JVC RX-6030VBK User manual

SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD. No.22026
2003/03
RX-6030VBK
AUDIO/VIDEO CONTROL RECEIVER
22026200302 RX-6030VBK
TABLE OF CONTENTS
1 Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2 Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3 Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
4 Description of major ICs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Area suffix
J ----------------- U.S.A.
C ----------------- Canada
TA/NEWS/INFO
DISPLAY MODE
D IGIT A L AU TO SP K
O N E TO UCH OPE RA TIO N BA SS B OOST
P R O LOGI CD SP H .P H O N E AU TO M U TI N GT UN E D STE R EO T AN EWS I N FO VOL U ME
I N P U T A TT EO N RD S SLEEP
CH
12
ANA LOG
L
LI N E AR P C M
D IGIT A L
C R
S.WF R LFE
LS R SS
ST ANDB Y
ST
ANDB Y/O N
P H O N ES
D IGIT A L
PRO LOGIC
S URR O UND
D
SP
D V D M U LTI
SPE
AK E R S
O N /OFF
S UB WOOFE R O U TFM MO D EMEMO R Y
O N /OFF
FM/ A M T UN I N G
D V D V CR CD FM A MT A PE/ CDR TV SO UND
S URR O UND / D SP
OFF
D IMME R
I N P U T D IGIT A L
R X AUD IO/VI D EO C O N T R OL R E C EIVE R
SETTI N GM
U LTI J OG
SET
ADJU ST
EXIT
I
N P U T ANA LOG
M
A STE R VOL U ME
I
N P U T A TT
FM/ A M R ESET
SO URC E NA ME

RX-6030VBK
1-2 (No.22026)
SECTION 1
Important Safety Precautions
1.1 Safety Precautions
(1) This design of this product contains special hardware and
many circuits and components specially for safety purposes.
For continued protection, no changes should be made to the
original design unless authorized in writing by the man-
ufacturer. Replacement parts must be identical to those
used in the original circuits. Services should be per-
formed by qualified personnel only.
(2) Alterations of the design or circuitry of the product should
not be made. Any design alterations of the product should
not be made. Any design alterations or additions will void
the manufacturers warranty and will further relieve the
manufacture of responsibility for personal injury or property
damage resulting therefrom.
(3) Many electrical and mechanical parts in the products have
special safety-related characteristics. These characteris-
tics are often not evident from visual inspection nor can the
protection afforded by them necessarily be obtained by us-
ing replacement components rated for higher voltage, watt-
age, etc. Replacement parts which have these special safety
characteristics are identified in the Parts List of Service Manu-
al. Electrical components having such features are iden-
tified by shading on the schematics and by ( )onthe
Parts List in the Service Manual. The use of a substitute re-
placement which does not have the same safety character-
istics as the recommended replacement parts shown in the
Parts List of Service Manual may create shock, fire, or oth-
er hazards.
(4) The leads in the products are routed and dressed with ties,
clamps, tubings, barriers and the like to be separated from
live parts, high temperature parts, moving parts and/or
sharp edges for the prevention of electric shock and fire
hazard. When service is required, the original lead routing
and dress should be observed, and it should be confirmed
that they have been returned to normal, after reassembling.
(5) Leakage shock hazard testing)
After reassembling the product, always perform an isolation
check on the exposed metal parts of the product (antenna
terminals, knobs, metal cabinet, screw heads, headphone
jack, control shafts, etc.) to be sure the product is safe to
operate without danger of electrical shock.
Do not use a line isolation transformer during this check.
• Plug the AC line cord directly into the AC outlet. Using a
"Leakage Current Tester", measure the leakage current
from each exposed metal parts of the cabinet, particular-
ly any exposed metal part having a return path to the
chassis, to a known good earth ground. Any leakage cur-
rent must not exceed 0.5mA AC (r.m.s.).
• Alternate check method
Plug the AC line cord directly into the AC outlet. Use an AC
voltmeter having, 1,000 ohms per volt or more sensitivity in
the following manner. Connect a 1,500 ohm 10W resistor
paralleled by a 0.15 µF AC-type capacitor between an
exposed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the AC
voltmeter.
Move the resistor connection to each exposed metal part,
particularly any exposed metal part having a return path to
thechassis,andmeasuretheACvoltageacrosstheresistor.
Now, reverse the plug in the AC outlet and repeat each
measurement. Voltage measured any must not exceed 0.75
V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).
1.2 Warning
(1) This equipment has been designed and manufactured to
meet international safety standards.
(2) It is the legal responsibility of the repairer to ensure that
these safety standards are maintained.
(3) Repairs must be made in accordance with the relevant
safety standards.
(4) It is essential that safety critical components are replaced
by approved parts.
(5) If mains voltage selector is provided, check setting for local
voltage.
1.3 Caution
Burrs formed during molding may be left over on some parts
of the chassis.
Therefore, pay attention to such burrs in the case of pre-
forming repair of this system.
1.4 Critical parts for safety
In regard with component parts appearing on the silk-screen
printed side (parts side) of the PWB diagrams, the parts that are
printed over with black such as the resistor ( ), diode ( )
and ICP ( ) or identified by the " " mark nearby are critical
for safety.
When replacing them, be sure to use the parts of the same type
and rating as specified by the manufacturer. (Except the JC version)

