Toa S5.5-RX A1, S5.5-RX C1, S5.5-RX D3, S5.5-RX B2 Service Manual
TABLE OF CONTENTS
S5.5-RX
1
No.833-73-817-20
UHF WIRELESS TUNER
S5.5-RX A1, B2, C1, D3
HS0910
NOTE ON REPAIR WORK SAFETY ......................................................................................................... 2
SPECIFICATIONS ..................................................................................................................................... 2
NOMENCLATURE AND SET-UP .............................................................................................................. 3
BLOCK DIAGRAM ..................................................................................................................................... 4
SCHEMATIC DIAGRAMS
• MAIN PCB ........................................................................................................................................... 5
• LED PCB ............................................................................................................................................. 9
MOUNTING DIAGRAMS AND PARTS LIST
• MAIN PCB ......................................................................................................................................... 10
• PARTS LIST (MAIN PCB) ................................................................................................................. 10
• LED PCB ........................................................................................................................................... 14
• PARTS LIST (LED PCB) ................................................................................................................... 14
EXPLODED VIEW AND PARTS LIST ..................................................................................................... 15
TABLE OF CONTENTS
Update history
S5.5-RX
2 NOTE ON REPAIR WORK SAFETY 2SPECIFICATIONS
• Accessories
Power Source AC mains (supplied AC adapter must be used)
Power Consumption 300 mA (13 V DC)
Receiving Frequency 692 - 852 MHz (*2), UHF
Channel Selectable 10 banks, 24 frequencies max / bank (the number of channels may differ
from country to country)
Receiving System Double super-heterodyne
Diversity System Space diversity (true diversity)
Audio Output XLR-3-32 type connector
LINE: -22dB(*1), 600 Ω, balanced
MIC: -62dB(*1), 600 Ω, balanced
Phone jack
-28 dB(*1), 600 Ω, unbalanced
Antenna Input 75 Ω, BNC
Antenna Phantom Power 9 V DC, 30mA (max)
Receiving Sensitivity Under 0 dBμV (12 dB SINAD)
Squelch Sensitivity 6 - 36 dBμV variable
Squelch System Using together of noise SQ, carrier SQ and tone SQ
Tone Frequency 32.768 kHz
Indicator LCD, Power lamp, Mute lamp, ANT A/B lamp,
S/N Ratio Over 110dB (A weight)
Harmonic Distortion Under 1% (typical)
Frequency Response 50 Hz - 20 kHz, +-3 dB
Function Audio Low-cut, High-boost and phase reverse
Battery indicator (7steps)
Headphone output
Infra-Red link port
Channel check
Monitoring software with USB connectivity
Operating Temperature -10°C to +50°C (14°F to 122°C)
Finish Chassis: steal, dark gray, painting
Front panel: aluminum, silver, almite
Dimensions 210(W) x 46(H) x 210(D) mm
Weight 1.3kg
AC adapter (*3) ......................................................... 1
Wireless Antenna ...................................................... 2
Rack mount kit ........................................................ 11
(*1)
0 dB = 1 V
Follow the instructions below, both to prevent accidents when making repairs and to ensure post-repair
product safety.
Do not apply voltages other than those specified for the equipment or its components.
Applying voltages other than the rated voltage could cause electrical breakdown or over-current, possibly resulting in electric shock or fire.
Use specified parts and components.
Be sure to use only specified parts when replacing parts indicated by the mark in the circuit diagram or parts list. Because such parts have been designed for safety in terms of their incombustibility
and dielectric strength, using parts other than those specified could result in a fire.
After replacing parts, be sure to return the new parts and any other affected parts
to their previous configuration.
Check that all screws, parts, and wiring removed or changed during servicing have been restored to
their original states. Also, confirm that no damage has occurred around the serviced area.
Do not modify the design of circuit boards or other electronic elements.
Modifying circuit boards could cause electric shock or result in a fire hazard due to excessive heat
build-up. User modification automatically exempts the manufacturer from all personal and property liability caused by such modification, and the user who carried out such modification shall be solely
responsible for such accidents.
Since lead can become an environmental contaminant, this unit has been manufactured using solders
that contain no lead in the printed circuit board.
[While conventional solders are alloys of zinc and lead, lead-free solder is comprisend of an alternative alloy that contains no lead.]
