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MINI COMPONENT SYSTEM CRX-E400

RX-E400/ NX-E400 SERVICE MANUAL
The CRX-E400 is composed of the RX-E400 and the CDX-E400.
This service manual is for the RX-E400 (including NX-E400).
For the CDX-E400 service manual, please refer to the following publication numbers :

CDX-E400 100808




IMPORTANT NOTICE
This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already
known and understood by the users, and have therefore not been restated.

WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal
injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,
we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHA
Retailer or the appointed service representative.

IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or
recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service
departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and
specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the
distributor's Service Division.

WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).
IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.




s CONTENTS
TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . . . 2 PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . . 1417
FRONT PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 PIN CONNECTION DIAGRAM . . . . . . . . . . . . . . . . . 18
REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . 1920
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 45 DISPLAY DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
INTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2128
DISASSEMBLY PROCEDURES . . . . . . . . . . . . . . . 67 REMOTE CONTROL TRANSMITTER . . . . . . . . . . . . 29
TEST MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 SYSTEM CONTROL . . . . . . . . . . . . . . . . . . . . . . 3038
RX-E400




AMP ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . 9 NX-E400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
IC DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1012 PARTS LIST FOR CARBON RESISTORS . . . . . . . . 40
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . 13




100809
RX-E400




s TO SERVICE PERSONNEL
AC LEAKAGE
1. Critical Components Information WALL EQUIPMENT TESTER OR
Components having special characteristics are marked Z OUTLET UNDER TEST EQUIVALENT
and must be replaced with parts having specifications equal
to those originally installed.

2. Leakage Current Measurement (For 120V Models Only)
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated INSULATING
from supply circuits. TABLE

q Meter impedance should be equivalent to 1500 ohm shunted q Leakage current must not exceed 0.5mA.
by 0.15F.
q Be sure to test for leakage with the AC plug in both
polarities.


"CAUTION"
"F232 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 3.15A, 125V FUSE."

A V CAUTION
F232 : REPLACE WITH SAME TYPE 3.15A, 125V FUSE.

ATTENTION
F232 : UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 3.15A, 125V.




WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or
plastic (where applicable) components may also contain traces of chemicals found by the California Health and
Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR
ANY REASON WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes
or expose eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands
before handling food.