RX-6030VBK
(No.22026)1-3
1.5 Importance administering point on the safety
Caution: For continued protection against risk of
fire, replace only with same type 6.3A/125V for
F201, 2A/125V for F202 and F203.
This symbol specifies type of fast operating fuse.
Precaution: Pour eviter risques de feux, remplacez
le fusible de surete de F201 comme le meme type
que 6.3A/125V, et 2A/125V pour F202 et F203.
Ce sont des fusibles suretes qui functionnes rapide.
^
Secondary parts
Primary part
CN251
D205
FC221
FC222
FC231
FC232
R201
RY201
110
111 112113 114120 121
122 130131
B192
B191
B160
B159
2A-125V
2A-125V
F 203
F 202
FC211
FC212
6.3A-125V
B104
PW103
PW101
B103
B102
B101
B106
B105
PW102
PW105
B108
B107
PW104
B109
B110
TA201
TA202
R1
EP1

RX-6030VBK
1-4 (No.22026)
SECTION 2
Disassembly method
2.1 Removing the top cover
(See Fig.1)
(1) From the right and left sides of the main body, remove the
four screws Aattaching the top cover.
(2) From the back side of the main body, remove the three
screws Battaching the top cover.
(3) Remove the top cover in the direction of the arrow 2 while
extending the lower sections of the top cover in the direc-
tion of the arrow 1.
Fig.1
2.2 Removing the front panel assembly
(See Figs.2 and 3)
• Prior to performing the following procedure, remove the top
cover.
(1) Disconnect the card wire from the connector CN402 on the
audio board. (See Fig.2)
(2) Disconnect the card wire from the connector CN201 on the
power supply board. (See Fig.2)
(3) Remove the tie band and wire protection board fixing the
card wire. (See Fig.2)
(4) Remove the three screws Cattaching the front panel as-
sembly. (See Fig.2)
(5) From the bottom side of the main body, remove the four
screws Dattaching the front panel assembly. (See Fig.3)
(6) Remove the front panel assembly in the direction of the ar-
row. (See Fig.3)
Fig.2
Fig.3
B
A
A
2
1
1
Top cover
C C C
Front panel assembly Card wire CN201
Power
supply
board
Tie band
Wire
protection
board
Card
wire
CN402
Audio
board
DD
Front panel assembly