NOTES
• Circuit boards using lead-free solder bear a lead-free solder designation. To maintain the integrity
of this designation, be sure to use lead-free solder when repairing such lead-free solder circuit
boards. Boards not marked with the lead-free solder designation may legally be serviced using
conventional solders.
• Because the melting point of lead-free solder (approximately 220°C) is 30°C-40°C higher than that
of conventional (lead-zinc alloy) solder, it tasks little longer to melt. It is recommended that a soldering iron with controllable temperature be used and set to 20°C higher than would normally be
used with conventional solder.
Identifying printed circuit boards that use free-lead solder
Printed circuit boards that use lead-free solder have the following designation printed or stamped on
either side of the board.
• About lead-free solders
Type Frequency Range
(*2) AC Adapter(*3)
A1 692 - 722 MHz, UHF
120 V AC, 60 Hz
B2 740 - 752 MHz, UHF –
C1 794 - 830 MHz, UHF
230 V AC, 50 Hz
D3 830 - 865 MHz, UHF
230 V AC, 50 Hz
NOTE ON REPAIR WORK SAFETY
SPECIFICATIONS
NOMENCLATURE AND SET-UP
S5.5-RX
3 3
NOMENCLATURE AND SET-UP
1. Attach the supplied antennae (2) to the rear panel TNC antenna connectors as shown in above illustra-
tion.
2. Connect the AC/DC adaptor into the DC inlet as marked on the rear panel using the attached cable strain
relief. Observe the front panel on-off switch surround is illuminated red.
3. Connect the rear panel AF output from either the 1/4" Jack or XLR to your mixing console or amplifier.
Note: the XLR balanced output can be switched for either mic or line. The system can be also monitored
from the headphone socket using the "Jog-Wheel" to adjust Volume level.
4. Switch On-Off switch to "On" position and the receiver will default to initial setting as per illustration above.
(BK1.01)
The system is now ready for use.
Diversity switch A/B indicators
Infra-red port
Power switch indicator
Power On/Off
LCD
Jog wheel
Mute indicator
Headphone output
Front View
DC inlet 1/4” jack output
DC strain relief Mic/Line switch
USB port XLR output
Rear View
1
A
B
C
D
E
F
G
H
23 654 789 11121310
I
S5.5-RX
4 4
BLOCK DIAGRAM
1
A
B
C
D
E
F
G
H
23 654 789 11121310
I
BLOCK DIAGRAM
Antenna A
TNC
Antenna B
Phantom A
PSU
Phantom B
PSU
TNC
BP filter
(DF1)
VCO SW
(TR5)
10 MHz Ref
(Y3)
BP filter
(DF3)
RF Amp
(TR1)
VCO
Loop FIlter
PLL
(IC3)
RF Amp
(TR23)
