Sony TCM-900DV Service Manual ▷ View online
16
16
TCM-900DV
4-8. PRINTED WIRING BOARDS – SW SECTION ( SIDE A) –
2
3
4
5
6
7
8
9
A
1
B
C
D
E
F
G
17
8
1
32
25
30
9
16
15
10
5
20
24
1
5
10
15
22
20
1
5
10
15
22 20
11
(11)
1-680-612-
LCD901
LIQUID CRYSTAL
DISPLAY
SW BOARD
(SIDE A)
C901
IC901
C902
C903
C905
C904
R914
CN903
CN902
RV901
A
MAIN BOARD
CN901
SP901
SPEAKER
SPEED
CONTROL
MIC901
FLAT MIC
S901
MIC SENS
H
L
NOTE:
• X : parts extracted from the component side.
•
• X : parts extracted from the component side.
•
z
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
17
17
TCM-900DV
4-9. PRINTED WIRING BOARDS – SW SECTION ( SIDE B) –
2
3
4
5
6
7
8
A
1
B
C
D
E
F
G
11
(11)
1-680-612-
TP902
TP904
R907
C908
R908
R901
C906
R906
R911
C907
R910
R909
C910
C909
R912
TP901
TP908
S909
TP907
S906
S905
D902
TP905
TP910
TP909
TP906
TP903
R904
R903
R902
R905
S902
VOR
OFF
ON
S909
COUNTER
RESET
REPEAT
S908
+
S907
-
S906
REPEAT
S905
PAUSE
S903
REC TIME
X2
NORMAL
S904
DPC
AUTO
MANUAL
OFF
S910
+
S911
-
PITCH CONTROL
D901
REC
SW BOARD
(SIDE B)
NOTE:
• X : parts extracted from the component side.
•
• X : parts extracted from the component side.
•
z
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
18
18
TCM-900DV
IC901
SP901
S901
S902
S903
S904
R905
C906
R907
C907
C908
C909
C910
CN903
R906
R908
R909
R910
R911
R912
R914
C902
C904
C905
C903
R901
R902
R903
R904
D902
D901
MIC901
RV901
S905
S906
S907
S908
S909
S910
S911
BU9735K
SPEAKER
C901
1
CN902
22P
3.3k
0.1
3.3k
0.1
0.1
0.1
0.1
22P
2.2k
2.2k
2.2k
2.2k
1k
47k
470k
1
1000p
1000p
1000p
470k
470k
330k
330k
MA8056
LC-170HR
100k
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG1
SEG2
COM1
COM2
COM3
COM4
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
COM1
COM2
COM3
COM4
OI
OSC2
VSS
VC
VLCD
VDD
SCK
SO
CS
CD
SEG1
COM1
COM2
COM3
COM4
SEG4
SEG5
SEG6
SEG7
SEG9
SEG9
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
LCD
DRIVER
SEG11SEG10
SEG3
SEG2
SEG18
FLAT MIC
DPC
DISPLAY
LIQUID
CRYSTAL
+
-
+
–
PAUSE
REPEAT
REPEAT
REPEAT
RESET
COUNTER
PITCH
CONTROL
PITCH
CONTROL
AUTO
MANUAL
OFF
REC TIME
V O R
NORMAL
DOUBLE
OFF
ON
MIC SENS
L
H
SPEED CONTROL
REC
LCD901
. .
5
4-10. SCHEMATIC DIAGRAM – SW SECTION –
z
Refer to page 8 for Notes.
z
Refer to page 8 for Waveforms.
z
Refer to page 21 for IC Block Diagrams.
19
TCM-900DV
Pin No.
Pin name
I/O
Description
1
FF/REW SW
I
Fast foeward/Rewind switch (S702) input
2
VOR IN
I
VOR detect ON/OFF signal input
3
DPC SW
I
DPC position switch (S904) input
4
POWER/BATT DET
I
Power supply detect input (power on : H, off :L)
5
JACK DET
I
Earphone jack detect (J102) input
6
PHOTO IN
I
Rotation of reel detect signal
7
TAPE SPEED SW
I
Tape speed (REC TIME) switch (S903) input
8
KEY IN
I
Key input terminal of analog voltage mode
9
AVSS
—
Ground terminal
10
REC IN
I
REC/PB switch (S101) input (REC : H, PB : L)
11
SP SW
O
Speaker ON/OFF signal output (speaker on : H)
12
WAKE UP
I
Interrupt signal input
13
SPPED CTL
O
Tape speed signal output
14
VOR SW
I
VOR ON/OFF switch (S902) input
15
MOTOR CTL
O
Motor ON/OFF signal output (Motor ON : L)
16
LCD/REP SCLK
O
Clock signal output to LCD driver and repeat IC
17
VDD1
—
Power supply terminal (B+3.6V)
18
LCD/REP DATA OUT
O
Serial data signal output to LCD driver and repeat IC
19
REP SI
I
Serial data input for repeat IC
20
LED CTL
O
REC LED ON/OFF signal output
21
LCD CS
O
LCD driver chip select signal output
22
XIC0
—
Not used (connect to ground)
23
XT2
—
Not used (OPEN)
24
XT1
—
Not used (connect to ground)
25
RESET
I
System reset signal input
26
X2
O
Crystal oscillator terminal (4MHz)
27
X1
I
Crystal oscillator terminal (4MHz)
28
VSS0
—
Ground terminal
29
VDD0
—
Power supply terminal (B+3.6V)
30
PIC ON/OFF
O
Digital pich control signal(DPC OFF : L, DPC ON : H)
31
PIC CTL
O
Digital pich control PWM signal output
32
PIC MCI
O
Digital pich control mode signal output (AUTO : L, MANUAL : H)
33
PIC RST
O
Digital pich control reset signal output
34
REP RST
O
Repeat IC reset signal output
35
REP CS
O
Repeat IC chip select signal output
36
REP BUSY
I
Repeat IC busy signal input
37
VSS1
—
Ground terminal
38
REC CTL
O
REC control signal output
39
REP ON
O
Repeat ON/OFF signal output (OFF : H, ON :L)
40
F/R GEAR
I
Forward/reverse switch (S701) input (FWD : H, REV :L)
41
REP CUE/REV
O
Reseat playback cue/review signal output
42
MUTE CTL
O
Audio mute signal output
43
AVDD
—
Power supply terminal (B+3.6V)
44
AVREF
—
Referemce voltage to A/D converter (connect to AVDD (B+3.6) )
4-11. EXPLANATION OF IC TERMINALS
IC701 uPD789166GB-552-8ES (SYSTEM CONTROL)
IC701 uPD789166GB-552-8ES (SYSTEM CONTROL)
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