RX-6030VBK
(No.22026)1-5
2.3 Removing the rear panel
(See Fig.4)
• Prior to performing the following procedure, remove the top
cover.
(1) From the back side of the main body, remove the strain re-
lief from the rear panel in the direction of the arrow.
(2) Remove the twenty-five screws Eand four screws Fat-
taching the rear panel.
Fig.4
2.4 Removing the component board
(See Figs.5 and 6)
• Prior to performing the following procedure, remove the top
cover.
(1) From the top side of the main body, disconnect the parallel
wire from the connector CN511 on the S Video board. (See
Fig.5)
(2) From the back side of the main body, remove the four
screws Gattaching the component board. (See Fig.6)
Fig.5
Fig.6
E
E
F
E
EFF
F
Strain relief
Rear panel
CN511
S Video board
Parallel wire
Component board
G

RX-6030VBK
1-6 (No.22026)
2.5 Removing the DSP board, audio input board, DVD board and video board
(See Fig.7)
• Prior to performing the following procedure, remove the top
cover and rear panel.
(1) From the top side of the main body, disconnect the DSP
board from the connector CN481 on the audio board.
(2) Disconnect the audio input board from the connector
CN421 on the audio board.
(3) Disconnect the DVD board from the connector CN431 on
the audio board.
(4) Disconnect the video board from the connector CN441 on
the audio board.
Fig.7
2.6 Removing the S Video board and tuner board
(See Fig.8)
• Prior to performing the following procedure, remove the top
cover and rear panel.
(1) From the top side of the main body, disconnect the parallel
wire from the connector CN511 on the S Video board.
(2) Disconnect the S Video board from the connector CN461
on the audio board.
(3) Remove the tie band fixing the parallel wires, disconnect
the tuner board from the connector CN411 on the audio
board.
Fig.8
CN481
Audio board
DVD board Video board
CN421
A
udio input board
DSP board
CN431
CN441
S Video board
Tuner board
CN411
Tie band Parallel wires
CN511 Parallel wire
A
udio board
CN461

RX-6030VBK
(No.22026)1-7
2.7 Removing the audio board
(See Fig.9)
• Prior to performing the following procedure, remove the top
cover, rear panel, component video board, DSP board, audio
input board, DVD board, video board, S Video board and tuner
board.
(1) From the top side of the main body, disconnect the card
wire from the connector CN402 on the audio board.
(2) Disconnect the relay board from the connectors (CN291,
CN491) on the power supply board and audio board.
(3) Disconnect the wires from the connectors CN471, CN472
and CN473 on the audio board.
(4) Remove the three screws Hattaching the audio board.
(5) Loosen the screw Jattaching the audio board.
Fig.9
2.8 Removing the speaker terminal board
(See Fig.10)
• Prior to performing the following procedure, remove the top
cover and rear panel.
(1) From the top side of the main body, remove the solders
from the soldered sections a on the speaker terminal
board.
Fig.10
CN491
CN402
Audio board
Relay board Power supply board
H
J
CN473
CN471
CN472 CN291
Card
wire
H
Soldered sections a
Parallel wires
Speaker terminal board

RX-6030VBK
1-8 (No.22026)
2.9 Removing the main board
(See Fig.11)
• Prior to performing the following procedure, remove the top
cover.
(1) From the top side of the main body, remove the tie bands
fixing the wires.
(2) Remove the tie band and wire protection board fixing the
card wire.
(3) Remove the solders from the soldered section b on the
speaker terminal board attaching the parallel wires.
(4) Disconnect the relay board from the connectors (CN291,
CN491) on the power supply board and audio board.
(5) Disconnect the parallel wire from the connector CN241 on
the power supply board.
(6) Disconnect the wire from the connector CN251 on the pow-
er transformer board 1.
(7) Disconnect the wires from the connectors CN471, CN472
and CN473 on the audio board.
(8) Remove the screw J, two screws Kand four screws Lat-
taching the main board.
(9) Take out the main board.
Fig.11
2.10 Removing the heat sink
(See Figs.12 and 13)
• Prior to performing the following procedure, remove the top
cover and main board.
(1) Remove the ten screws Mattaching the heat sink. (See
Fig.12)
(2) From the reverse side of the main board, remove the two
screws Nattaching the heat sink. (See Fig.13)
Fig.12
Fig.13
LTie bands
Tie band
Wire
protection
board
CN241
CN251
CN291
Power
transforme
r
Power
transformer
board 1
L
J
K
L
CN473
CN471
CN472
CN491 Parallel wires
Power supply
board
Speaker terminal board
Soldered section b
Audio board
Card
wire
Main board
Tie band
Relay board
M
M
Heat sink
Main board
Heat sink
Main board
N
N

