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COMPACT Hi-Fi COMPONENT SYSTEM
RXD-M47WM-H/M47WM-S
LS-M47WM-H/M47WM-S
SERVICE MANUAL
(HM-437WM)
CD cover ass'y *
(F07-)
Phone jack
(E63-1365-08)
Power knob
(K29-8499-08)
Display/Rec. knob
(K29-8501-08)
Search knob
(K29-8503-08)
Cass lid ass'y *
(A53-)
* Refer to parts list on page 26.
In compliance with Federal Regulations, following are repro-
duction of labels on, or inside the product relating to laser
product safety.
Caution : No connection of ground line if disassemble
the unit. Please connect the ground line on
rear panel, PCBs, Chassis and some others.
© 2005-9 PRINTED IN KOREA
B51-5961-00 (K/K) 592
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.
EQ/Bass knob
(K29-8500-08)
CD/Tuner/Tape knob
(K29-8504-08)
Volume knob
(K29-8502-08)
Front cabinet *
(A60-)
.
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Related Manuals for Kenwood HM-437WM
Summary of Contents for Kenwood HM-437WM
- Page 1 * Refer to parts list on page 26. 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: Accessories / Cautions
(A70-1709-08): E type (–) (A70-1710-08): X type System configuration SYSTEM RECEIVER SPEAKER HM-437WM-H RXD-M47WM-H LS-M47WM-H HM437WM-S RXD-M47WM-S LS-M47WM-S Cautions The marking of products using lasers Resetting the Microcomputer The microcomputer may malfunction (unit can- CLASS 1 LASER PRODUCT not be operated, or shows an erroneous dis-... -
Page 3: External View
RXD-M47WM/LS-M47WM EXTERNAL VIEW FM ANT Rear cabinet AM ANT (A80-4535-08) AM Antenna (E40-8089-08) SPEAKERS IMPEDANCE: 4Ω Speaker terminal (E70-0196-08) AC ~ Rubber foot (J02-1563-08)x4 AC power cord * (E30-) * Refer to parts list on page 26. -
Page 4: Block Diagram
DISASSEMBLY INSTRUCTIONS BLOCK DIAGRAM LEFT SURFACE RIGHT SURFACE BOTTOM SURFACE BACK SURFACE FM ANT AM ANT CLASS 1LASER PRODUCT LASER KLASSE 1 APPAREIL A LASER DE CLASSE 1 LUOKAN 1 LASERLAITE KLASS 1 LASERAPPARAT SPEAKE R S MAN UFACTURED: IMPED ANCE : 4 ¸... - Page 5 RXD-M47WM/LS-M47WM SAFETY Important Note!!! Do the following safety checks after servicing this unit. 1. Remove all the externally connected test equipment and wires before testing the unit. 2. Use the safety test circuit as shown below. 3. Plug the power cord or unit to be tested into the test receptacle. 4.
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Page 6: Service Adjustment
RXD-M47WM/LS-M47WM ADJUSTMENT SERVICE ADJUSTMENT Lubrication The mechanical parts are factory coated with a thin coat of light grease and should not require further lubrication. If a light grease is applied, be careful not to get any grease on the play/record head or erase head, hubs, pulleys, tapes reels, drive belts, or switches. - Page 7 RXD-M47WM/LS-M47WM ADJUSTMENT Play/Record and Playback Head Azimuth Adjustment To adjust the play/record and playback head azimuth screw: 1. Connect two (2) VTVMs and a dual trace scope to the stereo headphone jack (as shown) with a 32 ohm dummy load. (See Figure 1.) SCOPE VTVM VTVM...
- Page 8 RXD-M47WM/LS-M47WM ADJUSTMENT Tape Speed Adjustment 1. Set the function switch to TAPE. 2. Connect a frequency counter with a 32 ohm dummy load to the stereo headphone jack. (See Figure 3.) FREQUENCY COUNTER JK801 DUMMY LOAD Figure 3. Tape Speed Adjustment 3.
- Page 9 RXD-M47WM/LS-M47WM ADJUSTMENT TUNER ALIGNMENT PROCEDURE Equipment needed: 1. AM Signal generator 2. FM Signal generator 3. DC Voltage meter 4. Oscilloscope 5. Output meter (VTVM) AM Alignment Step S/G Frequency Dial Setting Indicator Adjust Remarks 450 kHz (1 kHz 30% mod.) 612 kHz Connect T201...
- Page 10 RXD-M47WM/LS-M47WM ADJUSTMENT FM Alignment: TEST UNIT GROUND METER Figure 6. FM Band Frequency Coverage Alignment Connect FM S/G to ANT inputs (mod 1 kHz 22.5kHz dev.) Step S/G Frequency Dial Setting Indicator Adjust Remarks 87.5 MHz Low end Connect DC voltage L203 Adjust until Vt equal to: 2.5 ±...