BP filter
(DF2)
RF Amp
(TR6)
BP filter
(DF4)
1st
Mixer
LPF
LPF
1st
Mixer
BP filter
BP filter
2nd
Mixer
45.175MHz
2nd
Mixer
BP filter IF Amp BP filter 10.7 Demod
RSSI A
RSSI B
BP filter IF Amp BP filter 10.7 Demod
usb interface
uP
Encoder
Display
IR Interface
Memory
USB Type B
CHA AF Buf
Comparator
CHB AF Buf
Microprocessor interface bus
AF Switch Mute Sw Lo-cut Phase invert
Noise Mute
Tone Mute
DC Jack
Battery monitor
LPF
PSU
DIODE protection
DC PSU
Dev Bar Vu Bar
Compander
10V Supply
5V Supply
De-emphasis
Powerup mute AF Amp
Headphone Amp
PHONEJACK
High boost
XLR
output terminal
mic/line SW
PHONEJACK
Microprocessor interface bus
1
A
B
C
D
E
F
G
H
23 654 789 11121310
I
S5.5-RX
5 5
SCHEMATIC DIAGRAMS
• MAIN PCB
SCHEMATIC DIAGRAMS
5V_D
TESTPOINTTESTPOINT
1
R268
100
DC inlet
R67
10K
C206
1n
L1
FSLU-82n
J1
BNC
J2
C21
DNP
DNP
R17
1uF_M
R16
1uF_M
R250
DNP
111
C195
1n
J5
BNC
J6
DNP
R71
2K2
10
11
12
13
R256
1K
R72
2K2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
100n
IC7
1
TXD
2
DTR
3
RTS
4
VCCIO
5
RXD
6
RI
7
GND
8
NC
9
DSR
DCD
CTS
CBUS4
CBUS2
CBUS314USBDP
FT232RL
C84
100n
CON1
1
2
3
4
USB_TYPEB
CON2
DC-J
R212
10K
RH2
RH3
RE1
RE0
RG0
RG1
RG2
RG3
MCLR
RG4
GND
VDD
RF7
RF6
RF5
RF4
RF3
RF2
RH7
RH6
C224
USB port
LCD_CONTRAST_PWM
C237
100n
L20
FSLU-82n
C196
DNP
80
RH1
RH521RH4
C225
100n
OSCI
OSC1
TEST
AGND
NC
CBUS0
CBUS1
GND
VCC
RESET
GND
3V3OUT
USBDM
2
1
PHANTOM_ENABLE
Antenna B
Section A
For the enlarged view,
see p. 6
5V_D
IC26
1
8
A0
5V
2
7
A1
WP
3
6
A2
SCL
5
GND4SDA
24LC16
JP1
1
GND
1
2
5V_D CHAN_B_LED_CL
2
3
LCD_CONTRAST
3
4
DISPLAY_RS
4
5
DISPLAY_RW CHAN_B_LED
5
6
DISP_ENABLE CHAN_A_LED
6
7
RD0
7
8
RD1
8
9
RD2
9
10
RD3
10
11
RD4 5V_D
11
12
RD5 RD0 RD1
12
13
RD6 CHAN_B_LED RD2
13
To LED PCB
JP1
14
RD7 CHAN_A_LED RD3
14
15
5V_D PWM RD4
15
16
LCD_LED_A ENCODE_SWITCH RD5
16
17
ROL_REDLED ROL_LED RD6
17
18
ROL_GRNLED DATA_LED RD7
18
19
QUAD_A
19
20
QUAD_B
20
21
ENCODE_SWITCH
21
22
IR_TXBUF
22
23
CHAN_A_LED_CL
23
24
CHAN_B_LED_CL
24
25
ROL_POWGRN
25
26
ROL_POWRED
26
5V_D
55ribbon
R77
DNP
LCD_LED_A USB_TX SYNTH_DAT
R248
56r_1206
5V_D
R63
R64
R65
10K
1
K
0
5V_D
5V_D
10V
R243
10K
TR40
KTC4075
R245
470r_1206
R68
10K
TR12
KTA2014
R70
100
C80
10K
DNP
C81
DNP
QUAD_B
QUAD_A
ENCODE_SWITCH
D2
1
3
MCLR DISPLAY_RS
2
BAV99W
JP2
MCLR
1
5V_D
2
GND
3
RB7
4
RB6
5
6
MPLAB_SOCK
R69
10K
IR_TXAND
TESTPOINT
1
1
IR_TXBUF
TR39
KTA2014
R244
1K2
R258
10K
TR42
R242
KTC4075
10K
ROL_REDLED
