Sony RM-AV2100B Operating Instructions (primary... User manual

RM-AV2100B
US Model SERVICE MANUAL
INTEGRATED REMOTE COMMANDER
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
9-874-185-01
2002I1600-1
© 2002.09
SPECIFICATIONS
Ver 1.0 2002. 09
Operating distance Approx. 10 meters (32.8 ft.) (varies
depending on components of different
manufacturers)
Power requirements Remote control and backlight : Four size
AA (R6) batteries
Battery life Apporox. 5 months (varies depending on
frequency of use)
Dimensions Approx. 120 ×175 ×45 mm (w ×h ×d)
(43/4×7 ×113/16 in.)
Mass 290g (10.22 oz.) (not including batteries)
Design and specifications are subject to change without notice.

2
RM-AV2100B
Notes on chip component replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
•Keep the temperature of soldering iron around 270˚C
during repairing.
•Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•Be careful not to apply force on the conductor when soldering
or unsoldering.
TABLE OF CONTENTS
1. GENERAL ·········································································· 3
2. DISASSEMBLY ································································ 4
2-1. Case (Lower) ·································································· 4
2-2. MAIN Board ··································································· 4
3. TEST MODE······································································ 5
4. DIAGRAMS········································································ 7
4-1. Printed Wiring Board – Main Section – ························· 7
4-2. Schematic Diagram – Main Section – ···························· 8
4-3. IC Pin Function Description ···········································9
5. EXPLODED VIEWS ······················································ 10
6. ELECTRICAL PARTS LIST ······································· 11

3
RM-AV2100B
This section is extracted from
instruction manual.
SECTION 1
GENERAL
5COMMANDER OFF button
Turns the power of the Commander
off.
6Component Select buttons
Selects the component to control.
7VOLUME +/– buttons*(page 14, 22)
Adjust the volume.
8MUTING button*(page 14, 22)
Mutes the audio. Press the button
once again to resume at the previous
volume.
9CHANNEL +/– buttons
Select the channel.
*Note on the VOLUME +/– and
MUTING buttons
The Commander controls or mutes the TV’s
volume when you select a visual component.
The Commander controls or mutes the
amplifier’s volume when you select an audio
component.
You can change this setting also (page 22).
Note on the power on and off of the
Remote Commander
To turn on the power, press any button except
the COMMANDER OFF button.
To turn off, press COMMANDER OFF, or if
you don’t use the Commander, it automatically
turns off after 10 minutes. This interval can also
be changed (page 49).
Location and Function
of Controls
1Component display area
Displays the name of the component
selected.
2LCD touch key display (page 11)
The keys used for operating each
component are displayed.
Note
Do not press the touch keys using sharp
objects such as pins or ball-point pens.
3SYSTEM CONTROL buttons (page
23)
You can program up to 16 consecutive
key operations to each of the three
SYSTEM CONTROL buttons . You can
automatically carry out the entire
program by pressing one button.
4LIGHT button (page 50)
Used to light up the LCD display in
the dark. Press the button once to turn
on the light, and once again to turn it
off. You can also set the backlight to
go off automatically after a certain
period of time.

4
RM-AV2100B SECTION 2
DISASSEMBLY
2-1. Case (Lower)
Note: Follow the disassembly procedure in the numerical order given.
2-2. MAIN Board
case (upper)
3 two screws
(+KTP2
×4 )
5 case (lower)
case (upper)
claw
× 6
1 battery lid
2 two screws
(+KTP2
×4 )
claw
claw
claw
claw
claw
claw
4
2 case (upper)
3 Remove soldering of the
TTP and remove it.
4 LCD
1 five screws
(+P2
× 5)
6 MAIN board
5 rubber switch