RX-6030VBK
(No.22026)1-9
2.11 Removing the center amp. board, front amp. boards (L/R) and rear amp. boards (L/R)
(See Figs.12 and 14)
• Prior to performing the following procedure, remove the top
cover and main board.
(1) Remove the ten screws Mattaching the heat sink. (See
Fig.12)
(2) Disconnect the center amp. board from the connector
CN321 on the main board. (See Fig.14)
(3) Disconnect the front amp. board (L) from the connector
CN311 on the main board. (See Fig.14)
(4) Disconnect the front amp. board (R) from the connector
CN312 on the main board. (See Fig.14)
(5) Disconnect the rear amp. board (L) from the connector
CN331 on the main board. (See Fig.14)
(6) Disconnect the rear amp. board (R) from the connector
CN332 on the main board. (See Fig.14)
Fig.14
2.12 Removing the power transformer
(See Fig.15)
• Prior to performing the following procedure, remove the top
cover.
(1) From the top side of the main body, remove the tie bands
fixing the wires.
(2) Remove the solders from the soldered section c on the
power transformer board 1.
(3) Remove the solders from the soldered sections d on the
power transformer board 2.
(4) Disconnect the wire from the connector CN251 on the pow-
er transformer board 1.
(5) Remove the four screws Pattaching the power transformer.
2.13 Removing the power/fuse board
(See Fig.15)
• Prior to performing the following procedure, remove the top
cover.
(1) From the back and top sides of the main body, remove the
screw Qand screw Rattaching the power/fuse board.
(2) Remove the solders from the soldered sections e attaching
the power cord.
(3) From the reverse side of the power/fuse board, remove the
solders from the soldered sections f attaching the wires.
Fig.15
Rear amp.
board (R) Front amp. board (R) Center amp.
board
Rear amp. board (L)
Front amp. board (L)
CN332 CN331 CN312 CN311 CN321 Main
board
CN251
Soldered
section c
Soldered
sections d
Soldered
sections e
Soldered
sections f
Tie band
Tie band
Power
transformer
Power
transformer
board 2
Power cord
P
P
R
Q
P
P
Power transformer
board 1
Power/
Fuse board

RX-6030VBK
1-10 (No.22026)
2.14 Removing the power supply board
(See Fig.16)
• Prior to performing the following procedure, remove the top
cover.
(1) From the top side of the main body, disconnect the parallel
wires from the connectors CN203 and CN241 on the power
supply board.
(2) Disconnect the card wire from the connector CN201 on the
power supply board.
(3) Disconnect the relay board from the connector CN291 on
the power supply board.
(4) Disconnect the parallel wire from the connector CN101 on
the headphone jack board.
(5) Remove the solders from the soldered section c on the
power transformer board 1.
(6) Remove the three screws Sattaching the power supply
board.
(7) Remove the power supply board from the hook g of the
chassis base bracket in the direction of the arrow, take out
the power supply board.
(8) Turn over the power supply board, remove the solders from
the soldered sections h attaching the wires.
Fig.16
2.15 Removing the headphone jack board
(See Figs.16 and 17)
• Prior to performing the following procedure, remove the top
cover and front panel assembly.
(1) From the top side of the main body, disconnect the parallel
wire from the connector CN101 on the headphone jack
board. (See Fig.16)
(2) From the front side of the main body, remove the nut and
screw Tattaching the Bracket(phones) to the chassis base.
(See Fig.17)
Fig.17
S
S
S
Card wire
CN201
CN101
Headphone
jack
board
CN241
CN203
Relay
board
CN291
Power transformer
board 1
Soldered
section c
Soldered
section h
Hook g of the
chassis base bracket
Parallel
wires
Parallel wire
Power supply
board
Headphone jack board
Nut
Chassis base
Bracket(phones)
T

