MZ-R5ST
6-9.
SCHEMATIC DIAGRAM — MD MAIN SECTION (3/3) —
— 55 —
— 56 —
— 57 —
— 58 —
1
2
A
B
C
D
E
F
G
3
4
5
6
7
8
9
10
11
12
13
14
15
• Refer to page 77 for IC Block Diagrams.
Note:
• 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
Ω
and
1
/
4
W or less unless otherwise
specified.
•
A
: B+ Line.
• Power voltage is dc 4.5 V and fed with regulated dc power
supply from battery terminal.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
no mark : PB
(
) : REC
• Signal path.
E
: PB
a
: REC
D304 DA204U
Q301
DTA144EUA
8
9
10
11
12
13
14
1
2
3
4
5
7
6
IC305
DS1801E
2
1
3
4
IC306
PST9322
Q311
UMD2
RB301
47k
3
4
5
6
7
8
FB301FB
FB350 0
FB305 0
FB303
FB302
FB304
FB235 0
FB135 0
1
2
3
5
4
IC301
RN5RZ25A
1
5
4
D303
FTZ6.8E
1
2
3
2
3
5
4
D302
FTZ6.8E
Q313
UMB2
Q314
UMB2
D301
NM
J301
Q101
2SC4213
Q201
2SC4213
5
6
7
8
4
3
2
1
IC302
TLV2362IPW
S301
MIC-SENS
J302
9
10
11
12
13
14
15
16
1
2
3
4
5
8
7
6
IC805
LA4800V-TLM
L303 10
u H
L304
10u H
24
23
22
21
20
19
18
17
16
15
14
13
48
47
46
45
44
43
42
41
40
39
38
37
11
10
9
8
7
6
5
4
3
1
IC303
AK4515-VQ
C305
47
6.3V
C303
10
6.3V
C399
0.68
10V
C295
4.7
6.3V
C346
10
6.3V
C345
22
6.3V
C292
4.7
6.3V
C293
3.3
6.3v
C294 22 4V
C327
22
6.3V
C322
10
6.3V
C321
47
6.3V
C217 4.7
6.3v
C1
17 4.7
6.3V
C109
10
6.3V
C110
1
6.3V
C103
1
6.3V
C203
1
6.3V
C107
10
6.3V
C106
47
6.3V
C209
10
6.3V
C206
47
6.3V
C207
10
6.3V
C210
1
6.3V
C365
10
6.3V
R383 4.7k
R382 4.7k
R236
4.7k
0.50%
R136
4.7k
0.50%
R261 1k
R161 1k
R380 0
R381
100
R374
100k
R364 2.2
R219
2.2
R119
2.2
R237
3.3k
R137
3.3k
R160
1M
R260
1M
R306
10
R208
680 0.50%
R203
6.8k
0.50%
R205
22k
R105
22k
R107
33k
0.50%
R103
6.8k
0.50%
R108
680
0.50%
R207
33k0.50%
R365100
R101
6.8k
0.50%
R201
6.8k
0.50%
TP3003KEY2
TP3002
AVLSI/DATA
TP3006
HP-R
TP3004
R-GND
TP383
Mech.chassis(HP)
TP3101
HP-DATA
TP3005
HP-L
TP3007
HP-COM
TP3001
R-VCC
TP3013
MIC-L
TP3014
MIC-R
TP3012
MICIN-DET
TP3011
MIC-GND
C301 0.1F
C168
1
B
C261
680p B
C268
1
B
C104
1000P B
C204
1000P
B
C366
0.1
F
C125
1000p
B
C225
1000p
B
C359
1000p
B
C369
0.1
F
C368
1000p
B
C124
0.22F
C338
1 B
C224
0.22F
C296 0.1 B
C161
680p B
C315
0.1
F
C318
0.1
F
C320
0.1
F
C220
0.47 B
C218 0.1
F
C1
18 0.1
F
C120
0.47
B
C307
0.1
F
C306
C201
2200p
B
C101
2200p
B
C310
0.047
F
C105
150p CH
C205
150p CH
C304
1000p B
XMICDET
XRST
XPD
AMUTE
RVCC
DATA
KEY2
XPD
XRST
AMUTE
KEY2
DATA
RVCC
XMICDET
256FS {1}
ALRCK {1,3}
ABCK {1,3}
SDTO {1}
SDTI {1,3}
XCS {3}
CDTO {3}
CDTI {3}
DGND {1,3}
2.8VA {3}
AOUTR {3}
AOUTL {3}
SCK2 {3}
EVR {3}
CSEVR {3}
XPD {3}
XRST {1,3}
AMUTE {3}
XMICDET {3}
AUGND {3}
BEEP {3}
KEY2 {3}
DATA {3}
RVCC {3}
RGND {3}
VCC
CLK
DIN
AGND
HI
LI
WI
HO
LO
WO
ZCEN
CS
NC
GND
VCC
VOUT
GND
NC
XCE
NC
OUT
IN
GND
EVR
3
1
2
7
6
5
4
HP.AMP
BEEP
RFC
VCC
OUTL
OUTC
PWGND
OUTR
MUTE
RFOUT
VREFC
PRGND
VREF
INL
INC
INR
PWSW
DCODE2
DCODE1
DCODE0
TET4
TST3
D1FI
D1FO
SDTI
SDTO
BCLK
LRCK
MCLK
ROUT
LOUT
VRDA
NC
NC
VRAD
PGAR
ADCR
VMCR
VMCL
ADCL
PGAL
CS
CCLK
CDTO
CDTI
DGND
VD
VB
VA
AGND
VCOM
NC
DZF
CMODE
PD
XRST
SSB
LIN1
RIN1
TST1
LIN2
RIN2
TST2
LIN3
RIN3
AD/DA-CONVERTER
MIC
0
20
2
12
25
26
27
28
29
30
31
32
33
34
35
36
(PLUG IN POWER)
(CHASSIS)
REG.
HIGH
LOW
SWITCH
MIC AMP
SENS
SWITCH
SENS
SWITCH
AUDIO GAIN
CONTROL
MUTE
CONTROL
BEEP
BEEP
BUFFER
(CHASSIS)
REMOTE
MAIN BOARD
MAIN BOARD
(2/3)
MAIN BOARD
(2/3)
IC301
IC302
IC303
IC305
IC805
IC306
MAIN BOARD (3/3)
1
4
5
3
6
2
1
4
5
3
6
2
1
4
5
3
6
2
(1/3)
(1/3,2/3)
(1/3,2/3)
(1/3)
16
*
*
*
*
Ref. No. JEW AEP/UK
FB302
FB303
FB304
C306
FB (HM102)
FB (HM102)
FB (HM102)
0.1 (B)
0
Ω
0
Ω
0
Ω
1000p (B)
1.2(0.4)
1.2(0)
0
(0.3)
1.6(0)
0(0.4)
0
(0.3)
0
0
0
0
0
2.8
2.8
2.8
2.8
2.8
2.8
2.8
1.1
1.1
1.1
0
1.0
2.8
2.8
2.8
1.0
2.0
1.4 1.4 1.3 1.0
(0)
1.1(0.7)
2.8
0
0
2.8
2.8
2.7
2.7
1.3
1.1(1.3)
1.2
(1.3)
2.7
2.7
1.3
1.3
1.3(0.1)
1.3(0)
1.3(0)
1.3(0.1)
1.3(0.6)
1.3(0.6)
2.8
2.8
0
1.1 1.2
1.2
2.8
1.1
1.2
0.1
2.9
2.9
1.1
1.0
1.0
2.4
1.1
2.4
2.7
1.1
1.1
1.1
2.0
1.1
1.1