Yamaha KX-E100 User manual

COUNTER
RESET
MODE REC/
PAUSE
REC LEVEL DIRECTION
MIN MAX
DOLBY NR
NATURAL SOUND STEREO CASSETTE DECK KX-E100
STANDBY/ON
P.O.Box 1, Hamamatsu, Japan
SERVICE MANUAL
STEREO CASSETTE DECK
KX-E100
100687
■CONTENTS
TO SERVICE PERSONNEL .......................................... 1
SPECIFICATIONS.......................................................... 1
DIMENSIONS ................................................................. 2
INTERNAL VIEW ........................................................... 2
REAR PANELS .............................................................. 3
DISASSEMBLY PROCEDURES ............................... 4~5
ADJUSTMENT ........................................................... 6~9
DISPLAY DATA ........................................................... 10
IC DATA ................................................................. 11~12
BLOCK DIAGRAM ....................................................... 13
PRINTED CIRCUIT BOARD .................................. 14~21
SCHEMATIC DIAGRAM .............................................. 22
PARTS LIST ........................................................... 23~31
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.
KX-E100

KX-E100
WALL
OUTLET EQUIPMENT UNDER TEST
AC LEAKAGE
TESTER OR
EQUIVALENT
INSULATING
TABLE
1
■TO SERVICE PERSONNEL
Critical Components Information.
Components having special characteristics are marked
and must be replaced with parts having specifications
equal to those originally installed.
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 REA-
SON 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.
■SPECIFICATIONS
Type
Auto Reverse
4-Track 2-Channel Playback/Recording
Stereo Cassette Deck
Heads
REC/PB Hard permalloy
Erase Double Gap Ferrite
Motors
Main DC servo motor
Tray Loading DC motor
Wow & Flutter
W.PEAK (EIAJ) ±0.19 %
W.RMS 0.09 %
Fast Winding Time
about 100 seconds (C-60 tape)
Frequency Response
Type I (Normal) 30 – 15,000 Hz ±3 dB
Type II (CrO2) 30 – 16,000 Hz ±3 dB
Type IV (Metal) 30 – 18,000 Hz ±3 dB
S/N Ratio (S : 3rd harmonic distortion 3 %, N : Weighted)
NR off 58 dB
Dolby B NR on 66 dB
Dolby C NR on 74 dB
Harmonic Distortion
1.0 %
Channel Separation
More than 40 dB
Crosstalk (125 Hz)
More than 55 dB
Input Sensitivity/Impedance
Line 100 mV/30 kΩ
Output Level
Line 570 mV/3.0 kΩ
Power Requirements
U, C models AC120 V, 60 Hz
R model AC110-120/220-240 V, 50/60 Hz
A model AC240 V, 50 Hz
B, G models AC230 V, 50 Hz
Power Consumption
12 W (Standby 3W)
Dimensions (W x H x D)
217 x 88 x 293 mm
(8-9/16" x 3-7/16" x 11-9/16")
Weight
3.0 kg (6 lbs 10 oz.)
Accessories
Input & Output cords (RCA type) x 2, System cord x 1
* Specifications are subject to change without notice.
U ........ U.S.A. model
C ........ Canadian model
R ........ General model
A ........ Australian model
B ........ British model
G ........ European model

KX-E100
1
2
3
4
5
217(8-9/16")
80(3-1/8")8(5/16")
88(3-7/16")
275(10-13/16") 7(1/4")
11(7/16")
Unit : mm (inch)
293(11-9/16")
2
■INTERNAL VIEW
1MAIN P.C.B. (4)
2Cassette Mechanism Unit
3MAIN P.C.B. (1)
4MAIN P.C.B. (2)
5MAIN P.C.B. (3)
■DIMENSIONS

KX-E100
3
■REAR PANELS
▼U, C models
▼R model
▼A model
▼B, G models

KX-E100
1
3
4
3
55
1
2
Cassette Mechanism
Unit
Hook
Front Panel
Hook
Top Cover
CB201CB209
4
■DISASSEMBLY PROCEDURES
Remove parts in disassembly order as numbered.
1. Removal of Top Cover
a. Remove 4 screws (1) and 4 screws (2) in Fig. 1.
b. Lift the Top Cover at the rear and move it rear-ward
slantingly.
2. Removal of Front Panel
a. Disconnect 2 connectors (CB201 and CB209) in Fig. 2.
b. Remove 2 screws (3) and 2 screws (4) in Fig. 1.
c. Detach the 2 hooks in Fig. 1 and then pull out the Front
Panel forward.
3. Removal of Cassette Mechanism Unit
a. Remove 4 screws (5) in Fig. 1.
b. Disconnect 3 connectors (CB1, CB2 and CB3) in Fig. 3.
Fig. 2
Fig. 1

KX-E100
899
Hook
Relay P.C.B.
Hook
Pinch Roller (R)
Pinch Roller (L)
Head Ass'y
66
66
77
CB3
CB2 CB1
F/R Belt
Main
Belt
Main
Motor
Hook
5
6. Removal of Pinch Roller
Detach the hook and then remove the Pinch Roller in
Fig. 4.
7. Removal of Head Ass’y
a. Remove 1 screw (8) and then remove the Relay
P.C.B. in Fig. 4.
b. Remove 2 screws (9) and then remove the Head Ass’y
in Fig. 4.
* Perform the adjustment of azimuth after installing the
Head Ass’y.
Fig. 4
4. Removal of Cassette Mechanism
a. Remove 4 screws (6) in Fig. 3.
b. Detach the hook in Fig. 3 and then pull out the Cassette
Mechanism.
5. Removal of Main Motor
Remove 2 screws (7) in Fig. 3.
Fig. 3

