Service Manual
Page 1
GRAPHIC EQUALIZER KGC-4042A SERVICE MANUAL REVISED S/No. 10700001~ Panel ass'y (A64-0071-08) C 2001-8 PRINTED IN JAPAN B51-7838-00 (4) 3395 Knob (EQ) (K24-0700-08) Knob (FAD) (K29-5541-08) Trim plate (A21-0474-03) Screw set (N99-1543-08) Bracket (J21-3693-04) Knob (SUB) (K24-0710-08) Metallic cabinet (A01-2568-08) RCA pin cord (OUT, SUB) (E30-3649-08) RCA pin cord (OUT, R) (E30-3648-08) RCA pin cord (OUT, F) (E30-3647-08) RCA pin cord (IN) (E30-3646-08) Power connection cord (E30-3654-08) RCA pin cap (F29-0049-05)
GRAPHIC EQUALIZER KGC-4042A SERVICE MANUAL REVISED S/No. 10700001~ Panel ass'y (A64-0071-08) C 2001-8 PRINTED IN JAPAN B51-7838-00 (4) 3395 Knob (EQ) (K24-0700-08) Knob (FAD) (K29-5541-08) Trim plate (A21-0474-03) Screw set (N99-1543-08) Bracket (J21-3693-04) Knob (SUB) (K24-0710-08) Metallic cabinet (A01-2568-08) RCA pin cord (OUT, SUB) (E30-3649-08) RCA pin cord (OUT, R) (E30-3648-08) RCA pin cord (OUT, F) (E30-3647-08) RCA pin cord (IN) (E30-3646-08) Power connection cord (E30-3654-08) RCA pin cap (F29-0049-05)
Service Manual
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FILTER IC2 NJM2068MD BUFFER A.M.P SWITCHING TR Q8,9 2SC3327-A MUTE Q10,11 TR 2SC3327-A Lch FRONT Rch Lch REAR Rch BLOCK DIAGRAM ACC GND P. C SW3 LAMP1,2 (OR) LAMP3,4 (GR) LED1-5 Q1 2SC4640 Q2 2SC1741A +B Q3 2SC2060 Q4 DTA114ES Q5 DTC114ES POWER SUPPLY Q6,7 2SA1782 MUTE DRIVE LED6,7 METER LED SUPPLY SUB WOOFER ON OFF SW2 IC3 NJM2068MD L.P. KGC-4042A 2 Lch INPUT Rch IC4 NJM2060M ISO IC5 UPC4570G2 EQ Q201-205 2SC2712 Lch Q251-255 2SC2712 Rch EQ B.P.F EQ B.P.F EQ SW1 OFF ON H.P. GND FILTER 30~150Hz Lch SUB Rch Q12 MUTE 2SC3327-A PRE.
FILTER IC2 NJM2068MD BUFFER A.M.P SWITCHING TR Q8,9 2SC3327-A MUTE Q10,11 TR 2SC3327-A Lch FRONT Rch Lch REAR Rch BLOCK DIAGRAM ACC GND P. C SW3 LAMP1,2 (OR) LAMP3,4 (GR) LED1-5 Q1 2SC4640 Q2 2SC1741A +B Q3 2SC2060 Q4 DTA114ES Q5 DTC114ES POWER SUPPLY Q6,7 2SA1782 MUTE DRIVE LED6,7 METER LED SUPPLY SUB WOOFER ON OFF SW2 IC3 NJM2068MD L.P. KGC-4042A 2 Lch INPUT Rch IC4 NJM2060M ISO IC5 UPC4570G2 EQ Q201-205 2SC2712 Lch Q251-255 2SC2712 Rch EQ B.P.F EQ B.P.F EQ SW1 OFF ON H.P. GND FILTER 30~150Hz Lch SUB Rch Q12 MUTE 2SC3327-A PRE.
Service Manual
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... Refer to the schematic diagram for the values of resistors and capacitors. 4 No. No. E LAMP2 LAMP1 D A B C D PC BOARD (Component side view) ELECTRIC UNIT 1 MAIN PWB E EQ ON/OFF PWB A P.CON GND +B CN15 2 CN3 CN2 (REAR) CN1 (FRONT) 1 4 1 4 1 4 G1 A (SUB.W) C81 CN4 1 4 E Q12 C83 EB Q3 C84 ...CN9 21 VR1 F R CN10 1 61 R104 CN11 CN12 61 61 4 CN13 Q9 B SUB 6 Ref. EQ ON 3 SW2 C B LAMP3 LAMP4 F G H I J PC BOARD (Foil side view) ELECTRIC UNIT EQ ON/OFF PWB MAIN PWB C150 C101 R51 C51 R54 R4 R53 R3 R55 R5 R201 R21 R17 R67 R204...
... Refer to the schematic diagram for the values of resistors and capacitors. 4 No. No. E LAMP2 LAMP1 D A B C D PC BOARD (Component side view) ELECTRIC UNIT 1 MAIN PWB E EQ ON/OFF PWB A P.CON GND +B CN15 2 CN3 CN2 (REAR) CN1 (FRONT) 1 4 1 4 1 4 G1 A (SUB.W) C81 CN4 1 4 E Q12 C83 EB Q3 C84 ...CN9 21 VR1 F R CN10 1 61 R104 CN11 CN12 61 61 4 CN13 Q9 B SUB 6 Ref. EQ ON 3 SW2 C B LAMP3 LAMP4 F G H I J PC BOARD (Foil side view) ELECTRIC UNIT EQ ON/OFF PWB MAIN PWB C150 C101 R51 C51 R54 R4 R53 R3 R55 R5 R201 R21 R17 R67 R204...