RX-6030VBK
(No.22026)1-11
2.16 Removing the system control board and power switch board
(See Figs.18 and 19)
• Prior to performing the following procedure, remove the top
cover and front panel assembly.
(1) Pull out the volume and jog knobs from the front side of the
front panel assembly, remove the nut attaching the system
control board. (See Fig.18)
(2) From the back side of the front panel assembly, remove the
nine screws Uattaching the system control board. (See
Fig.19)
(3) Remove the solders of the soldered section i on the system
control board and disconnect the parallel wire. (See Fig.19)
(4) Remove the two screws Vattaching the power switch
board. (See Fig.19)
Fig.18
Fig.19
Nut
Volume knob
Front panel assembly
Jog knob
U
UU
V
Soldered section i Power switch board
System control board
Parallel wire
Front panel assembly

RX-6030VBK
1-12 (No.22026)
SECTION 3
Adjustment
3.1 Tuner section
3.1.1 Tuner range
3.2 Power amplifier section
3.2.1 Adjustment of idling current
Attention:
This adjustment does not obtain a correct adjustment value immediately after the amplifier is used (state that an internal
temperature has risen). Please adjust immediately after using the amplifier after turning off the power supply of the ampli-
fier and falling an internal temperature.
3.2.2 Adjustment method
(1) Set the volume control to minimum during this adjustment. (No signal & No load)
(2) Set the surround mode OFF.
(3) Turn VR301 and VR302 fully counterclockwise to warm up before adjustment.
If the heat sink is already warm from previous use the correct adjustment can not be made.
(4) For L-ch, connect a DC voltmeter between TP301's B216 and B217 (Lch) and, connect it between TP302's B218 and B219
(Rch).
(5) Adjust the VR301 (Lch) and VR302 (Rch) so that the DC voltmeter indicates 2.0mV immediately after turning the power on.
* It is not abnormal though the idling current might not become 0mA even if it is finished to turn variable resistance (VR301, VR302)
in the direction of counterclockwise.
FM: 87.5MHz~108.0MHz
AM (MW): 530kHz~1710kHZ
Measurement location: TP301 (Lch), TP302 (Rch)
Adjustment part: VR301 (Lch), VR302 (Rch)
Front amp. board (L)
CN302
VR302
Front amp. board (R)
TP302
CN301
VR301
TP301
VR301 (Lch)
TP301 (Lch)
VR302 (Rch)
TP302 (Rch)

RX-6030VBK
(No.22026)1-13
SECTION 4
Description of major ICs
4.1 TC9162AF-X (IC423): Analog switch
•Pinlayout
• Block diagram
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28 27 26 25 24 23 22 21 20 19 18 17 16 15
VSS GND VDD
2
3
4
5
6
7
8
9
10
11
12
13
27
26
25
24
23
22
21
20
19
18
17
16
15
114 28
L-S1
L-S2
L-COM1
L-S3
L-S4
L-COM2
L-S5
L-S6
L-COM3
L-S7
L-COM4
ST
R-S1
R-S2
R-COM1
R-S3
R-S4
R-COM2
R-S5
R-S6
R-COM3
R-S7
R-COM4
DATA
CK
LEVEL SHIFTER
LATCH CIRCUIT
SHIFT REGISTER
LEVEL SHIFTER
LATCH CIRCUIT

