TCS-60DV
— 20 —
— 21 —
— 22 —
— 23 —
— 24 —
5-4. PRINTED WIRING BOARD – LED SECTION –
1
2
A
B
C
D
E
3
4
5
6
7
8
9
10
11
12
13
Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
Through hole is omit.
•
b
: Pattern from the side which enables seeing.
Caution:
Pattern face side:
Parts on the pattern face side seen from
(SIDE A)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(SIDE B)
the parts face are indicated.
5-5. IC BLOCK DIAGRAMS
IC501 NJM2072M
IC502 MM1251BFBE
1
2
3
4
8
7
6
5
GND
AMP OUT
GAIN CONT
INPUT
VCC
OUTPUT2
OUTPUT1
RECOVERY
TIME CAP
CT
OUT
N.C
GND
VS
VCC
HYS
N.C
1
2
3
4
5
6
7
8
–
+
–
+
BOOSTER
SIRCUIT
IC304 TA7688F-S0
IC305 CXA2500N-T4
9
IN2
NF1
VR
GND
BASE
BY2
OUT1
VB1
NF2
BY1
PW
VCC
OUT2
MUTE
VB2
IN1
10
11
12
13
14
15
16
1
5
2
3
4
6
7
8
–
+
RIPPLE
FILTER
MUTE
PW-OFF
–
+
DC
DC
REFERENCE
MIC INPUT (A)
PB OUTPUT (A)
REC DRIVE INPUT (A)
REC DRIVE OUTPUT (A)
AGC TIME CONST
ANT
TAPE/TUNER SELECTOR
1
2
PB PRE INPUT (A)
PB NF (A)
3
4
5
PB EQ SWITCH (A)
TUNER INPUT (A)
LINE OUTPUT (A)
6
7
8
9
10
11
12
REC DRIVE OUTPUT (B)
VCC
PB/REC SELECTOR
13
14
15
PB OUTPUT (B)
PB NF (B)
PB PRE INPUT (B)
MIC INPUT (B)
GND
20
21
22
23
24
TUNER INPUT(B)
PB EQ SWITCH (B)
18
19
REC DRIVE INPUT (B)
LINE OUTPUT (B)
16
17
TAPE/
TUNER
REF
AGC
MIC
NORM/
METAL
GCA
PB
LINE
REC
AGC
DET
AMP
AGC
MIC
GCA
PB
LINE
REC
AGC
DET
AMP
MIC
GCA
PB
LINE
REC
AMP
PB/
REC
6dB
22dB
12dB
-0.3dB
20.5dB
Ref. No.
Location
D501
E-3
D502
E-4
D503
E-6
IC502
E-5
Q504
E-3
Q505
E-7
• Semiconductor
Location