KX-E100
6
1. Before adjustment
●Since head magnetization, dust accumulations, etc. are
likely to introduce error in the various characteristics, it
is very important that the heads are properly
demagnetized and cleaned.
●Make adjustments of mechanical system, playback
system and recording system in that order.
●Except for azimuth adjustment, adjust in the forward
direction.
2. Instruments required
●Audio frequency oscillator
●ACVM or dual channel (ACVM)
●DCVM
●Wow/flutter meter
●Oscilloscope
●Frequency counter
●Torque meter
TW-2111A (TX911580) ...Take up/back tension (FWD)
TW-2121A (TX911570) ... Take up/back tension (RVS)
CT-160L (TX911120) ...................................... FF/REW
3. Test tape required
●MTT-111N (TX911650) .......................... Normal speed
●MTT-114N (TX911680) .................................... Azimuth
●MTT-212N (TX911660) .......................... Playback level
●MTT-256 (TX911300) ................... Playback frequency
response (Normal)
●MTT-356 (TX911310) ................... Playback frequency
response (CrO2)
●Reference tape
Type I/Normal (LH) ............... TDK AC225 (VU167200)
Type II/High (CrO2) ............... TDK AC514 (VU167300)
Type IV/METAL ..................... TDK AC713 (VU167400)
■ADJUSTMENTS
TEST MODE (Operation and Display Check)
Enter the TEST MODE by pressing the STANDBY/ON key while pressing the STOP key and FF key when the power is OFF.
NO. KEY FUNCTION ACTION
1 PLAY PLAY Playback mode without the cassette tape. In this mode, cleaning
the REC/PB head.
2 STOP STOP Stop the playback mode.
3 DIRECTION DIRECTION Change the playback direction.
4 FF DIMMER Dimmed display when pressing the FF key. (6 step)
5 REW PHOTO MODE Photograph mode.
6 DOLBY NR All display segments lit.
7 REC/PAUSE Version Display the program version and date when pressing the REC/
PAUSE key.
8 MODE Display grid and segments short/open check. (Fig. A is OK)
9 COUNTER RESET EXIT To escape the TEST MODE.
10 POWER EXIT To escape the TEST MODE and power off.
Fig. A
DISPLAY (Light the all segment) DISPLAY CHECK (Light a segment of each grid)

KX-E100
VR101 VR103
L
LL
R
RR
VR104 VR203VR204
VR201VR202
MAIN (1)
MAIN (2)
TAPE SPEED ADJ. PLAYBACK LEVEL ADJ.
RECORDING LEVEL & BIAS ADJ. RECORDING LEVEL & BIAS ADJ.
Azimuth adjustment
screw. (REVERSE)
Azimuth adjustment
screw. (FORWARD)
OK
Rec out L : ch 1
Rec out R : ch 2
DC input, X-Y (Resurge) mode
NG
Fig. B
0.2V
0.2V
7

KX-E100
8
Item to be
Adjusted
Check each
torque
Check FF, REW
take up time
Azimth
Tape Speed
Wow/ Flutter
Tape
CT-160L (FF, REW)
TW-2111A (FWD)
TW-2121A (RVS)
AC-514 (C-60)
MTT-114N
10kHz, –10dB
MTT-111N
3kHz, –10dB
MTT-111N
3kHz, –10dB
Step
1
2
3
4
5
Mode
FF REW
PLAY
FF REW
PLAY
PLAY
PLAY
Rating
FF, REW torque : within 70 ~ 150g/cm.
Take up torque : 30 ~ 70g/cm.
Back tension : 1.5 ~ 6g/cm.
80 to 120 seconds.
Playback output of L and R is
maximum and phase difference should
be minimum both directions. (Fig. B)
2980 Hz ±15 Hz
Less than 0.19% (WRMS)
Remarks
After the adjustment
make sure to apply screw
lock paint.
Perform adjustment at
the center of the test
tape, if possible.
Confirm at center of the
test tape, if possible.
Instrument
required
Torque meter
ACVM
oscilloscope
Frequency
counter
Wow/Flutter
meter
Adjustment
part
Azimuth
adjustment
screw.
(Fig. B)
VR101
MECHANICAL ADJUSTMENT
Rating
– 5 dBV ±0.3 dBV
Check that the 10kHz playback level
is within 0 ±3 dB of the 1kHz
playback level. (Fig. C)
Item to be
Adjusted
Playback
level
(315Hz)
Confirmation
of playback
frequency
response
Step
1
2
Points of
measurement
LINE OUT
LINE OUT
Mode
PLAY
PLAY
Instrument
required
ACVM
ACVM
oscilloscope
Tape
MTT-212N
315Hz,
250nwb/m
Test tape for frequency check.
3180µs + 120µs (LH) (MTT-256)
3180µs + 70µs (CrO2) (MTT-356)
Adjustment
parts
VR201 (L ch)
VR202 (R ch)
ELECTRICAL ADJUSTMENT
●Use 560 mV (250 nwb/m) for 0 dB as the standard level of the unit.
0 dB = 250 nwb/m (315 Hz) = –7 dBV (Rec out level)
<Playback section>
±4dB ±3.5dB
1k
±3dB
±3dB
3k 10kHz31525050 12.5kHz
Fig. C
● PLAYBACK FREQUENCY RESPONSE

