Sony HS-RM536 / HS-RM539 Service Manual ▷ View online
9
HS-RM536/RM539
Adjustment Location :
[MAIN BOARD] (SIDE A)
L3 : FM Frequency Coverage Adjustment
L2 : FM tracking Adjustment
L4 : AM Frequency Coverage Adjustment
IFT1 : AM IF Adjustment
CT1 : AM Tracking Adjustment
L1 : AM Tracking Adjustment
IC1
10
HS-RM536/RM539
SECTION 4
DIAGRAMS
Pin No
Pin name
I/O
Descliption
1
XOUT
O
Crystal oscillator output (75kHz)
2
TEST2
–
Not used (Ground)
3
PA3
I
Key input
4
PA2
I
Key input
5
PA1
I
Key input
6
PA0
I
Key input
7
PB3
O
Key output
8
PB2
O
Key output
9
PB1
O
Key output
10
PBO
O
Key output
11
BAND
O
Band select control
12
TV
–
Not used (OPEN)
13
SUPER BASS
O
Super bass on/off control
14
ID1
I
Distination select input
all : “L”
15
ID2
I
Distination select input
E/TW : “H” CH/9E : “L”
16
ID3
I
Distination select input
E/TW : “H” CH/9E : “L”
17
TAPE
I
Tape on detect input
18
BACK UP
I
Back up voltage input
19
AMP ON
O
Power ON/OFF signal output
20
BEEP
O
Beep signal output
21
BACK UP CHECK
I
Back up cancel input
22
BATT CHECK
I
A/D reference voltage input
23
REMOTE
I
Remote control A/D input
24
VSS
–
Ground terminal
25
MOTOR CTL
O
Motor control output
26
HOLD
I
Hold switch input
“H” : ON, “L” : OFF
27
MUTE
O
Mute ON signal output
28
RADIO ON
O
Radio ON signal output
29
SD
I
Tuning signal detect input
30
PRE CTL
O
Preamplifier control output
31
DIR IN
I
Tape direction detect input
32-44
S1-13
O
LCD segment output
45-48
COM1-4
O
LCD common output
49-52
DBR1-4
–
LCD power supply
53
RESET
I
Reset input (Fixed “H”)
54
TU VCC
–
Power booster for tuner
55
VDD
–
Power supply
56
FM IN
I
FM osc frequency input
57
AM IN
I
AM osc frequency input
58
VSS
–
Ground terminal
59
EO
O
Error (PWM) signal output
60
LPF IN
I
LPF input
61
LPF OUT
O
LPF output
62
LPF GND
–
Ground terminal
63
TEST 1
–
Not used (Ground)
64
X IN
I
Crystal oscillator input (75kHz)
4-1. EXPLANATION OF IC TERMINALS
IC801
LC72348W-9B64-E SYSTEM CONTROL
11
11
HS-RM536/RM539
4-2. BLOCK DIAGRAMS
• Signal path.
F
:
FM
f
:
AM
E
:
PB
B. P. F
CT1
L1
AM
FERRITE BAR
ANTENNA
IFT1 AM IFT
X1
10.7MHz
CF1
450kHz
CF2
10.7MHz
BPF1
FM RF IN
AM RF IN
MIX OUT
VCC
QUAD
FM IF IN
AM IF IN
DET
OUT
MPX IN
L-OUT
R-OUT
FM RF OUT
TU +B
Q1
BUFFER
CONTROL
SWITCHES
LOGIC
LCD801
LIQUID CRYSTAL
DISPLAY
DC IN 3V
1
24
4
6
12
8
18
17
MIX IN (L)
30
H.PIN (L)
28
MIX IN (R)
29
FWD IN (L)
9
10
12
LPF OUT
61
LPF IN
60
E0
59
FM IN
56
AM IN
57
BAND
11
SD
29
HOLD
26
PB0-3
PA0-3
L CH
1
L CH
64
ID1
14
ID2
15
ID3
16
48-45
COM1-4
3
I
6
7
I
10
S1-13
44-32
44-32
FWD IN (R)
REV IN (L)
REV IN (R)
11
H.PIN (R)
27
PW IN (L)
22
PW IN (R)
23
M VREF
34
IN +
35
S/S
3
SYSTEM
15
PW MUTE
21
L.B SW
32
14
MIX OUT (L) 24
MIX OUT (R) 25
MOTOR CTL 25
REC CTL 30
MUTE 27
SUPER BASS
RM539
RM539
13
REMOTE 23
BACK UP 18
BACK UP CHECK 21
RESET 53
RADIO ON 28
AMP ON 19
TAPE 17
DIR IN 31
PW OUT (L) 16
PW OUT (R) 20
U
RV301
VOLUME
SFR601
MOTOR
MOTOR
SPEED
39
V 40
W 41
13
7
23
FM OSC 21
AM OSC 20
LPF2 16
TUN LED 18
M601
CAPSTAN
/REEL
MOTOR
J301
PHONES
DRY BATTERY
SIZE AA
(IEC DESIGNATION: R6)
2 PIECES
3VDC
J901
S811
TAPE
TAPE
POWER
S812
TAPE
TAPE
DIR
MOTOR
+B
VCC
TU +B
X801
75kHz
S802 - 809
TU +B
S801
HOLD
Q903
Q901, 902
HP601
PLAYBACK
L-CH
FWD
R-CH
L-CH
REV
R-CH
IC301
TAPE HEAD AMP, MOTOR DRIVE, POWER AMP
IC1
FM/AM RF, IF AMP, FM MPX
IC801
SYSTEM CONTROL,
LCD DRIVE
12
12
HS-RM536/RM539
MAIN BOARD (SIDE A)
11
(11)
1-688-476-
R16
R17
R18
C26
C32
C25
C24
C21
C20
C35
C22
C23
R852
R812
R807
R810
R302
R811
R813
C808
C855
C810
C804
RM539
R853
R851
C852
C851
R902
R901
R26
R25
R304
R606
R605
R905
R602
R206
R907
R904
R906
R604
R603
R205
R106
R105
C904
C803
C105
C30
C29
C205
C603
C601
C602
C604
C605
C607
C606
C207
C107
D851
D801
D852
D902
D901
TH604
C104 C204
C809
L851
L801
L901
Q903
Q902
Q901
E
E
1
12
13
24
IC1
2
3
4
5
6
7
A
1
B
C
D
4-3. PRINTED WIRING BOARDS – MAIN SECTION (SIDE A) –
Note:
• X : parts extracted from the component side.
•
•
z
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Ref. No.
Location
z
Semiconductor
Location
D801
D-4
D851
D-3
D852
D-4
D901
B-2
D902
A-2
IC1
C-6
Q901
B-3
Q902
A-3
Q903
A-3
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