Kenwood RXD-V252 Service Manual

Kenwood mini hi-fi component system -service manual
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MINI HiFi COMPONENT SYSTEM
RXD-V252/V252-H
SERVICE MANUAL
(XD-V252)**
FRT cab ass'y *
(A60-)
FL panel *
(B10-)
Phone jack
(E11-0942-08)
Jack(MIC)
(E11-0953-08)
Cassette lid(L)
(A21-3958-08)
**Refer to page 2 if you want to know system configuration.
In compliance with Federal Regulations, following are repro-
duction of labels on, or inside the product relating to laser
product safety.
© 2001-10 PRINTED IN KOREA
B51-5759-00 (K/K) 404
* Refer to parts list on page 27.
KENWOOD-Corp. certifies this equipment conforms to DHHS
Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM.
Panel(VCD)
(A60-2220-08)
Knob(VOLUME)
(K29-8047-08)
Dress ring
(A21-3966-08)
Cassette lid(R)
(A21-3959-08)
70%

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  Summary of Contents for Kenwood RXD-V252

  • Page 1 * Refer to parts list on page 27. In compliance with Federal Regulations, following are repro- KENWOOD-Corp. certifies this equipment conforms to DHHS duction of labels on, or inside the product relating to laser Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J.
  • Page 2: Table Of Contents

    WIRING DIAGRAM .............8 SPECIFICATIONS ........Back cover Attention Please contact our KENWOOD Service Department in your side if you want the service information; Circuit Description. Full Described Parts list and so. Information is available to you by internet from us. Accessories...
  • Page 3: External View

    RXD-V252/V252-H EXTERNAL VIEW Cabinet(TOP) (A02-3014-08) ANTENNA FM Antenna (E70-0145-08) LOOP FM 50kHz Slide switch 230V AM 9kHz SPAN 240V SELECTOR (S62-0086-08) FM 100kHz AM 10kHz VIDEO RCA socket /AUX (E63-1219-08) SPEAKERS RCA socket RATED SPEAKER IMPEDANCE: (E02-0021-08) 6 OHMS MIN.
  • Page 4: Circuit Description

    RXD-V252/V252-H CIRCUIT DESCRIPTION Port Function of MPEG1 Video/Audio Processing : ES3880 (ICM2) Port No. Port Name Function 1,31,51 VCC3 Supply voltage for 3.3V. RAS# DRAM row address strobe (active low). DWE# DRAM write enable (active low). 4~12 MA(0~8) DRAM multiplexed row and column address bus.
  • Page 5 RXD-V252/V252-H CIRCUIT DESCRIPTION Port Function of DAC & TV Encoder : ES3889 (ICM3) Port No. Port Name Function 1,25,26,31,72 Ground. 75,77,91,100 5,16,32,66 Supply voltage for 5.0v. 73, 78,90 DSC C Clock for programming to access internal registers. AUX0 Unused. AUX1 Servo reverse or control pin.
  • Page 6 RXD-V252/V252-H CIRCUIT DESCRIPTION Port No. Port Name Function VREF Internal resistor divider generators common mode reference(CMR) voltage. VREFM DAC and ADC minimum reference. RSET Full scale DAC current adjustment. COMP Compensation pin. 56,57,62,63 VGND Video analog ground. CDAC Modulated chrominance output.
  • Page 7: Adjustment

    RXD-V252/V252-H ADJUSTMENT CHECKING ITEM SG 'N' SET FREQ SPEC REMARKS POINT T301 ADJUST UNTIL VOLTAGE IS WITHIN 87.5MHz 1.3V ± 0.1V FM FREQ (TP301) GIVEN SPEC COVERAGE CONFIRM VOLTAGE IS WITHIN 108.0MHz (TP301) 7.8V ± 0.8V GIVEN SPEC. ADJUST COIL T302 UNTIL MAX.
  • Page 8: Wiring Diagram

    CNP1 CNP12 CNP11 BI11 FW951A CNP403 BI901 MOTOR CNP9 HEAD- POWER PHONES SECTION T801 CNPK1 WT902 CNP901 SO801 CNP10 CD/VCD/MP3 JK601 SECTION SECTION POWER SECTION CD MOTOR AC801 TF801 PWB-D CNP905 150 C CNP2 BI606 CNP3A CNP3 VIDEO JK671 RXD-V252...
  • Page 9: Pc Board