KX-E100
±4dB ±4dB
1k
±3dB
±3dB
3k 10kHz31525050 12.5kHz
Fig. D
9
●TOTAL FREQUENCY RESPONSE ( –20 dBV)
Dolby NR OFF / B on / C on
Type I(Normal) / Type II (High) / Type IV (METAL)
Rating
Adjust for equal record and
playback levels.
(– 25 dBV ±0.3 dBV)
Adjust for equal record and
playback levels.
(– 25 dBV ±0.5 dBV)
Adjust for equal record and
playback levels. (Fig. D)
Perform record bias adjustment
of High (CrO2) tape again, if the
rating was not satisfied.
Confirm recorded level rating as
in step 1 when recorded level
rating is improper, go back to
step 1 and also carry out
adjustments in step 2 again.
Item to be
Adjusted
Recording
level
Recording
bias
(Total
frequency
response)
Confirmation
of recorded
level
Step
1
2
3
Points of
measurement
LINE OUT
LINE OUT
LINE OUT
Mode
REC
PLAY
REC
PLAY
REC
PLAY
Instrument
required
ACVM
Audio
frequency
oscillator
ACVM
Audio
frequency
oscillator
ACVM
Audio
frequency
oscillator
Measurement
conditions
Input 315 Hz Signal to
LINE IN from Audio
Frequency Oscillator.
Adjust output level of
Audio Frequency
Oscillator so that the
voltage of LINE OUT
becomes – 25 dBV.
Input 12.5 kHz Signal to
LINE IN from Audio
Frequency Oscillator.
Adjust output level of
Audio Frequency
Oscillator so that the
voltage of LINE OUT
becomes – 25 dBV.
Tape
AC-514
High
(CrO2)
AC-514
High
(CrO2)
AC-225
Normal
(LH)
AC-514
High
(CrO2)
Adjustment
parts
VR203 (L ch)
VR204 (R ch)
VR103 (L ch)
VR104 (R ch)
<Recording section>

KX-E100
PATTERN AREA
11018 31
●VO301 : BJ707GNK (V358690)
●PIN CONNECTION
●GRID ASSIGNMENT
●ANODE CONNECTION
Pin No. 12345678910111213141516171819202122232425262728293031
F1 F1 NP P1 P2 P3 P4 P5 P6 P7 NX NX NX NX NX NX NX 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G 11G NP F2 F2
Connection
Note : 1) F1, F2 ..... Filament 2) NP ..... No pin 3) NX ..... No extended pin 4) 1G ~ 11G ..... Grid
1G 2G 3G 4G 5G 6G 7G 8G 9G 10G 11G
P1aaaa S1S1S1S1
P2bbbb B1B1B1B1
P3cccc B2B2B2B2
P4dddd B3B3B3B3
P5eeee –B4B4B4B4
P6ffff –B5B5B5B5
P7gggg– –B6B6B6B6
E-10/J-8
■DISPLAY DATA

KX-E100
A-D Convert
(10 bit x 12 ch)
Serial I/O
Serial I/O 2 (Clock
synchronization/UART)
Serial I/O 1 (Clock synchronization)
(256 byte automatic transmission)
Buzzer output
Watch dog timer
Port P0 (8)
8
ROM
RAM
Interrupt controller
LCD display
40 Control terminals
(36 register port)
PWM1 (8 bit)
PWM0 (14 bit)
Timer System clock
Timer X (16 bit)
Timer 1 (8 bit)
Timer 2 (8 bit)
Timer 3 (8 bit)
Timer 4 (8 bit)
Timer 5 (8 bit)
Timer 6 (8 bit)
X IN - X OUT
(Main clock)
X
CIN - X COUT
(Sub clock)
Internal peripheral function
I/O Port
CPU core
Memory
Port P5 (8)
8
Port P6 (6)
6
Port P7 (8)
8
Port P8 (8)
8
Port P9 (2)
2
Port P1 (8)
8
Port P2 (8)
8
Port P3 (8)
8
Port P4 (8)
7
1
64 P2
0
/Buz
02
/FLD
0
63 P2
1
/FLD
1
62 P2
2
/FLD
2
61 P2
3
/FLD
3
60 P2
4
/FLD
4
59 P2
5
/FLD
5
58 P2
6
/FLD
6
57 P2
7
/FLD
7
56 P0
0
/FLD
8
55 P0
1
/FLD
9
54 P0
2
/FLD
10
53 P0
3
/FLD
11
52 P0
4
/FLD
12
51 P0
5
/FLD
13
50 P0
6
/FLD
14
49 P0
7
/FLD
15
48 P1
0
/FLD
16
47 P1
1
/FLD
17
46 P1
2
/FLD
18
45 P1
3
/FLD
19
44 P1
4
/FLD
20
43 P1
5
/FLD
21
42 P1
6
/FLD
22
41 P1
7
/FLD
23
40 P3 0 /FLD 24
39 P3 1 /FLD 25
38 P3 2 /FLD 26
37 P3 3 /FLD 27
36 P3 4 /FLD 28
35 P3 5 /FLD 29
34 P3 6 /FLD 30
33 P3 7 /FLD 31
32 P8 0 /FLD 32
31 P8 1 /FLD 33
30 P8 2 /FLD 34
29 P8 3 /FLD 35
28 V EE
27 P8 4 /FLD 36
26 P8 5 /RTP 0 /FLD 37
25 P8 6 /RTP 1 /FLD 38
P5 7 /S RDV2 /S CLK22
P5 6 /S CLK21
P5 5 /TxD
P5
4 /RxD
P5
3 /S CLK12
P5 2 /S CLK11
P5 1 /S OUT1
P5 0 /S IN1
AV SS
V REF
P6 5 /S STB1 /AN 11
P6 4 /INT 4 /S BUSY1 /AN 10
P6 3 /AN 0
P6 2 /S RDY1 /AN 8
P7 7 /AN 7
P7 6 /AN 6
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
P7
5
/AN
5
P7
4
/AN
4
P7
3
/AN
3
P7
2
/AN
2
P7
1
/AN
1
P7
0
/AN
0
P6
1
/CNTR
0
/CNTR
2
P6
0
/CNTR
1
P4
7
/INT
2
RESET
P9
1
/X
COUT
P9
0
/X
CIN
V
SS
X
IN
X
OUT
V
CC
P4
6
/T
SOUT
P4
5
/T
1OUT
P4
4
/PWM
1
P4
3
/B
UZ01
P4
2
/INT
3
P4
1
/INT
1
P4
0
/INT
0
P8
7
/PWM
0
/FLD
39
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
E-11/J-9
■IC DATA
IC205 : M38B57M6-135FP (XW379A00)

