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Instruction Manual
POWER AMPLIFIER
KAC-849
SERVICE MANUAL
FILTER
OPERATION
A.CH
B.CH
BASS BOOST(B.CH)
A.CH
B.CH
OFF
OFF
OFF
ON
STEREO
MONO(Lch)
STEREO
MONO(Lch)
LPF
LPF
HPF
HPF
1
1
80
80
150
150
100
100
100
100
2
0.5
2
0.5
80
80
GND
3
3
0.3
0.3
150
150
4
4
50
LPF
200
50
LPF
200
(MIN)5
0.2(MAX)
(MIN)5
0.2(MAX)
50
HPF
200
50
HPF
200
A.CH
B.CH
A.CH
B.CH
INPUT SENSITIVITY(V)
FILTER FREQUENCY(Hz)
© 2001-3 PRINTED IN KOREA
B51-7762-00 (K) 3579
LINE IN
LINE OUT
INPUT SELECTOR
+
A
B
A
B
A
B
A
L
SPEAKER LEVEL INPUT
A
R
B
L
R
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Summary of Contents for Kenwood KAC-849
- Page 1 POWER AMPLIFIER KAC-849 SERVICE MANUAL © 2001-3 PRINTED IN KOREA B51-7762-00 (K) 3579 FILTER OPERATION LINE IN LINE OUT A.CH B.CH INPUT SELECTOR BASS BOOST(B.CH) A.CH B.CH STEREO MONO(Lch) STEREO MONO(Lch) SPEAKER LEVEL INPUT (MIN)5 0.2(MAX) (MIN)5 0.2(MAX) A.CH B.CH A.CH...
- Page 2 KAC-849 ADJUSTMENT INPUT OUTPUT RECEIVER ALIGNMENT ALIGN ITEM FIG. SETTINGS SETTINGS SETTINGS POINTS Connect a cassette receiver or CD receiver. (Normal) Connect a DC VR5 (L ch) 2.5mV voltmeter VR6 (R ch) IDEL between TP1/TP2 VOLUME : 0 CURRENT and J3 (SP.OUT,...
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Page 3: Pc Board (Component Side View)
PC BOARD (Component side view) AUDIO UNIT X09-5370-10 A/2 (KAC-749S) X09-5390-10 A/2 (KAC-849) (J74-1196-21) (X09-) Ref. No. Add. Ref. No. Add. Q116 Q110 Q118 R122 R218 G D S Q101 W262 R220 R222 W184 W228 C112 W104 Q102 W275 R219... - Page 4 PC BOARD (Foil side view) AUDIO UNIT X09-5370-10 A/2 (KAC-749S) X09-5390-10 A/2 (KAC-849) (J74-1196-21) (X09-) Ref. No. Add. Ref. No. Add. Q118 Q110 Q116 R122 R218 W262 R220 W228 W184 W104 R222 C112 Q101 W275 R184 R219 W229 W185 W105...
- Page 5 R169 2.7K 253,254,265,266 215,216 217,218 61-64 KAC-749S 70-10 22 (1/2W) 2SC5100 LB 2SA1908 LB 3900u32 B30-1460-05 L19-0702-05 ∗ ∗ KAC-849 90-10 33 (1/2W) 2SC5101 LB 2SA1909 LB 4700u35 E40-3246-05 B30-1613-05 L19-0701-05 R171 R177 Q111 2.7K AUDIO UNIT (X09-53xx-xx) (A/2) ∗...
- Page 6 R+ (B) : RD10JS (B) ∗ 10 1/2W 0.047 R284 ∗ : FML22S ∗ Q211-214 : FML22R ∗ Q216 D42,43 : MA3056WA DRIVE CLASS-B STAGE Q212 SIGNAL LINE Q215-218 GND LINE FINAL CLASS-B STAGE B LINE B LINE KAC-849 KAC-849 (J,E,K,M)
-
Page 7: Exploded View
KAC-849 EXPLODED VIEW (X09-) (X09-) (X09-) (A/2) φ3x6 (BLK) : N89-3006-45 φ3x8 : N89-3008-46 φ3x12 : N87-3012-46 φ3x13 (BLK) : N83-3013-45 φ2.6x10 : N09-4382-05 VR2 VR1 VR4 VR3 φ3x10 (BLK) : N80-3010-45 S6 S2 S1 S4 S3 S5 M4x8 (BLK) : N09-4026-05 φ2.6x6... -
Page 8: Parts List
KAC-849 PARTS LIST ✽ New Parts Parts without Part No. are not supplied. Desti- Desti- Ref. No. Parts No. Description Ref. No. Parts No. Description nation nation C17 -24 CF92FV1H222J MF-C 2200PF KAC-849 CE04DW0J101M ELECTRO 100UF 6.3WV 3B ✽ A21-4089-02... - Page 9 KAC-849 PARTS LIST ✽ New Parts Parts without Part No. are not supplied. Desti- Desti- Ref. No. Parts No. Description Ref. No. Parts No. Description nation nation ✽ CK45FB1H121K C261,262 CERAMIC 120PF RK73GB1J103J CHIP R 1/16W C263,264 CE04DW1V100M ELECTRO 10UF...
- Page 10 KAC-849 PARTS LIST ✽ New Parts Parts without Part No. are not supplied. Desti- Desti- Ref. No. Parts No. Description Ref. No. Parts No. Description nation nation R229-234 RK73GB1J103J CHIP R 1/16W D18 ,19 RD16JS(B) ZENER DIODE R235,236 RK73GB1J302J CHIP R 3.0K...
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Page 11: Specifications
KAC-849 SPECIFICATIONS Audio Section Rated Power Output (4 Ω) A, B Channel (20-20KHz, 0.08% THD)................50W x 4 A, B Channel (DIN45324, +B=14.4V) ................50W x 4 Rated Power Output (2 Ω) A, B Channel (1KHz, 0.8% THD) ..................75W x 4 Bridged Power Output (4 Ω, 1KHz, 0.8% THD) ..............150W x 2 Max Power Output (4 Ω, Normal) ..................100W x 4...
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