COPYRIGHT © 2006 Victor Company of Japan, Limited. No. .... the Parts List in
the Service Manual. ... the Parts List of Service Manual may create shock, fire, or.
SERVICE MANUAL CD PORTABLE SYSTEM SERVICE MANUAL 12 2006 MB593
RC-EZ35SB,RC-EZ35SE, RC-EZ35SEN,RC-EZ35SEV, RC-EZ31BB,RC-EZ31BE, RC-EZ31BEN,RC-EZ31BEV SERVICE POLICY No service part is available for this model. Exchange only.
COPYRIGHT © 2006 Victor Company of Japan, Limited Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
TABLE OF CONTENTS 1 2 3 4 5
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
COPYRIGHT © 2006 Victor Company of Japan, Limited
No.MB593 2006/12
SPECIFICATION RC-EZ35 Compact disc player section
Radio section
Cassette deck section
General
Type
Compact disc player
Signal detection
Non-contact optical pick-up (semicondicator lazer)
Number of channels
2 channels
Frequency ranges
FM 87.5 MHz - 108.0 MHz AM 522 kHz - 1 629 kHz
Antennas
Telescopic antenna for FM Ferrite core antenna for AM
Track
4-track 2-channel stereo
Motor
Electronic governor DC motor for capstan
Heads
Hard permalloy head for recording/playback, magnetic head for erase
Fast wind time
Approx. 120 sec. (C-60 cassette)
Speaker
10 cm × 2 (4 Ω, 3 W)
Power output
4 W (2 W + 2 W) at 4 Ω (10% THD) (IEC268-3)
Output terminals
PHONES × 1 (Ø 3.5 mm, stereo)
Power supply
AC 230 V , 50 Hz DC 12 V ("R20/D (13F)" cells × 8)
Power consumption
17 W (at operation) 1.5 W (at standby)
Dimentions
435 mm (W) × 156 mm (H) × 241 mm (D)
Mass
Approx. 2.8 kg (without batteries)
Type
Compact disc player
RC-EZ31 Compact disc player section
Radio section
Cassette deck section
General
Signal detection
Non-contact optical pick-up (semicondicator lazer)
Number of channels
2 channels
Frequency ranges
FM 88 MHz - 108.0 MHz AM 530 kHz - 1 600 kHz
Antennas
Telescopic antenna for FM Ferrite core antenna for AM
Track
4-track 2-channel stereo
Motor
Electronic governor DC motor for capstan
Heads
Hard permalloy head for recording/playback, magnetic head for erase
Fast wind time
Approx. 120 sec. (C-60 cassette)
Speaker
10 cm × 2 (4 Ω, 3 W)
Power output
4 W (2 W + 2 W) at 4 Ω (10% THD) (IEC268-3)
Output terminals
PHONES × 1 (Ø 3.5 mm, stereo)
Power supply
AC 230 V , 50 Hz DC 12 V ("R20/D (13F)" cells × 8)
Power consumption
13 W (at operation) 1.5 W (at standby)
Dimentions
435 mm (W) × 156 mm (H) × 241 mm (D)
Mass
Approx. 2.8 kg (without batteries)
Design and specifications are subject to change without notice.
1-2 (No.MB593)
SECTION 1 PRECAUTION 1.1
Safety Precautions
(1) This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.
voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).
(2) Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom. (3) Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards. (4) The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after reassembling. (5) Leakage shock hazard testing After reassembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check. • Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.). • Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000Ω per volt or more sensitivity in the following manner. Connect a 1,500Ω 10W resistor paralleled by a 0.15µF AC-type capacitor between an exposed metal part and a known good earth ground. Measure the AC voltage across the resistor with the AC
AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity)
0.15 F AC TYPE
1500
10W
Place this probe on each exposed metal part.
Good earth ground
1.2
Warning
(1) This equipment has been designed and manufactured to meet international safety standards. (2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained. (3) Repairs must be made in accordance with the relevant safety standards. (4) It is essential that safety critical components are replaced by approved parts. (5) If mains voltage selector is provided, check setting for local voltage.
1.3
Caution
Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.
1.4
Critical parts for safety
In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (This regulation dose not Except the J and C version)
(No.MB593)1-3
1.5
Important for laser products 1.CLASS 1 LASER PRODUCT 2.CAUTION : (For U.S.A.) Visible and/or invisible class II laser radiation when open. Do not stare into beam. (Others) Visible and/or invisible class 1M laser radiation when open. Do not view directly with optical instruments. 3.CAUTION : Visible and/or invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam. 4.CAUTION : This laser product uses visible and/or invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the safety interlocks have failed or are defeated. It is dangerous to defeat the safety switches.
5.CAUTION : If safety switches malfunction, the laser is able to function. 6.CAUTION : Use of controls, adjustments or performance of procedures other than those specified here in may result in hazardous radiation exposure.
!
Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.
REPRODUCTION AND POSITION OF LABELS and PRINT WARNING LABEL and PRINT
1-4 (No.MB593)
SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
(No.MB593)1-5
SECTION 3 DISASSEMBLY 3.1
Main body
3.1.1 Removing the Rear cabinet assembly (See Fig.1 to 4) (1) Remove the four screws A and five screws B attaching the Rear cabinet assembly. (See Fig.1) (2) Disconnect the Rod antenna wire from post pin of the Tuner board assembly. (See Fig.2) (3) Disconnect the connector wire from Amplifier board assembly connected to connector CN101 of the Power transformer board assembly. (See Fig.3) (4) Disconnect the connector wire from Capstan motor connected to connector CN102 of the Power transformer board assembly. (See Fig.3) (5) Remove the solder the grand wire from Tuner board soldered to shield plate. (See Fig.4)
B
CN102
CN101
A B
Power transformer board Fig.3
B Fig.1
Rod antenna wire
Ground wire
Shield plate Fig.4
Tuner board assembly Fig.2
1-6 (No.MB593)
Post pin
3.1.2 Removing the Top cabinet assembly (See Fig.5, 6) (1) Disconnect the connector wire from Cassette mechanism assembly connected to connector CN205 of the Amplifier board assembly. (See Fig.5) (2) Disconnect the connector wire from speaker connected to connector CN301 of the Amplifier board assembly. (See Fig.5) (3) Remove the solder the grand wire from Cassette mechanism assembly soldered to Amplifier board assembly. (See Fig.5) (4) Remove the three screws C attaching the Top cabinet assembly. (See Fig.6)
CN205 CN301
Ground wire Fig.5
C
C
C Fig.6 3.1.3 Removing the Cassette mechanism assembly (See Fig.7) (1) Remove the four screws D attaching the Cassette mechanism assembly.