KX-E100
E-12/J-10
Pin No. PORT I/O IN OUT RESISTOR
1 P75/AN5 I Mecha SW1 AD(PLAY, Half) PU
2 P74/AN4 I Loading SW AD(IN,OUT) PU
3 P73/AN3 I Meter L AD(-30 – +6)
4 P72/AN2 I Meter R AD(-30 – +6)
5 P71/AN1 I Operation 2
AD(FF,REW,REC,COU,EJ) PU
6 P70/AN0 I Operation 1
AD(ST,PL,DIR,DOL,MOD) PU
7 P61/CN0,2 O DOLBY-B B : H
8 P60/CN1 O DOLBY-OFF OFF : H PU
9 P47/INT2 I AC Pulse
10 RESET I Reset Reset : L PU
11 P91/XCO O METAL METAL : H
12 P90/XCI O HIGH HIGH : H
13 VSS GND
14 XIN 4MHz
15 XOUT 4MHz
16 VCC Vu
17-22 P41-P46 I (Pull down) PD
23 P40/INT0 I Power SW ON : L PU
24 P87/PWM O REC MUTE ON : L (PWMControl)
25-27 P84-P86 I (Pull down) PD
28 VEE -22V
29 P83/FL35 I Power ON ON : H
30 P82/FL34 O FL-DIG11 ON : H PD
31 P81/FL33 O FL-DIG10 ON : H PD
32 P80/FL32 O FL-DIG9 ON : H PD
33 P37/FL31 O FL-DIG8 ON : H
34 P36/FL30 O FL-DIG7 ON : H
35 P35/FL29 O FL-DIG6 ON : H
36 P34/FL28 O FL-DIG5 ON : H
37 P33/FL27 O FL-DIG4 ON : H
Pin No. PORT I/O IN OUT RESISTOR
38 P32/FL26 O FL-DIG3 ON : H
39 P31/FL25 O FL-DIG2 ON : H
40 P30/FL24 O FL-DIG1 ON : H
41-48 P10-P17 O (Open)
49 P07/FL15 I (Open)
50 P06/FL14 O FL-SEG7 ON : H
51 P05/FL13 O FL-SEG6 ON : H
52 P04/FL12 O FL-SEG5 ON : H
53 P03/FL11 O FL-SEG4 ON : H
54 P02/FL10 O FL-SEG3 ON : H
55 P01/FL9 O FL-SEG2 ON : H
56 P00/FL8 O FL-SEG1 ON : H
57-64 P20-P27 I (Pull down) PD
65 P57/SC22 I SYS-IN
66 P56/SC21 O SYS-OUT
67 P55/TD I Reel pulse
68 P54/RD O Solenoid ON : H PD
69 P53/SC12 O Main motor ON : H PD
70 P52/SC11 O Loading IN : H PD
71 P51/SO1 O Loading+ OUT : H PD
72 P50/SI1 O N/H/M NOR:L,HIGH:M,MET:H
73 AVSS GND
74 VREF +5V
75 P65/AN11 O BIAS ON : L PU
76 P64/AN10 O REC/PB PB : L PD
77 P63/AN9 I (Pull down) PD
78 P62/AN8 O LINE MUTE ON : L PD
79 P77/AN7 I Mecha SW3 AD(Error erase F,Error erase R) PU
80 P76/AN6 I Mecha SW2 AD(70,METAL) PU
AD INPUT PORT
PIN NAME VOLTAGE AREA STANDARD VOLTAGE MODE
6 AN0 (ope 1) 4.58 – 5.00 5.00 OFF
3.75 – 4.58 4.17 –
2.92 – 3.75 3.34 MODE
2.10 – 2.92 2.51 DOLBY
1.25 – 2.10 1.67 DIREC.
0.41 – 1.25 0.83 PLAY
0.00 – 0.41 0.00 STOP
5 AN1 (ope 2) 4.58 – 5.00 5.00 OFF
3.75 – 4.58 4.17 –
2.92 – 3.75 3.34 EJECT
2.10 – 2.92 2.51 COUN.
1.25 – 2.10 1.67 REC
0.41 – 1.25 0.83 REW
0.00 – 0.41 0.00 FF

KX-E100
T401
POWER ON
(Q115, 116)
FILAMENT
POWER ON
TAPE SELECTOR
(Q108,109)
POWER ON
POWER
SUPPLY
IC103
IC104
Q117
Q120
-22V
VU5
+12V
VA
FL DISPLAY
M
M
MAIN MOTOR
SOLENOID
LOADING MOTOR
CASSETTE
MECHA
LOADING
UNIT
DOLBY B/C NR
(IC203)
OPERATION
SWITCH
(SW301~311)
µCOM
IC205
LOADING
CONTROL
(IC101)
MECHA CONTROL
(VR101, Q101,104)
MECHA SENSOR
SYSTEM
CONNECTOR
(JK101)
REEL PULSE
RESET
A/D
AC PULSE
METER LEVEL
TAPE SELECTOR
DOLBY CONT
34
56M
ABç
9
S
0
78
BIAS ON/OFF £
REC MUTE N
LINE MUTE ¶
R/P CONT §
{
2
yz
~å
3J
3
5
8
9
4
C
1
7
1ß®
|}
T~_
j~p
REC LEVEL
(VR301)
REC LEVEL
(VR203,204)
BIAS ADJ.
(VR103,104)
PB LEVEL
(VR201,202)
MPX
(FI201,202)
PB AMP.
(IC202)
REC AMP.
(IC204)
EQ
R/P CONT
(IC201)
LINE IN LINE OUT
R/P HEAD
REC IN
2K 9D
5H C 04I
PB IN REC OUT
6G
LINE OUT
ERASE
HEAD
4
6
2
8
METER DRIVER
(IC102)
METER LEVEL
70µON/OFF
(Q201,202)
LINE MUTE
(Q113,114)
R/P CONT (Q203,204)
TAPE SELECTOR
BIAS ON/OFF
(Q112,122)
REC MUTE
DOLBY CONT (Q205,206)
105kHz
(FI203,204)
E2DF
BIAS OSC
L101, Q106,107
E-13/J-11
■BLOCK DIAGRAM