ROL_GRNLED
u_OSC1_OUT
R251
DNP
R249
DNP
TESTPOINT
1
1
PHANTOM_ENABLE
R252
22K
WP
SCL
SDA
Antenna A
CHAN_A_LED_CL
TONE_MUTE SDA
DISP_ENABLE SCL
NOISE_MUTE SYNTH_EN
USB_RX SYNTH_CLK
LCD_CONTRAST_PWM HEAD_CLOCK
MCLR RB6
UART_PWM
GND
5V_D u_OSC1_IN
UP_DOWN 5V_D
PHANTOM_ENABLE RB7
USB_RTS QUAD_B
USB_CTS QUAD_A
B_SWITCH LO_CUT
A_SWITCH WP
MASTER_MUTE
5V_D IR_TX
GND
DEV_METER
VU_METER PHASE_INVERT
RSSI_A HI_BOOST
RSSI_B 5V_D
USB_RX
USB_RTS
5V_D
USB_TX
GND
USB_CTS
USB_VCC
USB_VCC
USBDM
USBDP
GND
ROL_LED
5V_A
R35
C46
5V_A
TR31
KTC4075
10V
TR32
R12
KTC4075
1K
R15
15r_1206
TR35
2SD1622
R13
4K7
R11
330
1
1
HEADER1
1
1
HEADER1
R3 1K8
C9
1n
R66
470
C19
5p
C8
22p
LCD_CONTRAST AUDIO_B
TR29
KTC4075
R209
TR30
1K
KTC4075
R211
15r_1206
TR28
2SD1622
R208
R210
330
4K7
Y3
1
OSC1
GND2OSC2
10MHz_SM
C200
10p
C199
3-10pF
74
70
77
79
67
73
68
71
78
RD169GND
RD072RE7
RE575RE476RE3
RH0
RD2
VDD
RE6
RE2
AVDD
AVSS
GND31VDD
RF0
RA3
RF1
RA228RA129RA0
RA533RA434RC135RC036RC637RC7
30
22
24
27
25
32
23
26
5V_D
C226
C227
C228
C229
100n
100n
100n
100n
28
27
26
25
24
23
22
21
20
19
18
17
16
15
C83
100n
D8
1SR139
12V
C219
100n
C194
3p
CAN1
wt500rfcan
1
2
3
4
5
6
7
10V
C197
3p
10MHz Ref
62
VRZ
RD763RD664RD565RD466RD3
RJ0
RJ439RJ5
38
GND
GND
5V_D
GND
USBDM
USBDP
+
C2
220u_ELEC
R207
0R
C220
1
1
PLL
IC3
FL
CP
GND
GND
FIN
FIN
VCC
OSC8GND
LMX2316
SYNTH_CLK
SYNTH_DAT
SYNTH_EN
5V_A
C10
10n
1
1
4
GND
3
61
IC6
60
RJ2
59
RJ3
58
RB0
57
RB1
56
RB2
55
RB3
54
RB4
53
RB5
52
RB6
51
GND
50
OSC2
49
OSC1
48
VDD
47
RB7
46
RC5
45
RC4
44
RC3
43
RC2
42
RJ7
41
RJ6
PIC18F8722
40
IC23
KIA10V
IN1OUT
IC2
LM2940
IN1OUT
L23
DNP
1
L22
DNP
L21
DNP
VP
VCC
LD
LE
DATA
CLOCK
CE
R4
18
4u7_ELEC
R213
0r
L24
DNP
1
L25
DNP
L26
DNP
C198
22p
GND
2
GND
2
100p
BP filter
DF1
MB33P-808
1
2
BPF
3
10V
R10
TR5
100
2SC4555
R2
10K
R14
22K
C91
10u_ELEC
+
C7
C18
1n
100p
C207
10u_ELEC
R84
C96
+
1K8
4u7_T
16
15
14
13
12
11
10
9
+
C95
u_OSC1_IN
u_OSC1_OUT
GND
GND
u_OSC1_OUT
DISPLAY_RW
GND
R241
1K
D3
RED_LEDSM
5V_D
5V_A TONE_MUTE
GND
ROL_POWGRN
ROL_POWRED
3
3
C94
R224
330n
1K8
C11
1n
C221
100p
DATA_LED
5V_D
5V_A
R246
470r_1206
R247
1K2
+
C3
22u_E
C1
+
10n
VCO1
1
VCC
OUT
2
GND
GND
VT3MOD
MVE774
C6
C93
100p
330n
C12
R1
100p
100
BP filter
DF3
MB33P-808
1
2
BPF
3
UART_PWM
IR_TX
1
1
TESTPOINT
IR_TXAND HEAD_CLOCK
A_SWITCH
AUDIO_A
AUDIO_B LO_CUT
B_SWITCH
S2
Power switch
5V_A
3
+
2
-
R86
150K
R85
33K
+
C99
10u_ELEC
5V_A
5
+
6
-
R93
150K
R92
33K
+
C103
10u_ELEC
10V
