File name Kenwood-KMDX92 car minidisk rec.pdfMD RECEIVER
KMD-PS971R/X92
SERVICE MANUAL
© 2000-7 PRINTED IN KOREA B51-7652-00 (K) 3129
Refer to the service manual "X92-3390-00,0-01_X92-3560-00,X92-3580-00" (B51-7461-10) for MECHANISM ASSY's information.
KMD-PS971R (E)
KMD-PS971R
DISP
KMD-X92 (K)
KMD-X92
DISP
The following reference numbers with accessory parts are the same reference numbers used on EXPLODED VIEW and PARTS LIST.
215 291 RM1
272
797
265 296 224 225 266
221 222
292 261
201 216
267 DC1
40%
KMD-PS971R/X92
NOISE
RDCK RDDA QUAL
SDA SCL
PANEL RST SC REQ MC REQ MC CLK SC DATA
SRM DET SRM SW2 SRM SUB+ SRM SUB-
SRM SW1
MD+B MD/SRM
RESET
2
A1 TUNER UNIT L5,Q48-51 COM+B FM+B AM+B
SW5V 400mV (KMD-X92) 213mV (KMD-PS971R) 160mV A8V
IC2
FM AM
IC5 SYSTEM E's HPF&LPF SW Q34-37,53,54 AUDIO MUTE SW IC15,16,18
+B
CN1 PRE OUT
1200mV
PRE OUT AMPLIFIER
-B
RDS OUT S-METER PLL CE PLL DATA PLL CLK
ELECTRIC VOLUME/ CH NOISE CANCELER/ MULTIPLEXER
MD
Q30 AUDIO MUTE DRIVER
MODE MD FM AM CH KMD-X92 KMD-PS971R 4500mV 4500mV 2250mV 1715mV 750mV 1069mV 4500mV 4500mV
SW5V
FM+B
CN5 MD
SERVO A8V BU5V M SCL M SDA A MUTE M RST M STOP LOS-SW EJE-SW LOE-SW EJECT LOAD
IC17
RDS DECODER
IC19
NOISE DETECTION AMPLIFIER EEPROM IC7
PRE MUTE P MUTE MUTE
IC11 SPECTRUM ANALYZER & AGC AMPLIFIER
IC4 POWER IC J1 SP-OUT
BLOCK DIAGRAM
Q58
BU5V
EXTERNAL AMPLIFIER CONTROL Q12 DIMMER DETECTION SYSTEM u-COM D6 PHONE Q29 ACC DETECTION Q21,22 Q3
PANEL 5V
EXT. CONT
CN4 CH
BACK UP RST REQ C CLK DATA H CH-CON REQ H DATA C 1200mV
ILLUMINAITION
PHONE
ACC Q1,2 BU5V AVR Q23-26 IC20 MD/SRM SWITCH REGULATOR P CON. SW P-CON P-ANT. SW
5VSW Q28 B.U. DETECTION
P-ANT
Q59
BU 5V
PANEL SW
MUTE DRIVER
IC6 RESET
PH1 PHOTO DETECTION
CN7 SRM MECHA
IC9 MOTOR DRIVER
BACK UP
IC14 RESET SW SPE-ANA BPF REMO KEY MATRIX PANEL u-COM G/R SW
+B -B
DC/DC CONVERTER IC3 8V AVR
Q5,6 P.ON 14V SW
PANEL LOCK SW
VFD
FL+B FAC
DC/DC BOX
DC/DC REG
KMD-PS971R/X92 (E/K)
KMD-PS971R/X92
COMPONENT DESCRIPTION
SWITCH UNIT (X13-9710-10)
REF.
No.
Q1 Q2 Q3 Q5 Q6,7 Q8
FUNCTION CONTROL SW BETWEEN ED1 to IC1 REMOTE CONTROLLER POWER SW BRIGHTNESS CONTROL CONTROL SW BETWEEN ED1 to IC1 ILLUMINATION SW CONTROL SW BETWEEN ED1 to IC1
OPERATION Works when Q5's base level comes "H". Works when the base level comes "L" during power on. Adjusts brightness with pulse width. Works when the base level comes "H". Make illumination-on when the base levels comes "H". Works when Q5's base level comes "H".
ELECTRIC UNIT (X25-848x-xx)
REF. No. Q3 Q4 Q5,6 Q8-11 Q12 5V SW AUDIO 8V AVR P.ON 14V SW ILLUMINATION SW DIMMER DETECTION FUNCTION OPERATION Works when the base level comes "L". Works when Q56's base level comes "H". Work when the base levels come "H". Works when Q9's base level comes "H". Works when the base level comes "H" during illumination comes on. Work when Q14's base level comes "H". Work when Q22's base level "H" during FM or AM signal is received. Works when Q26's base level comes "H". Work when the P-CON. output volume l |