ABCDEFGH I J
1
2
3
4
5
6
7
KX-E100
INOUT
SYSTEM
CONNECTOR
Point 1(Both end of C105) REC mode
V : 20V/div
H : 5 sec/div
DC range
10 : 1 prove
Point 2( CH1 : Pin 10 of IC205, CH2 : OUT of IC103 )
V : CH1=2V/div, CH2=5V/div
H : 0.5 sec/div
DC range
1 : 1 prove
0V
0V
CH1
CH2
AC POWER ON AC POWER OFF
●Semiconductor Location
Ref. No. Location
D108 G5
D115 H5
D116 H5
D117 G5
D118 G5
Q101 C3
Q102 C3
Q103 C3
Q104 C4
Q105 C4
Q106 D3
Q107 D3
Q108 E3
Q109 E3
Q110 E3
Q111 E3
Q112 E3
Q113 H4
Q114 H3
Q115 F4
Q116 F4
Q117 G5
Q118 G3
Q119 G3
Q120 G4
Q121 G4
Q122 E3
IC101 F5
IC102 F3
IC103 G4
IC104 G3
F1 F2 -22V REP SOL MOT LO- LO+ BIAS MSW3 MSW2 MSW1 LSW MR ML P-ON ACP +5V HIGH MET
LIS GM LOS L- L+
AC3 AC4 AC5 AC6 F1 F2
ER
GE RR PL GB
Vu5 SYN GU LM LIR LIL GA VA LOR LOL
To/From : MAIN (2)
From : MAIN (4)
To/From : CASSETTE MECHA
TAPE SPEED ADJ. RECORDING LEVEL & BIAS ADJ.
To : MAIN (2)
RRS
MES
FRS
HS
70S
SO
RP
+5V
PLS
MO
GM
MB
MA
2
1
E-15/J-13
■PRINTED CIRCUIT BOARD
P.C.B. MAIN (1) (Lead Type Devices)
E-14/J-12

ABCDEFGH I J
1
2
3
4
5
7
KX-E100
6
●Semiconductor Location
Ref. No. Location
D101 C2
D102 B3
D103 F4
D104 E3
D105 F3
D106 F3
D107 F4
D109 F2
D110 G3
D111 F4
D112 F3
D113 G4
D114 G4
D119 G2
BR
BE
BR
BE
RE
RE
F2 F1 AC6 AC5 AC4 AC3
To : MAIN (1)
E-16/J-14
■PRINTED CIRCUIT BOARD
P.C.B. MAIN (1) (Surface Mount Devices)
P.C.B. MAIN (4) (Lead Type Devices)
P.C.B. MAIN (5) (Lead Type Devices) R model only
E-17/J-15

ABCDEFGH I J
1
2
3
4
5
6
7
KX-E100
23
Point 2( CH1 : Pin 10 of IC205, CH2 : OUT of IC103 )
V : CH1=2V/div, CH2=5V/div
H : 0.5 sec/div
DC range
1 : 1 prove
Point 3(Pin 15 of IC205)
V : 2V/div
H : 0.1 sec/div
DC range
1 : 1 prove
CH1
CH2
0V
0V
●Semiconductor Location
Ref. No. Location
D201 D5
D202 D5
D203 E6
D204 E5
D205 E5
D206 E5
D207 C5
D208 H5
D209 E6
IC205 C5
AC POWER ON AC POWER OFF
●Semiconductor Location
Ref. No. Location
Q201 F2
Q202 F2
Q203 E2
Q204 D2
Q205 D2
Q206 D2
Q209 E2
Q211 D3
Q212 D2
IC201 F2
IC202 E2
IC203 G2
IC204 H2
F1 F2 -22V REP SOL MOT LO- LO+ BIAS MSW3 MSW2 MSW1 LSW MR ML P-ON ACP +5V HIGH MET Vu5 SYN GU LM LIR LIL GA VA LOR LOL
To/From : MAIN (1)
To : MAIN (3)
To/From : MAIN (3)
PLAYBACK LEVEL ADJ. RECORDING LEVEL ADJ.
To/From : R/P & ER HEADS
LIR
F2
F1 S1 S2 S3 S4 S5 S6 S7 D1 D2 D3 Gu D4 D5 D6 D7 D8 D9 D10 D11 PSW OPE1 OPE2 Gu
DIR GA DIL LIL
PL
RL
GA
RR
PR
GE
ER
ER
GE RR PL GB
From : MAIN (1)
E-19/J-17
■PRINTED CIRCUIT BOARD
P.C.B. MAIN (2) (Lead Type Devices)
P.C.B. MAIN (2) (Surface Mount Devices)
E-18/J-16

