Kenwood KRC-225 User manual

CASSETTE RECEIVER
KRC-225/235
SERVICE MANUAL © 2001-11 PRINTED IN KOREA
B51-7854-00 (K) 1748
KRC-265/S
KRC-265/S
KRC-235
KRC-225
Panel assy
(A64-2505-02)
Plastic cabinet assy
(A02-1486-13)
Lever
(D10-3031-04)x2
Mounting hardware assy
(J21-9491-13)
DC cord
(E30-4783-05):KRC-225/235
DC cord
(E30-4784-05):KRC-265/S
Screw set
(N99-1610-15)
Screw set
(N99-1719-05)
Escutcheon
(B07-2124-02)
Panel assy
(A64-2506-02)
Escutcheon
(B07-2124-02)
Panel assy
(A64-2507-02):KRC-265
(A64-2634-02):KRC-265S
Escutcheon
(B07-2124-02):KRC-265
(B07-3049-02):KRC-265S

KRC-225/235/265/265S
2
BLOCK DIAGRAM
IC1
KEY
PAN 5V
MUTE
B.U. DET. B.U.
ACC
P-CONT.
MUTE
PRE
POWER IC
EQ. AMP.
CH ISO AMP
N.C.MPX
E-VOL.
CD/MD
CHANGER
FRONT Lch
FRONT Rch
REAR Lch
REAR Rch
J2
LCD DRIVER
LCD
MAIN
TAPE MECHA.
IC5
1 Lch
2 Rch
PRE OUT
IC2
IC4
IC3 Q150,153
SP OUT
REAR
J4
RST
PAN IN SW
ANT-CONT.
P-CONT.
J2
Q370,371
Q450,451
Q50
Q350-353
Q58-61
Q54-57
Q53
Q320 Q301
Q51,52
J5
IC1
ED1
FM+B
Q200,201
AM+B
Q202,203
AM BPF
FM BPF
SW 5V
COM +B
ILLUMI.
B.U.5V
SYSTEM MI-COM
RST SW
ANT-CONT.
FM ANT
AM ANT
RF GND
FM+B
AM+B
OSC GND
OSC GND
OSC GND
VT
PLL +B
IFC OUT
SDA
SCL
DIG GND
IF1+B
IF1 GND
S-METER
IF2 GND
SD
FM+B
SW5V
ACC DET
B.U. DET
SCL
MUTE
SDA
P CON
PANEL HOLD L CLK L DATA S L DATA L FWD/REV MOTOR
CH CON
DATA H DATA C
REQ H REQ C
CH CLK
Rch
COM
Lch
TAPE
MP IN
AM
MPX
OUT RR
OUT LR
OUT RF
Rch
LEVEL
SCL
SDA
OUT LF
Rch
STBY
MUTE
Rch
Lch
T-MUTE
FWD
REV
B.U.5V
B.U.
8V
B.U.
CHRST
S MUTE
8
4
65
B.U.5V
AM+B
VDD 5V
PACK IN L CE
ANT CON
CHMUTE
BEEP
SVR
AMP. STBY
SVR
AC GND (BEEP)
Lch Lch
Rch Lch
1200mV
TAPE :1681mV
CD/MD-CH :3529mV
AM :546mV
FM :1781mV
8V
RF GND
OSC GND
IF2 +B
AUDIO OUT
8V
S-METER
SD
PLL CLK
PLL DATA
HEAD
PLAY
R
55.6mV
BU5V
SW5V
8V
B.U.5V
AM: 170mV
FM: 400mV
L
PACK IN
(FF/REW)
AMP. MUTE
FF/REW
BU5V
ILL
P-CONT.
/ANT-CONT.
(X16-)
(X14-)
M
KRC-265/S
KRC-225/235
KRC-235,265/S
A1
MOTOR SW
Q260,261
ACC. DET.
5V
Q1
,Q151

KRC-225/235/265/265S
3
COMPONENT DESCRIPTION
Ref.No. Component Name Application/Function Operation/Condition/Compatibility
IC1 LC72366-9592 System MI-COM. System control
IC2 TDA7461ND E-VOL. & N.C. MPX Controls sound volume. Selects each source.
IC3 HD74HC27FP Mute logic 3-input NOR gate x 3
IC4 TDA7384A or Power IC Amplifies power so that the speaker can drive audio signal.
TDA7386
IC5 LA3161 Equalizer amplifier Equalizer amplifier for cassette tape sound
2SC2412K or BACK-UP detection While BACK-UP is added, a base becomes Hi, and Q50 is
Q50 2SD601A (Momentary power down turned on.
detection) SW
Q51 2SB1443 While BACK-UP is added, AVR outputs +5V.
Q52 2SC2412K or BACK-UP 5V AVR Q51 and Q52 is inverted Darlington connection.
2SD601A
Q53 DTA114YK or UN2114 P.ON 5V SW While a base becomes Lo, Q53 is turned on.
or KRA107S
Q54 DTC144EK or UN2213 While Q54's base becomes Hi, Q55 is turned on.
or KRC104S COM+B SW
Q55 DTA124EK or UN2112 Works during POWER ON mode.
or KRA103S
2SA2057 or 2SB1548
Q56 (P) or 2SB1565(E,F) While Q57's base becomes Hi, Q56 is turned on.
or 2SB1655(E,F) COM+B AVR
Q57 2SC2412K or Q56 and Q57 is inverted Darlington connection.
2SD601A
Q58 DTC144EK or UN2213 While Q58's base becomes Hi, Q59 is turned on.
or KRC104S Illumination +B SW
Q59 DTA124EK or UN2112 Works during POWER ON mode with a panel attached
or KRA103S to the set.
2SA2057 or 2SB1548
Q60 (P) or 2SB1565(E,F) While Q61's base becomes Hi, Q60 is turned on.
or 2SB1655(E,F) Illumination +B driver
Q61 2SC2412K or Q60 and Q61 is inverted Darlington connection.
2SD601A
DTC124EK or UN2212 When BACK-UP detection SW or CHANGER RESET SW or
Q150 or KRC103S Electric volume mute SW MI-COM.'s mute works, a base becomes Hi, and Q150
is turned on.
Q151 DTC114YK or UN2214 SVR discharge SW When POWER IC RESET is activated, a base becomes Hi,
or KRC107S Q151 is turned on.
DTA124EK or UN2112 When BACK-UP detection SW or CHANGER RESET SW or
Q153 or KRA103S Pre-out mute driver MI-COM.'s mute works, a base becomes Lo, and Q153
is turned on.
Q200 DTC124EK or UN2212 Q201 is turned on when Q200's base becomes Hi.
or KRC103S FM +B SW
Q201 2SB1277(Q,R) Works during FM reception mode.
Q202 DTC124EK or UN2212 Q203 is turned on when Q202's base becomes Hi.
or KRC103S AM +B SW
Q203 2SB1277(Q,R) Works during AM reception mode.
¶SWITCH UNIT(X16-1490-XX)
Ref.No. Component Name Application/Function Operation/Condition/Compatibility
IC1 LC75853NE LCD driver with key-matrix
Q1 DTA114EK or UN2111 Key-matrix permission SW Ready on key-matrix
or KRA102S
¶SYNTHESIZER UNIT(X14-6850-XX)

KRC-225/235/265/265S
4
COMPONENT DESCRIPTION
Ref.No. Component Name Application/Function Operation/Condition/Compatibility
Q260 DTC114YK or UN2214 When Q260's base becomes Hi, Q261 is turned on.
or KRC107S Motor +B SW
Q261 2SB1443 Works during TAPE mode.
Q301 DTA144EK or UN2113 Changer reset SW When a base becomes Lo, Q301 is turned on.
Q320 2SA1037K Panel 5V SW While a panel is attached to the set, a base becomes Lo, and
Q320 is turned on.
Q350 2SB1277(Q,R) P-CON. driver When Q353's base becomes Hi, Q350 is turned on.
Q351 2SA1037K P-CON. protection SW Works when P-CON is being short-circuited on GND.
Q352 DTA124EK or UN2112 P-CON. protection Inhibits protection SW function when P-CON works momentary.
or KRA103S inhibit SW
Q353 DTC114YK or UN2214 P-CON. SW Q353 is turned on when a base becomes Hi. Works during
or KRC107S POWER ON mode.
Q370 2SB1277(Q,R) Q370 is turned on when Q371's base becomes Hi.
Q371 DTC114YK or UN2214 ANT-CON. SW Works during TUNER mode.
or KRC107S
Q450 DTC143TK or UN2216 Pre-out mute SW (R ch.) When BACK-UP detection SW or CHANGER RESET SW or
Q451 DTC143TK or UN2216 Pre-out mute SW (L ch.) MI-COM.'s mute works, a base becomes Hi, and Q450,451
are turned on.
¶SYNTHESIZER UNIT(X14-6850-XX)