s FRONT PANELS
w U, C, R, A models
RX-E400




2
RX-E400



w B, G models




s REAR PANELS
w U, C models w B model




w R model w G model




w A model
RX-E400




3
RX-E400




s SPECIFICATIONS
RX-E400 s FM SECTION
Tuning Range
s AUDIO SECTION U, C models . . . . . . . . . . . . . . . . . . . . . . . 87.5 to 107.9MHz
Minimum RMS Output Power Per Channel A, B, G models . . . . . . . . . . . . . . . . . . . 87.50 to 108.00MHz
20Hz to 20kHz, 0.1% THD, 6 . . . . . . . . . . . . . 40W + 40W R model . . . . . . . . . . . . . . 87.5 to 108.0/87.50 to 108.00MHz
1kHz, 0.1% THD, 6 . . . . . . . . . . . . . . . . . . . . . 55W + 55W Usable Sensitivity (75 )
Maximum Power Per Channel (EIAJ) Mono (S/N 30dB) U, C, R models . . . . . . . . . . . . . . . . 1.0V
1kHz, 10% THD, 6 (R model only) . . . . . . . . . 65W + 65W Alternate Channel Selectivity
Dynamic Power Per Channel (IHF) U, C, R models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70dB
6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60W + 60W Signal-to-Noise Ratio
4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75W + 75W Mono/Stereo (IHF)
2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100W + 100W U, C, R models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76/70dB
DIN Standard Output Power Per Channel Harmonic Distortion
1kHz, 0.7% THD, 4 (G model only) . . . . . . . . . 60W + 60W Mono/Stereo (1kHz) . . . . . . . . . . . . . . . . . . . . . . . . 0.2/0.3%
Dynamic Headroom (6) Stereo Separation
U, C, models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.76dB 1kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45dB
IEC Power Per Channel Frequency Response
1kHz, 0.1% THD, 6 (G model only) . . . . . . . . . 55W + 55W 20Hz to 15kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.5/-2.0dB
Power Band Width Antenna Input . . . . . . . . . . . . . . . . . . . . . . . . . 75 unbalanced
0.1% THD, 30W/6 . . . . . . . . . . . . . . . . . . . 10Hz to 50kHz
Damping Factor
20Hz to 20kHz, 6 . . . . . . . . . . . . . . . . . . . . . . . . 60 or more s GENERAL
Input Sensitivity/Impedance Power Supply
CD, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/47k U, C models . . . . . . . . . . . . . . . . . . . . . . . . AC 120V, 60Hz
Maximum Input Signal Level (1kHz, 0.5% THD) A model . . . . . . . . . . . . . . . . . . . . . . . . . . . AC 240V, 50Hz
CD, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0V B, G models . . . . . . . . . . . . . . . . . . . . . . . . AC 230V, 50Hz
Output Level/Impedance R model . . . . . . . . . . . . . . AC 110/120/220/240V, 50/60Hz
REC OUT (MD, TAPE) . . . . . . . . . . . . . . . . . . 150mV/1.2k Power Consumption
SUB WOOFER (50Hz) . . . . . . . . . . . . . . . . . . . . . 2.0V/680 U, C models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110W
Headphone Jack Rated Output/Impedance R, A, B, G models . . . . . . . . . . . . . . . . . . . . . . . . . . . 125W
CD, etc 1kHz, 150mV, 8 . . . . . . . . . . . . . . . . . 0.43V/330 Standby Power Consumption
Frequency Response (20Hz to 20kHz) U, C models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7W
CD, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00.5dB A, B, G models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8W
Total Harmonic Distortion (20Hz to 20kHz) Maximum Power Consumption
CD, etc to SP OUT (20W/6) . . . . . . . . . . . . . . . . . . 0.04% 1kHz, 10% THD, 2ch, 6 (R model only) . . . . . . . . . 255W
Signal-to-Noise Ratio (IHF-A-Network) AC Outlets
CD, etc, Input Shorted (150mV) . . . . . . . . . . . . . . . . . . 93dB U, C, R, G models, Switched x 2 . . . . . . . 100W max (Total)
Residual Noise (IHF-A-Network) A, B models Switched x 1 . . . . . . . . . . . . . . . . . . . 100W max
SP OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100V Dimensions (W x H x D) . . . . . . . . . . . . . . 217 x 108 x 372mm
Channel Separation (Vol. 30dB) (8-9/16" x 4-1/4" x 14-5/8")
CD, etc, Input 5.1k Shorted, 1kHz/10kHz . . . . . 60dB/45dB Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4 kg (11 lbs. 14 oz)
Tone Control Characteristics Finish
BASS : Boost/cut . . . . . . . . . . . . . . . . . . . . 10dB (50Hz) U, C, R, A, G models . . . . . . . . . . . . . . . . . . . . . . Gold color
Turnover Frequency . . . . . . . . . . . . . . . . . 350Hz U, B, G models . . . . . . . . . . . . . . . . . . . . . . . . . . Silver color
TREBLE : Boost/cut . . . . . . . . . . . . . . . . . . . 10dB (20kHz) Accessories of CRX-E400 . . . . . . . . . . . AM loop antenna x 1
Turnover Frequency . . . . . . . . . . . . . . . . . 3.5kHz Indoor FM antenna x 1
Filter Characteristics Remote Control x 1
SUB WOOFER (L.P.F.) . . . . . . . . . . . . . fc = 100Hz, 6dB/oct. Battery (size "UM-3", "R06") x 2
Audio Pin Cable x 1
System Control Cable x 1
s AM SECTION
* Specifications subject to change without notice.
Tuning Range
RX-E400




U, C models . . . . . . . . . . . . . . . . . . . . . . . . 530 to 1710kHz U ....... USA model
A, B, G models . . . . . . . . . . . . . . . . . . . . . . 531 to 1611kHz C ....... Canadian model
R model . . . . . . . . . . . . . . . . 530 to 1710/531 to 1611kHz A ....... Australian model
B ....... British model
Usable Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . 300V/m
G ....... European model
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loop antenna R ....... General model




4
RX-E400




s SPEAKER SECTION (NX-E400) q DIMENSIONS (RX-E400)