ABCDEFGH I J
1
2
3
4
5
7
KX-E100
6
REC/
PAUSE
DOLBY NR
REC LEVEL
DIRECTION
STANDBY/ON
COUNTER
RESET
MODE
From : MAIN (2)
Gu
OPE2 OPE1 PSW D11 D10 D9 D8 D7 D6 D5 D4 Gu D3 D2 D1 S7 S6 S5 S4 S3 S2 S1 F1 F2
To/From : MAIN (2)
LIR DIR GA DIL LIL
1 31
E-20/J-18
■PRINTED CIRCUIT BOARD
P.C.B. MAIN (3) (Lead Type Devices)
P.C.B. MAIN (3) (Surface Mount Devices)
E-21/J-19

A
1
2
3
4
5
6
7
8
9
10
11
B C D E F G H I J K L M N
KX-E100
BCE
BCE
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
2SD23942SB1237
2SD1858
DTC114ES
DTC144ES
2SC1740S
2SD1915F
2SA933S
DTC143XS
2SB1237 µPC1330HAAll diodes
Anode
Cathode 1
9
BA6138
1
9
LB1641 CXA1560SNJM7812FA
AN78N05 M38B57M6-135FP
1
10
ECB
NJM2043L-D
1
8
OUT
COM
IN
ECB1
11
22
CXA1597P
1 24
25
40
4164
65
80
1
8
16
IC103 : NJM7812FA
IC104 : NJM78N05
Voltage Regulator
IC101 : LB1641
Motor Driver
IC102 : BA6138
1/2 Power Compressor Amp.
IC201 : uPC1330HA
2 ch Head Selector
IC202 : NJM2043L-D
OP Amp.
IC203 : CXA1560S
Dolby B-C NR
IC204 : CXA1597P
Recording Equalizer
INPUT
OUTPUT
COMMON
23
P1
5
IN 1
1
GND
4VZ
6IN 2
OUT 1
8
VCC 2
10
OUT 2
9
P2
INPUT LOGIC
PRE DRIVER
7
VCC 1
9
4
3 2 1 8 7 5
6
Vreg
COMPCOMP
AMP AMPOUT OUT
MUT
Vcc
DET1 DET2 GND
IN2
OUT1 OUT2MUT
IN1
INVERTER
COMPARATOR
1
SWR 1
2
GND
3
SWP 1
4
CONT
5
GND
6
VCC
9
SWR 2
8
GND
7
SWP 2
–IN1
2
+IN1
3
–VCC
4
+IN2
5
–IN2
6
OUT2
7
+VCC
8
OUT1
1
–
+
–
+
22 21 20 19 18 17 16 15 14 13 12
1 2 3 4 5 6 7 8 9 10 11
IREF
MOA
MOA
SSK
SSK
HLS
HLS
HDET LDET
LDETHDET
LLS
LLS
REC AMP
REC AMP
Mode
Control
Vcc
VEE
VCT PBIN1 LINEIN1 MPXIN1 MPXOUT1 LINEOUT1 TCH1 TCL1 RECOUT1 MODE VCC
IREF
PBIN2
LINEIN2
MPXIN2
MPXOUT2
LINEOUT2
TCH2
TCL2
RECOUT2
NRSW
VEE
CONTROL
VG
BIAS
REC EQ1
REC EQ2
Gp CAL REC MUTE REC CAL REC IN2 IREF BOOST2 VCC REC OUT2
SPEED
TAPE EQ
DGND
REC IN1
GND
BOOST1
VEE
REC OUT1
16
1
15
2
14
3
13
4
12
5
11
6
10
7
9
8
Point 1(Both end of C105) REC mode
V : 20V/div
H : 5 µsec/div
DC range
10 : 1 probe
Point 2(CH1 : Pin 10 of IC205, CH2 : OUT of IC103)
V : CH1=2V/div
CH2=5V/div
H : 0.5 sec/div
DC range
1 : 1 probe
Point 3(Pin 15 of IC205)
V : 2V/div
H : 0.1 µsec/div
DC range
1 : 1 probe
CH 1
0V
0V
CH 2
AC Power ON AC Power OFF
H All voltage are measured with a 10MW/V DC electric volt meter.
HComponents having special characteristics are marked sand must be replaced
with parts having specifications equal to those originally installed.
HSchematic diagram is subject to change without notice. E-22/J-20
SCHEMATIC DIAGRAM
The voltages are measured using normal tape in the
PLAY mode (no-signal condition).
Only the voltage in ( ) are in the REC mode.
0(0)
02.6
2.1
4.7 4.7
4.8
-0.1
-0.1
4.7
(4.7)
4.2(4.2)
4.2(4.2)
0(0)
-0.1
0
0
0
4.8
0
0
0
0
4.6
0
0 0
0
~
0(4.7) 4.8
0 0 0 0 0 0
