Kenwood KDC-BT648U User Manual

This product uses Lead Free solder.
This product complies with the
RoHS directive for the European market.
PbF
© 2011-4 PRINTED IN JA PAN
B53-0844-00
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N
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SERVICE MANUAL
KDC-348U/4751SD
KDC-BT41U/BT648U
KDC-U4549/U4549SD/U549BT
KDC-X395/X695
CD RECEIVER
TDF SPARE-PANEL
MAIN UNIT NAME TDF PARTS No. TDF NAME
KDC-348U Y33-3490-11 TDF-113D
KDC-4751SD Y33-3482-73 TDF-4751SD
KDC-BT41U
Y33-3482-71 TDF-BT41U
KDC-BT648U
KDC-U4549 Y33-3490-21 TDF-U4549
KDC-U4549SD Y33-3480-22 TDF-U4549SD
KDC-U549BT Y33-3480-21 TDF-U549BT
KDC-X395 Y33-3490-10 TDF-113DX
KDC-X695 Y33-3480-11 TDF-116DX
KDC-4751SD : Panel assy (A64-5245-02)
Y33-3480-10 TDF-BT116D
After replacing E2PROM (IC203 on X34), tuner setting adjustment is needed.
The adjustment is that to perform the “TUNER Setting Adjustment Mode” (Page 13).
Tuner setting adjustment after replacing E2PROM
Mounting hardware assy
(J22-2049-03)
Lever
(D10-7139-04) x2
* DC cord
(E30-6933-05)
* Screw set
(N99-1757-15)
* Carrying case
(W01-xxxx-xx)
* DC cord
(E30-6934-05)
* Tap screw (2x8)
(N80-2008-48)
* Plastic cabinet assy
(A02-2757-13)
* Remote controller assy (RC-405)
(A70-2104-05)
* Trim plate
(xxx-xxxx-xx)
* Microphone (3m)
(W01-1768-15)
* Depends on the model. Refer to the parts list.
KDC-X695 : Panel assy (A64-5241-12)
KDC-BT648U : Panel assy (A64-5240-02)
KDC-U4549SD : Panel assy (A64-5246-12)
KDC-U549BT : Panel assy (A64-5244-12)
KDC-BT41U : Panel assy (A64-5242-12)

Kenwood KDC-BT648U Specifications

General

Type	Car Receiver
Brand	Kenwood
Model	KDC-BT648U
Bluetooth	Yes
USB Port	Yes
Aux Input	Yes
CD Player	Yes
AM/FM Tuner	Yes
Display Type	LCD
Detachable Face	Yes
Remote Control	Yes
Built-in Amplifier	Yes
Preamp Voltage	4 Volts
Subwoofer Output	Yes
EQ	13-Band Graphic EQ
iPod/iPhone Compatibility	Yes
Android Compatibility	Yes
Steering Wheel Control Compatible	Yes
RMS Power Output	22 watts x 4 channels
Max Power Output	50 watts x 4 channels
Preamp Outputs	3 (Front/Rear/Subwoofer)
Compatible Audio Formats	MP3, WMA, AAC
Display Color	Variable Color

Summary

System Diagrams

Electric Unit Block Diagram

Shows the electrical connections and components of the main unit.

CD Player Unit Block Diagram

Component and Terminal Descriptions

Microcomputer Terminal Descriptions

Details the pins and functions of the system microcomputer (IC201).

Test Modes and Operations

Entering and Releasing Test Modes

Instructions for accessing and exiting various diagnostic test modes.

Production Test Mode Operations

Service Test Mode Operations

Procedure for entering and operating the service test mode.

DC Error Information Mode

Forced Update Mode

Mechanical and Parts Information

Parts List - Electric Unit

Comprehensive list of parts for the electric unit (X34-696x-xx).

Parts List - Mechanism Assembly