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Page 11: Troubleshooting
RXD-M47WM/LS-M47WM TROUBLE SHOOTING Circuit Symptom Cause and Remedy General No sound • Speakers are not connected: Check the speaker connection. • Wrong function is selected: Set switch to the proper position. • Defective volume control: Set the volume control to a proper sound level. •... -
Page 12: Pc Board (Component Side View)
PC BOARD (Component side view) CN605 R690 R630 C600 Q604 L602 R601 C612 Q602 ZD601 L601 C6108 C602 CN604 C609 R660 J663 L601A C680 C6112 R603 J678 C6113 C603 J650 C679 IC607 C608 C605 R686 R657 R684 J612 C673 R609 R683 C615 C687... - Page 13 PC BOARD (Component side view) SPEAKERS R812 R811 C822 POWER C821 C901 C909 C902 MAIN C241 C200 R902 R901 C817 D907 J231 L201 J235 C820 J222 J232 VD204 R243 CN805 C234 VD205 R210 U801 L204 C214 BF801 FB802 C834 C818 C803 C835 J226...
- Page 14 PC BOARD (Component side view) DISPLAY CN107 SW107 R173 POWER Q181 R182 CN103 R186 R174 SW100 R188 R143 LCD101 Q182 LED180 R144 C101 R145 Q180 J101 R183 C183 J180 BOOT LED181 D106 SW101 J141 U101 C151 Q120 R185 C105 LED182 R142 C106 C116...
- Page 16 U101 IC603 U601 IC602 IC1001 U201 TMP87EP26F SA2104S MM1669XH SC7313S TA2157FN SC6122 PIN 1 PIN 26 0.8 V PIN 51 4.8 V PIN 76 2.5 V PIN 1 1.1 V 4.38 V 3.2 V PIN 2 2.0 V PIN 27 PIN 52 2.3 V PIN 77...
- Page 17 IC601 IC604 TRANSISTOR TC94A34FG TC94A14FA Ref. No. Transistor PIN E PIN B PIN C Ref. No. Transistor PIN E PIN B PIN C PIN 1 1.6 V PIN 33 1.6 V PIN 1 1.5 V PIN 33 Q101 9014 4.5 V Q312 9013 PIN 2...
- Page 18 R601 Q602 47uH MICK +8.5V +8.5V C600 R690 MIACK/AD16 VDDM 1 MGND IC604 C687 100P VDDT CN603 SDO0/L CCE/PO10 C615 J654 1K BCKO/L DREQ BUCK/REQ/PO11 DISPLAY- J662 1K LRCO/L CN106 SDO3/L SDI0 J661 1K PO12 BCKIA SDO2/L LRCKIB HM-437WM (1/3)
- Page 19 100P Q318 T.MOTOR Q319 Q316 CN104 MODE SW HALF SW C390 SOLENOID 100P MODE SW Q403 Q402 REC SW MODE SW SOLENOID REC SW MOTOR+ C401 REC SW MOTOR+ 0.022 HM-437WM (2/3) MAIN...
- Page 20 SW116 SW117 SW118 TUNER TAPE VOL- REPEAT PROG. PRESET PRESET /BAND BASS DOWN C103 R102 Q101 10u16 3.3K CN107 HM-437WM(3/3) U101 R184, LED180, TMP87EP26-437W MODEL DESTINATION U102 : RPM7138-V4 NAME COUNTRY ABB. U103 M24C16 HM-437WN-S EUROPE BLUE D102 HM-437WN-H EUROPE...
- Page 21 M2x6 : N86-2006-48 φ2.6x10 : N89-2610-48 AM ANT C N 2 02 M3x6 : N86-3006-48 φ2.6x8 : N89-2608-48 φ3x10 : N89-3010-48 φ2.6x6 : N89-2606-48 SPEAKERS φ3x12 : N89-3012-48 CN 8 0 2 φ3x8 : N89-3008-48 SW100 POWER TUNER SW107 LCD101 SW101 band TAPE...
- 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 ✽ 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 26 ✽ 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 27 ✽ 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.
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Page 28: Cassette Mechanism
✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. HOW TO READ THE PARTS LIST Teile ohne Parts No. werden nicht geliefert. ABBREVIATION OF MODEL AND MASS Add- Desti- Ref. -
Page 29: Specifications
Tuning frequency range Notes: ......... 531 kHz ~ 1,602 kHz • KENWOOD follows a policy of continuous advance- ments in development. For this reason specifica-tions may be changed without notice. CD player section Sufficient performance may not be exhibited at ex- •...