4.7 2.2 2.0 ~ ~ 2.0 2.0
~ ~ ~ ~ ~ ~ ~
0
-16.3 -16.3 -16.3 -16.3 ~ ~ ~ -19.3 -19.3 -19.3 -19.3 -19.3 -19.3 -19.3 ~ ~ ~ ~ ~ ~ ~ ~
0 0 0 0 0 0 0
0 4.7 0 4.6(4.7) 1.7(1.6) 0 4.7 4.8
4.8
0
0
-22.2
4.5
~
~
~
-19.3
-19.3
-19.3
-19.3
-19.3
-19.3
-19.3
~
0(0)
0(0)
4.6(4.7)
0
(0)
0(0)
0(0)
0(0)
0(0)
0(0)
0(0)
0(0)
0(0)
4.2
(4.2)
~(~)
~(~)
12.0(12.0) 12.0(12.0)
12.0(12.0)
12.1(12.1)
12.1(12.1)
11.3(11.3)
0(0) 0(0) 0(0)
0(4.7)
0(0)
8.6(4.9)
0(0) 0(0) 0(0)
4.4(5.1)
4.4(5.1) 4.4(5.1)
0(0)
0(0)
0(0)
0(0)
4.2
(4.2)
4.2
(4.2)
4.4
(5.1)
4.4(5.1)
4.5(5.1)
8.6(9.9)
6.0 (6.0)
1.2 (1.2)
6.0 (6.0)
6.0 (6.0) 6.0 (6.0)
6.0(6.0) 6.0(6.0) 6.0(5.9)
0.3 (0.3)
6.0 (6.0)
6.1(6.0)
0 (0)
~(~)
6.0 (5.9) 6.0(6.0) 6.0(6.0)
6.0 (6.0)
0(10.1) 12.1(12.1)
6.0(5.9) ~(~)
0.3 (0.4)
0(10.1)
0(10.1)
4.8(0)
0(0)
0(0)
0(0)
0(0)
0(2.4)
0(0)
6.0(6.0)
6.0(6.0)
6.0(6.0)
0(0)
6.0(6.0)
3.5 (3.5) 0(4.7) 2.3(2.3) 6.0(6.0) 1.2(1.2) 6.0(6.0)
12.1(12.1)
6.0(6.0)
2.3
(2.3)
0(0)
0(0)
0(0)
0(0)
4.6(4.6) 4.8(0)
0(4.7)
4.8 (4.8)
4.7
(4.7)
4.3(4.3)
4.8(4.8)
4.7(4.7)
5.5(5.5)
5.5(5.5)
0(6.0)
0(0)
0(7.8)
0(7.8)
0(0.1)
0(0.1)
0
(0.1)
0 (0.1)
4.7(4.7)
0(0)
0(0)
0(0)
0(0)
0(0)
0(0)
0(0)
0(4.6)
0(0)
9.9(0)
0 (3.9) 0
(3.9)
0(3.3)
0(8.5)
0(8.5)
19.4(19.1)
~(~) ~(~)
2.0(2.0)
0(0)
0(0)
0.5(0.5) 0.7(0.7) 0.4
(0.6)
0(0)
0(0)
0(0) 12.1
(12.1)
0.7 (0.7) 0.5 (0.5)
2.0(2.0)
~(~) ~(~)
11.4
(11.3)
4.2
(4.2)
3.7
(3.7)
0(0)
0(0)
0(0)
0(0)
-0.1
(0)
0(0)
0(0)
0(0)
0(0) 7.0
(7.1)
12.6
(12.6)
12.6
(12.6)
12.1(12.1)
12.1(12.1) 19.4(19.2)
19.4(19.2)
19.4
(19.1)
19.4
(19.1)
19.4
(19.1)
19.4(19.1)
1.6(1.6)
AC3.2
AC24.7
AC16.9
19.4
(19.1)
5.5(5.5)
0.6(0.6)
19.2(19.0)
4.2(4.2)
3.5(3.5)
-15.7
-16.8(-16.8)
-22.2
(-22.2)
-22.8
(-22.8)
0(0)
0(0)
0(0)
0(0)
0(0)
0.5(0)
0.5(0)
-28.7
(-28.5) -28.8
(-28.6)
-15.7
-16.3
-16.3
-16.3
- 16.3
TAPE SPEED ADJ.
PLAYBACK
LEVEL ADJ. (R ch)
PLAYBACK (L ch)
PLAYBACK LEVEL
ADJ. (L ch)
RECORDING LEVEL & BIAS ADJ. (L ch)
RECORDING
LEVEL & BIAS
ADJ. (R ch)
RECORDING LEVEL & BIAS ADJ. (L ch)
RECORDING LEVEL & BIAS ADJ. (R ch)
RECORDING (R ch)
3
2
1
2
M
8
M
7
M
9
D
7
D
2
D
8
1
2
3
4
5
6
7
8
9
10
11
12
13
1. R •REC
2. METAL
3. F •REC
4. CASS IN
5. CrO2
6. +SOL
7. SENSOR OUT
8. +5V SENSOR
9. PLAY SW
10. +MTR
11. –COM
12. MTR SPEED B
13. MTR SPEED A
MAIN PCB
–
+
B
A
MABUCHI
MTR
MECHA CHASSISPH TYPE (JST)
SOL
1
2
3
4
5
1. LOAD OUT (+)
2. LOAD IN (+)
3. LOAD OUT
4. COM
5. LOAD IN
LOADING PCB
PH TYPE (JST)
MTR
+
1. Lch
R / P HD
PH CONNECTOR
–
+
–
+
L
R
E HD
+
2. Lch –
3. Rch –
4. Rch +
5. E –
6. E +
CASSETTE MECHANISM
REC/PB CONTROL
PB AMP.
DOLBY B-C NR
REC AMP.
BIAS OSC
BIAS ON/OFF
METER
DRIVER
POWER SUPPLY
LOADING CONTROL
OPERATION SW
FL DISPLAY
SYSTEM CONTROL
M38B57M6-135FP
LOADING PCBMAIN PCB
CB2
CB3
CB2
CB1
CB3
CB1