KRC-225/235/265/265S
5
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name I/O Description Processing Operation
1 XIN I Main clock resonator connection terminal
2 GND - TEST terminal 2 Connected to GND lines.
3 L DATA L I Data input from the LCD driver IC
4 L DATA S O Data output to the LCD driver IC
5 L CLK O Clock output to the LCD driver IC
6 L CE O CE output to the LCD driver IC
7 SDA I/O Data input/output with the E-VOL. IC
8 PLL DATA I/O Data input/output with the F/E
9 PLL CLK O Clock output to the F/E
10 SD I SD input from the F/E Hi : Station detected
11 DATA C I Data input from changers
12 DATA H O Data output to changers
13 CH CLK I/O Clock input/output with changers
14 - O - N.C.(Not used)
15 MOTOR O Cassette motor on/off output Hi : Motor ON
16 SCL O Clock output to the E-VOL. IC
17-24 - O - N.C.(Not used)
25 AM+B O AM+B ON/OFF output Hi : during AM reception
26 FM+B O FM+B ON/OFF output Hi : during FM reception
27 PACK IN I Cassette tape Pack-in detection input Lo : Pack-in
28 FF/REW I FF/REW detection input Lo : FF/REW, Hi : PLAY
29 GND I - Connected to GND lines.
30 GND I - Connected to GND lines.
31 VDD - Positive power supply connection terminal Connected to B.U. 5V lines.
32 REQ C I Request input from changers Lo : Request
33 MUTE O Audio mute on/off output Hi : Mute ON
34 CH CON O Changer control Lo : Standby, Hi : ON
35 REQ H O Request output to changers Lo : Request
When the momentary power down, after ACC
36 SVR O Power IC reset terminal ON/OFF is detected and after POWER OFF,
the output becomes Hi temporarily.
37 AMP STBY O Power IC standby control output Hi : POWER ON mode
38 AMP MUTE O Power IC mute control Lo : Mute
39 P CON O Power control Hi : POWER ON mode
40 ANT CON O Antenna control Hi : during FM/AM reception
41 SW5V O SW 5V control Lo : POWER ON mode
42 ILL O Illumination AVR ON/OFF control terminal Hi : POWER ON mode
43 - O - N.C.(Not used)
44 BEEP O BEEP sound output
45-47 - O - N.C.(Not used)
48 ROLL OFF I Roll off input Pull down to GND lines. (Not used)
49 NOISE I Noise canceller input Pull down to GND lines. (Not used)
CANCELLER
50 SEL1 I Destination input 1 Lo : KDC-225, Hi : KDC-235,265/S
51 SEL2 I Destination input 2 Lo : KDC-265/S, Hi : KDC-225,235
52 SEL3 O Destination input 3 N.C.(Not used)
53 EQ MUTE O Tape equalizer mute on/off output N.C.(Not used)
54 FWD/REV I FWD/REV mode detection input Lo : REV mode
55 - O - N.C.(Not used)
56 REMO I Data input from the remote control KDC-225/235:Pull up to PON5V lines. (Not used)
light sensor KDC-265/S:Pull down to GND lines. (Not used)
57-60 - O - N.C.(Not used)
¶Terminal Description ( IC1 : X14-6850-XX)

KRC-225/235/265/265S
6
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name I/O Description Processing Operation
61 ACC DET I ACC detection input Hi : ACC ON
62 B.U. DET I Momentary power down detection input Hi : When momentary power down detected or
B.U. OFF, Lo : B.U. ON
63 S METER I S-meter input from the F/E
64 PANEL I Panel detaching detection input Lo : Panel not detached
65 GND I - Connected to GND lines.
66 GND I - Connected to GND lines.
67 HOLD I MI-COM. HOLD input Lo : Hold
68 VDD - VDD connection terminal Connected to B.U. 5V lines.
69 GND I - Connected to GND lines.
70 GND I - Connected to GND lines.
71,72 - O - N.C.(Not used)
73 VDD - Positive power supply connection terminal Connected to B.U. 5V lines.
74 GND I - Connected to GND lines.
75 GND I - Connected to GND lines.
76 VSS - Ground connection terminal Connected to GND lines.
77,78 - O - N.C.(Not used)
79 GND - TEST terminal 1 Connected to GND lines.
80 XOUT O Main clock resonator connection terminal
¶Terminal Description ( IC1 : X14-6850-XX)

KRC-225/235/265/265S
7
TEST MODE
1. How to enter the test mode
• Reset the unit while holding the FM key and preset 6
key.
• All indication segments go ON at the beginning of
the test mode.
2. How to release the test mode
• Simply reset the unit.
• (NOTE) The test mode is not canceled by ACC OFF,
power OFF, momentary power down or the panel
off.
3. Audio adjustment
• Set the volume level to -10dB (which is shown as
"30" on the display).
• Loudness OFF.
• The BASS / TREBLE and BALANCE / FADER con-
trols can be set to the full boost / full cut and full right
/ full left and full front / full rear respectively by press-
ing the Track Up / Track Down keys.
• Sound coordination doesn't appear for the Audio
mode feed.

KRC-225/235/265/265S
8
ADJUSTMENT
Set the controls and switches as follows.
BALANCE : center position BASS : center position LOUDNESS : OFF
FADER : center position TREBLE : center position
OUTPUT RECIEVER ALIGNMENT
SETTINGS SETTINGS POINTS
1) During FWD transport adjust and ' so that
line A of 2-LINE TAPE passes through the center
of the head shield plate (core center area)
2) During RVS transport adjust and ' so that
line B of 2-LINE TAPE passes through the center
of the head shield plate (core center area)
3) After the alignment above, reverse the transport
direction and check the FWD alignment again. If it
is deviated, perform alignment again. (Tape used :
SCC-1659, manufactured by A-BEX)
[2] HEAD
AZIMUTH
TCC-153
10kHz
Connect an AC
voltmeter and
oscilloscope to
SP outputs.
TAPE PLAY Head Azimuth
Screw
Adjust the azimuth for each L ch/R ch or FWD/RVS
becomes maximum.
CASSETTE DECK SECTION
HEAD
HEIGHT
[1]
No. ITEM TAPE ALIGN FOR
Head Height
Screw
TAPE PLAY-SCC-1659
F
R R
F
(2-LINE TAPE)
B
A
B
A
(FWD)
(RVS)
HEIGHT
(FWD)
HEIGHT/AZIMUTH
(FWD)
HEIGHT/AZIMUTH
(RVS)
TAPE SPEED
HEIGHT
(RVS)
F''
F
R
R