5
RM-AV2100B
TEST Mode (Operation Check)
Preformthefollowingoperation checks usingtheTESTMode before
starting the repair works.
1. All Keys Operation Check
Connection Method :
1) While pressing the CHANNEL + key and the VOLUME +
key, ture ON the main power of the regulated power supply
(DC +6V). (Refer to Fig. 1-1.)
2) After sounding buzzer, remove all hands from pressing the all
keys descrived in above step 1). The all indications of the LCD
must be turned OFF. (Refer to Fig. 1-2.)
3) When any key of the Operation panel-key block (except
the COMMANDER OFF key), or any key of the LCD touch-
key block is pressed, the signal (carrier 40kHz) as shown in
Fig.1-3 must be transmittedin accordancethe pressed key, when
operation of the machine is normal.
4) Press all keys of the Operation panel-key block (except the
COMMANDER OFF key, and of the LCD touch-key block
sequentially. When all keys are pressed, confirm that the long
buzzar sound and aii LCD displays are turned off.
NOTE : Be careful that all data in S-RAM is cleared
when the above TEST mode is performed.
•This TEST Mode can be terminoted in its middle before testing
all keys by pressing the COMMANDER OFF key. However
the conduction check of the remairing keys cannot be checked.
(S-RAM isnot cleared.)
•P-ROM (IC9) is diagnosed to be free from defects when the
steps from 1) to 4) are performed correctly.
SECTION 3
TEST MODE
Fig. 1-1
Fig. 1-2
Fig. 1-3
+
–
Regulated power supply
(+6V constant voltage output)
set
+ +
CHANNEL VOLUME
Turn ON the
main power (DC 6V)
While pressing both keys
at the same time;
2.4msec 2.4msec 2.4msec
600
µ sec 600 µ sec
LCD touch-key block COMMANDER OFF
CHANNEL +
VOLUME +
Operation
panel-key block

6
RM-AV2100B
2. S-RAM (Learning Function) Operation Check
Connection Method :
1) While pressing the VOLUME – key and the CHANNEL–
key, ture ON the main power of the regulated power supply
(DC +6V). (Refer to Fig. 2-1.)
2) When LEARN and 1 of the LCD display appear, remove
hands from pressing the above mentioned keys. (Refer to Fig.
2-2.)
3) The display appears when the S-RAM is not defective. (The
diaplay NG appears when the S-RAM is defective.) (Refer to
Fig. 2-2.)
4) The display status as descrived in step 3) continues until any
key is pressed.
•S-RAM (IC3) is diagnosed to be free from defects when the
above steps from 1) to 4) are performed correctly.
Fig. 2-1
Fig. 2-2
LEARN
LEARN NG
(NG) (OK)
After a while
1
CHANNEL VOLUME
Turn ON the
regulated power suppl
y
(DC +6V)
While pressing both keys at the same time;
CHANNEL–
VOLUME–
+
–
Regulated power supply
(+6V constant voltage output)
set

77
RM-AV2100B
SECTION 4
DIAGRAMS
4-1. Printed Wiring Board – Main Section –
MAIN BOARD (CONDUCTOR SIDE)
MAIN BOARD
MAIN
BOARD
(COMPONENT SIDE)
(COMPONENT
SIDE)
T
O
TTP
(
40KEY
)
T
O
L
C
D
T
O
O
EL
L1
(BUZZER)
DRY BATTERY
S
IZE "AA"
IE
C
DE
S
I
G
NATI
ON
R6
4P
CS,
6V
1
2
3
R
CO
MMANDE
R
O
F
F
S
Y
S
TEM
T
B/A
L
V
O
L
U
M
E
M
U
TIN
G
D
SP
C
B
L
T
/S
A
T
12
A
B
C
D
E
F
G
345678910
C
N1
C
N
2
L1
Note on Printed Wiring Board:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•: Carbon pattern
Caution:
Pattern face side: Partsonthepattern facesideseenfrom
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
Ref. No. Location
D1 B-10
D2 B-9
D3 B-7
D4 B-7
D5 F-8
D6 E-10
D7 B-9
D8 C-8
D9 F-8
IC1 C-9
IC2 D-8
IC3 E-8
IC4 E-9
IC5 B-7
IC6 D-7
IC7 D-10
IC8 B-7
Q1 B-10
Q2 B-10
Q3 F-10
Q4 F-9
Q5 F-9
Q6 G-8
Q7 E-10
Q8 F-8
Q9 B-8
Q10 B-8
• Semiconductor
Location