D
D
D Fig.7 (No.MB593)1-7
3.1.4 Removing the Amplifier board assembly (See Fig.8, 9) (1) Disconnect the card wire from LCD board assembly connected to connector CN701 of the Amplifier board assembly. (See Fig.8) (2) Disconnect the connector wire from Amplifier board assembly connected to connector CN901 of the CD servo board assembly. (See Fig.8) (3) Disconnect the connector wire from CD door switch connected to connector CN906 of the Amplifier board assembly. (See Fig.8) (4) Disconnect the connector wire from Amplifier board assembly connected to connector CN101 of the Tuner board assembly. (See Fig.9) (5) Disconnect the connector wire from Amplifier board assembly connected to connector CN801 of the Headphone jack board assembly. (See Fig.9) (6) Remove the three screws E attaching the Amplifier board assembly. (See Fig.8)
CN701
CN906
E
CD servo board assembly
CN901 Fig.8
CN801
Fig.9
1-8 (No.MB593)
Amplifier board assembly
E
3.1.5 Removing the Headphone jack board assembly (See Fig.10) (1) Remove the solder the grand wire from LCD board assembly soldered to Headphone jack board assembly.) (2) Remove the one screw F attaching the Headphone jack board assembly.) (3) Disconnect the connector wire from Function board assembly connected to connector CN707 of the Headphone board assembly.
F
Solder point
CN707
Ground wire Fig.10 3.1.6 Removing the Tuner board assembly (See Fig.11) (1) Remove the solder of the grand wire from Function board assembly soldered to Tuner board assembly. (2) Disconnect the connector wire from Function board assembly connected to connector CN102 of the Tuner board assembly. (3) Remove the tree screws G attaching the Tuner board assembly.
G
G Solder point CN102
Fig.11
(No.MB593)1-9
3.1.7 Removing the Function board assembly (See Fig.12) (1) Disconnect the card wire from LCD board assembly connected to connector CN103 of the Function board assembly. (2) Remove the four screws H attaching the Function board assembly.
H
H
H
CN103
H
Fig.12 3.1.8 Removing the Power switch board assembly (See Fig.13) (1) Disconnect the connector wire from LCD board assembly connected to connector CN709 of the Power switch board assembly. (2) Remove the three screws J attaching the Power switch board assembly.
J
J
CN709 Fig.13
1-10 (No.MB593)
3.1.9 Removing the LCD board assembly (See Fig.14) (1) Remove the two screws K attaching the LCD board assembly.
K
K Fig.14
3.1.10 Removing the CD mechanism assembly (See Fig.15) (1) Removing the four screws L attaching the CD mechanism assembly.
L
L
L
L Fig.15
SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT.
(No.MB593)1-11
< MEMO >
SECTION 5 TROUBLESHOOTING 5.1 BLOCK DIAGRAM 5.1.1 Block diagram for RC-EZ35 FM ANT.
FM RF
BPF
FM OSC
IC501
IC101 FM F/E, IF/DET/MPX
AM ANT.
AM RF/IF/DET
IC102
FUNCTION SELECT
PLL
EQ/BASS/VOL CONTROL
PLAY OUT IC201
REC IN
R/P AMP R/P HEAD +8V
AM OSC
BIAS OSC
+8V
TA SW.
TU SW.
+ M TAPE MOTOR
RESET CD DOOR SW.
DECK SW
L SPEAKER BOX LCD
DISC
IC301
PICKUP
IC701
IC901 RF + D-SERVO + MP3 DECODER+1M DRAM
POWER AMP. KEY
MCU
R.C. P-CON + M SPINDLE MOTOR + M SLED MOTOR
R SPEAKER BOX +5V
IC902 SERVO DRIVER
Q411
Q902
+8V Q401 D2061
RECTIFIER
POWER SW. AC IN
+8V CD SW.
2-13
5.1.2 Block diagram for RC-EZ31 R/P HEAD FM ANT.
FM RF
FM OSC.
IC201 IC101 FM F/E, IF/DET/MPX
BPF
AM RF/IF/DET.
AM ANT TU-5V REG.
AM OSC
L SPEAKER
IC501
IC301 POWER AMP.
VOL SIGNAL SELECT SW.
R SPEAKER DISC
M+ LCD IC901
IC902
DSP
M-
PICKUP
RECTIFIER KEY
SPINDLE MOTOR
TA SW.
M IC903 MOTOR/ACTUATOR DRIVER
SLED MOTOR
CASS MOTOR
M
CD SW.
Q902
CD DOOR LEAF SW
2-14
Q401
DC SUP SW
TRANSFORMER
TU SW.