ABDFHJCEG I
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Foil side view)
109
REMO
GND
W100
W28
W75
W85
W22
W33
W73
W67
W72
W65
W13
W96
W35
W200
W36
W68
W64
W15
W8
W31
W71
W69
W27
W79
W76
W34 W39 W43 W46
W51
W98
W99
W23
L3
R50
R65
R351
R353
R66
W48
W10
X1
C50
C17
C18
C160
C152
C55
W40
W20
C15
C16
C161
C350
C352
C162
C450
C451
C150
C159
C56
C58
C53
C57
W58
W94
W95
W101 W54 W41
W53 W29
W12
W16
W18
W7
R261
L5
R260
L4
C402
C400
C401
W5
W14
W17
W11
C4
C3
C9
C250
C10
W92
W9
W70
W59
W30
W25
W50
W24
W87
W80
W97
W93
W89
W88
W103
W86
W90
W78
W61
W3
W2
W1
W56
W82
W44
W47
W83
W19
W74
W81
W49
W77
W37
W63
W32
W55
W102
W57
W52
W60
W62
W38
W84
W42
W21
W45
L1
4.5MHz
R202
R55
R67
R350
R370
W105
R371
L8
C206
L9
R373
R116
W26
C320
R138
R132
916
18
25 1
224
2
1765109
3841112 13
LR
1
24
2
1
6
1
1
5
1
8
111
122
E
B
E
B
B
E
BE
B
E
B
E
B
E
B
E
(J74-1317-12)
CN1
Q60
Q56
D411
D405
D352
Q51
Q350
D401
D400
D56
D52
D51
D55
D54
D402
D408
D409
D403
D350
D351/W104
D53
Q201Q203
D200
Q261
D404
D260
IC5
J4
J5
J2
J3
J1
A1
D370
IC4
D50
Q370
D371
D151
D150
D152
P1
WH1
D100
CN2
D261
X14-6850-xx
W122
R58
R155
R15
W112
R14
R62
W113
R152
R129
R59
W133
W119
R413
C202
R16
R13
W111
W121
R372
R151
C101
C600
R324
C163
R161
W135
R102
R118
R119
R115
R114
R126
R52
R54
R105
R106
R103
R207
R206
C164
R352
R320
C155
C154
C157
C156
C153
C151
C506
R127
R154
R150
R153
R322
R401
R400
R408 R409
R407
R406
R412
R410
R411
R303 R304
R306
R305
R403
R301
R402
R321
W129
C54
R63 R64
R57
W114
C52
W116
R201R203
R200
C200
C452
C201
R205
R455
R453
R454
R451 R450
R452
R104
C1 C2
C6
C5
C7 C8
R6
R7
R5
R2
R3
R4
C14
R8
C13
R1
C251
R251
R323
W131
W125
C102
C103
W128
W130
R160
W124
W118
R158
W117
W115
W123
R157
R156 R159
R250
R405
R404
R137
W134
W120
R122
R125
R120
R121
R123
R111
R109
W126
R110
W127
R108
W132
R131
C321
TH1
C351
EB
17
148
114
28 15
1
80
64
25
40
24
41
65
EB
EB
BE
BE
EB
BE
EB
EB
EB
EB
EB
EB
BE
EB
BE
BE
BE EB
EB
EB
BEBE
Q61
Q52
Q371
Q59
Q58 Q57
Q153
Q151
Q150
Q55
Q54
Q53
Q50
Q353
Q301
Q320
Q352
Q351
Q202
Q200
Q451
Q450
Q260
IC3
IC2
IC1
Ref. No
(X14-6850-xx)
Address
IC1 5E
IC2 5G
IC3 5F
IC4 2E
IC5 5C
Q50 4D
Q51 4C
Q52 4C
Q53 4C
Q54 3C
Q55 3C
Q56 2B
Q57 3B
Q58 4B
Q59 4C
Q60 3B
Q61 3B
Q150 4G
Q151 3F
Q153 3H
Q200 4G
Q201 4H
Q202 5G
Q203 4H
Q260 6G
Q261 6G
Q301 6D
Q320 6D
Q350 3E
Q351 4F
Q352 4E
Q353 4D
Q370 3E
Q371 4E
Q450 3H
Q451 3H

9
KMOLN
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD
Component side view Foil side view
AM
FM
AUD
PL1
RST654321
PL2
ATT
CLIKAUTO
SRC
129
D2
D1
D4
D3
D5
D6
D7
D8
D9
D10
D11
D12
D14
D15
D13
X16-1490-xx (J74-1298-02)
R13
R14
R18
R8
R11
R12
R19
C4
C2
C1 C5
R3
R4
R2
R1
R21
R20
R5
R6
C6
6449
48
12
33 16
1
1732
11
1
2
EB
Q1
IC1
D17
J1
X16-1490-xx (J74-1298-02)
(X16-1490-xx)
Ref. No Address
IC1 3N
Q1 4N

ABDCE
2
1
3
5
7
4
6
47K
47K
22K
10K
47K
47K
10K
47K
47K
47K
10K
22K
DC CORD
(E30-4783-05)
KRC-225/235 (K)
DC CORD
(E30-4784-05)
KRC-265/265S (M)
∗ A
∗ D
13.6V
14.4V
14.4V
13.6V
10.2V
SW
ANT-CON.
J4
J2
D400
D401
D408
D405
D411
D409
D404
WH1
D261
D260
Q260
D370
4.7K
R350
D350
Q353
Q301
Q58
Q60
Q61
Q59
D56
Q371
Q261
IC1 :
IC2 : TDA7461ND
LC72366-9592
IC3 : HD74HC27FP
IC4 : ∗
IC5 : LA3161
Q50,52,57,61 : 2SC2412K or
2SD601A
Q51,261 : 2SB1443
Q53 : DTA114YK or
UN2114 or
KRA107S
KRA103S
2SA2057 or
KRC104S
Q54,58 : DTC144EK or
UN2213 or
Q55,59,153,352 : DTA124EK or
UN2112 or
Q56,60 :
2SB1655(E,F)
2SB1565(E,F) or
2SB1548(P) or
Q201,203,350,370 : 2SB1277(Q,R)
Q301 : DTA144EK or
UN2113
Q320,351 : 2SA1037K
Q450,451 : DTC143TK or
UN2216
D50 : S2V20∗A or
1N5393G-M6
D51,405,411 : MA4068(N)-M or
D52 : MA4051-L
D53,260,261,350,351,370,371
: AM01Z or
ERA15-01 or
DSM1SD2
HZS7A3L
D54 : MA4056(N)-M
D55 : MA4091(N)-L
D56 : MA4110-L
D100,150-152,352
: 1SS133
D200 : MA4051(N)-M
TOP VIEWJ4
Q150,200,202
UN2212 or
KRC103S
KRC107S
DTC124EK or:
Q151,260,353,371
UN2214 or
DTC114YK or:
MA4062-L
D400,401,404,408,409
:
ILLUMINATION
+B SW ILLUMINATION
+B DRIVER
+B SW
MOTOR
P-CON.
SW
RESET
CHANGER
SW
+B B LINE
GND LINE
SIGNAL LINE
BU
BU
BUBU
BU
BU
BU
BUBU
+B
+B
+B
P5V
+5V
+5V
P5V
+5V+5V
P5V
13
4
3
128
711
2
1
610
59
16 15 14
876
FL+
RL+
FL-
RL-
FR-
RR-
19
23
17
21
3 7
R412 100
R410 4.7K
R409 4.7K
R402 10
R411 100
R406 4.7K
R407 4.7K
R408 1K
R403 100
7
6
5
35
34
1
12
32
11
10 0.47u50
C401
+
R401
C402 0.47u50
+
R400 4.7 C400 22u6.3
+
R405 100K
R404 100K
R413
100K
6
5
4
3
2
1
T.MUTE
GND
MOT GND
MOT +B
PACK IN
GND
10K
R261
1K
R260
4.7K
R370
R351
1K
R353
28
15
1K
R67
1/2W
13
Q370,371
R110 47K
R108 47K
27
41
∗R120 47K
∗R122 47K
∗R121 47K
∗R123 47K
54
63
Q301
2
BU YEL
ACC GND
BLK
RED
BLU/WHT
11
10
9
2 3
1
P. CON/ANT. CON
REAR R VIOL
VIOL/BLK
REAR L GRN/BLK
GRN
GRY
GRY/BLK
14
13 12
6
5
4
WHT/BLK
WHT
16 15
8 7
FRONT R FRONT L
BU YEL
ACC
GND
BLK
RED
BLU/WHT
11
10
9
2 3
1
P. CONT OUT
REAR R VIOL
VIOL/BLK
REAR L GRN/BLK
GRN
BLU
GRY
GRY/BLK
14
13 12
6
5
4
WHT/BLK
WHT
16 15
8 7
ANT. CONT
FRONT R FRONT L
A GND
REQ C
DATA C
8B.U.3
CON
MUTE
4
5
9
10
GND
REQ H
1
2
9
6
7
CLKRch 13
10 6
RST
11
12
75
DATA H
Lch
13 11 12 8 4 3
1
2
39
R132
100K
R104
R102
100K
2.2K
1/2W
Q260,261
Q58,59
Q60,61
1K 1/2W