88
RM-AV2100B
4-2. Schematic Diagram – Main Section – • See page 9 for IC Pin Function Description.
•All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise
specified.
•f: internal component.
•C: panel designation.
•A: B+ Line.
•Power voltage is dc 6V and fed with regulated dc power
supply from battery terminal.
•Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
•Voltages and waveforms are dc with respect to ground in
playback mode.
•Voltages are taken with aVOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Waveforms are taken with a oscilloscope.
Note:
•Waveforms
1IC1 qa XT2
4.6Vp-p
31µs
32kHz
2V/div
20µsec/div
4.6Vp-p
2V/div
0.1sec/div
0.5sec
5MHz
2IC1 7X2
TOTAL CURRENT
POWER OFF:
LIGHT OFF:
LIGHT ON:
0.12mA
0.17mA
6.0
5.0
4.5
4.5
4.5
4.5
4.5
4.5
5.0
5.0
5.0
5.0
5.0
4.6
4.6
5.0 5.0
5.0
4.9
0
0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
0
5.0
5.0
5.0
5.0
5.0
0
0
0
0
0
0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
0
0
0
5.0
0
0
0
5.0
5.0
0
5.0
0
5.0
5.0
5.0
4.8
5.0
0
0
5.0
0
5.0
5.0
4.8
5.0
5.0
5.0
5.0
4.8
0
0
0.4
0.7
0.1
5.0
0
0.1 0.5
0
0
4.5
0
4.5
0
2.4
2.4
2.4
2.4
2.4
2.5
2.4
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.4
2.4
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.4
2.5
2.4
2.4
2.5
2.5
2.4
2.4
2.5
0
0
2.5
0
0
3.1
5.0
2.4
0
2.3
5.0
5.0
5.0
5.0
5.0
0.7
0
0
5.0
0
0
0
0
0
0
0
0
0
0
5.0
5.0
0
5.0
0.8
5.0
2.6
2.9
4.9
5.0
5.0
0
5.0
5.0
4.9
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
0
5.0
5.0
0
0
5.0
5.0
6.0
11.3
11.7
52.0mA
2.5
2.4
5.0
1
2
3
4
5
6 79
1012
1
2
3
4
5
6
7
8
9
10 11121314151617181920
1
2
3
4
5
6
7
8
9
10 11121314151617181920
1
2 3
1
2
3
4
5
6
7 89
1011121314
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 32
33
34 35
36 37
38
39
40 41
42
43
44 45
46 47
48
49 50
515253545556575859606162636465666768697071727374757677787980
81
82
83 84 85 86 87 88 89 90 91 92 93
94
95 96 97 98 99
100
1
2
3
4
5
6
7
8
9
10
11
12
13
14 1516171819202122232425262728
21
4
21
4
R27 R28 R29
C20 C21
TP1
R23
Q1
TPD1
R25
R24
Q2
TPD3
R26
R33
Q8
Q6
R22
C16
TPE1
Q5
Q4
R20
R18
TP4
TP3
R15
BZ
TP2
R12
TP16
R13
TP5
R14
Q7
TP8
C11
TP9
R8
R1
R2
R3
R4
R5 R6
R7
D7
C4
TP10
TPX2
X2
X1
TPX1
TP25
TP26
TP15
TP14
R36
R35
Q10
R31
D8
R34 R32
TP12
TP13
TP5V
TPGND
TP6V
IC4IC3
IC2
IC1
D1
D2
D3
D4
C15
L1
C14
D9
D5
R19R17
IC7
IC8
TP
TPTP
C6
IC5
R10
Q3
Q9
IC6
R21
C1
C2
C3
C10
C5
R9
C22
TP11
R37
C17
C18 R11
C12 C13
D6
C19
R16
C7
C8
100k 100k 100k
470
2SD1328
8.2
470
2SD1328
8.2
470
2SD602
2SD1328
47
0.1
2SD602
2SD602
1k
100k
4.7k
10k
47k
15k
2SD601
0.01
120k
6.8k
10k
10k
2.2M
39k 560
27k
TPS705
0.047
32.768KHz
5MHz
1k
4.7k
2SD601
10k
MA152A
4.7k 15k
HD74HC373FPLHD74HC373FPL
518256LL70FT
UR64LD1
UR64LD1
UR64LD1
UR64LD1
10
50V
470
10V
1SS294
1SS294
1k100k
S80845ALNPT2
S80840ANNPT2
100
10V
100k
2SD601
2SB709
RH5RE50AA
2.2k
220p
3300p
0.047
0.01
0.01
100k
0.047
10k
33p
33p 330k
0.47F
5.5V
1SS294
1k
47010V
0.01
D3
D4
D5
D7
D7
D0
D1
D2
A13
A8
A9
A11
A10
D7
D6
D5
D4
D3
D0
D1
D2
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
D7
D6
D5
D4
A14
A13
A12
A4
A5
A6
A7
D7
D6
D5
D4
A11
A10
A9
A8
D3
D2
D1
D0
A3
A2
A1
A0
D0
D1
D2
D3
P117
P116
P115
P114
P113
P112
P111
P31
P32
P33
P10
P26
P27
P70
P71
P72
VPP
X2
X1
VDD
XT1
XT2
RESET
P00
P01
P02P03
P04
P05
P110
P111
P112
P113
P114
P115
P116
P117
AVSS
P10
P11
P12
P13
P14
P15
P16
P17
VDD
AVREF
P100
P101
VSS
P102
P103
P31
P32
P33
P34
P35
P36
P37
P30
S20
S19
S18
S17
S16
S15
S14
S13
S12
S11
S10
S9
S8
S7
S6S5
S4
S3
S2
S1
S0
VSS
VLC2
VLC1
VLC0
BIAS
COM3
COM2
COM1
COM0
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S33
S34
S35
S36
S37
S38
S39
P25
E L
JP1
P25
P26
TTP
(40KEY)
EL1
(DATA IN)
(DATA OUT)
MUTING 1 2 3 LIGHT
COMMAN
DER
+ + TV VCR1 VCR2 VCR3 DVD
CBL
/SAT
(CHANNEL) (VOLUME)
--
AMP CD
MD
/DAT
DECK
B/A TUNER DSP
(CHANNEL) (VOLUME)
DRY BATTERY
SYZE"AA"
IEC DESIGNATION
R6
4pcs.6V
PRE AMP
RESET
REG.
DROM
REG.
DROM
SRAM
SYSTEM CONTROL
LED DRIVE
LED DRIVE
SWITCH
BUFFER DRIVE
SWITCHING
SWITCHING
INVERTER
BUFFER
BUFFER
OSC
OFF
(BUZZER)
TO LCD
TP27
P27
P35
P34
(GND)
5.0
12
A
B
C
D
E
F
G
H
I
J
345678910111213