MCU
AC INPUT
5.2 STANDARD SCHEMATIC DIAGRAMS for RC-EZ35
C405 + 330U
Q408 9014 R414 470
R315 47K
R416 5.6 1 / 4W
R313
120
R307
102
4 3 2 1
Q402 9014
R402
R505 100
R424 SHORT
+ R317 4.7K
R516 22K
MOTOR CASSETTE DECK
Q501 9014
+
D403 C528 22U
R422 2.2K
Q413 9014
IN4148
R401 3 2 1
3 2 1
330 1 / 4W
Q401 D2061
IN4148
R506 3.9K
C410 220U / 25V
CW1102
D401
C519 100U
CN1102
+
R513 4. 7K
CN206
DC+
+ C404 220U / 16V
9014
1
D1104 IN4001
22K R305 18K
C526 500P
B+
D1103 IN4001 403
C510 + 22U
4 3 2 1
FX1101 2A 125V
AC-IN1 D1101 IN4001
C509 4.7U
R504 15K
C513 272M
C511 0.1M
C527 + 1U
6 5
C1103
C530
6 5
C401 223
4. 7K
1
3
14
+
+
CL
30
403
29
C1101
28
M
R518
2
JK301
CN1101
VREF
NC
27
D1102 IN4001
26
C1104 403
25
C1102 403
24
LOUT
LESL0
LIN
23 C514 1U
Q50 2
3
12
11
10
13
9
8
4
L302 15UH
100U
C409
R502 15K
DI
CE
VSS
TEST
RBASS2 LBASS2
+ C501 4.7U
C502 0.1M
0.1M
C503 RBASS1
RTRE
ROUT
C504 1U
C505
RIN
C315 470U / 25V
C403 470U / 16V + ZD401 8V2
GND
TO CN801
22
CN401
-
R512 1.2K
R515 1.2K
L303 15UH
R311 100
Q303 9014
HEADPHONES JACK
+
Q414 9014
R426 1K
R514 3.3K
Q503 9014
+
L301 15UH
R501 15K
R428 68K
4
D301 IN4148
R301 8.2K
+ C412 47U
C517 1U
GND
5
102
1
2
Q304 8550
+
3.3K
6
21
3
R312 10K
Q405 A928A
C531
4
5
R314 10K
R310 100
C532
+ + C515 1U
8 7
RSEL0
R4
20
19
6
C512 0.1M
C516 1U
L4
L2
18 +
7
8
IN4148
2.2
LC75342
68K
R517 15K
R519
17
C518 100P
C529 100P
16
L3
R522 2.7K
R511
TO P / R BOARD CN202
NC
R521 2.7K
CN205
9
+
9
10
11
IC501
C534 OPEN
10
12
1K
102
LTRE
R523 15K
13 R2
NC
R520 15K
3 4 5
+
14
R3
15
D406
R304 18K
272M
C521 1U +
C506 + 1U
R1
OPEN
R503 3.9K
+
L1
CN905
R507 15K
TO CD BOARD CN901
C508 1U
C533
C520 500P
LBASS1
R508 68K
R427
VDD
C525 153M
SHORT
C507 1U
1 2
Q415 9014
R425
R510 4.7K
C523 153M
D404 IN4148
R308
C407 + 1000U / 25V
D302 IN4148
Q407 8550
D405 IN4148
C316 + 470U / 25V C309 0.1M
R316 4.7K
4
R509 4.7K
TO TUNER BOARD CN101
Q409 8550
3 2 1
3 2 1
C311 1000U +
C308 100U
C314 + + 1U C303 100U
470 CN105
4
3 2 1
R SPEAKER
C1105 6800U / 25V +
R412
Q302 1936
33K
Q406 9014
9014 Q410
R303 1K
4
IC301 UTC8227
C408 100U
120
R417 3.3K
R415 10K
R413 10K
R411 10K
+
5
R407 47K
C307 100U
C301 3.3U
+
CW301
CN301 + C312 1000U
+
7
1K
Q411 8050
C306 100U +
6
R404 10K
R408 10K
R302
+
R306
+ C402 22U
10K
C304 102
R405
C305 102
Q403 8050
Q301 1936
ZD402 6V2
TO MCU BOARD CN701
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R406 470 1 / 4W
Q404 9014
22
D402 IN4148
R419 150
C313 + 1U
R409
R410 330
R421 10K
CN710
+
C406 47U
ZD404 5V6
Q412 9014
L SPEAKER
R309 2.2
C310 0.1M C302 100U
2
CN906
ZD403 3V
TO CD DOOR LEAF SW.
5.2.1 Primary and Amplifier section
AC-IN2 POWER / TRANSFORMER
ACINPUT
BT -
BATT
R403 10K + C411 10UF
R420 5.6K
R423 10K
R418 10K
SW801- A CN801
TO AUDIO BOARD CN206 1 TO CONTROL BOARD CN707 2 CN711
R805 10
SW719 Rese t
2-15
5.2.2 Front section
TRACK
MP3
FOLDER
ALL
REPEAT
PROGRAM
RANDOM
INTRO SLEEP kHz MHz
LCD701
WMA
S17
S16
43
42
41
69
P_ TU( 0 ,Nch)
S9
70
P_ CD( 0 ,Nch)
S8
71
IF_ IN(0 ,Nch)
S7
LC877C64C-57K1
S5
74
CD_ RST( 0 ,Nch)
S4
75
CD_ CE( 0 ,Nch) TUEV_ CE( 0 ,Nch) CD_ CMD(0 ,CM) CD_ DATA ( I,-) CD_ CLK IF_ CLK( 0 ,CM) / TX
S3 S2
19
S11 S10
32
S9
SW713 FM MODE
SW716 TUNER
SW717 TAPE
SW718 PROGR /CLK
29
28 S28 27 S27 26 S26 25 S25 24 S24 23 S23 22 S22 21 S21 20 S20 19 S19 18 S18 17 S17 16 S16 15 S15 14 S14 13 S13 12 S12 11 S11 10 S10 9 S9 8 S8 7 S7 6 S6 5 S5 4 S4 3 S3 2 S2 1 S1
S29
REPEAT
28
S5
27
S4 S3
25
S2
24
S1
C712 104
1 2
R749 100
R709
390
R748 470
R747 1.2K
R746 2K
R740 1.2K
R739 3K
R737 3.3K
R738 820
102
C706
C713 2200UF - +
47K
R791 4.7K
L701 100UH
B02 B04 B01
2-16
R792 6.8K
R793 8.2K
R794 10K
R795 12K
C718 220UF - +
C719 104
AS
EU3
EU2
47K JP1
R704
R703 3.9K Q701 9015
SW705 SW707 STOP F.B. SW706 SW701 SW702 SW703 SW708 SW704 PLAY RANDOM DISPLAY FOLDER+ FOLDERF.F.