6
5
4
8 4
C98
18p
22u_ELEC
8
4
C23
1n
R20
15K
C22
6p
L2
LL1608-6N8
C5
10p
C20
100n
C152
1n
R181
15K
C151
6p
L12
LL1608-6N8
IC27C
8
9
4011
IC9A
4580
1
100K_POT
C101
7
IC9B
4580
C102
18p
R95 DNP
IC24
KIA5V
IN1OUT3GND
IC21
LM7805
IN1OUT
IC25
KIA5V
IN1OUT
IC1
LM7805
IN1OUT
C62
DNP
R87
C230
100n
R94
100K_POT
C25
5V_A
1n
R19
330
C24
1n
L3
LL1608-12N
R18
8r2
BP filter
DF2
C27
MB33P-808
4p
TR1
1
C57
1n
C56
100p
1
R253
DNP
13
12
R96
47K
5
6
5V_A
BP filter
DF4
MB33P-808
TESTPOINT
1
2
1
1
R240
1206
BPF
R41
220
R39
27K
C92
7p
BPF
IC27A
4011
LL1608-6N8
3
C59
10n
C58
1n
RF amplifier
TR6
2SC5085
3
C181
7p
2
L5
R40
470
2
3
C142
2u2_ELEC
TESTPOINT
TESTPOINT
+
1
1
R265
0r
R74
100K
C60
100p
C158
1n
L15
LL1608-6N8
1
2SC5085
RF
amplifier
C26
DNP
C55
2r2
R38
100
L11
LL1608-3n3
C154
5V_A
1n
R180
330
C153
1n
L13
LL1608-12N
R179
8r2
C156
4p
TR23
2SC5085
RF
amplifier
C155
DNP
10
R263
10K
IC4A
4066_5V
1 2
2.5VREF
R234
R88
47K
IC4B
DNP
4066_5V
11 10
C100
1uF_M
R89
47K
R90
47K
+
R91
47K
2.5VREF
R235
47K
C104
IC4C
1uF_M
4066_5V
4 3
IC4D
4066_5V
8 9
R264
10K
2
5V_A
3
GND
+
C218
22u_E
2
3
GND
2
5V_D
3
GND
C4
+
22u_E
2
C30
5V_A 5V_A
10n
R23
560
C222
R22
1n
22K
L4
C29
LL1608-180N
1n
R21
10K
C28
7p
R182
10K
C157
7p
1
C31
22p
R24
8r2
C35
56p
TR7
2SC5085
C32
DNP
C63
7p
L8
LL1608-10nL9LL1608-10n
C644pC658pC66
1
L27
DIVCOIL_D
L18
L19
LL1608-10n
LL1608-10n
C1884pC1898pC190
C159
5V_A 5V_A
10n
R184
560
C223
R183
1n
22K
L14
LL1608-180N
C160
22p
R185
8r2
C164
56p
L16
TR27
0r
2SC5085
C161
DNP
IC27D
12
11
13
4011
IC27B
5
4
6
4011
R254
0r
5V_A 5V_A
R103
100
+
R101
C108
R100
100K
R215
22K
47u_ELEC
1 2
13
IC11A
4066
10V 10V
R214
10K
TR33
KTC4075
MASTER_MUTE
C143
C144
220p
220p
C1331nC1341nC135
R152
3K9
R73
R97
100K
100K
C105
220n
100K
11 10
R216
10K
TR34
KTC4075
R217
10K
R168
15K
R169
3K9
R238
10K
1n
C106
220n
SAW1
L6
0r
1
IN
GND
2
GND
GND
GND3OUT
C33
DNP
MKFC55_875
4p
CAN2
DIVSHIELD
4p
SAW2
1
IN
GND
2
GND
GND
GND3OUT
C162
MKFC55_875
DNP
R255
DNP
R102
R104
100K
82K
C110
C111
C109
100n
100n
22n
R105
22K
12
IC11B
4066
TESTPOINT
5V_A
TR18
KTC4075
C145
1n
R239
10K_POT
5V_A
R155
47K
R156
1K5
R153
56K
C107
220n
R108
DNP
R107
DNP
1
+
C113
DNP
1
C146
10n
R171
12K
C147
10n
R170
680K
TR19
KTC4075
C216
10n
R157
220K
TR15
KTC4075
C136
1n
R154
R236
4K7
270K
R218
10
5V_A
C235
100n
5
+
7
6
-
IC10B
2904
R27
560
R26
56
R25
27K
C34
C36
1N
56P
6
5
4
L7
LL1608-100N
5V_A 5V_A
C85
10n
R76
1K2
R43
150K
C68
10n
TR8
2SC4399
C67