FHJLNGIKMO
KRC-225/235/265/265S
1
2
6
3
4
5
4.7K 4.7K
22K
22K
47K
10K
22K
22K
47K
10K
22K
22K
47K
22K
47K
22K
22K
22K
22K
22K
IC3
IC5
KRC-225/235/265/265S (1/2)
SYNTHESIZER UNIT (X14-6850-XX)
∗IC4
IC2
IC1
A
CME1 (D40-1136-05)
10K
R161
∗ C
∗ B
0V
0V
5V
0V
5V
0V
5V
10.2V
5.0V
5.0V
5.0V
14.4V
14.2V 8.2V
0V 5V
5V
0V
5V
0V
0V 5V
5V 0V
0V
0V
5.0V
0V
5V
5V
0V
5V
0V
0V 5V
5V
14.4V
0V
0V or 5.0V
5V
0V
5V 0V
0V
5.0V
0V
5.0V
0V
0V
0V
0V
1.3V
0.8V
3.5V
0V
8.2V
3.5V
0.8V
1.3V
0V
7.3V
4.9V
7.3V
14.4V
7.3V
0V
7.3V
7.3V
7.2V
7.2V
0V
7.2V
7.2V
7.3V
7.3V
0V
7.3V
14.4V
7.3V
3.3V
7.3V
0V
5V
0V
0V 5V
0V 5V
0V 5V
0V
5V
0V
5.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.8V
4.0V
0V
5V
0V
5V
0V
8.2V
8.2V
8.2V
8.2V
8.2V
8.2V
8.2V
5.1V
3.4V
0V
4V
0V
4V
0V 5V
BCD
A1
REAR PREOUT
Q450
J5
Q451
D50
D52
D51
Q50
Q350 P-CON.
Q351
D352
Q352
Q151
D151
D152 D150
Q150
Q201
D200
Q203
FM+B SW
J1
CN1
J3
Q320
Q55
Q54
D55
Q56
Q57
+B SW
Q53
Q52
Q51
D53
D54
Q153
(X14-6850-XX)
A
DRIVER
Q51,52
BACK-UP
5V AVR
BACK-UP DETECTION
(MOMENTARY POWER
DOWN DETECTION)
SW
COM
AMPLIFIER
EQUALIZER
Q200
Q202
J1
X16-
2/2
D371
D351
Q370
D100
HD1
S3
M
M1
S1
S2
POWER IC
P-CON.
PROTECTION SW
Q352
P-CON.
PROTECTION
INHIBIT SW
P. O N
5V AVR
SYSTEM MI-COM
SVR DISCHARGE SW
PRE OUT
MUTE DRIVER
MUTE
LOGIC
PANEL 5V
SW
COM+B
AVR
E-VOL. &
N.C. MPX
MUTE SW
PRE OUT
(Rch)
MUTE SW
PRE OUT
(Lch)
FM+B
SW
AM+B
SW
AM+B
SW
FRONT-END
ELECTRIC
VOLUME
MUTE SW
BU
BU
BU BU BU BU
BU
BUBU
BU
BU
BU
BU
BU
BU
BU
+5V
+5V
+5V
P5V
+5V
+5V
+5V +5V
+5V
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B +B +B
+B
+B
+B
+B
+B
+B
+B+B
P5V
+5V
+5VP5V
+5V+5V
P5VP5V
+5V+5V
+5V
L8 4.7uH
41
C163 0.01
0.01
C321
0.01
C202
R129 22K
AM+B
19
23
20
21
22
AUDIO OUT
SD
S-METER
IF1+B
14
17
18
VDD 5V
IF2+B
15
16
SDA
SCL
DIG GND
10
11
12
13
OSC GND
VT
PLL+B
IFC OUT
7
8
9
OSC GND
OSC GND
OSC GND
FM ANT
3
4
5
6
AM ANT
OSC GND
FM+B
1
2RF GND
10u16
C450
+
270
R450
10u16
C451 R451
R454
100
R452
30K
2 Lch
R453
30K
R455
100
+
270
1 Rch
13 12 11 10 9
54321
FR+
RR+
P-ANT
P-CON
ACC
B.U
GND
9
5
17
23
21
19
L1
140uH
3300u16
C50
+
43K
R57
0.01
C52
47K
R55
33K
R52
10K
R54
R352
3.3u25
C350
+
22K
C351
0.1u50
C352
+
0.068
4.7K
R16
0.22u50
C18
0.22u50
C17
4.7K
R15
0.22u50
C15
4.7K
R13
0.22u50
C16 R14
4.7K
100u10
C159
+
+
C160
10u16
R152 1K
R151 4.7K
R153 91K
430
180K
C162 1u50
+
R157 100
R158 33K
0.01
R155
R156
22 23
24
25
0.01
C151
47u10
C150
+
L3 4.7uH
0.1
C506
4.7K
R150
0.1
C155
0.015
C153
0.22
C154
0.033
150P
C157
C156
7 5
6
0.22 0.22
1u50
C152
+
24 IF1 GND
IF2 GND
0.01
C200
W200
0.01
C201
22K
R203
22K
R201
1K
R202
1K
R200
R205
150
9
8
L9 4.7uH
63
10
C206 47u10
+
1
2
3
4
5
1
2
3
4
5
FWD/REV
GND
HEAD R
HEAD
COM
HEAD L
0.047
C251 10K
R251
1500P
C2
1500P
C1
22K
R1 22K
R2
12
11
10
9
8
7
6
5
4
3
2
1
PAN SW
L DATA S
L CLK
L CE
L DATA L
u GND
PAN5V
RESET
ILL GND
LAMP +B
ESD GND
R322 2.2K
R301 1K R303 1K R305 1K R304 1K
27K 47K
R320R321
R324
100u16
C57
+
R62
100u10
C58
+
1K
R64
1K
R63
R65
2.2 1/2W
R66
2.2 1/2W
4.7K 2.7K
R207 R206
3
4
25 23
36
32
34
35
37
38
5
4 6
3
67
62
40
C56
100u6.3
+
10u10
R58
22K
100
R59
C55
+
C54
0.01
100u16
+
39
3 7 5
9
44
GND
7
R160 47K
6
5
4
3
C164
0.01
2
1
9
8
11
10
12
13
VDD 14
+
0.022
3
C7
120K
R7
100u10100
+
100P
C5
C9
R5 6.8K
R3
L IN 8
L NF
L OUT
7 6
C3
47u6.3
4
10
R250
120K
R8
C250
100u10
R6 6.8K
+
C8
0.022
C10
100u10
R4
100
GND
VCC
R OUT
5
4
100P
C6
R NF
3 2
+
+
C4
47u6.3
R IN 1
16
7
24
22
C53
25
26
0-21
MODEL NAME
KRC-235
UNIT NO.
0-10 NO YES
R120
KRC-265
YES
YES
NO
R121
F1 (10A)
3.3K
R50
1/2W
61
R371
R373
1K
1K
R372
22K
40
∗W104
1
2 3
4
5 6 7 8
9
10
11
12 13
14
15 16 17 18
19
20
21
22 23
24
25
TAB GND RR- STBY RR+ VCC FR- GND FR+ SVR FRI RRI GND FLI RLI AC GND RL+ GND RL- VCC FL+ MUTE FL- GND CD
R159 100K
28 27 26 25 24 23 22 21 20 19 18 17 16 15
AC OUT L
AC OUT R
CREF
OUT LF
OUT RF
OUT LR
OUT RR
VDD
GND
SDA
SCL
S MUTE
MUX R
MUX L
1
2 3
4
5 6 7 8
9
10
11
12 13
14
AC IN L AC IN R TAPE R TAPE L CDR CDRG CDL CDLG PHONE AM MPX LEVEL MP IN MP OUT
54
64
C13
C14
L4
52mH
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
65 66 67 68
69
70
71
72 73
74
75 76 77 78
79
80
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
ANT CON
P CON
AMP MUTE
AMP STBY
SVR
REQ H
CH CON
MUTE
REQ C
VDD
GND GND
FF/REW
PACK IN
FM+B
AM+B
SCL
MOTOR
CH CLK
DATA H
DATA C
SD
PLL CLK
PLL DATA
SDA
L CE
L CLK
L DATA S
L DATA L
GND
XIN
GND GND HOLD VDD GND GND VDD GND GND VSS GND XOUT
SW5V
ILL
BEEP
ROLL OFF
NOISE CANCELLER
SEL1
SEL2
SEL3
EQ MUTE
FWD/REV
REMO
ACC DET
B.U. DET
S METER
PANEL
38 37 36
27 28
26 25
R154 750 C161 1u50
+
61
62
44
64
67
X1
4.5MHz
C103
22P
C102
22P
6
4
3
5
9
10
7
8
11
12
13
R116 4.7K
R119 2.2K
R118 2.2K
1K
10
R306
1K
15
2
R131 10K
R114 22K
16
R106 1K
47K
47K
R127
R126
C452
NO
YES
0-21
KRC-225 0-11
NO YES
NO
TDA7384A
IC4
TDA7386
TDA7384A
TDA7386 YES
KRC-265S YES YES
NO
YES
NO
YES
NO
YES
NO
NO YES
R122 R123
NO
YES
NO YES
NO
YES
NO
W104
YES
NO
YES
1
TH1
0.01
C101
47K
R125
R105
2.2M
R103
R138
22K
47K
R137
1K
R115
P1
47u6.3
C320
+
47
R323
1/2W
1/2W
T.MUTE
GND
MOT GND
MOT+B
GND
PACK IN
Lch
1
2
FWD
REV
Rch
Ref.99 6
3
4
5
Q350
Q351
Q151
Q153
IC3
Q320
10K
Q54,55
IC2
Q150
CAUTION: For continued safety,
replace safety critical components only
with manufacturer's recommended
parts (refer to parts list). indicates
safety critical components. For contin-
ued protection against risk of fire,
replace only with same type and rating
fuse(s). To reduce the risk of electric
shock, leakage-current or resistance
measurements shall be carried out
(exposed parts are acceptably insulat-
ed from the supply circuit) before the
appliance is returned to the customer.
Manufacture under license from Dolby
Laboratories.
"Dolby" and the double-D symbol are
trademarks of Dolby Laboratories.