(7/8")
22
Type . . . . . . . . . . . . 2way Bass-reflex Magnetic Shielding Type
Driver
Woofer . . . . . . . . . . . . . . . . . . . . . . 13cm (5-1/8") Cone Type
Tweeter . . . . . . . . . . . . . . . . . . . . . . . 2.5cm (1") Dome Type
Frequency Response . . . . . . . . . . . . . . . . . . . . 55Hz to 28kHz
Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Nominal Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60W
Maximum Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110W
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87dB/2.83V,1m
Crossover Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3kHz




335 (13-3/16")

372 (14-5/8")
Input Terminal . . . . . . . . . . . . . . . . . . . . . . Screw/Banana Type
Dimensions (W x H x D) . . . . . . . . . . . . . . 186 x 300 x 223mm
(7-5/16" x 11-13/16" x 8-3/4")
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3 kg (9 lbs. 7 oz)
Finish . . . . . . . . . . . . . . . . . . . . . . . . . . High Gloss Piano Finish
Accessories . . . . . . . . . . . . . . . . . . . . Speaker Cable (4m) x 2

* Specifications subject to change without notice.




(9/16")
15
100 (3-15/16")

108 (4-1/4")
(5/16")
217 (8-9/16")




8
Unit : mm (inch)

s INTERNAL VIEW


q POWER TRANSFORMER
w MAIN (6) P.C.B.
e AM/FM TUNER
r MAIN (2) P.C.B.
t OPERATION P.C.B.
y MAIN (4) P.C.B.
u MAIN (1) P.C.B.
i MAIN (3) P.C.B.
RX-E400




5
RX-E400




s DISASSEMBLY PROCEDURES (Remove parts in disassembly order as numbered.)

1. Removal of Top Cover
a. Remove 4 screws ( q ) and 4 screws ( w ) in Fig. 1.
b. Lift the Top Cover at the rear and move it rear-ward slantingly.
2. Removal of Front Panel
a. Disconnect 4 connectors (CB251, CB253, CB210, CB406) in Fig. 2.
b. Remove 2 screws ( e ), 3 screws ( r ) and 1 plastic rivet ( t ) in Fig. 1.
c. Release 2 hooks and remove the Front Panel Unit by pulling it forward.



Top Cover
w
w
q

w




q
Front Panel Unit Hook



e

t




e Hook
r


r



Fig. 1




Main (3) P.C.B. Front Panel Unit


CB406 Operation P.C.B.


CB210
Main (2) P.C.B.
RX-E400




Main (1) P.C.B. CB251 CB253



Fig. 2



6
RX-E400



q Servicing Position
a. Remove the Top Cover and the Front Panel Unit.
b. Remove 6 screws ( y ) in Fig. 3.
c. Remove 5 screws ( u ) in Fig. 3.
d. Remove 3 screws ( i ) in Fig. 3.
e. Remove the Power Transformer and Main P.C.B. (with the rear panel attached) from the main
chassis.
f. With the rear panel attached, set the Main P.C.B on its side. At this time, set the Power Trans-
former on its side as well in Fig. 4.
g. Using a lead wire or the like, connect G250 of the Main (1) P.C.B. with the rear panel in Fig. 4.
h. With the Front Panel Unit set on its side, connect 4 connectors (CB251, CB253, CB210, CB406)
in Fig. 5.
i. Connect the power cable, turn on the power and check for operation.



Front Panel Unit
u
CB406
u y CB210


y




Main Chassis


CB251 CB253



i
Fig. 3 Fig. 5


G250

Lead Wire




Main (1) P.C.B.


RX-E400




Rear Panel




Power Transformer

Fig. 4


7
RX-E400




s TEST MODE

POWER Off condition




STANDBY/ON Key is pushed while pushing DISPLAY Key and AUTO/MAN'L Key.




TEST MODE indication.




TEST MODE UP TEST MODE DOWN When present mode is
PRESET/TUNING N Key carried out.
PRESET/TUNING B Key
PRESET/BAND Key



Test mode number Test mode number
up. Execute test mode.
down.




TEST PROGRAM MODE FUNCTION DESCRIPTION
Test mode is
finished.
DISPLAY FUNCTION PRESET/BAND Key STANDBY/ON Key
01 DEST-B,G Indication for destinaion. (*1)

All FL segments and BACKUP 1st : all segments light
02 FL+CLEAR POWER OFF
RAM CLEAR. 2nd : RAM CLEAR The completion
Also, the preset contents of the of test mode.
(Note that memories set by the user
tuner are restored to the factory
will be erased.)
preset ones.

