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KENWOOD KRC289
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of KENWOOD KRC289 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 3 (click to view)
KRC-19A/G,289
COMPONENT DESCRIPTION
SWITCH UNIT(X13-965X-XX)
Ref.No. IC1 Q Component Name LC75853E DTA114EK or UN2111 Application/Function LCD driver with key-matrix Key-matrix permission SW Operation/Condition/Compatibility Ready on key-matrix

SYNTHESIZER UNIT(X14-6570-2X)
Ref.No. IC1 IC2 IC3 IC4 IC5 Q50 Q51 Q52 Q53 Q54 Q55 Q56 Q57 Q58 Q59 Q60 Q61 Q150 Q151 Q153 Q200 Q201 Q202 Q203 Q260 Q261 Q301 Q320 Q350 Q351 Q352 Q353 Q370 Q371 Q450 Q451 Component Name LC72366-9592 TDA7461ND HD74HC27FP TDA7384A LA3161 2SC2412K or 2SD601A 2SB1443 2SC2412K or 2SD601A DTA114YK DTC144EK or UN2213 DTA124EK or UN2112 2SB1548(P) or 2SB1565(E,F) or 2SB1655(E,F) 2SC2412K or 2SD601A DTC144EK or UN2213 DTA124EK or UN2112 Application/Function System MI-COM. E-VOL. & N.C. MPX Mute logic Power IC Equalizer amplifier BACK-UP detection (Momentary power down detection) SW BACK-UP 5V AVR P.ON 5V SW COM+B SW COM+B AVR Operation/Condition/Compatibility System control Controls sound volume. Selects each source. 3-input NOR gate x 3 Amplifies power so that the speaker can drive audio signal. Equalizer amplifier for cassette tape sound While BACK-UP is added, a base becomes Hi, and Q50 is turned on. While BACK-UP is added, AVR outputs +5V. Inverted Darlington connection. While a base becomes Lo, Q53 is turned on. Q55 is turned on while Q54's base becomes Hi. Works during POWER ON mode. Q56 is turned on while Q57's base becomes Hi. Inverted Darlington connection. Q59 is turned on while Q58's base becomes Hi. Works during POWER ON mode with a panel attached to the set. Q60 is turned on while Q61's base becomes Hi. Inverted Darlington connection.

ILLUMINATION +B SW

2SB1548(P) or 2SB1565(E,F) or 2SB1655(E,F) ILLUMINATION +B DRIVER 2SC2412K or 2SD601A DTC124EK or UN2212 DTC114YK or UN2214 DTA124EK or UN2112 DTC124EK or UN2212 2SB1277(Q,R) DTC124EK or UN2212 2SB1277(Q,R) DTC114YK or UN2214 2SB1443 DTA144EK or UN2213 2SA1037K 2SB1277(Q,R) 2SA1037K DTA124EK or UN2112 DTC114YK or UN2214 2SB1277(Q,R) DTC114YK or UN2214 DTC143TK or UN2216 DTC143TK or UN2216

When BACK-UP detection SW or CHANGER ELECTRIC VOLUME MUTE SW RESET SW or MI-COM.'s mute works, a base becomes Hi, and Q150 is turned on. When POWER IC RESET is activated, a base SVR DISCHARGE SW becomes Hi, Q151 is turned on. When BACK-UP detection SW or CHANGER PRE OUT MUTE DRIVER RESET SW or MI-COM.'s mute works, a base becomes Lo, and Q153 is turned on. FM +B SW Q201 is turned on when Q200's base becomes Hi. FM +B DRIVER Works during FM reception mode. AM +B SW Q203 is turned on when Q202's base becomes Hi. AM +B DRIVER Works during AM reception mode. MOTOR +B SW Q261 is turned on when Q260's base becomes Hi. MOTOR +B DRIVER Works during TAPE mode. CHANGER RESET SW When a base becomes Lo, Q301 is turned on. While a panel is attached to the set, PANEL 5V SW a base becomes Lo, and Q320 is turned on. P-CON. DRIVER Q350 is turned on when Q353's base becomes Hi. Works when P-CON is being P-CON. PROTECTION SW short-circuited on GND. P-CON. PROTECTION Inhibits protection SW function when P-CON INHIBIT SW works momentary. Q353 is turned on when a base becomes Hi. P-CON. SW Works during POWER ON mode. ANT-CON. DRIVER Q370 is turned on when Q371's base becomes Hi. ANT-CON. SW Works during TUNER mode. When BACK-UP detection SW or CHANGER PRE OUT MUTE SW(R ch.) RESET SW or MI-COM.'s mute works, a base becomes Hi, and Q450,451 are turned on. PRE OUT MUTE SW(L ch.)

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