EU1
R713
3.3K
C705 102
C707 102
R712
Q704 9015
R782
R781
R780
3.3K
1.2K
4.7K
B05
B06
Q703 9015
1 2
2 1 4.7K
SW714 PRESER UP
26
B06 R787
1.2K
S6
R719 100K
10K R718
R784
390
29
20
6.8K
R750
R708 4.7K
R786
3.9K
S8
ZD701 3.9V
C720 102 D705 IN4148
R783
2.2K
S7
22
R711 4.7K
R707 4.7K
C703 104
R716 47K
D701 IN4148
C714 2.2UF
Q702 9014
R785
30
R725 10K B03
REM701
10 9 8 7 6 5 4 3 2 1 CN706
B[01:06]
31
R714 47K
R720 1K
D703 IN4148
30
5 4 3 2 1
34 33
5.6K R736
- +
CN707 TO BEAT CUT BOARD CN711
B01 B02 B03 B04 B05
S12
R734 3.3K
31
35
CN703 1 2 3 4 5 6 7 8 9 10
B01 B02 B03 B04 B05 B06
21
IN4148
R733 10K
S13
R751
R717 100K
LED701 Standby
S14
36
23
IF_REQ( I,-)
V_CHK( I,-)
SW_CD( I,-)
KEY1( I,- )
KEY2( I,- )
18
17
16
15
68K
R706
10K D702
C715 102
37
US2
14
B01 B02 B03 B04 B05 B06
B[ 01:06]
390
R715
LED702 Amber Back Light
S15
US1
13
KEY0( I,- )
OPT_SYS1(I, - )
IR(I,-) ST(I,-) V_GND(0,CM)
C704 102 R705 56K
12
C702 102
C708 15P
IF_ RST(0,Nch)
OPT_CT (I, - )
CF2( 0)
VSS1
CF1(I)
VDD1 11
10
9
C711 22P
R723 4.7M C709 15P
R741 100
680P
8
R724 680K C710 22P X702 8MHz
XT2( 0)
S1
7
38
S6
TR_ M+ ( 0 ,Nch)
6
S[1: 34]
C717 680P
IC701
5
CLASSIC
39
S10
4
POP
CN709
AMUTE(0,CM)
3
JAZZ
CN704
S11
2
ROCK
40
VDD3
80
HBS
VSS2
68
78
STEREO
CN708 TO TUNER BOARD CN102
S16
S18
S19
S20
S22
S30
S18
44
67
TR_ M- ( 0 ,Nch)
33
34
COM04 COM03 COM02 COM01
S19
45
S17
S21
S20
S22
46
S21
S24
S23 S23
S24
S26
S25 S25
S27
S26
S28 S28
S27
S30
S29 S29
S31
S30
S32
JOG+(I,ex-PU) JOG-(I,ex-PU) SYN_REC(I,ex-PU)
47
S13
C721
680P
680P C723
C722
R752 47K R735 47K
48
S14
L702 100UH
R702 100 R710 100
49
S12
1
D704 IN4148
50
S15
XT1(I)
R745 47K
R731 47K
R732 47K
R730 1K
51
VSS3
IF_OUT (I, -) / RX
R701 100
52
P_ PCON(0 ,CM)
79
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
53
VDD2
/RES(I,ex- PU)
R729 1K
54
66
77
1K
COM4
55
X701 32.768KHz
R728
COM3
56
65
76
100
COM2
TUEV_CL(0,CM)
R744
57
R743 100
1K
58
TUEV_D0( I, -)
R753 47K COM[01:04]
R727
COM1
TUEV_DI(0,CM)
C724
680P
C716
102
27K
COM04 64
73
5 4 3 2 1
62
COM03 63
R726 1K
CN701
TO AUDIO BOARD CN710
COM02
59
R742 100
CN702
COM01 61
72
R721 47K
TO CD BOARD CN903
R722
C701 100P
R754 47K
60
32
USB
SW709 STANDBY
SW710 VOL UP
SW711 VOL DOWN
SW712 HBS
SW715 EQ
61
40
R913 1K
68P
VVSS3
VVDD3
DVDD1.8
39
R915 2.2K
1 2 3 4 5
R914 27K
C922 104
- +
38
DVSS
DVDD
36
37
FSEQ
C2F
35
34
DEFECT
33
PUIN
32
DMUTEB
31
VVDD1
PCKIST
R912 29 6.8K 30 C915 473
2.2M
1UF R910
R907 15K
C916
- +
C921 100UF
C917 104
R911
680
PDOUT1
VVSS1
26
SPD0
SLD0
AVSS
PDOUT0
LDS
C923
CE DVSS DVDD
R916 5.6K
CL
R918 Open
TEIN LDD
CN903 R919 1K
R917 1K
C924 68P
DI
R921 1K
C925 104
TE
R950 10K
R920 100K
DO
R924 10K
27K
RESB
TEC
R930 0 R928 0
R922
FIN
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
62
3.3K
R933
R935 22K
INTB1 INTB0
C919 104
C918 104
-
C942 104
+ -
Q902 B764
+ -
C950 2.2UF
17
16
29
9
10
11
12
13
REG_B
8
REG_G
7
VIN2
V01-
NC
6
VG2
V01+ 5
V02+
VG1 4
V02-
VIN1 3
R926 150
R906 12K
NC
MUTE 2
GND
VCC1
IC902 LA6548NH
1
1 2 3 4 5
15
RESET
18
VIN3
19
VIN3G
20
V03+
NC
21
V03-
30
GND
22
NC
23
V04-
24
V04+
25
VG4
26
VIN4
27
VREF
VCC2
28
CD
+
C941 470UF
L901 26UH
TO AUDIO BOARD CN905
CN901
L903 100uH
- +
C949 104