PQSUWYRTVX
2
1
3
5
7
4
6
KRC-225/235/265/265S
12
11
10
9
8
7
6
5
4
3
2
1
PANEL SW
L DATA S
L CLK
L CE
L DATA L
N.C.
u-GND
PAN 5V
RST
ILL-GND
ILL+B
ESD-GND
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
24
23
22
21
20
19
18
17
31
30
29
28
27
26
25
1
2 3
4
5 6 7 8
9
10
11
12 13
14
15 16
50
51
52
53
54
56
57
58
59
60
61
62
63
64
KS5
KS4
KS3
KS2
KS1
COM3 COM2
COM1
S40
S39
S38
S37
S36 S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
KEY S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16
KI1
KI2
KI3
KI4
KI5
VDD
VDD2
VDD1
VSS
OSC
DATA L
CE
CLK
DATA S
KI1
KI2
KI4
KI3
C4 0.047
C5 1000P
C1 0.047
R19 56K
C2 0.01
R8 4.7
R18 1K
63
64
62
61
62
61
63
R11 100
R13 100
R14 100
R12 100
64
25
12 13
14
15 16
26
27
28
29
30
31
32
18
19
20
21
22
23
24
17
CO3 CO2
CO1
37 36 35
34
33
∗PL1∗PL2 13
13
R21
R6
470
470
R5
330
R4
R3
330
R1
470
R2
330
KS1
KS2
KS3
KS4
KS5
KI4
KI3 KI2
KI1
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
S16
S15
S14
S13
S12
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
COM1
COM2
COM3
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
12
13
14
15
16
R20
S2 S3
32
KS1
KS2 KS3
KS4
KS5
49
Q1
KS6
55 TEST
J1
Q1
2
1
CLK ATT
AM
6
5
VOL+
FMAUDIO
D17 : MA3062-M
D1-13,15
Q1 : DTA114EK or
UN2111 or
KRA102S
IC1 : LC75853NE
J3
X14-
1/2
AUTO VOL-
T.UP
43
T.DOWN
SRC
∗ED1 (COMMON)
RST
∗D1
∗D4
∗D6
∗D5
∗D8∗D7
∗D9 ∗D11
∗D12 ∗D13
∗D14 ∗D15
∗D10
∗D2 ∗D3
D17
:∗
:
∗
D14 :∗
ED1
KEY-MATRIX
PERMISSION
SW
LCD DRIVER
WITH
KEY-MATRIX
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
S16
S15
S14
S13
S12
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
COM1
COM2
COM3
CO3
CO2
CO1
∗ED1 (SEGMENT)
IC1
SWITCH UNIT (X16-1490-XX)
KRC-225/235/265/265S (2/2)
A
10K
10K
0-10
MODEL NAME
KRC-235
UNIT NO.
0-10 B38-1068-05
KRC-265
KRC-225
ED1
B38-1022-05
B38-1068-05
0-11
KRC-265S B38-1094-05
0-21
(X16-1490-XX)
B30-1565-05
D1-13,15
B30-1566-05
B30-1565-05
B30-2025-05
D14 PL1,2
B30-1511-05
B30-2025-05
B30-1485-05
B30-1483-05
B30-1485-05
B30-1565-05 B30-2025-05 B30-1513-05
0V
5V
5.0V
0V
0V
0V
3.3V
1.7V
5V
3.3V
0V
5V
0V
5V
1.7V
3.3V
5V
0V
0V
5V
0V
5V
5V
10.2V
5.0V
0V
+B
+B
+5V +5V +5V
+B B LINE
GND LINE
2SB1565 DTA114EK
DTA114YK
DTA124EK
DTA144EK
DTC114YK
DTC124EK
DTC143TK
DTC144EK
KRC103S
2SC2412K
2SB1548 2SB1277
2SB1443
2SA1037K KRA102S
KRC104S
LA3161 CAUTION: For continued safety, replace safety critical components
only with manufacturer's recommended parts (refer to parts list).
indicates safety critical components. For continued protection
against risk of fire, replace only with same type and rating fuse(s).
To reduce the risk of electric shock, leakage-current or resistance
measurements shall be carried out (exposed parts are acceptably
insulated from the supply circuit) before the appliance is returned to
the customer.

Parts with exploded numbers larger than 700 are not supplied.
31
54
4
99
101
115
53
111
102
102
12
103
111
31
33
14
102
114
52
39
10
40
34
58
57
39
9
35
112
113
7
626
25
HD1
56
100
106x2
37
36
38
CM1
20
5
1
23
22
105x2 113
112
16
18
17
19 102
104
1
2
3
AB
EXPLODED VIEW(MECHANISM)
KRC-225/235/265/265S
17

Parts with exploded numbers larger than 700 are not supplied.
DC2
M3x4
φ3x5
φ3x10
φ3x8
φ3x20
φ2.6x6
M3x8
: N30-3004-46
: N83-3005-46
: N35-3010-46
: N80-3008-46
: N83-3020-46
: N86-2606-46
: N30-3008-46
A
B
C
D
E
F
G
B
B
B
B
(X14-)
Ax2
Ax2
G
G
Refer to the
following page.
CME1
A1 F1
244
216
DC1 242
202
200
262
726
767
261 221x2
(X14-)
J1 (X14-)
(X14-)
J5
(X14-)
J4
(X14-)
778
(X14-)
776
(X14-)
777
(X14-)
Q60
(X14-)
Q56
(X14-)
779
(X14-)
IC4
(X14-)
J2
(X14-)
J3
(X14-)
L1
729
701
B
B
E
D
Cx2
Fx2
Depends on the modle.
Refer to the parts list.
1
2
3
CD
EXPLODED VIEW(UNIT)
KRC-225/235/265/265S
18

KRC-225/235/265/265S
19
Parts with exploded numbers larger than 700 are not supplied.
H
K
J
H
φ2x6
φ1.5
φ2x8 (BLK)
: N80-2006-46
: N29-0205-04
: N80-2008-45
H
J
K
Kx2
Kx2
204
233
223
224
234
222
705
766
(X16-)
(X16-)
(X16-)
272
(X16-)
273
(X16-)
274
(X16-)
ED1
(X16-)
271
775
CL1
235
PA1
252
253
255
232
232
232
254
231
258
710
251
241
227
206
256
260
257
260
259
1
2
3
EF
EXPLODED VIEW(UNIT)