1st : all segments light
All FL segments and circuit
03 FL CHECK 2nd : Even-numbered
board short circuit inspection. FL CHECK
segments and even
1st
numbered digits are
turned on. PRESET
TIMER STEREO AUTO RDS PS PTY RT CT TIMER VOLUME

EDIT TUNED MEMORY PTY HOLD SLEEP
3rd : Odd -numbered
segments and odd-
numbered digits are 2nd
turned on.
TIMER PRESET STEREO AUTO RDS PS PTY RT CT TIMER VOLUME

EDIT TUNED MEMORY PTY HOLD SLEEP



Version information of the It is changed to the date
04 Ver-A1.10 indication.
microcomputer software. (*2) 3rd

04'99.05.28 The date of the microcomputer It is changed to version
software. (*2) indication. TIMER PRESET
EDIT
STEREO
TUNED
AUTO RDS PS PTY RT CT
MEMORY PTY HOLD
TIMER
SLEEP
VOLUME
RX-E400




The calculation of SUM is done and
05 SUM[Caa2] indicated after that. (*2)
Re-calculation




(*1)

DESTINATION R (AM9k/FM:50k) R (AM10k/FM100k) A B,G U,C
Display R9k R10k A B, G U, C

(*2) Contents of indication change by the microcomputer software.

8
RX-E400



q FACTORY PRESET
PRESET No.
BAND MARKETS
1 2 3 4 5 6 7 8
U, C, R (100k/10k) 98.1 95.1 87.5 101.5 107.9 88.1 106.1 107.9
FM (MHz)
A, B, G, R, (50k/9k) 98.10 95.10 87.50 101.50 108.00 88.10 106.10 107.90
U, C, R (100k/10k) 630 1080 1400 530 1710 900 1350 1440
AM (kHz)
A, B, G, R (50k/9k) 630 1080 1404 531 1611 900 1350 1440
NOTE 1) PRESET PAGE ................................................. A : FM B : AM C : FM D : AM E : FM


CAUTION : When executing Test mode No. 2 RAM CLEAR, be sure to write down the preset memory contents of the
tuner, using a table like the one shown below. Execution of RAM CLEAR will set the memory contents of the
tuner back to the factory preset state which means that all the memories preset by the user will be erased.
Preset group P1 P2 P3 P4 P5 P6 P7 P8
A
B
C
D
E




s AMP ADJUSTMENTS
q Confirmation of Idling Current
1) No signal applied.
2) Non-loaded condition.
3) Aging is not neccessary.
Item Test Point Rating (DC) Note

MAIN L R319 If the measured voltage exceeds 2.5mV, cut the lead wire of R308(L ch)
(Between terminal) or R309(R ch) and then check again if each measured value satisfies the
0.05mV--2.5mV rating.
R320
MAIN R
(Between terminal)


* Confirm that the idling current is 0.125mV -- 7.5mV after 60 minutes.




Q261 R319



0.05mV ~ 2.5mV (DC)
R308 (L ch)
R309 (R ch)

Cut OFF
R319 (L ch)
R320 (R ch)
R308
RX-E400




Note)
If R308(L ch) or R309(R ch) have already been cut off and
idling current does not flow, reconnect R308(1k) or
R309(1k).
Q261 and Q262 are transistors for temperature correction.
Q262 R309 R320 Apply silicone grease to the contact surface with the heat
sink.



9
RX-E400




s IC DATA
IC700 : M30217M8-A103FP (16 bit -COM)