MOTOR1 SLED
C948 100UF + -
C943 33UF
SW901 Limit Switch
MOTOR2 SPINDLE
64
65 VVSS2
CONT2
EIN
R909 27 680 28
C914 104
IC901 LC78690W
JITTC
+ -
M
VPDOUT2 VCOC2 VPREF2 VVDD2
CONT1
C944 104
M
63
C930 100UF + 67
66
DVSS
RFMON
STCK STREQ
R932 0
TO MCU BOARD CN702
- +
C920 100UF 68
70
69
71
XOUT
XVSS
R937 220
CONT0
L902 22uH
R946 33
72
XIN
73
74 XVDD
LRVDD
LCH0
75
76
78
77 LRVSS
3 4 5 6 7
TEST0
FEC
R908 6.8K
R948 100
DIN
25
C913 100UF
DVDD1.8
R940 150
R941 150 C947 104
+ -
R904 470 C912 104
CIN BIN
AVDD FD0 TD0
C908 103
C911 103
STDATA
23
C946 100UF
79
80 - + C907 10UF
+ -
AIN
24
Q901 2SA608NF
LRSY DATACK DATA
22
C910 100UF
C927 104
TEST1
VEEF
R934 22
C928 104
LPF
21
R903 3.3
C905 103
C906 102
+ -
R949 100
C904 473
X901 16.9344MHz
C937 102
+ -
PHLPF
20 19 18 17 16 15 14 13 12 11 10
R925 8.2K
C909 104
R902 8.2K
1 2 3 4 5 6 7 8 9 10 11 12 13 14 T+ 15 F16
683
C938 102
C929 1UF
R936 150
8
C903
VC VCC E D A B C F GND LD VR PD F+ T-
EFMIN RFOUT
C931 104
9
C902 103
R947 100K
CN902 PICKUP
C901 472
1
C945 104
2
R901 330
SLC0 AVDD RCH0
C940 473
R943 100
C926 104
C934 104
DOUT
R938 47
R939 33
C932 104
C933 + 330UF
C939 104
R942 100
+ - C935 4.7UF
DVDD
+ - C936 4.7UF
AMUTEB
5.2.3 CD servo section
14
R905 10K
2-17
5.2.4 Cassette mechanism section
C259
9
8
7
6
5
4
2
1
BA3308
3
IC201
C258
C205
+
100P
100P
10U
222M
C210
+
100U
C206
+
100
C214 104 R219
+
1000U
C215 R207 27
5K6
R205
22K
333M
1.5K
R215
10K
MUTE 10
Mic Rec. 8
R Out 6
10k
Rec.R In 7
10K R222
8050
+
10K
SW201- 5 - B
R221
C805 220U
C225 223
+
18
Beat Cut 9
10U
103M R803
17
16
Q802
C220
C803 332M
C806
1.5K R220
C804 223M
100
R214
R801
T801 3630
500P
15K
C217 7P
C226 7P
3
C801
9014
C212 102M
8K2
5.6
2
R216
14
SW201- 6- A 1
C208 222M
6K8
C211
9014
R206
R209
15
13
4U7
C207
C204 4U7
102M
Q201
6k8
11 12
SW201- 5 -A
R208
C209
222M
10
Q801
47K
R802
CN201
SW201-1 -B
+
CW201
R804
R / CH.
AC / B
27
4
470K
R / CH
C203 100U
4
AC / B
7P
GND
R203
R202
+ R204 8K2
5K6 R210
3
C227
3K9
3
R / CH
R201 47K
R211
2
R229
2
GND
L / CH
3K9
1
C216 7P
9
R225
1
222M
C201
L / CH. L / CH
8
7
6
C202
5
4
333M
SW201 - D - A
C213
SW201 - 1 - A
C260 223
GND
5
+8V
4
CN202
Rec. L In3 L Out 2
C219 103
SYNC 1
TO MAIN BD.CN305 24 8 - STDS13- 108
Q203 9014
BIAS =80 KHz
2-18
Q202 9014
5.2.5 Tuner section
R127 220
C96 12P
13 DET
104
3 4
C123 103 TP12(L)
TO AUDIO BOARD CN105
AGG
27K
- +
R107 100K
C92 102
R150
C117 4U7
Q108 2SC3330U
R147 47
ST D0 CE DI CL
C115
103 - +
R106 680
ZD101 5V6
- +220U
8050
104 C165
C162 223
C125
*
100UH
C102
GND
L105
R152 330 R151 330
223 CF103 10.7MA5 - A
C114
1M
Q109
C116 100U
100P C97
C95 100P
103
C141 47P
11
C149 104
C99
C140 100P
TO CONTROL BOARD CN708
IF
12 NC
CN102
C144 47U - +
R103
100K
R123
C142 100P 13 AMIN
FMIN
14
C143 100P 15 VDD
PD
16
17 AIN
AOUT
19
18
4.7k
LC72131 I01
10
B04
9
B03
8
B02
7
B01
6
D0
5
CL
DI
CE
XIN
GND
R110 680
R131 1K
R130 1K
GND
R129 1K
GND
VSS
XOUT
IC102
1
C154 20P
X101 7.2MHz
C100 223
20P
- +
102
C152 100U
2
C158 104
20
C148 223
C153
C150 104
R146 2K2
3
R142 2K7
C91
C151 223
R139 2K7
4K7
4
R141 R144 10K
R138 2K2
+ C147 1U
C146 103
R145 220 R140 2K2
TU- R GND TU- L +8V
2
R108 33K
10K
14 ST / MONO
1
CN101
AMIFIN
FM / AM FMIFIN
