Kenwood KAC-859 Service Manual
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Kenwood KAC-859 Service Manual

Kenwood KAC-859 Service Manual

Kenwood kac-859 power amplifiers
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See also: Instruction Manual

POWER AMPLIFIER

KAC-859
SERVICE MANUAL
FUSE
(E52-0014-05)
A
B
SCREW TERMINAL
SCREW TERMINAL
BOARD
BOARD
(E70-0828-05)
(E70-0829-05)
L
1
1
2
0.5
2
0.5
3
3
0.3
150Hz
150Hz
0.3
4
4
80Hz
OFF
80Hz
OFF
R
0.2(MAX)
0.2(MAX)
(MIN)5
(MIN)5
A.CH INPUT
B.CH INPUT
SENSITIVITY(V)
SENSITIVITY(V)
A
A
B
A
B
INPUT SELECTOR
PIN JACK
(E63-0849-05)
© 2000-5 PRINTED IN KOREA
B51-7626-00 (K) 3547
A
A
B
B
L
R
SCREW TERMINAL
BOARD
(E70-0821-05)
1
150
100
80
2
0.5
170
3
70
5/4/3 CHANNEL
0.3
POWER AMPLIFIER
4
A
B SUB
0.2(MAX)
200
(MIN)5
50
SUB.CH INPUT
SUB.CH LPF
SENSITIVITY(V)
FREQUENCY(Hz)
INPUT
SUB
SELECTOR
HEAT SINK
(F01-1629-01)
DRESSING PANEL
(A21-4015-02)
DC CORD ASSY
(E30-4341-05)
(J type only)
LEAD TERMINAL SET
(W01-1530-05)
(E type only)
TERMINAL COVER SET
(W01-1515-05)
SCREW SET
(N99-1587-05)
40%

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Summary of Contents for Kenwood KAC-859

  • Page 1: Power Amplifier

    POWER AMPLIFIER KAC-859 SERVICE MANUAL © 2000-5 PRINTED IN KOREA B51-7626-00 (K) 3547 HEAT SINK (F01-1629-01) DRESSING PANEL (A21-4015-02) DC CORD ASSY (E30-4341-05) (J type only) LEAD TERMINAL SET (W01-1530-05) (E type only) TERMINAL COVER SET (W01-1515-05) SCREW TERMINAL FUSE...
  • Page 2 [ LEVEL DIAGRAM ] 80,150,OFF S2-1 MONO AMP IC4 (3/4) Q201,202 MUTE (2/4) IC4 (4/4) 4ch AMP S2-2 (3/4) ISOLATION & FILTER POWER (4/4) (1/4) (2/4) IC3 (3/4) IC3 (4/4) 120mV 21.9V INFRA 15Hz 120W SUB/AB (18dB/oct) Q307 MUTE 50Hz-200Hz KAC-859 (18dB/oct)