P52/FLD10

P54/FLD12
P55/FLD13
P56/FLD14
P57/FLD15
P00/FLD16
P01/FLD17
P02/FLD18
P03/FLD19
P04/FLD20
P05/FLD21
P06/FLD22

P17/FLD23

P10/FLD24

P12/FLD26
P13/FLD27
P14/FLD28
P15/FLD29
P16/FLD30
P17/FLD31
P20/FLD32
P21/FLD33
P22/FLD34
P23/FLD35
P53/FLD11




P11/FLD25
P50/FLD8
P51/FLD9




VCC
VSS
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
P67/FLD7 81 50 P24/FLD36
P66/FLD6 82 49 P25/FLD37
P65/FLD5 83 48 P26/FLD38
P64/FLD4 84 47 P27/FLD39
P63/FLD3 85 46 P30/FLD40
P62/FLD2 86 45 P31/FLD41
P61/FLD1 87 44 P32/FLD42
P60/FLD0 88 43 P33/FLD43
VEE 89 42 P34/FLD44
P107/AN7 90 41 P35/FLD45
P106/AN6 91 40 P36/FLD46
P105/AN5 92 39 P37/FLD47
P104/AN4 93 38 P40/FLD48
P103/AN3 94 37 P41/FLD49
P102/AN2 95 36 P42/FLD50
P101/AN1 96 35 P43/FLD51
AVSS 97 34 P44/TXD0/FLD52
P100/AN0 98 33 P45/RXD0/FLD53
VREF 99 32 P46/CLK0/FLD54
AVCC 100 31 P47/CTS0/RTS0/FLD55
10


12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
11
1
2
3
4
5
6
7
8
9
P97/DA0/CLKOUT/DIMOUT
P96/DA1/SCLK22
P95/SCLK21
P94/SOUT2
P93/SIN2
P92/SSTB2
P91/SBUSY2
P90/SRDY2
CNVSS
P87/XCIN
P86/XCOUT
RESET
XOUT
VSS
XIN
VCC
P85/INT5
P84/INT4
P83/INT3
P82/INT2
P81/INT1
P80/INT0
P77/TA4IN/TA2OUT/CTS1/RTS1/CLKS1
P76/TA3IN/TA1OUT/CLK1
P75/TA2IN/TA0OUT/RXD1
P74/TA1IN/TA4OUT/TXD1
P73/TA0IN/TA3OUT
P72/TB2IN
P71/TB1IN
P70/TB0IN




No. PORT Name IN/OUT Function
1 P97 Fan dr OUT Not used
2 P96 RLY PW OUT Power supply relay (Power ON) OUT [0:OFF 1:ON]
3 P95 VOL DN OUT Motor VR DOWN OUT [1:DOWN]
4 P94 VOL UP OUT Motor VR UP OUT [1:UP]
5 P93 ENC B IN Rotary encoder-B IN [Pull-up resistor]
6 P92 ENC A IN Rotary encoder-A IN [Pull-up resistor]
7 P91 LED T OUT Timer LED OUT [0:OFF 1:ON]
8 P90 LED S OUT Not used
9 CNVSS CNVss - Connected to VSS(GND) via resistor(5.1k)
10 P87 Xin - 32.768KHz IN (Feedback resistor included)
11 P86 Xout - 32.768KHz OUT (Feedback resistor included)
12 RESET Reset - RESET [0:RESET]
13 XOUT 10Xout - 10MHz OUT (Feedback resistor included)
RX-E400




14 VSS Vss - GND
15 XIN 10Xin - 10MHz IN (Feedback resistor included)
16 VCC Vcc - Power supply +5V [Backup capacitor required]
17 P85 Sys O OUT System control OUT
18 P84 Sys I IN System control IN
19 P83 RLY SP OUT Speaker relay OUT [0:OFF 1:ON]
20 P82 Pro I IN Amplifier current detect IN (protection) [1:Abnormality exists]
21 P81 Rem INT-IN Remote control IN
22 P80 PD INT-IN Power-down DC detect IN [0:POWER DOWN]

10
RX-E400




IC700 : M30217M8-A103FP (16 bit -COM)