11
10
R134 18K
12
16
15
AMIFOUT
LOUT
ROUT ST
R111 150K
9
8 R104 27K
104
C128 C93 102
CF105 T103 450KHz
Q110 9018F R154 22
C163 104
CDA10.7MC1- A
R119 3K3 C120 0.22U - + C155 8p C118 3U3 - + CF104 R118 10
C121 0.22U - +
C130 222 18
MPXIN IFBUFF
DETOUT
7
6
GND1
FMIFOUT
C129 + 4U7 17
C131 20P R100 820 FMOSC
21 VCC2 VCC1
C113 100U
- +
C104 10U
C127
C124 103
2070
R153
C137 102
C132 18p
C105 223
- +
R101 47K
TP11(R)
R109
C160 104
R117 10
C164 104
R135 18K
C107 56p
H=7. 2+ - / 0. 5V(CA / KR / AU)
TP8 (E)
TP16(H)
CF102 10. 7MA5 - A
4
5
GND2
FMRF2 AMOSC
3
2
REG
AMRF
T101 612R
C108 390P(P) VD103 SVC348
20 R121 19 10
L102 2T5 5MM 22
23
FMRF1
IC101 LA1823
H=7. 2+ - / 0. 5V(XE / UK)
L=1.0+ - / 0.1V
R143 10K
103
1
AM COIL ANT 65 : 25
R120 1K2
R124 220K C156
C133 102
SVC201 VD102
SVC201
C139 30p
R122 10
CT102 10P
Q107 9018H
C134 6p
24
GND
C135 102
L101 3.5T 4.5MM
L100
4.5T 3.5MM
C101 18p
R102 1K
D101 IN4148
D102 IN4148
C159 15p
C122 102
C103 6p
R128 10 C126 104
CF101
CT101 VD101 10P
GND BPF 87~108MHz
H=7. 2+ - / 0. 5V(ALL)
AMVT: L=1.4+ - / 0.1V
C94 102
R125 100K
R126 100K
FM-ANT
FMVT: L=1.8+ - / 0.1V
104
C157104
C145 102
C138
R132
10K
D104 IN4148
2-19
5.3 STANDARD SCHEMATIC DIAGRAMS for RC-EZ31 5.3.1 Primary and Amplifier section
1. DISCONNECT POWER CORD BEFORE SERVING 2. RECOMMEND THE UNIT BE OPERATED BY DC 12V VOLTS DURING TROUBLE SHOOTING 3. COMPONENTS MARKED WITH
B/C
5
Rch
4
Lch
3
GND
2
+8V
1
HAVE CRITICAL
CHARACTERISTICS.ONLY REPLACE WITH THE COMPONENT OF THE SAME TYPE NEMBER. 4. SUBJECT TO CHANGE WITHOUT NOTICE
R395
2.2K
C315 1
1K
IN4001 D302
100uF 2
C307 14
3
4
5
R315
180K R307
C303 152M C319
100uF
2.2K 6
12
11
13 C308 100uF 10
470uF/25V C330
Q305 9014C
R310
SP302
D300 IN4148
C402 220U/25V +
R329 33K
MOTOR
100K Q303
D301 IN4001
9015C
LEAF-SW
CN1102
REMARK *
R330 10K
R300 10K R320
-
154M
D308
JP VERSION :F110 1 2A125V
R319 27k
XE VERSION :F1101 T2AL250V DC
SW301-A
C1102
+12V +8V
2SD2061
GND
CN303 TO CN1101
R401
IN4148 D401
C401 0.022
+8V
C404
+12V
330 1/2W
GND
47UF
CD TAPE TUN
3300UF / 25V
C1105
TO CN303 CN1101
DC+
8.2V DZ401
R506 10K
2-20
+ C2 102P
2200UF/25V
2200UF / 25V C403
R505 10K IN4148 C505
D305 IN4148
-
470uF/16V C314
C320
4.7K
47uF 9 C306 100uF/16V C305
7
8 R308 180K C304 152M
10K R328
C310
GND
D307
R503 10K
R504 10K IN4148
B9
A VEE
8 VSS
1UF
1UF
7
6 INH
Y1 5
C510
1UF
10
C509 X3 11
12 X0
X Y3
3 Y
4 C503
D306
1UF 13 C502
1UF
1UF C395 X1 14
1UF C508 X2 15 2 Y2
16 R501 1K 1 Y0
VDD
2K2 R502
100U / 10V C501
Q329 9014C
IC501 TC4052
SP301 +
C1 102P
8550 Q306
Q401
1UF
CD+8V
9014C
C506 1UF
3.3U C391
Q369
C4 102P
CN332
DC+ SW301-B
JK301 HEAD
10T
C3 102P
LFSW
C504
CDGND
18K R393
R391 3.9K
MUTE
R389 10K
CD-R
47UF
AGND
4K7 R368 4K7 R367
C378
CD-L
18K R392
C394 103M
CN906
103M C393
3.9K R394 3.3U C392
C377
0.1UF
C507 1UF
C372
47UF
R374
100
CN305
3.3K
10T
L301
470uF/16V
GND R373
120
IN4148
SYNC SYNC LEDLED+
120 L303
R314
C313
LFSW CD TAPE TUN
R313
L302 10T
R309 4.7K
D309 D310 IN4148 IN4148
R332 1k R333
1k R331
R302 2.2K R306 7.5K
1UF
IN4148
5K6
100UF C323
47UF
R312 5K6
C317
C329 100UF/10V
IN4148
C316
R311 5K6
R371 8.2K
10K
R321 120K
D311
C318 100UF D314
R379
500P 120K R380
C373
500P