RX-6030VBK
1-14 (No.22026)
4.2 AK4527BVQP (IC601): A/D, D/A converter
• Pin layout
• Pin function
1
2
3
4
5
6
7
8
9
10
11
33
32
31
30
29
28
27
26
25
24
23
12 13 14 15 16 17 18 19 20 21 22
44 43 42 41 40 39 38 37 36 35 34
Top View
No. Symbol I/O Function
1 SDOS I SDTO Source Select Pin (Note 1)
"L" : Internal ADC output, "H" : DAUX input
2 OSKS I Control Mode Select Pin
"L" : 3-wire Serial, "H" : I2C Bus
3 MIS - Soft Mute Pin (Note 1) Connect to GND
When this pin goes to "H" soft mute cycle is initialized.
When returning to "L", the output mute releases.
4 BICK I Audio Serial Data Clock Pin
5 LRCK I/O Input Channel Clock Pin
6 SDTI1 I DAC1 Audio Serial Data Input Pin
7 SDTI2 I DAC2 Audio Serial Data Input Pin
8 SDTI3 I DAC3 Audio Serial Data Input Pin
9 SDTO O Audio Serial Data Output Pin
10 D,AUX - Sub Audio Serial Data Input Pin, Connect to GND
11 DFS - Double Speed Sampling Mode Pin (Note 1)
"L" : Normal Speed, "H" : Double Speed
12 DEMI - Connect to GND
No internal bonding.
13 DEMO - Zero Input Detect Enable Pin, Connect to GND
"L" : mode 7 (disable) at parallel mode,
- zero detect mode is selectable by DZFM2-0 bits at serial mode.
- H : mode 0 (DZF is AND of all six channels)
14 MCKO - Output Buffer Power supply Pin, 2.7V~5.5V
15 DVDD I Digital Power Supply Pin, 4.5V~5.5V
16 DVSS - De-emphasis Pin, 0V
17 PD I Power-Down & Reset Pin
When "L", the AK4527B is powered-down and the control registers are reset to default state.
If the state of P/S or CAD0-1 changes, then the AK4527B must be reset by PDN.
18 XTS - Test Pin, Connect to GND
This pin should be connected to DVSS.
19 ICKS - Connect to GND No internal bonding.
20 ADIF - Analog Input Format Select Pin, Digital Power Supply
H : Full-differential input "L" : Single-ended input

RX-6030VBK
(No.22026)1-15
Note:
(1) SDOS, SMUTE, DFS, and LOOP1 pins are ORed with register data if P/S = "L".
(2) The group 1 and 2 can be selected by DZFM2-0 bit if P/S = "L" and DZFME = "L".
(3) This pin becomes OVF pin if OVFE bit is set to "1" at serial control mode.
(4) All input pins should not be left floating.
21 CAD1 - Chip Address 1 Pin, Connect to GND
22 CAD0 O Chip Address 0 Pin, Connect to GND
23 LOUT3 O DAC3 Lch Analog Output Pin
24 ROUT3 O DAC3 Rch Analog Output Pin
25 LOUT2 O DAC2 Lch Analog Output Pin
26 ROUT2 O DAC2 Rch Analog Output Pin
27 LOUT1 O DAC1 Lch Analog Output Pin
28 ROUT1 O DAC1 Rch Analog Output Pin
29 LIN- I Lch Analog Negative Input Pin
30 LIN+ I Lch Analog Positive Input Pin
31 RIN- I Rch Analog Negative Input Pin
32 RIN+ I Rch Analog Positive Input Pin
33 VREFL - Zero Input Detect 2 Pin (Note 2), Non Connect
When the input data of the group 1 follow total 8192LRCK cycles with "0" input data,
this pin goes to "H".
OVF O Analog Input Overflow Detect Pin (Note 3)
This pin goes to "H" if the analog input of Lch or Rch is overflows.
34 VCOM O Common Voltage Output Pin, AVDD/2
Large external capacitor around 2.2uF is used to reduce power-supply noise.
35 VREFH - Positive Voltage Reference Input Pin, AVDD
36 AVDD - Analog Power Supply Pin, 4.5V~5.5V
37 AVSS - Analog Ground Pin, 0V
38 XTI - Zero Input Detect 1 Pin (Note 2) Non connect
When the input data of the group 1 follow total 8192 LRCK cycles with "0" input data,
this pin goes to "H".
39 XTO I Master Clock Input Pin
40 P1S - Parallel / Serial Select Pin
"L" : Serial control mode, "H" : Parallel control mode
41 CS I Audio Data Interface Format 0 Pin in parallel mode
CSN I Chip select pin in 3-wire serial control mode
This pin should be connected to DVDD at I2C bus control mode
42 DIF1 I Audio Data Interface Format 1 Pin in parallel mode
SCL/CCLK I Control Data Clock Pin in serial control mode
I2C = "L" : CCLK(3-wire Serial), I2C = "H" : SCL(I2CBus)
43 LOOP0 I Loopback Mode 0 Pin in parallel control mode
Enables digital loop-back from ADC to 3 DACs.
SAD/CDTI I/O Control Data Input Pin in serial control mode
I2C = "L" : CDTI(3-wire Serial), I2C = "H" : SDA(I2CBus)
44 CDTD I Loopback Mode 1 Pin (Note 1)
Enable all 3 DAC channels to be input from SDTII.
No. Symbol I/O Function

