Aiwa CX-JT8 User manual

http://servis-manual.com/

18
CX-JT8 SECTION 4
TEST MODE
[COLD RESET]
•The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. Press the [POWER] key to turn the power ON.
2. Pressthreekeys of x, [ENTER] and[POWER] simultaneously.
3. The message “RESET” is displayed on the fluorescent indicator
tube momentarily, then becomes standby states.
[TUNER STEP CHANGE-OVER]
(Except AEP, UK and CIS models)
•Astep ofAM channels can be changed over between 9 kHz and
10 kHz.
Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press the [TUNER BAND] key to select “AM”.
3. Press the [POWER] key to turn the power OFF.
4. Press two keys of [ENTER] and [POWER] simultaneously.
5. The message “9K STEP” or “10K STEP” is displayed on the
fluorescent indicator tube, and thus the channel step is changed
over.
[CD SHIP MODE]
•This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customer
after repair.
Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press the [CD] key to select “CD”.
3. Press two keys of [CD] and [POWER] simultaneously.
4. The message “LOCK” is displayed on the fluorescent indicator
tube, and the CD ship mode is set.
[CHANGE-OVER FUNCTION OF MD/VIDEO]
•This mode is used to enable function of external input to change
over between MD and VIDEO.
Procedure:
1. Set to standby state.
2. Presstwokeysof[MD VIDEO ] and[POWER] simultaneously.
3. The message “MD” or“VIDEO”isdisplayedonthefluorescent
indicator tube, and the function of external input is changed
over.
[CDTRAY LOCK MODE]
•This mode is used to unable to take sample disc out of tray in
the shop.
Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press the [CD] key to select “CD”.
3. While pressing the xkey, press the Zkey for 5 seconds.
4. The message “LOCKED” is displayed on the fluorescent
indicator tube and the tray is locked. (Even if pressing
the Zkey, the message “LOCKED” is displayed on the
fluorescent indicator tube and the tray is locked)
5. To release from this mode, while pressing the xkey, press
the Zkey for 5 seconds.
6. The message “UNLOCKED” is displayed on the fluorescent
indicator tube and the tray is unlocked.
[AMPTEST MODE]
•This mode is used to set the parameter ofAMP IC for adjustment
of tone quality and VACS level and display VACS status.
Procedure:
1. Press the [POWER] key to turn the power ON.
2. Pressthreekeysof x,[HEAVY] and [HIP POP] simultaneously.
3. When the AMP test mode is activated, the message “AMP
TEST” is displayed on the fluorescent indicator tube
momentarily.
4. Press two keys of [HEAVY] and [DISC DIRECT PLAY 2]
simultaneously, mode is changed over to parameter setting of
AMP IC and display of VACS status.
5. When theVACS ON, the message “V2255255” is displayed on
the fluorescent indicator tube, and when the VACS OFF, the
message “2255255” is displayed on the fluorescent indicator
tube.
6. Press the [VOCAL] key, DBFB ON/OFF is changed over.
7. Press the [ENTER] key, surround ON/OFF is changed over.
8. Press the [MANUAL] key, EQ band is changed over to LOW,
MID or HIGH.
9. Press the [HIP POP] and [TECHNO] key, EQ curve adjustment
value is changed over between –8dB to +8dB.
10. To release from this mode, press two keys of [HEAVY] and
[TECHNO] simultaneously.
)(

