 4.9V RGB SW BPCLK 0.05V R218 1K 4.88V SCDATA S MUTE 0.05V MCDATA SC REQ 4.9V...
  • Page 21 4.39V AUDIO 4.38V UPC1830GT SWITCH 2.2K R239 C255 4.7K SWITCH SWITCH R249 IC12 MULTIPLEXER MULTIPLEXER LZ-800W (1/2) LZ-800W •DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual instruments or/and units.
  • Page 22 (X35-4170-61) (A/2) +14V D100 L102 5V AVR C104 100uH D150 0.01 +13V 13.0V 4.9V IC150 L105 R101 DC/DC +5.3V 13.6V 750K 2.7uH L101 R102 ACC+14V L103 D101 F100 1.0A Q151 68uH +5.3V ACC+14V IC100 Q150 Q701 F700 1.5A L701 R58 75 2.2K +14V L700...
  • Page 23 CONT 2.0V 1.8V C515 R337 R332 HSYNC 2.8V C324 3.9V GANMA0 R501 15 VB 47u6.3 8.2K 2.2K VSYNC VOB1 4.5V 2.7V VR306 C337 DISP VOB2 C325 0.01 C516 2.5V D301 0.01 R338 R333 IC501 8.2K 2.2K BUFF LZ-800W (2/2) LZ-800W...

  • Page 24: Parts List

    LZ-800W PARTS LIST ∗ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohane Parts No. werden nicht geliefert. (X25-8630-61) Des- Des- Ref. No. Parts No. Description Ref.
  • Page 25 LZ-800W PARTS LIST ∗ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohane Parts No. werden nicht geliefert. (X25-8630-61) (X25-8630-61) Des- Des- Ref. No. Parts No.
  • Page 26 LZ-800W PARTS LIST ∗ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohane Parts No. werden nicht geliefert. (X25-8630-61) (X25-8630-61) Des- Des- Ref. No. Parts No.
  • Page 27 LZ-800W PARTS LIST ∗ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohane Parts No. werden nicht geliefert. (X35-4170-61) (X35-4170-61) Des- Des- Ref. No. Parts No.
  • Page 28 LZ-800W PARTS LIST ∗ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohane Parts No. werden nicht geliefert. (X35-4170-61) (X35-4170-61) Des- Des- Ref. No. Parts No.
  • Page 29 LZ-800W PARTS LIST ∗ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohane Parts No. werden nicht geliefert. (X35-4170-61) (X35-4170-61) Des- Des- Ref. No. Parts No.
  • Page 30 LZ-800W PARTS LIST ∗ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohane Parts No. werden nicht geliefert. (X35-4170-61) Des- Ref. No. Parts No. Description tina-...

  • Page 31: Specifications

    LZ-800W SPECIFICATIONS MONITOR Screen Size ................................8.0-inch WIDE (mm) ..........176.4 (W)×99.2 (H)×202 (Diagonal) (inch) ..............6-15/16 (W)×3-7/8 (H) Display System ........................... Transparent TN LCD panel Drive System ............................TFT active matrix system Number of Pixels ................................336,960 480H×234V×RGB Effective pixels .................................. 99.99% Pixel Arrangement ..........................

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