KRC-225/235/265/265S
20
PARTS LIST
✽New Parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
Ref.No. Parts No. Ref.No. Parts No.
258 3E ✽K25-1388-03 KNOB (ATT,PRE,RST)
259 3E ✽K25-1390-03 KNOB (VOL)
200 1C A02-1486-13 PLASTIC CABINET ASSY 260 3E ✽K24-3819-04 KNOB (SEEK)
202 1D A52-0756-02 TOP PLATE
204 1F A22-2386-13 SUB PANEL ASSY 261 1C N99-1610-15 SCREW SET
206 2F ✽A46-1748-01 REAR COVER 262 1C ✽N99-1719-05 SCREW SET
CL1 1F A53-1638-13 CASSETTE LID A 3D N30-3004-46 PAN HEAD MACHINE SCREW
B 3D N83-3005-46 PAN HEAD TAPTITE SCREW
PA1 3E ✽A64-2505-02 PANEL ASSY K G 1D N30-3008-46 PAN HEAD MACHINE SCREW
PA1 3E ✽A64-2506-02 PANEL ASSY K1
PA1 3E ✽A64-2507-02 PANEL ASSY M1 H 3E N80-2006-46 PAN HEAD TAPTITE SCREW
PA1 3E ✽A64-2634-02 PANEL ASSY M5 J 1F N29-0205-04 RETAINING RING (1.5)
K 1F N80-2008-45 PAN HEAD TAPTITE SCREW
216 3C B07-2124-02 ESCUTCHEON KK1M1
216 3C ✽B07-3049-02 ESCUTCHEON M5
- B46-0100-50 WARRANTY CARD C1 ,2 CK73GB1H152K CHIP C 1500PF K
- B46-0606-04 ID CARD C3 ,4 CE04CW0J470M ELECTRO 47UF 6.3WV
- B58-1344-04 CAUTION CARD K C5 ,6 CC73GCH1H101J CHIP C 100PF J
C7 ,8 CK73GB1E223K CHIP C 0.022UF K
- B58-1365-04 CAUTION CARD C7 ,8 CK73GB1H223K CHIP C 0.022UF K
-✽B64-2101-00 INST. MANUAL (ENG,FRE,SPA,POR) KK1
-✽B64-2102-00 INST. MANUAL (ENG,T-CHI) M1M5 C9 ,10 CE04CW1A101M ELECTRO 100UF 10WV
-✽B64-2103-00 INST. MANUAL (ARABIC) M1M5 C13 ,14 CK73GB1A224K CHIP C 0.22UF K
-✽B64-2192-00 INST. MANUAL (S-CHI) M1 C15 -18 C90-5296-05 NP-ELECT 0.22UF 50WV
C50 C90-5242-05 ELECTRO 3300UF 16WV
221 1C D10-3031-04 LEVER C52 CK73GB1H103K CHIP C 0.010UF K
222 1F D10-4446-03 LEVER
223 1F D10-4447-03 LEVER C53 CE04CW1C101M ELECTRO 100UF 16WV
224 1F D21-2329-04 SHAFT C54 CK73GB1H103K CHIP C 0.010UF K
CME1 2C D40-1136-05 CASSETTE MECHANISM ASSY C55 C90-2594-05 ELECTRO 10UF 10WV
C56 CE04CW0J101M ELECTRO 100UF 6.3WV
227 3F ✽E29-1869-02 CONDUCTIVE RUBBER C57 CE04CW1C101M ELECTRO 100UF 16WV
DC1 1C E30-4783-05 DC CORD KK1
DC2 1C E30-4784-05 DC CORD M1M5 C58 CE04CW1A101M ELECTRO 100UF 10WV
C101 CK73GB1H103K CHIP C 0.010UF K
F1 2D F52-0006-05 FUSE(MINI BLADE TYPE) (10A) C102,103 CC73GCH1H220J CHIP C 22PF J
F1 2D F52-0011-05 FUSE(MINI BLADE TYPE) (10A) C150 CE04CW1A470M ELECTRO 47UF 10WV
C151 CK73GB1H103K CHIP C 0.010UF K
231 1F G01-2525-04 TORSION COIL SPRING
232 3F G01-2793-14 COMPRESSION SPRING C152 C90-2608-05 ELECTRO 1.0UF 50WV
233 1F G01-2987-04 TORSION COIL SPRING C153 CK73GB1H153K CHIP C 0.015UF K
234 1F G01-2988-04 EXTENSION SPRING C154 CK73GB1A224K CHIP C 0.22UF K
235 2F G01-2990-04 COMPRESSION SPRING C155 CK73GB1C104K CHIP C 0.10UF K
C156 CK73GB1E333K CHIP C 0.033UF K
- H10-4685-12 POLYSTYRENE FOAMED FIXTURE
- H25-0329-04 PROTECTION BAG (280X450X0.03) C156 CK73GB1H333K CHIP C 0.033UF K
- H25-0337-04 PROTECTION BAG (180X300X0.03) C157 CC73GCH1H151J CHIP C 150PF J
-✽H54-2227-03 ITEM CARTON CASE K C159 CE04CW1A101M ELECTRO 100UF 10WV
-✽H54-2228-03 ITEM CARTON CASE K1 C160 C90-2597-05 ELECTRO 10UF 16WV
C161 C90-2935-05 ELECTRO 1.0UF 50WV
-✽H54-2229-03 ITEM CARTON CASE M1
-✽H54-2313-03 ITEM CARTON CASE M5 C162 C90-2608-05 ELECTRO 1.0UF 50WV
C163,164 CK73GB1H103K CHIP C 0.010UF K
241 3E ✽J19-5125-02 HOLDER C200-202 CK73GB1H103K CHIP C 0.010UF K
242 1C J21-9491-13 MOUNTING HARDWARE ASSY C206 CE04DW1A470M ELECTRO 47UF 10WV
244 3D J61-0307-05 WIRE BAND C250 CE04CW1A101M ELECTRO 100UF 10WV
251 3E ✽K24-3817-03 KNOB (SRC) C251 CK73GB1E473K CHIP C 0.047UF K
252 2E ✽K24-3818-04 KNOB (RELEASE) C320 CE04CW0J470M ELECTRO 47UF 6.3WV
253 3F K24-3545-04 KNOB (EJECT) C321 CK73GB1H103K CHIP C 0.010UF K
254 3F K24-3546-04 KNOB (FF) C350 C90-2598-05 ELECTRO 3.3UF 25WV
255 3F K24-3547-04 KNOB (REW) C351 CK73GB1C683K CHIP C 0.068UF K
256 3E ✽K25-1387-03 KNOB (AUTO,CLK) C352 C90-2602-05 ELECTRO 0.10UF 50WV
257 3E ✽K25-1389-03 KNOB (FMAM,SEEK,AUD) C400 CE04CW0J220M ELECTRO 22UF 6.3WV KM1M5
K: KRC-235 K1: KRC-225 M1: KRC-265 M5: KRC-265S indicates safety critical components.
Description
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Description
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KRC-225/235/265/265S
SYNTHESIZER UNIT(X14-6850-XX)