RX-6030VBK
1-16 (No.22026)
4.3 BA033FP-X (IC681) : Regilator
• Pin layput • Block Diagram
4.4 BA033LBSG-W (IC683): Regulator
• Block diagram
4.5 BA15218 (IC451) : Ope. Amp.
• Pin layout / Block diagram
1 2 3
1pin Vcc
2pin (FIN) GND
3pin OUT
REFERENCE
VOLTAGE
Vcc
3pin OUT
GND 2pin
Vcc 1pin
Current limit circuit
&
Temperature protect circuit
Reference
voltage
+
5 OUT
Vcc 1
CTL 3
GND 2
4 C
-
1OUT1
2-IN1
3+IN1
4
8
7
6
5VEE
VCC
OUT2
-IN2
+IN2
2
1
-
+-
+

RX-6030VBK
(No.22026)1-17
4.6 BA15218F-XE (IC412, IC422, IC427, IC609, IC610, IC650, IC651, IC661, IC690, IC691) : Dual operational amplifier
•Pinlayout
• Block diagram
4.7 BA15218N (IC403) : Dual Ope. Amp.
• Pin layout & Block diaglam
4.8 IMX9-W (IC652, IC662, IC682): Driver
• Pin layout & Block diagram
1
2
8 Vcc
7 OUT2
6 -IN2
5 +IN2
OUT1 1
-IN1 2
+IN1 3
VEE 4
Q19
Q17Q16
OTHER
CH
R9
R6
R8
R7
R5
R4
R3R2
R1
D1
C1
Q18Q13
Q11
Q8
Q5
Vcc
VEE
OUTPUT
-IN
+IN
Q1
Q3 Q4
Q2
C2
Q9
Q6
Q7
Q10
Q12
Q14 Q15Q114
1 2 3 4 5 6 7 8
OUT1 +IN1 +IN1 GND +IN2 -IN2 OUT2 Vcc
1+
-2
+
-
1
2
3
6
5
4
C
B
E
E
B
C

RX-6030VBK
1-18 (No.22026)
4.9 GP1UM281X (IC703) : Dual operation amplifier
• Block diagram
4.10 IC-PST9139-T(IC702) : System reset
• Terminal layout
• Block diagram
R
L
Com-
para-
tor
Integra-
tor
Demodu-
lator
B.P.FLimiter
Amp
GND Vcc Vout
123
2
1
3
VCC
OUT
GND
CO1 OP1

