Kenwood CB 9 Service Manual

Page 1

554235?) ggIEQAMPLIFIER/TUNER KENWOOD
C-BQ

SERVICE MANUAL
(U D-901/951 M) (9 1993.5 PRINTED IN JAPAN

851-4726-00 (S) 4187

Knob Metallic cabinet Knob Knob From Pane) Knob (VOLUME)
(K297572904) {A01 3062-21} (K296778704) (K29-5730-O4) (A6070405~02) (K295727704)

. Miniatute phone jack Knob Front 9'355
(E11 0254-05) (K29v3741-05) (BTU-196803)
Lock Terminal board Rectangular receptacle
(E204 (E58v0006-05}

W
o @ 0|
(2:; o) @ @ 3)
Phone jack Phone jack Phone jack Phono iack
. (E6370068-15) (E6300464 5 (E63-0047-15) (E6370069/I 5)

Reler to pans list on page 28.

Page 6

C-BQ

TEST MODE
1. Control Object
0 FL ........................... CMIZlQC Equipment bound for M carry out K2 and E1 switch- )
o DSP .................... ........... LC83016 ing by changing over the CH and SP terminals by
0 PLL IC .............................................. LC7218 means of a switch.
. SELECTOR IIIIIII NJU731 1 L, NJu7313L, Tcg274 3. TEST MODE WORKINGS BY SERIAL CODE INPUT
. ELECTRICAL VOL ________________________ TC9213 The operation becomes possible by entering the codes

MCXAT 558 shown below.
,,,,,,,, NJU3711 When the codes shown below are received, the same

VIDEO SELECTOR .
0 Expansion IC ..........
2. Conditions. depending on destination and model COdBS are transmitted.

DiodeSWIDSIIcvanal my Chm, mm, ( I I Initialization by means oi the main unit keys
Ty" 52 CH of D5 mm "m" a" " m" 0 When the AC power cord is plugged in the
J 0 ' ' FM 76.090.0MH1 0!)ka -IO.7MHZ 25kHz
AM sairieozmz 9km +450kHz 9ka electrical outlet while pushing the BGM key,
K'I 'l 0 O FM 87.57iOEMHz IOOkHz +|0.7MHZ 25kHz the equipment IS Inltlalized.
AM 53071610KH1 IOka +450MH1 lOkHz
K2 1 o 1 ' FM 37.5408MH1 100kHz +10.7MHz 25w: ' When the AC power cord IS plugged in the
E | 1 , o :3 ::'$::: gm: :fimz :1: electrical outlet or unplugged from the elec )
AM 53171502kHz 9ka +450kHz 9w; trical outlet during the test mode selected by
H ' 1 i FM 37.5 mm 5W WWI 25" means of the main unit keys or during the test
AM 5314 EOZkHZ 9kH1 +450kHz 9kHz
LW 1532mm: QkHz +450kHz 9ka mode selected by serial communication, the
H WWW AM STEREO "de equipment is initialized.
Meaning of each diode SW (2) POWER ON operation
CHSP ........................................... 50 kHz/m . The POWER turns ON when the AC power
DSO ...................... LW YES/m source is connected while pushing the DUAL
D81 ....... KTYPE WIDE/MW SOUND key. This form of POWER ON oper l
082 ......................................... WIOve-iseas ation is the ordinary model difierent from [he
* ........................................................ Dont care POWER ON operation in the test mode.
NAME DATA PROCESSING
TESTMODE START C27F The test mode starts.
POWER OFF C200 The POWER turns OFF. V-fi
POWER ON C201 The POWER turns ON. _
MOTOR VOL UP C224 The VOL volume turns UP l
MOTOR VOL DOWN C225 The VOL volume turns DOWN
LAC VOL UP C223 The LAC MOTOR VOL turns UP
LAC VOL DOWN C22C The LAC MOTOR VOL turns DOWN »
LAC VOL STOP CZZD The LAC MOTOR VOL STOPS. -._,,.
ALL LIGHT UP OFF C27B The ALL LIT UP mode is canceled.
ALL LIGHT UP ON C27C All displays are lit up.
AMP INITIAL C27D Everything is cleared, and the amplifier is initialized.
TEST TONE OFF CSOC The TEST TONE is tuned OFF.
TEST TONE 0N C3OD The TEST TONE is turned ON. _
EQ OFF C384 The E0 is turned OFF
E0 0N C385 The E0 is turned ON 7
TEST MODE OFF C27E The test mode is turned OFF. )
TAPE REC OUT CHECK 20A5 The TAPE terminal is switched to REC OUT. NOTE: This code is not accepted
TTAPE PALY IN CHECK 2092 The TAPE terminal is switched to PLAY IN _ ggzgnfifgggfg Suwnghzgfgl
TAPE STOP 2093 PLAY REC is canceled. operation. )