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STEREO POWER AMPLIFIER
M-A100/A300
SERVICE MANUAL
Knob
(K27-2211-04)
POWER
-ON –OFF
Foot x2 *
(J02-)
Rectangular receptacle
(E58-0018-05)
CONNECT WITH AV
CONTROL CENTER
SUB
FRONT SURROUND
WOOFER
+
-
(6-16 )
R
R
SW
SPEAKERS
Lock terminal board
(E70-0046-05)
How to power on unit only.
Connect a lead wire between P3 (GRY) and fuse holder (CN3 of F2) or (CN10 of F3), then push power sw.
Escutcheon *
Indicator
(B07-)
(B12-0308-04)
POWER AMPLIFIER
Metallic cabinet
(A01-3429-01)
Look terminal board
(E70-0046-05)
© 1997-6/B51-5321-00 (K/K) 3668
Dressing panel *
(A21-)
Panel *
(A60-)
CENTER
SURROUND
FRONT
+
-
(6-16 )
C
L
L
SPEAKERS
Power cord bushing
AC power cord *
(J42-0083-05)
(E30-)
UNSWITCHED
AC outlet *
(E03-)
Illustration is M-A300.
* Refer to parts list on page 16.
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Table of Contents
Related Manuals for Kenwood M-A100
Summary of Contents for Kenwood M-A100
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Page 1: Service Manual
STEREO POWER AMPLIFIER M-A100/A300 SERVICE MANUAL © 1997-6/B51-5321-00 (K/K) 3668 Knob Escutcheon * Indicator Dressing panel * (K27-2211-04) (B07-) (B12-0308-04) (A21-) POWER POWER AMPLIFIER -ON –OFF Foot x2 * Panel * (J02-) (A60-) Rectangular receptacle Metallic cabinet Power cord bushing... -
Page 2: Table Of Contents
M-A100/A300 CONTENTS / ACCESSORIES Contents CONTENTS / ACCESSORIES ........2 SCHEMATIC DIAGRAM ..........9 DISASSEMBLY FOR REPAIR........3 EXPLODED VIEW .............15 ADJUSTMENT .............4 PARTS LIST...............16 PC BOARD ..............5 SPECIFICATIONS .............21 Accessories AC plug adaptor ....(1) Parallel cord ....(1) (E03-0115-05) (E30-2857-05) Use to adapt the plug on the power card to the shape of the wall outlet. -
Page 3: Disassembly For Repair
M-A100/A300 DISASSEMBLY FOR REPAIR 1. Remove the 17 screws (1), then remove main PCB. 2. Stand the set with right side downward, then connect the GND of the PCB (X07) (A/4) and the rear panel and the chassis with 2 alligator clips2. -
Page 4: Adjustment
M-A100/A300 ADJUSTMENT INPUT OUTPUT TUNER ALIGNMENT ITEM ALIGN FOR FIG. SETTINGS SETTING SETTINGS POINTS AUDIO SECTION (M-A100) Connect a DC VR1(L) voltmeter across (L, R) VR2(R) CN11(L) 17.6mV VR5(CENTER) CN12(R) Volume : 0 (CENTER, SUR- ƒIDLE CURRENT q1 r CN15(CENTER) -
Page 5: Pc Board
PC BOARD(Component side view) Refer to the schematic diagram for the value of resistors and capacitors. -
Page 6: Schematic Diagram
PC BOARD(Component side view) Refer to the schematic diagram for the value of resistors and capacitors. - Page 7 X11-3742-92 D204 : RD15ES(B2) or HZS15N(B2) or Q203 : 2SA1048(Y,GR) or 2SA1309A(Q,R) or GENERAL MARKET M GENERAL MARKET X11-3770-22 X11-3770-21 MALAYSIA MALAYSIA MTZJ15(B) or UZ-15BSB 2SA933AS(Q,R) or 2SA1175(F,E) M-A100/A300(K) (1/2) CHINA X11-3773-00 CHINA X11-3773-01 AUSTRALIA X11-3770-71 AUSTRALIA X11-3770-72 M-A100/A300 Y08-5610-10...
- Page 8 MTZJ4.7(B) or UZ-4.7BSB 42.0V FLch : uPC1237HA M-A100 (F09-0118-05) RELAY R105 DRIVE Q105 R135 Q201 M-A100 SP OUTPUT Q117 SPEED L:12V D105 FL, C, 1.1V FAN +B 34.5V SPEED H:24V R123 K,P,M,Y SP OUTPUT (ALL CH) WITH FAN SPEED 1/4W 25.5V...
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Page 9: Exploded View
M-A100/A300 EXPLODED VIEW(UNIT) AC110-120V/ 220-240V~ AC220- AC110- 240V~ 120V~ (D/4) only (C/4) N09-1445-05 N09-3139-05 CONENECT WITH AV ø 2.6x8 N82-2608-46 CONTROL CENTER M4x6 N86-4006-45 X11-3770-22 ø 3x6 N89-3006-45 755x2 ø 3x8 N89-3008-45 ø 3x8 N89-3008-46 SPEAKERS ø 3x10 N89-3010-45 ø 3x18 N89-3018-46 ø... -
Page 10: Parts List
M-A100/A300 PARTS LIST 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. - Page 11 D5SBA20F03 DIODE L : Scandinavia K : USA P : Canada R : Mexico I : Malaysia 100 : M-A100 L : Scandinavia K : USA P : Canada R : Mexico I : Malaysia 100 : M-A100 Y : PX(Far East, Hawaii)
- Page 12 47UF 16WV L : Scandinavia K : USA P : Canada R : Mexico I : Malaysia 100 : M-A100 L : Scandinavia K : USA P : Canada R : Mexico I : Malaysia 100 : M-A100 Y : PX(Far East, Hawaii)
- Page 13 2SA992(F,E) TRANSISTOR L : Scandinavia K : USA P : Canada R : Mexico I : Malaysia 100 : M-A100 L : Scandinavia K : USA P : Canada R : Mexico I : Malaysia 100 : M-A100 Y : PX(Far East, Hawaii)
- Page 14 TRANSISTOR CINX L : Scandinavia K : USA P : Canada R : Mexico I : Malaysia 100 : M-A100 Y : PX(Far East, Hawaii) T : Europe E : Europe G : Germany C : China 300 : M-A300...
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Page 15: Specifications
M-A100/A300 SPECIFICATIONS M-A100 [For other countries] FRONT (1kHz, 1% T.H.D. at 6 Ω).....55 W + 55 W AUDIO section CENTER (1kHz, 1% T.H.D. at 6 Ω).......55 W Effective output power during STEREO operation SURROUND (1kHz, 1% T.H.D. at 3 Ω) ..30 W + 30 W [Except for the U.S.A., Canada and the UK]... -
Page 16: Parts List
SURROUND (1kHz, 1% T.H.D. at 6 Ω) ..55 W + 55 W KENWOOD ELECTRONICS U.K. LIMITED Total harmonic distortion....0.007%(1 kHz, 50W, 6 Ω) KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB., United Kingdom Frequency response KENWOOD ELECTRONICS BENELUX N.V. LINE (FRONT, CENTER, SURROUND)