22p
L10
Y1
820n
45.175MHz
C69
1n
R188
560
R187
56
R186
27K
C163
56P
6
5
4
C165
1N
L17
LL1608-100N
10V
R110
10K
10V
3
+
2
-
C112
0r
R106
DNP
R172
1K
5V_A 5V_A
8
3
+
2
-
4
C137
10p
D6
1
2
BAV99W
8 4
C233
100n
1
2
R98
47K
R99
220K
4u7_ELEC
R233
DNP
1
IC15A
4580
R158
2K2
3
T5
1
2
334
TONETRAP
IC12A
4580
3
1
C82
1
D7
BAV99W
TESTPOINT
IC12B
8 4
4580
5
+
R109
6
-
10K
R111
10K
R176
100K
TR21
KTC4075
R173
10K
2
1
1
C138
R159
12p
2K2
6
6
5
5
4
5V_A
3
+
2
-
+
R75
DNP
C38
10n
C37
1n
C90
1N
TR2
2SC4399
C167
10n
C166
1n
TR24
2SC4399
R115
10K
PHASE_INVERT
R160
220K
Y2
32.768KhZ
R161
270K
1
IC10A
2904
C41
5V_A
10n
R30
100
R29
10K
TR3
FH102
T1
BALUN_D
C39
100p
R28
C89
4K7
10n
R46
R47
220
470
R44
270
R45
1K8
C70
33p
R204
R205
220
470
C191
100p
R190
10K
TR25
BALUN_D
FH102
T3
R189
4K7
C185
10n
C186
1N
C40
10n
C42
100p
C43
100p
R83
1K
C71
1n
C72
1n
5V_A
C170
100p
C171
100p
R203
1K
CF1
SFE10M7KA00
T2
1 3
BALUN
R191
100
T4
BALUN
2
R81
DNP
C169
10n
C168
10n
CF3
SFE10M7KA00
1 3
2
R202
390
R201
DNP
Section B
For the enlarged view,
see p. 7.
8 9
IC11D
6
4066
R113
C231
100n
47K
R114
47K
+
C115
4u7_ELEC
R112
1K
4 3
7
10V
C114
47p
R117
10K
TR38
KTC4075
TESTPOINT
R237 150K
C150
10n
R174
4K7
C148
C149
10n
330n
5V_A
8 4
5
+
7
6
IC15B
4580
R162
22K
R163
4K7
C217
680p
R7
15K
C15
330p
C13
C14
IC11C
330p
330p
5
4066
R118
10K
R116
22K
TR37
KTC4075
1
1
R175
4K7
TR20
KTC4075
R177
100K
TR22
KTC4075
C139
R164
10n
2K2
10V
R6
15K
8 4
3
+
2
C16
-
IC19A
330p
4580
R119
R120
15K
15K
R5
150
R122
12K
R121
1K
C116
100n
R178
100K
5V_A
R166
10K
R167
TR16
KTC4075
R165
10K
4K7
C140
10n
10n
R31
2K2
C45
10n
R33
330
R80
100K
C44
10n
TR4
2SC4399
R82
C47
390
R32
10n
CF2
470
SFE10M7KA00
R259
100
R200
100K
C172
10n
R262
100
C232
100n
1
R123
12K
C117
DNP
5V_A
TR17
KTC4075
+
C141
2u2_ELEC
1 3
2
R260
200r_POT
C174
5V_A
10n
R192
2K2
C173
10n
R194
330
TR26
2SC4399
C175
R193
470
10n
CF4
SFE10M7KA00
1 3
2
R261
200r_POT
R135
10K
C119
1n
10V
8 4
R124
12K
5
+
6
C118
-
220p
TESTPOINT
1
1
TESTPOINT
1
1
TESTPOINT
1
1
IC19B
4580
NOISE_MUTE
PWM
C50
10n
C86
220p
10
8
IFO
STRQ9SD
REG2GND
IFI
C48
1
3
10n
+
C49
10n
C88
10u_ELEC
C53
100n
C178
10n
C182
220p
10
8
9
STRQ
SD
REG2GND
IFI
C176
1
3
10n
+
C177
10n
C184
10u_ELEC
C192
100n
C127
220n
C126
100n
D4
R134
1
150K
2
BAV99W
C121
1u_M
7
R125
DNP
C120
4u7_M
100
C51
10n
1
CD1
R34
107DISCRIM
4K7
2
6
7
DET
AFO
5V_A
IC5
LA1225
SLVL
4
R195
4K7
SLVL
4
R132
47K
3
C122
1u_M
R79
VCC
10K
5
C52
10n
C54
