Kenwood KRC-225 Service Manual page 2

(X14-)
AM BPF
FM BPF
A1
RF GND
IC1
FM ANT
AM ANT
Q200,201
RF GND
FM+B
FM+B FM+B
Q202,203
AM+B
AM+B
AM+B
OSC GND
OSC GND
OSC GND
OSC GND
VT
PLL +B
IFC OUT
SDA
SCL
DIG GND
VDD 5V 5V 8V
IF2 GND
PLL DATA
IF2 +B
PLL CLK
AUDIO OUT
SD SD
S-METER S-METER
IF1+B
FM: 400mV
IF1 GND
AM: 170mV
TAPE MECHA.
Q260,261
MOTOR SW
MAIN
M
IC5
EQ. AMP.
Lch
L
COM
PACK IN TAPE
Rch R
FWD
8V
REV
(X16-)
T-MUTE
(FF/REW)
Lch IC1
PLAY
HEAD
Rch
ED1
LCD
SDA
SCL
BEEP
AMP. STBY
SYSTEM MI-COM SVR
AMP. MUTE
MUTE
ANT CON
ACC DET
B.U. DET
SW5V
ILL
P CON
B.U.5V
B.U.
B.U.5V
Q320
55.6mV
PAN 5V
4
LCD DRIVER
6
5
Q1
KEY PAN IN SW RST SW
IC2
Lch
Rch
AM
MPX
OUT LF
LEVEL
MP IN
E-VOL.
N.C.MPX
CH ISO AMP
OUT RF
OUT LR
SDA
SCL
OUT RR
IC3 Q150,153
MUTE
BU5V
Q370,371
Q53
SW5V SW 5V
BU5V
Q301
KRC-225/235
RST
Q54-57
8V
COM +B
Q350-353
Q58-61
ILLUMI.
Q50
Q51,52
B.U.5V
B.U.5V
KRC-235,265/S
J4
8
CD/MD
CHANGER
Lch IC4 ,Q151
Rch
POWER IC
8V
B.U.
1200mV
STBY
SVR
MUTE
AC GND (BEEP)
Q450,451
J5
PRE
MUTE
J2
FM :1781mV
KRC-265/S
AM :546mV
TAPE :1681mV
CD/MD-CH :3529mV
ANT-CONT.
ANT-CONT.
P-CONT.
P-CONT.
/ANT-CONT.
P-CONT.
B.U. DET. B.U.
ACC. DET.
ACC
J2
SP OUT
FRONT Lch
FRONT Rch
REAR Lch
REAR Rch
REAR
PRE OUT
1 Lch
2 Rch