RX-6030VBK
(No.22026)1-19
4.11 LA1838 (IC102): FM AM IF Amp. & Detector, FM MPX decoder
• Block Diagram
• Pin Function
ALC
BUFF
AM
OSC
REG
AM
MIX FM
RF.AMP
AGC
AM IF DET
SD
COMP AM
S-METER
FM
S-METER
FM IF PM
DET
S-CLRVE AM/FM
IF-BUFF TUNING
DRIVE
GND VCC
STEREO
DRIVE
MUTE
DECODER
ANIT-BIRDIE
STEREO
5N
SW
P-DET
PILOT
DET
FF
19k
FF
19k
FF
38k
VCO
384KHz /2/LS
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
1234678910 11 12 13 14 15
5
Pin No. Symbol I/O Function
1 FM IN I This is an input terminal of FM IF signal.
2 AM MIX O This is an out put terminal for AM mixer.
3 FM IF I Bypass of FM IF
4 AM IF I Input of AM IF Signal.
5 GND - This is the device ground terminal.
6TUNED O When the set is tunning, this terminal becomes "L".
7STEREO O Stereo indicator output. Stereo "L", Mono: "H"
8 VCC - This is the power supply terminal.
9 FM DET - FM detect transformer.
10 AM SD - This is a terminal of AM ceramic filter.
11 FM VSM O Adjust FM SD sensitivity.
12 AM VSM O Adjust AM SD sensitivity.
13 MUTE I/O When the signal of IF REQ of IC121(LC72131) appear, the signal of FM/AM IF output.
//Muting control input.
14 FM/AM I Change over the FM/AM input. "H" :FM, "L" : AM
15 MONO/ST O Stereo : "H", Mono: "L"
16 L OUT O Left channel signal output.
17 R OUT O Right channel signal output.
18 L IN I Input terminal of the Left channel post AMP.
19 R IN I Input terminal of the Right channel post AMP.
20 RO O Mpx Right channel signal output.
21 LO O Mpx Left channel signal output.
22 MPX IN I Mpx input terminal
23 FM OUT O FM detection output.
24 AM DET O AM detection output.
25 AM AGC I This is an AGC voltage input terminal for AM
26 AFC - This is an output terminal of voltage for FM-AFC.
27 AM RF I AM RF signal input.
28 REG O Register value between pin 26 and pin28 besides the frequency width of the input signal.
29 AM OSC - This is a terminal of AM Local oscillation circuit.
30 OSC BUFFER O AM Local oscillation Signal output.

RX-6030VBK
1-20 (No.22026)
4.12 LC72136N (IC121) : PLL frequency synthesizer
• Pin layout
• Block diagram
• Pin function
1
2
3
4
5
6
7
8
9
10
11
22
21
20
19
18
17
16
15
14
13
12
XT
FM/AM
CE
DI
CLOCK
DO
FM/ST/VCO
AM/FM
SDIN
XT
GND
LPFOUT
LPFIN
PD
VCC
FMIN
AMIN
IFCONT
IFIN
Reference
Driver Phase
Detector
Charge Pump
Unlock
Detector
Universal
Counter
Swallow Counter
1/16,1/17 4bit
12bit
Programmable
DriverS
Swallow Counter
1/16,1/17 4bit
Data Shift Register & Latch
Power
on
Reset
C2B
I/F
1/2
782 11 13
21
17
6
5
4
3
15
16
22
118
19
20
12
Pin
No. Symbol I/O Function
1 XT I X'tal oscillator connect (75kHz)
2FM
/AM O LOW:FM mode
3 CE I When data output/input for 4pin(input)
and 6pin(output): H
4 DI I Input for receive the serial data from
controller
5 CLOCK I Sync signal input use
6 DO O Data output for Controller Output port
7 FM/ST/VCO O Low: MW mode
8AM
/FM O Open state after the power on reset
9 LW I/O Input/output port
10 MW I/O Input/output port
11 SDIN I/O Data input/output
12 IFIN I IF counter signal input
13 IFCONT O IF signal output
14 - Not use
15 AMIN I AM Local OSC signal output
16 FMIN I FM Local OSC signal input
17 VCC - Power suplly(VDD=4.5-5.5V)
When power ON:Reset circuit move
18 PD O PLL charge pump output
(H: Local OSC frequency Height than
Reference frequency.
L: Low Agreement: Height impedance)
19 LPFIN I Input for active lowpassfilter of PLL
20 LPFOUT O Output for active lowpassfilter of PLL
21 GND - Connected to GND
22 XT I X'tal oscillator(75KHz)
Pin
No. Symbol I/O Function