Service Manual
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...10K R21 C3 100u25 3.4V R202 1.5K R201 +B R203 1.5K IC4(2/4) 3.4V 12 14 13 R204 +B C4 22u25 + C5 10u50 R205 + 4.7K 12.6V IC5(1/2) EQ AMP 5.0V 3 8 1 2 3.4V C11 22u25 + 4.7K R206 3 + 1.5K 3.4V 1.5K 4.0V R222 150K C51 C100 C101 C1 470P 0.1 0.1 470P R217 ... current or resistance measurements shall be carried out (exposed parts are as measured with a high impedance voltmeter. parts (refer to the customer. KGC-4042A Indicates safety critical components. supply circuit) before the appliance is returned to parts list). CON 3 BATT 2 R81 R82 + 10K 4.7K ...
...10K R21 C3 100u25 3.4V R202 1.5K R201 +B R203 1.5K IC4(2/4) 3.4V 12 14 13 R204 +B C4 22u25 + C5 10u50 R205 + 4.7K 12.6V IC5(1/2) EQ AMP 5.0V 3 8 1 2 3.4V C11 22u25 + 4.7K R206 3 + 1.5K 3.4V 1.5K 4.0V R222 150K C51 C100 C101 C1 470P 0.1 0.1 470P R217 ... current or resistance measurements shall be carried out (exposed parts are as measured with a high impedance voltmeter. parts (refer to the customer. KGC-4042A Indicates safety critical components. supply circuit) before the appliance is returned to parts list). CON 3 BATT 2 R81 R82 + 10K 4.7K ...
Service Manual
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B D 721 723 C F1 731 D 22 20 18 17 16 15 3 702 25 Parts with exploded view numbers larger than 700 are not supplied. A φ2.6x5 (F-Tap) BLK : N85-2605-45 B φ3x5 (Bi-Tap) BLK : N86-3005-45 C φ3x4 (Bi-Tap) : N09-2630-08 D φ3x4.5 RIVET : N29-0053-05 7 A 24x2 EXPLODED VIEW B KGC-4042A B 30 B 1 4 50 200 800 3.2K 12.8K FREQ LEVEL VR2-1 VR2-2 VR2-3 VR2-4 VR2-5 VR2-6 VR2-7 LED1 LED2 LED3 LED4 LED5 LED6 LED7 LAMP4 23 LAMP2 705 26 A 2 704 706 28x7 A LAMP1 LAMP3 23 FADER 3 VR1 SUB C SW1 722 27 1 B ILLUM 724 SW3 SW2 EQ.
B D 721 723 C F1 731 D 22 20 18 17 16 15 3 702 25 Parts with exploded view numbers larger than 700 are not supplied. A φ2.6x5 (F-Tap) BLK : N85-2605-45 B φ3x5 (Bi-Tap) BLK : N86-3005-45 C φ3x4 (Bi-Tap) : N09-2630-08 D φ3x4.5 RIVET : N29-0053-05 7 A 24x2 EXPLODED VIEW B KGC-4042A B 30 B 1 4 50 200 800 3.2K 12.8K FREQ LEVEL VR2-1 VR2-2 VR2-3 VR2-4 VR2-5 VR2-6 VR2-7 LED1 LED2 LED3 LED4 LED5 LED6 LED7 LAMP4 23 LAMP2 705 26 A 2 704 706 28x7 A LAMP1 LAMP3 23 FADER 3 VR1 SUB C SW1 722 27 1 B ILLUM 724 SW3 SW2 EQ.
Service Manual
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...-3693-04 L TYPE HARDWARE FIXTURE 25 3A K29-5541-08 KNOB (FADER) 26 2B K24-0700-08 KNOB (EQ) 27 2A K24-0710-08 KNOB (SUB) 28 2A K29-3501-08 KNOB ASS'Y (GE) 30 1A A... E41-0223-08 ∗ E39-0456-08 WIRING HARNESS PIN ASS'Y WIRING HARNESS indicates safety critical components. KGC-4042A ∗New Parts PARTS LIST Parts without Parts No. Les articles non mentionnes dans le Parts No. Teile... ohane Parts No. AN Ref. No. tion KGC-4042A 1 1B A01-2568-08 METALLIC CABINET 3 2A A64-0071-08 PANEL ASSY 4 1A A21-0474-...
...-3693-04 L TYPE HARDWARE FIXTURE 25 3A K29-5541-08 KNOB (FADER) 26 2B K24-0700-08 KNOB (EQ) 27 2A K24-0710-08 KNOB (SUB) 28 2A K29-3501-08 KNOB ASS'Y (GE) 30 1A A... E41-0223-08 ∗ E39-0456-08 WIRING HARNESS PIN ASS'Y WIRING HARNESS indicates safety critical components. KGC-4042A ∗New Parts PARTS LIST Parts without Parts No. Les articles non mentionnes dans le Parts No. Teile... ohane Parts No. AN Ref. No. tion KGC-4042A 1 1B A01-2568-08 METALLIC CABINET 3 2A A64-0071-08 PANEL ASSY 4 1A A21-0474-...