Sony AIR-RM10 Service Manual ▷ View online
AIR-RM10
4
2-3. MAIN BOARD
Note: This illustration sees the front cabinet block from MAIN board side.
4 Remove three solders of
lead
wire
1 two screws
Arrangement of battery terminal
lead wire
black
5 Remove eight solders of
MAIN
board.
Arrangement of lead wire
MAIN board
3 Remove two solders of
batterry terminal lead wire.
red
ditch
ditch
boss
ditch
ditch
6 MAIN board
2 flexible flat cable
(W1)
(CN1)
black
red
ditch
yellow
front cabinet block
AIR-RM10
5
SECTION 3
TEST MODE
FACTORY SETTING
Procedure:
1. Press the [
Procedure:
1. Press the [
?/1
] button to turn the power on.
2. Press three buttons of the [
N
], [
X
], and [
?/1
] simultaneously.
3. The message “INITIALIZE?” is displayed on the liquid crystal
display, and press the [VOLUME –] button.
4. The main power is turned off, and the data of the built-in data
fl ash memory is initialized.
5. Press the [
?/1
] button to turn the power on.
PANEL TEST MODE
Procedure:
1. Press the [
Procedure:
1. Press the [
?/1
] button to turn the power on.
2. Press three buttons of the [COUPLING], [PAIRING], and
[
N
] simultaneously.
3. Then all segments of liquid crystal display are turned on. The
display changes in order of the all segments of are turned on
→ test pattern 1 → test pattern 2 → all segments of are turned
on... whenever the [
on... whenever the [
x
] button is pressed.
4. Press the [PRESET –] button, the version of the micro control-
ler is displayed on the liquid crystal display.
5. Press the [
N
] button, the message “Key test 0” is displayed
on the liquid crystal display. When all buttons are pressed, the
message “Key test 13 OK” is displayed on the liquid crystal
display.
message “Key test 13 OK” is displayed on the liquid crystal
display.
6. To exit from this mode, press three buttons of the [COUPLING],
[PAIRING], and [
N
] simultaneously.
AIR-RM10
6
SECTION 4
DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• f : Internal component.
• C : Panel designation.
• C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• Voltages and waveform are dc with respect to ground un-
• Voltages and waveform are dc with respect to ground un-
der no-signal (detuned) conditions.
no mark : POWER ON
• Voltages are taken with VOM (Input impedance 10 M
• Voltages are taken with VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveform is taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled number refer to waveform.
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
•
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
•
: Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Waveform
– MAIN Board –
1
IC403
7 (XOUT)
1 V/DIV, 50 ns/DIV
125 ns
2.9 Vp-p
AIR-RM10
AIR-RM10
7
7
• IC Block Diagrams
– MAIN Board –
IC901 XC6215B332NR
IC902 XC6215B402NR
IC902 XC6215B402NR
IC903 XC9220C09AMR
EACH CIRCUIT
2
VSS
1
CE
ERROR AMP
VIN
4
VOUT
3
ON/OFF
CONTROL
VOLTAGE
REFERENCE
CURRENT
LIMIT
+
–
VIN
5
CE/CSS 1
VSS 2
FB 3
EXT/
4
+
–
–
CHIP
ENBALE
SOFT START
(INTERNAL)
SHORT CIRCUIT
PROTECTION
MAX DUTY LIMIT
PROTECTION
EACH
CIRCUIT
OE
CE
VOLTAGE
REFERENCE
ERROR
AMP
RAMP
WAVE
WAVE
PWM CONTROL LOGIC
OSC ENABLE
OSC
LOGIC
S
Q
BUFFER
UNDER
VOLTAGE
LOCK OUT
R
RS LATCH
EACH
CIRCUIT
–
+
+
PWM
COMPARATOR
• IC Pin Function Description
MAIN BOARD IC403 R5F212BASNFP (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NC
-
Not used
2
SAIR_EEP_SDA
I/O
Two-way I2C data bus with the RF unit
3
FW_MODE
-
Not used
4, 5
NC
-
Not used
6
NRST
I
System reset signal input from the reset signal generator “L”: reset
7
XOUT
O
System clock output terminal (8 MHz)
8
VSS
-
Ground terminal
9
XIN
I
System clock output terminal (8 MHz)
10
VCC
-
Power supply terminal (+3.3V)
11 to 18
NC
-
Not used
19
IR_PWM
O
SIRCS signal output to the remote control transmitter
20
BACK_LIGHT
O
LED drive signal output terminal for the liquid crystal display back light
21
LCD_NRST
O
Reset signal output to the liquid crystal display
22
LCD_RS
O
RS signal output to the liquid crystal display
23
LCD_CSB
O
Chip select signal output to the liquid crystal display
24
PAIRING
I
PAIRING key input terminal
25
LCD_CLK
O
Serial data transfer clock signal output to the liquid crystal display
26
NC
-
Not used
27
LCD_DO
O
Serial data output to the liquid crystal display
28
NC
-
Not used
29
IR_CLK
O
LED drive signal output terminal for remote control transmitter
30, 31
NC
-
Not used
32
LCD_POWER
O
Power supply on/off control signal output terminal for liquid crystal display “H”: power on
33
NC
-
Not used
34
SAIR_PW
O
Power supply on/off control signal output terminal for RF unit “H”: power on
35
SAIR_RST
O
Reset signal output to the RF unit “L”: reset
36
SAIR_GPIO
I
Interrupt signal input from the RF unit
37
FW_TXD
-
Not used
38
FW_RXD
-
Not used
39 to 41
TEST1 to TEST3
I
Test mode setting terminal
42 to 44
NC
-
Not used
45
VDET
I
Voltage abnormality detection signal input terminal
46
KEY_IN3
I
Key input terminal Not used
47 to 49
KEY_IN2 to KEY_IN0
I
Key input terminal
50 to 53
KEY_OUT3 to
KEY_OUT0
I
Key output terminal
54
SAIR_ID_SW
I
S-AIR ID selection switch input terminal “L”: A, “M”: B, “H”: C
55 to 57
NC
-
Not used
58
VMNT2
I
Power supply voltage monitor signal input terminal
59
VSS
-
Ground terminal
60
VMNT1
I
Power supply voltage monitor signal input terminal
61
VREF
I
Reference voltage (+3.3V) input terminal
62
VCC
-
Power supply terminal (+3.3V)
63
NC
-
Not used
64
SAIR_EEP_SCL
O
I2C clock signal output to the RF unit