Aiwa FR-A270 Service Manual page 8

SCHEMATIC DIAGRAM-1/2 (A275 MODEL)
ANT1
FM ANT
MAIN C.B
T3
AM IF ADJ
ALARM1
DIA3 RED
DISPLAY
DIA3 RED
CONTROL
ALARM2
COLON
OUT
MIN AF
MIN CD
MIN BG
10MIN
MIN
10MIN
CD
10MIN
BG
10MIN
AF
HRAF
HRCD
HRBG
10HRC
PM
10HRB
AM
10HRAG
JW
JW
12/24H
SELECT
50Hz –
–
60Hz
12H No Mount
0.1
24H JW
L5,TC1
L2,TC2
AM TRACKING ADJ FM TRACKING ADJ
TC1 TC2
PVC1 TUN-CAP,20P-160P-82P (UHC MODEL)
TUN-CAP,20P-126P-126P (KHC,HRJLC,EZHC MODEL)
BAND
AM IFT 450
PFS450A7
0.022
3.3K
3.3K
C8
0.0056
240K
VCC
CR
OSC
SPEED
POWER C38
RADIO 0.1
OUTPUT
ALM-1
35V
OUT
ALM-2
OUT
ALM
DISP
TIME
SET
ON/OFF
IN
JW
SLEEP
SNOOZE
12/24H
50/60
IN
SW10
MODE
SELECT
RF TIM
HRJLC
SET
JW
MODEL
VDD
50/60
Hz
MODEL 68K
50/60Hz
JW EXCEPT
No Mount HRJLC MODEL
–
ALL MODEL 0.1
–
ALL MODEL
L3,TC3 L6,TC4
FM FREQUENCY AM FREQUENCY
RANGEADJ RANGEADJ
TC3
1015GR
C7 30P KHC, HRJLC, EHC MODEL
27P UHC MODEL
FM/AM FE FM NC AM FM REG FM AFC AM VOL NF FH
IF GND RF IN IN RF OUT OSC OSC DISCRI
OUT
AM FM IF POWER IC
U2
FM/AM AM FM
BAND IF IF IF AFC AFC DET AF RIPPLE AF
SELECT IN IN NC METER GND AGC AGC OUT IN FILTER VCC OUT
MS239
-A
0.022
2SC1815GR
IF AMP
POWER
16V
SK-43D03G6
ALRAM
SK-43D03G6
0.1
ALRAM
-8-
T2
FM IF ADJ
TC4
IFT FM DES
VOL
REG
RTRY 50K-BF-12NPD
0.01
8.2K
0.1
GND
GND
C43
0.01 (UH,EZH MODEL)
0.1
0.001 (KH,HRJL MODEL)
0.1
CN1
SOCKET
2P BATTERY
DC 9V
0.01
0.1
0.01
0.01
0.1
VOLUME
39K SPEAKER
8 ohm 0.5w 1/4
AC~
120V 60Hz (UHC MODEL)
230V 50Hz (KHC,EZHC MODEL)
110V-120V/220-240V,50/60Hz
(HRJLC MODEL)
HRJLC MODEL
SW11
SS-12J
PT
110V-120V
1
220V-240V
6
5
2 AC~
T1
PT,U 120V W/AC CORD (UHC MODEL)
PT,EZ 230V W/AC CORD (KHC,EZHC MODEL)
PT,HL 115/230V W/O AC CORD (HRJLC MODEL)
Note
SIGNAL
: AM
: FM