19
CX-JT8
[AGING MODE]
•This mode can be used for operation check of CD section and
tape deck section.
CD section and tape deck section work in parallel.
If an error occurred:
The aging operation stops only an error occurred sections and
display then status.
If no error occurs:
The aging operation continues repeatedly.
Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press the [CD] key to select “CD”.
3. Set disc on the tray and set tape into the deck.
4. Set the “ALL DISCS” mode and “REV OFF” mode.
5. Pressthreekeysof x,[HEAVY] and[DISC CHANGE/DISC SKIP]
simultaneously.
6. Themessage“AGING”isdisplayedonthefluorescentindicator
tube momentarily, then aging operations of CD and tape are
started at the same time.
7. To release from this mode, operate the “COLD RESET”.
1. Display at the Aging Mode
Display operating state of CD section and tape deck section
alternately.
If an error occurred, stop display which that section.
2. CD Section
The sequence during the aging mode is following as below.
Display at the aging mode is the same as the normal operation.
Aging mode sequence (CD section) :
Start (from disc 1)
Disc chucking
TOC read
Play first track for 2 seconds
Play last track for 2 seconds
EX-change open/close
Open the disc tray
Disc skip
Close the tray
Change the next disc.
3. Tape Deck Section
The sequence during the aging mode is following as below.
If an error occurred, stop display that step.
Aging mode sequence (tape deck section) :
Rewind the tape A and B
“AAG-1 or 2”
Shut off
FWD play the tape A
“AAG-3”
2 minutes
Fast forward the tape A
“AAG-4”
Shut off or 20 seconds
REV play the tape A
“AAG-5”
2 minutes
Rewind the tape A
“AAG-6”
Shut off
FWD play the tape B
“BAG-3”
2 minutes
Fast forward the tape B
“BAG-4”
Shut off or 20 seconds
REV play the tape B
“BAG-5”
2 minutes
Rewind the tape B
“BAG-6”
Shut off
Note: “*AG-*” is display of each step.

20
CX-JT8
[GCTEST MODE]
•This mode is used to check the fluorescent indicator tube, LED
and key.
Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press three keys of x, [HEAVY] and [DISC DIRECT PLAY 2]
simultaneously.
3. Fluorescent indicator tube and LEDs are all turned ON.
4. Press two keys of [HEAVY] and [DISC DIRECT PLAY 2]
simultaneously, mode is changed over.
5. In the key check mode, press each key, the defined key number
of every each key list is displayed on the fluorescent indicator
tube.
6. In the key count check mode, “K-CNT 0” is displayed on the
fluorescent indicator tube. Each time a key is pressed, “K” value
increases. However, once a key is pressed, it is no longer taken
into account.
7. In the headphone input check mode, connect the headphone,
the message “H_P ON” is displayed on the fluorescentindicator
tube, and disconnect the headphone, the message “H_P OFF”
is displayed on the fluorescent indicator tube.
8. In the volume check mode, turn the [VOLUME] knob, the
display on the fluorescent indicator tube is changed over to
“VOL UP”, “VOL FLAT” or “VOL DOWN”
[MCTEST MODE]
•This mode is used to check operations of Amplifier.
Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press three keys of x, [HEAVY] and [DISC DIRECT PLAY 3]
simultaneously.
3. When the MC test mode is activated, the message “MC MODE”
is displayed on the fluorescent indicator tube momentarily, then
VACS level is displayed on the fluorescent indicator tube.
4. Press the [TECHNO] key, the display on the fluorescent
indicator tube is changed over to “EQ MAX”, press the
[MANUAL] key, the display on the fluorescent indicator tube is
changed over to “EQ MID”, press the [HIP POP] key, the
display on the fluorescent indicator tube is changed over to “EQ
MIN”,
5. Turn the [VOLUME] knob, the display on the fluorescent
indicator tube is changed over to “VOL MAX”, “VOL MID” or
“VOL MIN”
6. Press the [ENTER] key, VACS ON/OFF is changed over.
7. When the [REC PAUSE/START] key is pressed with a tape set
in the deck-B, the function is switched “MD” or “VIDEO” and
recording starts. When the mor Mkey is pressed during
recording, the tape is rewound back to the beginning of
recording, the function is switched to “TAPE B”, then playback
starts.
8. When the [CD SYNC] key is pressed with the test tape (AMS-
100, AMS-110A) in the deck, number of space between tunes
is counted, then ifAMS-110A is set, “OK” is displayed on the
fluorescent indicator tube and if AMS-100 is set, “NG” is
displayed on the fluorescent indicator tube.
9. To release from this mode, press the [POWER] key.
[MODEL, DESTINATION AND VERSION DISPLAY]
•This mode is used to check the model, destination and software
version.
Procedure:
1. Set to the standby state.
2. Pressthreekeysof x,[TECHNO] and [HEAVY] simultaneously.
3. When the model, destination and version display mode is
activated, the model an destination is displayed on the
fluorescent indicator tube.
4. Press two keys of [HEAVY] and [DISC DIRECT PLAY 2]
simultaneously,mode is changed over to modelanddestination
display mode and version display mode.
5. In the version display mode, press the [DISC DIRECT PLAY 3]
key, display is changed over to version display and year, month
and day of the software creation display.
6. To release from this mode, press the two keys of [TECHNO]
and [HEAVY] simultaneously.
[CD ERROR CODE DISPLAY]
•This mode can be used for error display of CD section.
Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press the [CD] key to select “CD”.
3. Press three keys of x, [HEAVY] and [DISC DIRECT PLAY 1]
simultaneously.
Note: Error code is not displayed on the liquid crystal display.
[CD SERVICE MODE]
•This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the optical pick-up.
Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press the [CD] key to select “CD”.
3. Press three keys of x, [HEAVY] and Zsimultaneously.
4. When the CD service mode is activated, the message “TRVS
ON” is displayed on the fluorescent indicator tube.
5. Press the Mkey, optical pick-up move to outside track and
the message “SLED OUT” is displayed on the fluorescent
indicator tube.
6. Press the mkey, optical pick-up move to inside track and
themessage“SLEDIN”isdisplayedonthe fluorescent indicator
tube..
7. Press the [TECHNO] key, traverse ON/OFF is changed over.
[5 REPEAT LIMIT CANCEL]
•Number of repeat for CD playback is 5 times when the repeat
mode is “REPEAT”. This mode is used to enables CD to repeat
playback for limitless times.
Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press the [CD] key to select “CD”.
3. Press three keys of x, [HEAVY] and Ysimultaneously.