10n
AFO6DET7IFO
IC16
LA1225
VCC
5
C180
10n
C193
10n
10u_ELEC
R225
180K
+
R78
C87
10K_POT
10u_ELEC
R37
47K
R36
15K
5V_A
R196
100
C179
10n
CD2
107DISCRIM
21
5V_A
R199
10K
R227
20
19
18
17
16
15
14
13
12
11
HI_BOOST
R206
15K
+
C236
100n
IC14
VCC
+OP2
-OP2
OUT OP2
RECT2 IN
RECT2
OUT2
COMP2 I/P
SUM2 O/P
GC2 I/P
SA575DK
R142
47K
+
R223
100K
C123
22u_ELEC
R198
10K_POT
180K
R197
47K
10V
3
+
2
-
R141
56K
R133
47K
+OP1
-OP1
OUT OP1
RECT1 IN
RECT1
OUT1
COMP1 I/P
VREF
GC1 I/P
GND
TESTPOINT
1
1
+
C183
10u_ELEC
R139
100
C205
R226
100K
4
-
2
+
3
IC8A
2904
8
C187
47p
6
5
5V_A
TESTPOINT
C234
100n
8 4
1
IC13A
MC33078
R140
100K
R137
22K
1
2
3
4
5
6
7
8
9
10
R232
10K
VC01
DF1,2,3,4 MBF705
TESTPOINT
1
1
AUDIO_A
C97
47p
TESTPOINT
1
1
R266
1K
1
10u_ELEC
TESTPOINT
R228
100K
-
+
84
1
1
3
C17
10V
47u_ELEC
BAV99W
1
1
7
IC8B
2904
R143
10K
D5
+
C215
10u_ELEC
R149
1K
C213
RSSI_A
C244
DNP
TESTPOINT
1
1
R267
1K
RSSI_B
C245
DNP
DEV_METER
VU_METER
C129
220n
R136
22K
10V
R8
18K
C208
47u_ELEC
1
+
R138
47K
2
R9
22K
2.5VREF
R128
R129
R231
470
1K
DNP
R126
1M
TR14
2SC4555
1
2
+
10V
R131
DNP
R127
10K
C125
DNP
TR36
KTC4075
R49
4K7
R48
2K2
2
3
R54
10K
R151
12K
+
6
C75
10u_ELEC
5
10V
D1
BAV99W
1
2
R148
10K
10u_ELEC
+
+
C214
47u_ELEC
AB D
MVE664 MVE664 MVE774 MVE774
MBF735 MBF812 MBF848
Section C
For the enlarged view,
see p. 8.
UP_DOWN
5V_A
R229
22K
C128
2u2_ELEC
+
10V
8
IC13B
MC33078
5
+
6
-
4
C124
47n
IC22
IN_OUT
OUT_IN
GND3CONT
TC4S66F
C73
680p
1
+
IC20A
4580
84
R51 2K2
R50 2K2
C74
1n5
7
+
IC20B
4580
84
3
C241
TR13
KTA2014
Type
C209
10u_ELEC
+
R230
22K
7
R144
C210
10K
47p
R222
DNP
R130
10K
10V
5
VCC
4
C79
R52
22u_ELEC
47
+
R55
10K
R53
47
2SC4555
R56
10K
TR10
KTA2014
R147
+
100K
+
C130
10u_ELEC
C78
22u_ELEC
C242
100n
+
TR11
C201
1uF_M
VCO
switch
C131
10u_ELEC
TR9
2SC4555
C202
220n
R145
10K
+
10u_ELEC
IC18
1
VOUT1
2
VIN1
3
BYPASS
4
CLOCK
GND5UP/DOWN
LM4811
C203
220n
R146
DNP
C132
10u_ELEC
+
R150
47K
C76
100p
C77
100p
C
Note: “ “ represents the ground on the circuit board.
C204
R57
10K
mic/line
switch
R60
10K
5V_A
C240
+
10uF_ELEC
D9
3
BAV99W
R221
100K
1
C243
10n
10
VCC
9
8
VIN2
7
6
L28
L29
L30
600r@100MHz
Headphone output
XLR output terminal
C211
100u_ELEC
+
+
C212
100u_ELEC
R220
10K
600r@100MHz
HEADPHONE_D
XLR1
XLR_D
jack output
2
3
5V_A
+
VOUT2
SHUTDOWN
600r@100MHz
C239
1n
R219
10K
R58
100
R59
DNP
S1
R62
DNP
R61
100
J3
PHONEJACK_D
C238
1n
J4
21
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