    PC BOARD (Component side view) ANTENNA SPEAKERS SPAN AUX-IN SELECTOR CNP302 S0901 S0301A D303 R924 C929 D304 SW601 C925 C927 S0401 C304 C934 R923 C929 C305 C306 C924 C307 IC301 R921 C315 R420 CNP2 VD301 C317 C384 MJ305 R314 J309 R316 R419 R322...
  • Page 10 PC BOARD (Component side view) MIC UNIT CNPK1 CK43 CNP1 CNP11 CNP12 CK44 CNP2 CNP10 RM73 RM76 CM21 RM21 CM23 E B E RM15 RM27 CM24 CM32 CM22 RM74 CK45 CK46 CM52 RM49 CM50 CM48 CM20 RM63 RM26 R110 CM10 RM16 CM19 CM53...
  • Page 11 PC BOARD (Component side view) DISPLAY SECTION Q713 J700 C704 LED709 39 38 LED700 SW704 SW719 R804 R760 Q706 R805 D700 J717 R761 D701 J718 Q707 R762 J787 EX-BASS J709 D702 R763 J719 R764 J710 Q708 D703 R765 J724 J722 J720 Q709 RD16...
  • Page 12 CD/VCD/MP3 SECTION : LA9235M : 2SC3265Y R50 47 5.0V : LC78636E : KTC3203Y M63001FP : KRC104S : BA4558F : KTA1271Y ICM1 : 1625635T D21,22,DM1 : 1SS133 ICM2 : ES3880F ICM3 : ES3889F : EZ02W4R3Z ICM4 : IX0455 ZD61 : EZ02W3R9Z : KTC3265Y : KRC102S : KTA1504Y...
  • Page 13 CD/VCD/MP3 SECTION CNP12 TUNER/MAIN SECTION CNP403 AU-1 MIC IN 3.9K LATCH CD RES DATA IN(R) CLAMP SW OUT(R) 9 GND 10.0V 3.3uH +10V(A) +10V GND(A) IN(L) OUT(L) CM26 CM12 0.022 CNP1 RM1 33 DSA ACK CM11 RM2 33 DSA STB CM29 CM15 CM14...
  • Page 14 AU-3 SO401 R421 Lch 1 C443 TUNER/MAIN SECTION CNP701 220P AUDIO PROCESSOR IC401 AUX IN C150 C404 22u25 220u16 C444 R422 SW601 220P CLK 24 9kHz 10kHz Rch 2 VDD 23 10.0V 50kHz 100kHz +10V C445 C406 CHASSIS SPARE 220P VREF 22 5.0V 47u16...
  • Page 15: Schematic Diagram

    DISPLAY SECTION POWER SECTION FL701 IC101 AN7345K IC301 : TA7358AP POWER IC302 : LC72131 IC901 IC303 : LA1832S IC401 : LC75341 L-CH R-CH IC811 KIA7805API IC812 : KIA7810AP IC852 : AN78L05T IC901 : STK40270N L921 SO901 Q101,360 : KTA1266GR 0.29uH Q102,103,113 : KRC104M Q104-107 : 2SC1845F...
  • Page 16 TUNING MEMORY/ TIMER CLOCK EQUALIZER DOWN VR701 RD04 RD05 RD06 RD07 RD08 1.5K 2.2K SW705 SW706 SW707 SW708 SW709 SW710 TAPE TUNER 4.8V RD01 RD02 RD03 RXD-V252 4.8V SW701 SW702 SW703 SW704 RXD-V252/V252-H +12V POWER VIDEO REVERSE X-BASS MODE Y39-4060-23...
  • Page 17 RXD-V252/V252-H EXPLODED VIEW(CD MECHANISM) AL SCREW : N09-5335-08 AM ø3x8 : N09-5332-08 AN ø2.6x6 : N32-2606-46 AQ ø2x3 : N30-2003-46 AR WASHER : N19-1435-05 AS ø2x5 : N86-2005-46 PWB-F PWB-B PWB-C Parts with exploded numbers larger than 700 are not supplied.
  • Page 18 3x10 N09-5331-08 SPEAKERS SCREW N09-5334-08 SCREW N09-5335-08 φ 3x10 N09-5338-08 φ N09-5345-08 φ N09-5346-08 φ 3x14 N09-5347-08 N09-5348-08 φ N09-5349-08 φ 3x10 N09-5222-08 φ 3x10 N09-5337-08 JK601 2.6x4 N09-5336-08 PHONES VRK1 MIC LEVEL DISC SKIP SW720 SW721 T801 RPEH RXD-V252...
  • Page 19 Parts No. Parts No. Description Ref. No marks ress Parts nation ress Parts nation marks K29-8047-08 KNOB (VOLUME) JKNBZ0794AWSB RXD-V252, I:RXD-V252-H, MI2 : RXD-252 ✽ K29-8153-08 MIC VOL KNOB JKNBZ0806AWSA A02-3014-08 CABINET(TOP) GCAB-1195AWSA T801 L07-3154-08 TRANSFORMER PTRNP0370AWZZ A02-3015-08 CABINET(R) GITAS0092AWSA...
  • Page 20 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 21 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 22 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 23 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 24 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 25: Exploded View

    RXD-V252/V252-H SPECIFICATIONS Main Unit [CD (VIDEO CD) player section] Laser wave length ......770 to 795 nm [Amplifier section] Laser power class ........1 (IEC) Rated power output Wow & Flutter ..Less than unmeasurable limit 1 kHz, 1% T.H.D., 6 Ω ...(RMS) 38W + 38W Video Output format ......
  • Page 26 Alameda Ministro Rocha Azevedo No. 456, Edificio Jaú, 10o Andar, Cerqueira César, Cep 0140-001, São Paulo-SP-Brasil KENWOOD ELECTRONICS U.K. LIMITED KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB., United Kingdom KENWOOD ELECTRONICS BELGIUM N.V. Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium KENWOOD ELECTRONICS DEUTSCHLAND GMBH Rembrücker Str.

This manual is also suitable for:

Rxd-v252-h