✽New Parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
Ref.No. Parts No. Ref.No. Parts No.
C401,402 C90-2606-05 ELECTRO 0.47UF 50WV KM1M5 R123 RK73GB2A473J CHIP R 47K J 1/10W KK1
C450,451 C90-2597-05 ELECTRO 10UF 16WV R125 RK73GB2A473J CHIP R 47K J 1/10W
C452 CK73GB1H103K CHIP C 0.010UF K R126,127 RK73EB2E473J CHIP R 47K J 1/4W
C506 CK73GB1C104K CHIP C 0.10UF K R129 RK73GB2A223J CHIP R 22K J 1/10W
R131 RK73GB2A103J CHIP R 10K J 1/10W
CN1 E40-3240-05 PIN ASSY (5P)
J1 2D E04-0312-05 RF COAXIAL CABLE RECEPTACLE R132 RD14BB2C104J RD 100K J 1/6W
J2 2D E58-0863-15 RECTANGULAR RECEPTACLE (16P) R137 RK73GB2A473J CHIP R 47K J 1/10W
J3 2D E58-0888-05 RECTANGULAR RECEPTACLE (12P) R138 RD14BB2C223J RD 22K J 1/6W
J4 2D E56-0834-05 CYLINDRICAL RECEPTACLE (13P) KM1M5 R150,151 RK73GB2A472J CHIP R 4.7K J 1/10W
R152 RK73FB2B102J CHIP R 1.0K J 1/8W
J5 2D E63-0013-05 PIN JACK (2P)
WH1 E39-0344-05 WIRING HARNESS (6P) R153 RK73GB2A913J CHIP R 91K J 1/10W
R154 RK73GB2A751J CHIP R 750 J 1/10W
L1 2D L33-1063-15 CHOKE COIL (140UH) R155 RK73GB2A431J CHIP R 430 J 1/10W
L3 L40-4795-91 SMALL FIXED INDUCTOR(4.7UH,J) R156 RK73GB2A184J CHIP R 180K J 1/10W
L4 L33-1123-05 LINE FILTER COIL (52mH) R157 RK73EB2E101J CHIP R 100 J 1/4W
L8 ,9 L40-4795-91 SMALL FIXED INDUCTOR(4.7UH,J)
X1 L77-1163-05 CRYSTAL RESONATOR(4.5MHZ) R158 RK73GB2A333J CHIP R 33K J 1/10W
R159 RK73GB2A104J CHIP R 100K J 1/10W
X1 L77-1165-05 CRYSTAL RESONATOR(4.5MHZ) R160 RK73GB2A473J CHIP R 47K J 1/10W
R161 RK73GB2A103J CHIP R 10K J 1/10W
B 1D N83-3005-46 PAN HEAD TAPTITE SCREW R200 RK73EB2E102J CHIP R 1.0K J 1/4W
C 1D N35-3010-46 BINDING HEAD MACHINE SCREW
D 1D N80-3008-46 PAN HEAD TAPTITE SCREW R201 RK73EB2E223J CHIP R 22K J 1/4W
E 1D N83-3020-46 PAN HEAD TAPTITE SCREW R202 RD14BB2C102J RD 1.0K J 1/6W
F 2D N86-2606-46 BINDING HEAD TAPTITE SCREW R203 RK73EB2E223J CHIP R 22K J 1/4W
R205 RK73EB2E151J CHIP R 150 J 1/4W
R1 ,2 RK73GB2A223J CHIP R 22K J 1/10W R206 RK73GB2A472J CHIP R 4.7K J 1/10W
R3 ,4 RK73GB2A101J CHIP R 100 J 1/10W
R5 ,6 RK73GB2A682J CHIP R 6.8K J 1/10W R207 RK73GB2A272J CHIP R 2.7K J 1/10W
R7 ,8 RK73GB2A124J CHIP R 120K J 1/10W R250 RK73FB2B100J CHIP R 10 J 1/8W
R13 RK73EB2E472J CHIP R 4.7K J 1/4W R251 RK73GB2A103J CHIP R 10K J 1/10W
R260 RD14DB2H102J SMALL-RD 1.0K J 1/2W
R14 ,15 RK73GB2A472J CHIP R 4.7K J 1/10W R261 RD14BB2C103J RD 10K J 1/6W
R16 RK73EB2E472J CHIP R 4.7K J 1/4W
R50 RD14DB2H332J SMALL-RD 3.3K J 1/2W R301 RK73EB2E102J CHIP R 1.0K J 1/4W
R52 RK73FB2B333J CHIP R 33K J 1/8W R303-306 RK73EB2E102J CHIP R 1.0K J 1/4W
R54 RK73FB2B103J CHIP R 10K J 1/8W R320 RK73GB2A473J CHIP R 47K J 1/10W
R321 RK73EB2E273J CHIP R 27K J 1/4W
R55 RD14BB2C473J RD 47K J 1/6W R322 RK73EB2E222J CHIP R 2.2K J 1/4W
R57 RK73GB2A433J CHIP R 43K J 1/10W
R58 RK73FB2B223J CHIP R 22K J 1/8W R323 RK73EB2E470J CHIP R 47 J 1/4W
R59 RK73GB2A101J CHIP R 100 J 1/10W R324 RK73EB2E100J CHIP R 10 J 1/4W
R62 RK73GB2A103J CHIP R 10K J 1/10W R350 RD14BB2C472J RD 4.7K J 1/6W KK1
R351 RD14DB2H102J SMALL-RD 1.0K J 1/2W
R63 ,64 RK73GB2A102J CHIP R 1.0K J 1/10W R352 RK73FB2B223J CHIP R 22K J 1/8W
R65 ,66 RD14DB2H2R2J SMALL-RD 2.2 J 1/2W
R67 RD14BB2C102J RD 1.0K J 1/6W R353 RD14DB2H102J SMALL-RD 1.0K J 1/2W
R102 RK73FB2B222J CHIP R 2.2K J 1/8W KK1 R370 RD14BB2C472J RD 4.7K J 1/6W M1M5
R103 RK73GB2A225J CHIP R 2.2M J 1/10W R371 RD14DB2H102J SMALL-RD 1.0K J 1/2W M1M5
R372 RK73FB2B223J CHIP R 22K J 1/8W M1M5
R104 RK73FB2B104J CHIP R 100K J 1/8W KK1 R373 RD14DB2H102J SMALL-RD 1.0K J 1/2W M1M5
R105,106 RK73GB2A102J CHIP R 1.0K J 1/10W
R108 RK73GB2A473J CHIP R 47K J 1/10W R400 RK73EB2E4R7J CHIP R 4.7 J 1/4W KM1M5
R110 RK73GB2A473J CHIP R 47K J 1/10W R401,402 RK73EB2E100J CHIP R 10 J 1/4W KM1M5
R114 RK73EB2E223J CHIP R 22K J 1/4W R403 RK73EB2E101J CHIP R 100 J 1/4W KM1M5
R404 RK73GB2A104J CHIP R 100K J 1/10W KM1M5
R115 RK73GB2A102J CHIP R 1.0K J 1/10W R405 RK73EB2E104J CHIP R 100K J 1/4W KM1M5
R116 RD14BB2C472J RD 4.7K J 1/6W
R118,119 RK73GB2A222J CHIP R 2.2K J 1/10W R406,407 RK73EB2E472J CHIP R 4.7K J 1/4W KM1M5
R120 RK73GB2A473J CHIP R 47K J 1/10W K1 R408 RK73EB2E102J CHIP R 1.0K J 1/4W KM1M5
R121 RK73GB2A473J CHIP R 47K J 1/10W K R409,410 RK73EB2E472J CHIP R 4.7K J 1/4W KM1M5
R411,412 RK73EB2E101J CHIP R 100 J 1/4W KM1M5
R121,122 RK73GB2A473J CHIP R 47K J 1/10W M1M5 R413 RK73GB2A104J CHIP R 100K J 1/10W KM1M5
K: KRC-235 K1: KRC-225 M1: KRC-265 M5: KRC-265S indicates safety critical components.
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Description
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SYNTHESIZER UNIT(X14-6850-xx)
KRC-225/235/265/265S
21
PARTS LIST

✽New Parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
Ref.No. Parts No. Ref.No. Parts No.
R450,451 RK73FB2B271J CHIP R 270 J 1/8W Q50 2SD601A TRANSISTOR
R452,453 RK73FB2B303J CHIP R 30K J 1/8W Q51 2SB1443 TRANSISTOR
R454,455 RK73EB2E101J CHIP R 100 J 1/4W Q52 2SC2412K TRANSISTOR
W111-114 R92-2053-05 CHIP R 0 J 1/8W K1 Q52 2SD601A TRANSISTOR
W111-115 R92-2053-05 CHIP R 0 J 1/8W KM1M5 Q53 DTA114YK DIGITAL TRANSISTOR
W116 R92-2052-05 CHIP R 0 OHM J 1/10W Q53 KRA107S DIGITAL TRANSISTOR
W117 R92-2053-05 CHIP R 0 J 1/8W Q53 UN2114 DIGITAL TRANSISTOR
W118 R92-2052-05 CHIP R 0 OHM J 1/10W M1M5 Q54 DTC144EK DIGITAL TRANSISTOR
W119 R92-2053-05 CHIP R 0 J 1/8W Q54 KRC104S DIGITAL TRANSISTOR
W120,121 R92-2052-05 CHIP R 0 OHM J 1/10W Q54 UN2213 DIGITAL TRANSISTOR
W122 R92-2053-05 CHIP R 0 J 1/8W Q55 DTA124EK DIGITAL TRANSISTOR
W123 R92-2052-05 CHIP R 0 OHM J 1/10W K1 Q55 KRA103S DIGITAL TRANSISTOR
W123-125 R92-2052-05 CHIP R 0 OHM J 1/10W KM1M5 Q55 UN2112 DIGITAL TRANSISTOR
W127-133 R92-2053-05 CHIP R 0 J 1/8W Q56 2D 2SA2057 TRANSISTOR
W134 R92-2052-05 CHIP R 0 OHM J 1/10W Q56 2D 2SB1548(P) TRANSISTOR
W135 R92-2053-05 CHIP R 0 J 1/8W Q56 2D 2SB1565(E,F) TRANSISTOR
Q56 2D 2SB1655(E,F) TRANSISTOR
D50 S2V20✽A DIODE Q57 2SC2412K TRANSISTOR
D50 ✽1N5393G-M6 DIODE Q57 2SD601A TRANSISTOR
D51 HZS7A3L ZENER DIODE Q58 DTC144EK DIGITAL TRANSISTOR
D51 MA4068(N)-M ZENER DIODE
D52 MA4051-L ZENER DIODE Q58 KRC104S DIGITAL TRANSISTOR
Q58 UN2213 DIGITAL TRANSISTOR
D53 AM01Z DIODE Q59 DTA124EK DIGITAL TRANSISTOR
D53 DSM1SD2 DIODE Q59 KRA103S DIGITAL TRANSISTOR
D53 ERA15-01 DIODE Q59 UN2112 DIGITAL TRANSISTOR
D54 MA4056(N)-M ZENER DIODE
D55 MA4091(N)-L ZENER DIODE Q60 2D 2SA2057 TRANSISTOR
Q60 2D 2SB1548(P) TRANSISTOR
D56 MA4110-L ZENER DIODE Q60 2D 2SB1565(E,F) TRANSISTOR
D100 1SS133 DIODE Q60 2D 2SB1655(E,F) TRANSISTOR
D150-152 1SS133 DIODE Q61 2SC2412K TRANSISTOR
D200 MA4051(N)-M ZENER DIODE
D260,261 AM01Z DIODE Q61 2SD601A TRANSISTOR
Q150 DTC124EK DIGITAL TRANSISTOR
D260,261 DSM1SD2 DIODE Q150 KRC103S DIGITAL TRANSISTOR
D260,261 ERA15-01 DIODE Q150 UN2212 DIGITAL TRANSISTOR
D350,351 AM01Z DIODE KK1 Q151 DTC114YK DIGITAL TRANSISTOR
D350,351 DSM1SD2 DIODE KK1
D350,351 ERA15-01 DIODE KK1 Q151 KRC107S DIGITAL TRANSISTOR
Q151 UN2214 DIGITAL TRANSISTOR
D352 1SS133 DIODE Q153 DTA124EK DIGITAL TRANSISTOR
D370,371 AM01Z DIODE M1M5 Q153 KRA103S DIGITAL TRANSISTOR
D370,371 DSM1SD2 DIODE M1M5 Q153 UN2112 DIGITAL TRANSISTOR
D370,371 ERA15-01 DIODE M1M5
D400,401 MA4062-L ZENER DIODE KM1M5 Q200 DTC124EK DIGITAL TRANSISTOR
Q200 KRC103S DIGITAL TRANSISTOR
D404 MA4062-L ZENER DIODE KM1M5 Q200 UN2212 DIGITAL TRANSISTOR
D405 HZS7A3L ZENER DIODE KM1M5 Q201 2SB1277(Q,R) TRANSISTOR
D405 MA4068(N)-M ZENER DIODE KM1M5 Q202 DTC124EK DIGITAL TRANSISTOR
D408,409 MA4062-L ZENER DIODE KM1M5
D411 HZS7A3L ZENER DIODE KM1M5 Q202 KRC103S DIGITAL TRANSISTOR
Q202 UN2212 DIGITAL TRANSISTOR
D411 MA4068(N)-M ZENER DIODE KM1M5 Q203 2SB1277(Q,R) TRANSISTOR
IC1 LC72366-9592 MI-COM IC Q260 DTC114YK DIGITAL TRANSISTOR
IC2 TDA7461ND ANALOGUE IC Q260 KRC107S DIGITAL TRANSISTOR
IC3 HD74HC27FP MOS-IC
IC4 1D TDA7384A ANALOGUE IC KK1 Q260 UN2214 DIGITAL TRANSISTOR
Q261 2SB1443 TRANSISTOR
IC4 1D TDA7386 ANALOGUE IC M1M5 Q301 DTA144EK DIGITAL TRANSISTOR
IC5 LA3161 IC(PREAMP X2) Q301 UN2113 DIGITAL TRANSISTOR
Q50 2SC2412K TRANSISTOR Q320 2SA1037K TRANSISTOR
K: KRC-235 K1: KRC-225 M1: KRC-265 M5: KRC-265S indicates safety critical components.
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SYNTHESIZER UNIT(X14-6850-xx)
KRC-225/235/265/265S
22
PARTS LIST