  • Page 3: Circuit Description

    KAC-859 CIRCUIT DESCRIPTION SP P-CON Switching Circuit When the SP output from the head unit is con- Circuit operation description When the head unit nected to SP IN, the power can be switched is connected to SP-INN, the DC component in the ON/OFF based on the DC voltage of the SP out- SP output turns Q2 ON through D8 and R16.
  • Page 4 KAC-859 ADJUSTMENT ADJUSTMENT TUNER (RECEIVER) ALIGNMENT ITEM INPUT SETTINGS OUTPUT SETTINGS ALIGN FOR FIG. POINTS SETTINGS Connect a cassette receiver or other receiver. VR101(Lch) Connect a DC voltmeter to VR102(Rch) After sufficient aging IDLE CURRENT CN7/CN8 and J4(SP.OUT, Volume : 0 adjust to 2.0mV...
  • Page 5 PC BOARD (Component side view) PREAMPLIFIER UNIT X08-4080-10 A/2 (J74-1031-11) Ref.No. Address Ref.No. Address Q108 Q109 Q110 R244 R243 Q201 R242 R241 D209 D210 Q202 R141 R143 Q203 C124 Q102 D109 C123 C236 C235 Q204 R142 R255 R256 R257 R258 R352 Q205 C135...
  • Page 6 PC BOARD (Foil side view) PREAMPLIFIER UNIT X08-4080-10 A/2 (J74-1031-11) Ref.No. Address Ref.No. Address Q108 Q109 Q110 R244 R243 R242 R241 Q201 D210 D209 R143 R141 Q202 D109 Q102 C124 C123 Q203 C236 C235 R255 R142 R256 Q204 R258 R257 R352 C135 C136...
  • Page 7 PC BOARD (Component side view) AUDIO UNIT X09-5330-10 (J74-1032-21) Ref.No. Address W172 W111 W142 W152 W209 W205 W112 W143 W153 W238 W206 W241 C301 W113 W144 W154 W192 Q209 W114 W145 W155 W193 R301 W115 W146 W156 W116 W147 W157 W188 W117 W148...
  • Page 8 PC BOARD (Foil side view) AUDIO UNIT X09-5330-10 (J74-1032-21) Ref.No. Address W172 W152 W142 W111 W205 W209 W153 W143 W112 W238 W241 W206 W192 W154 W144 W113 C301 W155 W145 W114 Q209 W193 R301 W156 W146 W115 W157 W147 W116 W188 W158 W148...
  • Page 9 R308 6.8K C307 22P INPUT Q307 -44.5V LEVEL SUB - AB C3 1000P MUTE 220u50 R3 1K -45.2V KAC-859 (K,M,E,J) SIGNAL LINE IC1-3,5 : UPC4574C Q101,102,201,202,307 D1-4 : RD8.2JS(B) (1/2) GND LINE : NJM2058D : 2SC945(A) (Q,P) D101-110,201-210,301-305 Q103-106,203-206,301,302 : 1SS133...
  • Page 10 P.CON OVER DD CON B-CH DET. VOLTAGE SHIELD CASE DD CON DET. R230 Q207-210 PRT DC Q206 R222 POWER PRT OC KAC-859 (K,M,E,J) X08-A/2 5.7V(MUTE) DRIVE -5.1V 1.8K (X08-4080-10) (B/2) (2/2) -0.55V STAGE : UPC494C Q214 -1.2V 4.7K 14.4V Q211-214...

  • Page 11: Exploded View

    4x8 (BLK) : N09-4026-05 2x8 (BLK) : N80-2008-45 2.6x10 : N09-4382-05 3x12 : N87-3012-46 : N88-3012-46 FLAT WASHER : N15-1040-46 : N09-4216-08 : N09-4214-08 : N07-0003-08 M6x12 : N09-4378-05 KAC-859 (K) Parts with exploded numbers larger than 700 are not supplied.

  • Page 12: Parts List

    KAC-859 PARTS LIST ✽ New Parts Parts without Parts No. are not supplied. Dest Dest Ref.No. Parts No. Description Ref.No. Parts No. Description inati inati CE04DW1A101M ELECTRO 100UF 10WV KAC-859 CE04DW1A221M ELECTRO 220UF 10WV 3B ✽ A21-4015-02 CE04NW1V100M ELECTRO DRESSING PANEL...
  • Page 13 KAC-859 PARTS LIST ✽ New Parts Parts without Parts No. are not supplied. Dest Dest Ref.No. Parts No. Ref.No. Parts No. Description Description inati inati C319 CE04DW1V100M ELECTRO R101,102 RD14BB2C102J 10UF 35WV 1.0K 1/6W C320 CF92FV1H102J R103-108 RD14BB2C103J MF-C 1000PF...

  • Page 14: Amplifier Unit(X09-5330-10)

    KAC-859 PARTS LIST ✽ New Parts Parts without Parts No. are not supplied. Dest Dest Ref.No. Parts No. Description Ref.No. Parts No. Description inati inati R312-314 RD14BB2C103J UPC494C 1/6W IC(SWITCHING REGULATOR) R315 RD14BB2C104J Q1 -4 2SC945(A)(Q,P) 100K 1/6W TRANSISTOR R316...
  • Page 15 KAC-859 PARTS LIST ✽ New Parts Parts without Parts No. are not supplied. Dest Dest Ref.No. Parts No. Description Ref.No. Parts No. Description inati inati CN7 ,8 E40-3640-05 R302-345 RD14BB2E471J PIN ASSY (2P) 1/4W ✽ E70-0828-05 SCREW TERMINAL BOARD (3P) ✽...

  • Page 16: Specifications

    Dimensions (W X H X D) .............................290 x 60 x 320 mm (11-7/16 x 2-3/8 x 12-5/8 inch) Weight ....................................5.42kg KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. KENWOOD CORPORATION 14-6, Dogenzaka 1-chome, Shibuya-ku, Tokyo, 150-8501 Japan...

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