R328
D1936
R399 10K
100UF C376
3.2k
9014 Q391
4.7K
R303 15K
R326
Q302
R396 10K
R375
CN309 C327 0.01
4K7 R378
C374
1.2K
47UF C326
R372 330 4K7
R304 4.7K
1UF
R370 8.2K
DZ301 5.1V
47UF C371
R381 1.2K
C302 1UF
C324
102M
CN307
9014C Q392
154M
IC301 UTC8227
R316 5.6K
473M
50KA
5.6K
C321 R323
SYNC
R398
1UF
C309
VR301-A
C311
TO CN204
R301
15K
10K R327
R322 R222 10K
Q371 S8050
C301
C325 1UF
473M 5.6K
C322 R324
10 9 8 7 6 5 4 3 2 1
B/C TA R/R R/O GND +8V R/L L/O
VR301-B 50KA
102PF
R369 1K
CN307 TO Rec BD CN202
102M
C312 C369
R305 7.5K
Q301 D1936
220UF/25V
CN201 (TO:CN101)
0.04
AC D1102
AC LINE
IN4001
D1104
IN4001
C1104
0.04
T1101
CN1101
D1101 IN4001 C1103
0.04
D1103
IN4001
F1101
C1101 0.04
BATT 12V
5.3.2 Front sction
SW705 F.F
SW703 STOP
SW702 F.B
9
8
7
6
5
4
3
REM701
R706
Q702 9014
1.5K
SW701 MEMORY
SW704 P/P
LCD701
R702
SW706 REPEAT
2
1
REP M
18
17
SEG2
15 16
11 12
COM3
14
9 10
COM1
13
7 8
6
3 4 KEY11
5
1 2
2.7K
REM
R703
2.7K
CN702
S6
KEY01
GND
+5V
SEG5
SEG4
SEG3
SEG1
COM2
KEY14
KEY13
KEY12
KEY02
LED701
18PINS CN701
TO CN203
2-21
5.3.3 CD servo section
CLOSE C938 104
C950 104
+ C928 103
C949 100P
100U
R946 10
C919 103 Q903 2SA1342
C941 682M
C929 10U
C931 0.33U
TBC 47
3 E
FSC 46
4 F
DGND 45
180K 180K
6 TE-
SLC 43
R909
R908 150K
104M
SLI 44
RFS 42
7 TE 2K2
C903 333M
IC901
8 TESI
RFSM 41
LA9242M 9 SCH C906 0.1U
C906 330P
CN901
C908 C907 104M
R913
CV+ 40
(ASP)
10 TH
CV- 39
11 TA
RW 38
12 TD-
HFL 37 TES 36
14 JP
TOFF 35
C961 R941 12K
R944 100K
R939 R940 22K
C925 222M
330
C923 330P
SPG
SP-
SPO
SLEO
SLD
SL-
SL+
25
26
27
28
29
30
31
R924 33K
56K R930 56K +
+
VCC2
VREF
VIN4
VG4
V08
V07
18
17
16
15
14
13
RES
19
CD
20
VUN3
21
VG3
22
V05
23
IC903
SL +
M
-
3
4
SL-
4
5
P-SW
5
6
GND
6
MUTE
C2F
VDD
RW
LOUT
REMOTE
L/RVDD
VSS 39
11 TMDO
SEG1/COM1 38
12 CLV+
SEG2/COM2 37
13 CLV-
SEG3/COM3 36
14 HFL
SEG4/S1 35 SEG5/S2 SEG6/S3
16 TOFF 17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
VCC1
MUTE
VIN1
V01
V01
V02
V03
V04
VG2
VIN2
REG-OUT
REG-IN
1
2
3
4
5
6
7
8
9
10
11
12
R932 10K
+
C917 104
Q902 B764
C916 220U
2-22
C963 104
+ C952 470U
L901 26uHX2
REM RANDOM/KEY02 KEYIN/KEY11 PROG/KEY12 DIGI/KEY13 DIGI/KEY14 SEG1/COM1 SEG2/COM2 SEG3/COM3 SEG4/S1 SEG5/S2 SEG6/S3 SEG7/S4 SEG8/S5 GND +5V
TO CN701
34 33
32
C968 104
+
2
NC 40
(DSP)
10 EFMIN
R934 150K
C915 4U7
R931 2K2
CSC1469XH
1
DIG2/KEY14 41
LC78601RE
9 EFMO
+
+
SL+
DIG1/KEY13 42
IC902
R933 150K
R927 6K8
C954 2U2
24
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
32
C958 332
R926 10K
R929 R922 1K5
C910 333M
R928 1K
15K
C912 153M
R918 68K
C959 332M
C914 0.33U
SPIN-
PROG/KEY12 43
JP+ 33
R925 3K3
SPIN+
6 VVDD
NC/S6 SEG8/S5
SPI 24
CN903 16 PINS
NC/KEY01 45 KEYIN/KEY11 44
8 VSS
TO CN906
48
5 ISET
10K
15P(N)
+8V AGND ROUT AMUTE GND LOUT
R955 220
RANDOM/KEY02 46
3 PDO
DOUT
SP 23
C948 102M
6 5 4 3 2 1
49 DMUTE
PUIN
AGND 22
R961 5.6K
FSEO 47
7 FR
C913 22U
3
50
SLEO-
FE21
C911 104M C956 332M
2
51
SLEO+
FE 20
R919 15K R921 27K
1
52
SLO-
FA19
C947 102M
C957 100P
FA 18
R923
FD 17
FD-
R960 5.6K
R936
R938 1K
TGL 34
R920 22K R959 10K
M
53
15 TES
16
SP
R935 10K
104
R942 10K
R917 3K3 15 TO
-
54
4 VVSS C924
R914 100K 13 TD
55
PLK
27K
R937 470
332
15K
R916
56
CLOCK