KRC-225/235/265/265S
23
PARTS LIST
✽New Parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
Ref.No. Parts No. Ref.No. Parts No.
Q350 2SB1277(Q,R) TRANSISTOR Q1 UN2111 DIGITAL TRANSISTOR
Q351 2SA1037K TRANSISTOR
Q352 DTA124EK DIGITAL TRANSISTOR
Q352 KRA103S DIGITAL TRANSISTOR 1 2A A10-4328-08 CHASISS CALKING ASSY
Q352 UN2112 DIGITAL TRANSISTOR 4 3B J26-4017-08 PRINTED WIRING BOARD ASSY
5 2A J21-7778-08 MOUNTING HARDWARE
Q353 DTC114YK DIGITAL TRANSISTOR 6 2B D10-4091-08 SLIDER
Q353 KRC107S DIGITAL TRANSISTOR 7 2B D13-1323-08 GEAR
Q353 UN2214 DIGITAL TRANSISTOR
Q370 2SB1277(Q,R) TRANSISTOR M1M5 9 2B D10-4200-08 ARM ASSY (F)
Q371 DTC114YK DIGITAL TRANSISTOR M1M5 10 2A D10-4201-08 ARM ASSY (R)
12 3A A11-0930-08
SUB CHASSIS CALKING ASSY
Q371 KRC107S DIGITAL TRANSISTOR M1M5 14 3A J26-4018-08 PRINTED WIRING BOARD ASSY
Q371 UN2214 DIGITAL TRANSISTOR M1M5 16 1B G01-2826-08 TORSION COIL SPRING
Q450,451 DTC143TK DIGITAL TRANSISTOR
Q450,451 UN2216 DIGITAL TRANSISTOR 17 1A D10-4094-08 SLIDER
TH1 PTH9C42BD471Q POSITIVE RESISTOR 18 1B D10-4095-08 SLIDER
19 1A D10-4096-08 ARM
A1 2D X86-3320-11 TUNER UNIT 20 1A J19-4736-08 HOLDER ASSY
22 2A G01-2827-08 TENSION COIL SPRING
271 2E ✽B11-1376-04 OPTICAL DIFFUSER 23 2A D10-4097-08 LEVER
272 2E B11-0992-04 REFLECTION SHEET 25 2B D10-4098-08 SLIDER
273 2E B19-2019-03 LIGHTING BOARD 26 2B G09-2019-08 SPRING
D1 -13 B30-1565-05 LED(1608,PG) KK1M1 31 3A D01-0608-08 FLYWHEEL ASSY
D1 -13 B30-1566-05 LED(1608,RED) M5 33 3A G01-2828-08 TENSION COIL SPRING
D14 B30-1511-05 LED(RED) M5 34 2B G01-2829-08 TENSION COIL SPRING
D14 B30-2025-05 LED KK1M1 35 2B D10-4099-08 ARM
D15 B30-1565-05 LED(1608,PG) KK1M1 36 1A D10-4100-08 ARM
D15 B30-1566-05 LED(1608,RED) M5 37 1A D14-0682-08 ROLLER
ED1 2E B38-1022-05 LIQUID CRYSTAL K1 38 1A D10-4101-08 LEVER
ED1 2E B38-1068-05 LIQUID CRYSTAL KM1 39 2A G01-2830-08 COMPRESSION COIL SPRING
ED1 2E B38-1094-05 LIQUID CRYSTAL M5 40 2A D10-4102-08 ARM
PL1 ,2 B30-1483-05 LAMP (5.5V 0.125A) M5 52 2A D13-1110-08 GEAR
PL1 ,2 B30-1485-05 LAMP (5.5V 0.125A) KM1 53 2B D15-0909-08 PULLEY
PL1 ,2 B30-1513-05 LAMP (5.5V 0.125A) K1 54 3B D16-0606-08 BELT
C1 CK73GB1E473K CHIP C
0.047U
F
K 56 1B D10-4105-08 ARM ASSY
C1 CK73GB1H473K CHIP C
0.047U
F
K 57 2B D10-4104-08 ARM
C2 CK73GB1H103K CHIP C
0.010U
F
K 58 2B G01-2831-08 TENSION COIL SPRING
C4 CK73GB1E473K CHIP C
0.047U
F
K 99 3B E39-0181-08 WIRE HARNESS
C4 CK73GB1H473K CHIP C
0.047U
F
K 100 1B J11-0618-08 CLAMPER
C5 CK73GB1H102K CHIP C 1000PF K 101 3B N09-4328-08 SCREW (S2X5)
102 3A N09-4326-08 SCREW (S2X3)
274 2E E29-1600-04 CONDUCTIVE RUBBER 103 3A N09-4191-08 SCREW (3.2X2)
J1 E59-0831-05 RECTANGULAR PLUG (12P) 104 1B N09-4192-08 SCREW (2.6X4.5)
105 2A N09-4058-08 SCREW (2X3)
R1 RK73EB2E331J CHIP R 330 J 1/4W
R2 RK73EB2E471J CHIP R 470 J 1/4W 106 1A N09-4109-08 SCREW
R3 ,4 RK73EB2E331J CHIP R 330 J 1/4W 111 3A N19-2082-08 FLAT WASHER (1.55X3)
R5 ,6 RK73EB2E471J CHIP R 470 J 1/4W 112 2A N19-2083-08 FLAT WASHER (1.25X3)
R8 RK73GB2A4R7J CHIP R 4.7 J 1/10W 113 2A N19-2084-08 FLAT WASHER (1.55X3)
114 3A N19-2043-08 FLAT WASHER (1.2X3)
R11 -14 RK73GB2A101J CHIP R 100 J 1/10W
R18 RK73GB2A102J CHIP R 1.0K J 1/10W 115 2B N19-2038-08 FLAT WASHER (0.85X2)
R19 RK73GB2A563J CHIP R 56K J 1/10W CM1 1A T42-1025-08 MOTOR ASSY
R20 ,21 RK73EB2E130J CHIP R 13 J 1/4W HD1 1B T31-0229-08 PLAYBACK HEAD
D17 MA3062-M ZENER DIODE
IC1 LC75853NE MOS-IC
Q1 DTA114EK DIGITAL TRANSISTOR
Q1 KRA102S DIGITAL TRANSISTOR
K: KRC-235 K1: KRC-225 M1: KRC-265 M5: KRC-265S indicates safety critical components.
A
d
d
N
e
w
Description
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d
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Description
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SWITCH UNIT(X16-1490-XX)
CASSETTE MECHANISM ASSY(D40-1136-05)
SYNTHESIZER UNIT(X14-6850-xx)