Page 1
For such information, please refer to the CD mechanism assembly service manual (X92-4450-0x: B51-7889-00) for Z738. For such information, please refer to the CD mechanism assembly service manual (X92-4590-0x: B51-7933-00) for KDC-X959/Z939, Z838W. Front glass Front glass KDC-X959...
Key illumination Blue SW When a base goes Lo, Q9 is turned on, and key illumination Blue is lit. ELECTRIC UNIT (X25-927X-XX) Ref.No. Component Name Application/Function Operation/Condition/Compatibility UPD703033GFA14 System MI-COM. For KDC-X959/Z939, Z838W UPD703033GFA15 System MI-COM. For Z738 TDA7407 E-VOL. & N.C. MPX M5237ML AVR IC IC is combined with Q4, and it works as the error detection, the Q4's driver.
Page 4
KDC-X959/Z939,Z738,Z838W COMPONENT DESCRIPTION 3 7 63 1515 0 Ref.No. Component Name Application/Function Operation/Condition/Compatibility 2SB1443 A.+10V AVR When Q17's base goes Hi, AVR outputs +10V. 2SC4081 2SA1576A Q18 and Q20 work as a differential amplifier, Q19 works as a driver, 2SC4081 PRE-AMP -9V AVR and -9.3V is supplied to OP AMP.
KDC-X959/Z939,Z738,Z838W MICROCOMPUTER'S TERMINAL DESCRIPTION 3 7 63 1515 0 IC8 (SWITCH UNIT: X16-169X-XX) Pin No. Pin Name Description Processing Operation D14-D8 I/O Data input/output with OEL, SRAM IC and ROM IC PAN3.3VDD Positive power supply connection terminal Connected to 3.3V lines.
Page 6
KDC-X959/Z939,Z738,Z838W MICROCOMPUTER'S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Description Processing Operation Ground connection terminal Connected to GND lines. Not used(N.C.) SARST Reset output to the BPF IC Hi: Reset REMO Data input from the remote control light sensor Not used(N.C.)
Page 7
KDC-X959/Z939,Z738,Z838W MICROCOMPUTER'S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Description Processing Operation IC2 SDA I/O Data input/output with IC2, IC5, and IC25 IC2 SCL I/O Clock input/output with IC2, IC5, and IC25 EVDD Positive power supply connection terminal Connected to BU 5V lines.
Page 8
KDC-X959/Z939,Z738,Z838W MICROCOMPUTER'S TERMINAL DESCRIPTION 3 7 63 1515 0 Pin No. Pin Name Description Processing Operation Lo: During FM seek or AF search, Hi: During FM Noise detection time constant switching terminal reception, Hi: During last FM mode with RDS/...
KDC-X959/Z939,Z738,Z838W TEST MODE 3 7 63 1515 0 1. How to enter the test mode • When the model is equipped the CD mechanism assembly adapted for MP3 or MP3/WMA disc, the While pressing and holding the Preset 1 and Preset 3 keys, mechanism name and version number are displayed reset the unit.
Page 10
KDC-X959/Z939,Z738,Z838W TEST MODE 3 7 63 1515 0 10. Special display when the display is all on Security-related information Pressing the Preset keys while the power is ALL OFF 1. Forced Power ON mode (All models) displays the following information.
PC BOARD (Foil Side View) PC BOARD (Component Side View) 3 7 6 3 1 5 1 5 0 SWITCH UNIT DAUGHTER UNIT DAUGHTER UNIT SWITCH UNIT SWITCH UNIT SWITCH UNIT X16-169X-XX (J74-1336-12) X89-253X-XX (J74-1332-12) X89-253X-XX (J74-1332-12) X16-169X-XX (J74-1336-12) (X16-169X-XX) (X16-169X-XX) MCCLK MCREQ...
KDC-X959/Z939,Z738,Z838W SPECIFICATIONS 3 7 63 1515 0 KDC-X959 (K) KDC-Z939 (M) FM Section FM Section Frequency Range ........87.5MHz-108.0MHz Frequency Range ........87.9MHz-107.9MHz (Frequency Step) ........(200kHz) (Frequency Step) ........(50kHz) Channel Space Selection ...... 50k/200kHz Usable Sensitivity (S/N:26dB) ....0.7µV/75Ω...
Page 26
Installation Size (W) x (H) x (D) ..180mm x 50mm x 159mm Weight .......... 1.4kg 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 KENWOOD SERVICE CORPORATION KENWOOD ELECTRONICS ITALIA S.p.A.