330
333M
57
3.3VDD
473M
R911
+
JP-
C902
C926
58
2 4.2M
C937 104
5K6
R910
TO CD DECK
C927 2U2
59
CDIN
C901
5 TB
+
60
RWC
R906
R945 4K7
61
JP-
R905
62
SEG7/S4
2 FIN1
63
DEF1
ROUT
1 270K
L/RVSS
NC
R943 48
CLOSE
49
PMTSL1
50
DRF
51
DEF
52
XIN
FIN2
53
CL
54
CLK
PHI
LF2
55
DE
BHI
56
DAT
LDS
LDD
57
FSS
CC1
58
DRF
59
VCC2
60
VR2
61
REFI
62
TGL
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
+
63
V06
VREF COM* E D A B C F GND LD VR MD F+ TT+ F-
C964 3U3
64
100K
R957 220
+
64
CN902
+ C945 3U3
C944 680P
100K
1 R904
+
C939 100U
R958 10K
+
100K
R903
R956 220
C962 104
C955 102
100K
R902
Q904 2SA1342
C942 220U
X901 16.934MHz
+
10K
C933 473M
R901
D902 IN4148
SW902 CW904
CD DOOR SW
+
C932 47U + Q901 2SA608NF
CN904 10K
C951 103 C940 104
+
XOUT
C960 104p
XVDD
C953 220U
R907 100
GND D901 IN4148
C936 1U
+
JP+
C935 103
C934 10U
C918 100U
C930
RES
+
5.3.4 Cassette mechanism section
1. DISCONNECT POWER CORD BEFORE SERVING L/CH.
9
8
7
6
5
L201 15UH +
100U
+
222M
100
104 R219
1000U
C214
C215 R207 27
+
C212 102M
8K2 C211
5K6
R205
R209
C213 333M
R208
C206
Q201
9014
15
C210
+
4. SUBJECT TO CHANGE WITHOUT NOTICE
R203 47K
8K2 + C208 222M
14
333M
13
5K6 R210
11 12
R225
10
3K9
222M
C209
CN201
S201-5-A
R211
S201-1-B
4
C203 100U
820
AC/B
R229
R264
GND
3K9
R/CH
3
R201 47K R204
C227 7P
470K
L202 15UH
GND
R202
HAVE CRITICAL CHARACTERISICS. ONLY REPLACE WITH THE COMPONENT OF THE SAME TYPE NUMBER
C226 7P
100P
R206
820
AGND
S201-6-A 2 3
10K
R216 10K
R220
17 18
CN204
8050 +
SYNC
10U
C260 223
C220
C225 223
103M R803
16
15K
R804
9014
220U C805
+
C806
S201-5-B
Q802
5.6
500P
C804 223M
332M
Q801
100
T801-A 3630
C801
22K
R801
AGND
R802
1
C803
9014
R/L L/O
10K
R222
10K
+8V
Q203
R224
9014
TA R/R R/O AGND
1.5K
R215
Q202
10K
R221
1.5K
103
C219
B/C
R214
2
9
27
R265
8
C216 7P
L/CH.
7
C258
C204 4U7
5 6
C201 222M
4
10U
6k8
CN203
3. COMPONENTS MARKED WITH
47P
47P L204 15UH
6K8
S201-D-A
C259 100P
S201-1-A
C261
C205 +
L203 15UH
4
AGND
1
4
C262
3
AC/B R/CH.
2
2. RECOMMEND THE UNIT BE OPERATED BY DC 12V VOLTS DURING TROUBLE SHOOTING
C207 4U7
R/CH
3
AGND
C202 102M
2
1
1
L/CH.
IC201 BA3308
AGND
SYNC
9 8 7 6 5 4 3 2 1
CN202 TO CN304
2-23
DZ101 5.6V
102P C117
2-24 68P C121
R116 10
CF103 10.7M
C102 1UF
C101 1UF
CF102 10.7MHZ
R103 150 B/C Rch
+8V
SW102A
C107 153M
R105 18K
R104 18K
3.9K
R108
SW102B
TO CN201
100K R101
100K R102
C108 153M
R-OUT
LPF1 15 L-OUT 14
10 TUN LED 11 ST LED QUAD
MPX IN 17 LPF2 16 8 FMIF IN 9 GND
C112 0.22UF
C113
823M
R107 12K
C106 473M
C103 1UF
C111M Q101
CN101
473P C109
C111 220UF 473P C110
FM ANT
13
AFC 19 DET-OUT 18
6 VCC 7 AMIF IN
AM ANT 120T:15T
12
AM OSC 20 5 VGC
21
120P C118
CF101 465KHz
T101 10002
C120 22UF
22
23
24
VC3
473P C126
C119 0.47UF
IC101 2111A
1 FM RFIN AM RFIN 2 RF GND FMRF OUT 3 AM LOW RF VCC 4 MIX OUT FM OSC
47K R117
C115 2P
R110
15
2.5T L101
NC
22P
VC1
473P C125
D101 IN4148
D102 IN4148
473P C127
C114
3.5T
VC2
L102
680P C105
C104 330P
5.3.5 Tuner section
R109 10K
T103 1010
AM
VC4 SW101
FM
R106 22K
MONO ST
C123 5P
Lch
GND
< MEMO >
Victor company of Japn, Limited Audio/Video Systems category 10-1,1chome,Ohwatari-machi,Maebashi-city,Gumma-ken, 371-8543,Japan
(No.MB593) Printed in Japan VPT