No. PORT Name IN/OUT Function
23 P77 CE OUT C2B(LC72722/LC78211)CE OUT [1:DATA transmission]
24 P76 CLK S-CLK LC72722/LC78211 CLK OUT (Serial I/O-1)
25 P75 DAT I S-IN LC72722 DATA IN (Serial I/O-1)
26 P74 DAT O S-OUT LC72722/LC78211 DATA OUT (Serial I/O-1)
27 P73 Mut A OUT AMP MUTE OUT [0:MUTE ON]
28 P72 Mut T OUT Tuner MUTE OUT (TUNER) [1:MUTE ON]
29 P71 Sta IN STATION IN (TUNER) [0:Station exists]
30 P70 ST/MO IN STEREO/MONO IN (TUNER) [0:STEREO]
31 P47 F CE OUT CE OUT(from built-in flash ROM to Busy OUT/EEPROM) [1:DATA transmission(EEPROM)]
32 P46 F CK S-CLK CLK OUT(from built-in flash ROM to CLK IN/EEPROM) (Serial I/O-0)
33 P45 F RX S-IN DATA IN(from DATA IN/EEPROM to built-in flash ROM) (Serial I/O-0)
34 P44 F TX S-OUT DATA OUT(from built-in flash ROM to DATA OUT/EEPROM) (Serial I/O-0)
35 P43 HP IN Head phone detect IN [0:SP 1:HP]
36 P42 DIG 16 OUT DIGIT 16 (16G) [VEE external pull-down]
37 P41 DIG 15 OUT DIGIT 15 (15G) [VEE external pull-down]
38 P40 DIG 14 OUT DIGIT 14 (14G) [VEE external pull-down]
39 P37 DIG 13 OUT DIGIT 13 (13G) [VEE external pull-down]
40 P36 DIG 12 OUT DIGIT 12 (12G) [VEE external pull-down]
41 P35 DIG 11 OUT DIGIT 11 (11G) [VEE external pull-down]
42 P34 DIG 10 OUT DIGIT 10 (10G) [VEE external pull-down]
43 P33 DIG 9 OUT DIGIT 9 ( 9G) [VEE external pull-down]
44 P32 DIG 8 OUT DIGIT 8 ( 8G) [VEE external pull-down]
45 P31 DIG 7 OUT DIGIT 7 ( 7G) [VEE external pull-down]
46 P30 DIG 6 OUT DIGIT 6 ( 6G) [VEE external pull-down]
47 P27 DIG 5 OUT DIGIT 5 ( 5G) [VEE external pull-down]
48 P26 DIG 4 OUT DIGIT 4 ( 4G) [VEE external pull-down]
49 P25 DIG 3 OUT DIGIT 3 ( 3G) [VEE external pull-down]
50 P24 DIG 2 OUT DIGIT 2 ( 2G) [VEE external pull-down]
51 P23 DIG 1 OUT DIGIT 1 ( 1G) [VEE external pull-down]
52 P22 SEG 1 OUT SEGMENT 1 (P1) [VEE external pull-down]
53 P21 SEG 2 OUT SEGMENT 2 (P2) [VEE external pull-down]
54 P20 SEG 3 OUT SEGMENT 3 (P3) [VEE external pull-down]
55 P17 SEG 4 OUT SEGMENT 4 (P4) (VEE internal pull-down)
56 P16 SEG 5 OUT SEGMENT 5 (P5) (VEE internal pull-down)
57 P15 SEG 6 OUT SEGMENT 6 (P6) (VEE internal pull-down)
58 P14 SEG 7 OUT SEGMENT 7 (P7) (VEE internal pull-down)
59 P13 SEG 8 OUT SEGMENT 8 (P8) (VEE internal pull-down)
60 P12 SEG 9 OUT SEGMENT 9 (P9) (VEE internal pull-down)
61 P11 SEG 10 OUT SEGMENT 10 (P10) (VEE internal pull-down)
62 P10 SEG 11 OUT SEGMENT 11 (P11) (VEE internal pull-down)
63 VCC Vcc - Power supply +5V [Back-up capacitor]
64 P07 SEG 12 OUT SEGMENT 12 (P12) (VEE internal pull-down)
65 VSS Vss - GND
66 P06 SEG 13 OUT SEGMENT 13 (P13) (VEE internal pull-down)
67 P05 SEG 14 OUT SEGMENT 14 (P14) (VEE internal pull-down)
68 P04 SEG 15 OUT SEGMENT 15 (P15) (VEE internal pull-down)
69 P03 SEG 16 OUT SEGMENT 16 (P16) (VEE internal pull-down)
RX-E400




70 P02 SEG 17 OUT SEGMENT 17 (P17) (VEE internal pull-down)
71 P01 SEG 18 OUT SEGMENT 18 (P18) (VEE internal pull-down)
72 P00 SEG 19 OUT SEGMENT 19 (P19) (VEE internal pull-down)
73 P57 SEG 20 OUT SEGMENT 20 (P20) (VEE internal pull-down)
74 P56 SEG 21 OUT SEGMENT 21 (P21) (VEE internal pull-down)
75 P55 SEG 22 OUT SEGMENT 22 (P22) (VEE internal pull-down)
76 P54 SEG 23 OUT SEGMENT 23 (P23) (VEE internal pull-down)
77 P53 SEG 24 OUT SEGMENT 24 (P24) (VEE internal pull-down)