Kenwood KM 106 Service Manual

Page 1

KM-W106 KENWOOD

SERVICE MANUAL

987-2 PRINTED IN JAPAN
851-3151-00 (o) 1606

Meiailic cabinet Pane! ass'y
(A01-1482-01 J (A20»5174-02)

KENWOOD inn-r: a?»

in s: u n n u n
u 1| UH 1min

Knob ass'y (Button) Phone jack (3P) Knob (Button) Knob (Button) Foot (FH
(K292001434) (EH-018205) (K27~D742-14) x 2 (K27-1264-04) (J02-0179-05)

AC outlet Power cord bushing AC power cord
(E034 (J42-0083-05) (530-)

w m.
52mm»

Foot (L)

OZ-0129435)
Phono jack (2") Lock terminal board (6P) Slide SWitch Siide switch
(E13 0229-05) (E20-0823-05) (3312113435) (531208305)

*Refer to parts list on page 10.
Note : Specifications is written on page 4.

Page 2

KM-106

BLOCK DIAGRAM/CIRCUIT DESCRIPTION

BLOCK LEVEL DIAGRAM

AMP
K1 $2 SPEAKERS OUT
PEAKER -0 A
INPUT 9/0- gELECTOI: 3 8
RE LAY .
IC1 SI
03 . 32 POWER
LEVEL
PROTECTION METER
MUTING
.CL
; X0.1 x1
/ CIRCUIT DESCRIPTION
Description of Components
POWER AMPLIFIER (XO7-227X-XXI
Components Application/function Opention/conditioulcompatibility
01~4 Initial stage differential amplifier Low noise.
QS~8 2nd stage differential amplifier
09,10 3rd stage amplifier Class A cascade current amplifier,
011,12 3rd stage amplifier Class A cascade voltage amplifier,
013, 14 Bias temperature compensation
015~18 Class 8 driver
O19~22 Power amplifier
Q23~30 Current protection
031, 32 Input muting
033 Relay driver IC Current protection. -
(134 Constant voltage control
035, 36 Muting driver
037~40 LE D driver ' 1'

Page 3

ADJUSTMENT/REG LAG E/ABG LEICH

KM-106 KM-106

ADJUSTMENT
INPUT OUTPUT AMPLIFIER ALIGNMENT
No, ITEM SETTINGS SETTINGS SETTINGS POINTS ALIGN FOR FIG.
Connect a DC
IDLE voltmeter across Vlll (L)
1 CURRENT - CPI (L) VOLUME: 0 VII? (R) 9~18mV (a)
CPZ (ll)
REGLAGE
REGLAGE DE REGLAGE DE REGLAGE DE POINS
N ITEM L' ENTREE LII SOKTIE L' NMPLIFICATEUR L' ALIGNEMENT ALIGNER POUR FIG.
Connecter un
COURANT DE voltmétre :18 CC sur VIII (G)
I POLARISATION 7 CH (G) VOLUME: 0 VIII (D) 9~18mV (a)
cm (1))
ABGLEICH
EINGNNGSA AUSGMIGSV VORSTARNER ABGLEICH-
NR. GEGENSTAND EINSTELLUNG EINSTELLUNG EINSTELLUNG PUNKTE ABGLEICIIEN FUN ABE.
Einen
GIeichspannungs-
messer Uher VRl (L)
l LEERLAIIISTROM - CPl (L) VOLUME: 0 VRZ (R) E~18mV (a)
CPZ (R)

anschliesen.

Rated Power Output

125 watts per channel minimum RMS, both
channels driven, at 8 ohms from 20 Hz to
20,000 Hz with no more than 0.03% total har-

monic distortion.

SPECIFICATIONS

Both channels driven (Except U.S.A. and Canada)

(8 ohms, 1 kHl)...
(4 ohms, 1 kHz)...

135W+135W
110W+110W

Music Power Output (8 ohms)
(Except USA and Canada) .......... 250 W + 250 W

Total Harmonic Distortion

20 Hz to 20.000 Hz... 03% at rated power into
ohms
0.015% at 1/2 rated power
into 8 ohms
1 kH: .................................. 0.002% at 1/2 rated power
into 8 ohms
Intermodulation Distortion
[60 Hz:7 kHz=4:1) .................. 0.002% at rated power into
8 ohms
Frequency Response ................. 5 Hz to 200 kHz, + 0, - 3 dB
Power Bandwidth
(0.2 96 THD, 8 ohms) 10 Hz to 50 kHz
Signal-to-Noiae Ratio .1 20 dB
Damping Factor ..... .35 at 50 Hz

General

Power Consumption ................. 4 A (USA and Canada)
240 W (Others)

AC Outlets .............................. Switched 2, Unswitched 1
(Except some area)

Dimensions ............................. W 420 mm (16-9116)
H 123 mm (4-13/16")
D 269 mm (10-9/15")

Weight (Nat) ........................ 7.9 kg (17.4 lb)

Note :

We follow a policy of continuous advancements in developments.

For this reason specifications may be changed without notice.