KX-E100
23
■WARNING
Components having special characteristics are marked sand must be
replaced with parts having specifications equal to those originally in-
stalled.
●Carbon resistors (1/6W or 1/4W) are not included in the ELECTRICAL
PARTS List. For the parts No. of the carbon resistors, refer to last page.
ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS:
C.A.EL.CHP : CHIP ALUMI.ELECTROLYTIC CAP
C.CE : CERAMIC CAP
C.CE.ARRAY : CERAMIC CAP ARRAY
C.CE.CHP : CHIP CERAMIC CAP
C.CE.ML : MULTILAYER CERAMIC CAP
C.CE.M.CHP : CHIP MULTILAYER CERAMIC CAP
C.CE.SAFTY : RECOGNIZED CERAMIC CAP
C.CE.TUBLR : CERAMIC TUBULAR CAP
C.CE.SMI : SEMI CONDUCTIVE CERAMIC CAP
C.EL : ELECTROLYTIC CAP
C.MICA : MICA CAP
C.ML.FLM : MULTILAYER FILM CAP
C.MP : METALLIZED PAPER CAP
C.MYLAR : MYLAR FILM CAP
C.MYLAR.ML : MULTILAYER MYLAR FILM CAP
C.PAPER : PAPER CAPACITOR
C.PLS : POLYSTYRENE FILM CAP
C.POL : POLYESTER FILM CAP
C.POLY : POLYETHYLENE FILM CAP
C.PP : POLYPROPYLENE FILM CAP
C.TNTL : TANTALUM CAP
C.TNTL.CHP : CHIP TANTALUM CAP
C.TRIM : TRIMMER CAP
CN : CONNECTOR
CN.BS.PIN : CONNECTOR,BASE PIN
CN.CANNON : CONNECTOR,CANNON
CN.DIN : CONNECTOR,DIN
CN.FLAT : CONNECTOR,FLAT CABLE
CN.POST : CONNECTOR,BASE POST
COIL.MX.AM : COIL,AM MIX
COIL.AT.FM : COIL,FM ANTENNA
COIL.DT.FM : COIL,FM DETECT
COIL.MX.FM : COIL,FM MIX
COIL,OUTPT : OUTPUT COIL
DIOD.ARRAY : DIODE ARRAY
DIODE.BRG : DIODE BRIDGE
DIODE.CHP : CHIP DIODE
DIODE.VAR : VARACTOR DIODE
DIOD.Z.CHP : CHIP ZENER DIODE
DIODE.ZENR : ZENER DIODE
DSCR.CE : CERAMIC DISCRIMINATOR
FER.BEAD : FERRITE BEADS
FER.CORE : FERRITE CORE
FET.CHP : CHIP FET
FL.DSPLY : FLUORESCENT DISPLAY
FLTR.CE : CERAMIC FILTER
FLTR.COMB : COMB FILTER MODULE
FLTR.LC.RF : LC FILTER,EMI
GND.MTL : GROUND PLATE
GND.TERM : GROUND TERMINAL
HOLDER.FUS : FUSE HOLDER
IC.PRTCT : IC PROTECTOR
JUMPER.CN : JUMPER CONNECTOR
JUMPER.TST : JUMPER,TEST POINT
L.DTCT : LIGHT DETECTING MODULE
L.EMIT : LIGHT EMITTING MODULE
LED.DSPLY : LED DISPLAY
LED.INFRD : LED,INFRARED
MODUL.RF : MODULATOR,RF
PHOT.CPL : PHOTO COUPLER
PHOT.INTR : PHOTO INTERRUPTER
PHOT.RFLCT : PHOTO REFLECTOR
PIN.TEST : PIN,TEST POINT
PLST.RIVET : PLASTIC RIVET
R.ARRAY : RESISTOR ARRAY
R.CAR. : CARBON RESISTOR
R.CAR.CHP : CHIPRESISTOR
R.CAR.FP : FLAME PROOF CARBON RESISTOR
R.FUS : FUSABLE RESISTOR
R.MTL.CHP : CHIP METAL FILM RESISTOR
R.MTL.FLM : METAL FILM RESISTOR
R.MTL.OXD : METAL OXIDE FILM RESISTOR
R.MTL.PLAT : METAL PLATE RESISTOR
RSNR.CE : CERAMIC RESONATOR
RSNR.CRYS : CRYSTAL RESONATOR
R.TW.CEM : TWIN CEMENT FIXED RESISTOR
R.WW : WIRE WOUND RESISTOR
SCR.BND.HD : BIND HEAD B-TITE SCREW
SCR.BW.HD : BW HEAD TAPPING SCREW
SCR.CUP : CUP TITE SCREW
SCR.TERM : SCREW TERMINAL
SCR.TR : SCREW,TRANSISTOR
SUPRT.PCB : SUPPORT,P.C.B.
SURG.PRTCT : SURGE PROTECTOR
SW.TACT : TACT SWITCH
SW.LEAF : LEAF SWITCH
SW.LEVER : LEVER SWITCH
SW.MICRO : MICRO SWITCH
SW.PUSH : PUSH SWITCH
SW.RT.ENC : ROTARY ENCODER
SW.RT.MTR : ROTARY SWITCH WITH MOTOR
SW.RT : ROTARY SWITCH
SW.SLIDE : SLIDE SWITCH
TERM.SP : SPEAKERTERMINAL
TERM.WRAP : WRAPPING TERMINAL
THRMST.CHP : CHIP THERMISTOR
TR.CHP : CHIP TRANSISTOR
TR.DGT : DIGITAL TRANSISTOR
TR.DGT.CHP : CHIP DIGITAL TRANSISTOR
TRANS : TRANSFORMER
TRANS.PULS : PULSE TRANSFORMER
TRANS.PWR : POWERTRANSFORMER ASS’Y
TUNER.AM : TUNER PACK,AM
TUNER.FM : TUNER PACK,FM
TUNER.PK : FRONT-ENDTUNER PACK
VR : ROTARY POTENTIOMETER
VR.MTR : POTENTIOMETER WITH MOTOR
VR.SW : POTENTIOMETER WITH ROTARY SW
VR.SLIDE : SLIDEPOTENTIOMETER
VR.TRIM : TRIMMER POTENTIOMETER
Note) Those parts marked with “#” are not included in the P.C.B. ass’y.
PARTS LIST
■ELECTRICAL PARTS