9
RM-AV2100B
Pin No. Pin Name I/O Pin Description
1,2 P26,27 O Segment signal output terminal.
3P70 I Serial input.
4P71 O Serial output.
5P72 I Asynchronous serial clock.
6VPP — Internally connected.
7X2OCrystal.(Main system clock)
8X1ICrystal.(Main system clock)
9VDD — Power supply.
10 XT1 I Crystal.(Subsystem clock)
11 XT2 O Crystal.(Subsystem clock)
12 RESET I Reset.
13,14 P00,01 I Remote control signal received input.
15 P02 O Remote control signal received block ON/OFF output.
16 to 18 P03 to P05 O Terminals to white external memory is connected.
19 to 26 P110 to P117 I Segment signal input terminal.
27 AVSS — Ananog ground.
28 to 35 P10 to P17 I/O Analog data input.
36 VDD — Power supply.
37 AVREF I Analog reference voltage.
38 P100 O EL control output.(bright)
39 P101 O EL control output.(dark)
40 VSS — Ground.
41 P102 O Latch. (upper bits)
42 P103 I Power supply termina.
43 P30 O Remote control signal received output.
44 to 48 P31 to P35 O Segment signal output terminal.
49 P36 O Buzzer clock.
50 P37 O Latch. (lower bits)
51 to 54 COM0 to COM3 O Common clock.
55 BIAS — LCD power supply bias contorl.
56 to 58 VLC0-2 — LCD power supply.
59 VSS — Ground.
60 to 83 S0 to S23 O Segment signal output terminal.
84 to 99 S24 to S39 I/O Segment signal input/output terminal.
100 P25 O Segment signal output terminal.
4-3. IC Pin Function Description
• IC1 (µPD780308024) (System Control)

NOTE:
•-XX, -X mean standardized parts, so they may
have some differences from the original one.
•Items marked “*” are not stocked since they
are seldom required for routine service. Some
delayshouldbeanticipatedwhenorderingthese
items.
•Themechanicalparts with no reference number
in the exploded views are not supplied.
•Accessories are given in the last of this parts
list.
10
RM-AV2100B SECTION 5
EXPLODEDVIEWS
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
11
10
1
9
2
4
8
17
5
3
#2
7
6
16
12
EL1
#1
#1
13
14
15
19-880-056-01 TTP
29-885-005-76 LCD
39-885-028-50 LID,BATTERY CASE
*49-885-003-62 MAIN BOARD, COMPLETE
59-995-523-01 FOOT,RUBBER
69-880-048-01 RUBBER SWITCH
79-885-028-49 CASE(LOWER)
*89-880-057-01 SPACER
*99-995-525-01 LCD BRACKET
*10 9-880-051-01 SEAL
11 9-995-518-01 SMOKE PLATE
12 9-885-028-48 CASE(UPPER)
13 9-885-005-63 COMMON TERMINAL(D)
14 9-885-005-62 COMMON TERMINAL(C)
15 9-885-005-64 COMMON TERMINAL(E)
*16 9-880-053-01 ZEBRA CONNECTOR
17 9-880-461-01 DAMPER (SPACER LABEL)
EL1 9-880-153-01 ELECTRO LUMINESCENT
#1 7-685-205-19 SCREW +KTP2X4 TYPE2 NON-SLIT
#2 7-685-103-19 SCREW +P2X5 TYPE2 NON-SLIT