Kenwood MA100 & 300 free download

File name Kenwood-MA100_300 pwramp.pdf

STEREO POWER AMPLIFIER M-A100/A300 SERVICE MANUAL © 1997-6/B51-5321-00 (K/K) 3668 Knob (K27-2211-04) Escutcheon * (B07-) Indicator (B12-0308-04) Dressing panel * (A21-) POWER POWER AMPLIFIER -ON ­OFF Foot x2 * (J02-) Panel * (A60-) Rectangular receptacle (E58-0018-05) Metallic cabinet (A01-3429-01) Power cord bushing (J42-0083-05) AC power cord * (E30-) CONNECT WITH AV CONTROL CENTER SUB FRONT SURROUND WOOFER CENTER SURROUND FRONT UNSWITCHED + R R SW + (6-16) C L L (6-16) SPEAKERS SPEAKERS Lock terminal board (E70-0046-05) Look terminal board (E70-0046-05) AC outlet * (E03-) Illustration is M-A300. * Refer to parts list on page 16. 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. M-A100/A300 CONTENTS / ACCESSORIES Contents CONTENTS / ACCESSORIES ...2 DISASSEMBLY FOR REPAIR...3 ADJUSTMENT ...4 PC BOARD ...5 SCHEMATIC DIAGRAM ...9 EXPLODED VIEW ...15 PARTS LIST...16 SPECIFICATIONS ...21 Accessories Parallel cord ...(1) (E30-2857-05) AC plug adaptor ...(1) (E03-0115-05) Use to adapt the plug on the power card to the shape of the wall outlet. (Accessory only for regions where use is necessary.) 2 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. 1 x3 2 1 1 x2 ... 1 x2 1 x2 1 x2 1 1 2 1 x2 1 2 3 M-A100/A300 ADJUSTMENT No. ITEM INPUT SETTINGS OUTPUT SETTING TUNER SETTINGS ALIGNMENT POINTS ALIGN FOR FIG. AUDIO SECTION (M-A100) Connect a DC voltmeter across CN11(L) CN12(R) CN15(CENTER) CN16(SURROUND) (X07-) q1 r IDLE CURRENT | Volume : 0 VR1(L) VR2(R) VR5(CENTER) VR6 (SURROUND) (X07-) (L, R) 17.6mV (CENTER, SURROUND) 13.2mV AUDIO SECTION (M-A300) Connect a DC voltmeter across CN11(L) CN12(R) CN13(CENTER) CN14(SW) CN15(SL) CN16(SR) (X07-) q1 r IDLE CURRENT | Volume : 0 VR1(L) VR2(R) (L, R) VR3(CENTER) 17.6mV VR4(SW) (CENTER, SW, SL, VR5(SL) SR) 13.2mV VR6(SR) (X07-) Turn on the unit for 5minutes before adjustment. 4 A B C D E F G H I J PC BOARD(Component side view) 1 2 3 4 5 6 7 Refer to the schematic diagram for the value of resistors and capacitors. 5 6 K L M N O P Q R S T PC BOARD(Component side view) 1 2 3 4 5 6 7 7 8 Refer to the schematic diagram for the value of resistors and capacitors. A B C D (X11-37XX-XX) (A/4) E F G H I (X11- ) (B/4) J K L M N X07-A/4 -CN1 O R55 D2 1/4W 2