CX-JT8
2121
CD SECTION
Note:
1. CDBlock isbasically designedto operatewithout adjustment.Therefore,
check each item in order given.
2. UseYEDS-18 (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩimpedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specified value with the following checks.
S-CURVE CHECK
Procedure :
1. Connect an oscilloscope to TP (FE) and TP (VC).
2. Turn the power on.
3. Load a disc (YEDS-18) and actuate the focus search. (In
consequence of open and close the disc tray, actuate the focus
search)
4. Confirm that the oscilloscope waveform (S-curve) is
symmetrical betweenA and B.And confirm peak to peak level
within 3 ±0.5 Vp-p.
Note: •Try to measure several times to make sure than the ratio
of A : B or B :A is more than 10 : 7.
•Take sweep time as long as possible and light up the
brightness to obtain best waveform.
RF LEVEL CHECK
Procedure :
1. Connect an oscilloscope to TP (RF) and TP (VC).
2. Turn the power on.
3. Load a disc (YEDS-18) and playback.
4. Confirm that oscilloscope waveform is clear and check if RF
signal level is correct or not.
BD board Oscilloscope
TP(FE)
TP(VC)
symmetry
S-curve waveform
within 3
± 0.5Vp-
p
A
B
TP(RF)
BD board oscilloscope
TP(VC)
Note: Clear RF signal waveform means that the shape “ ◊” can be clearly
distinguished at the center of the waveform.
Connecting Location: BD board
RF signal waveform VOLT/DIV : 200mV
TIME/DIV : 500ns
level :1.3
± 0.3Vp-
p
TP (VC) TP (RF)
TP (FE)
IC721
– BD Board (Conductor side) –
SECTION 5
ELECTRICAL ADJUSTMENTS

CX-JT8
2222
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM – CD Section –
8
7
9
10
80
79
70 LIMIT SW
20
TDO
18
10
VO3(+)
FOIN
20TIN
3SPIN
7LDS
25SLIN
17 VO3(–)
11 VO2(+)
12 VO2(–)
26 VO4(+)
27 VO4(–)
2VO1(+)
1VO1(–)
A
C
B
D
E
F
LD
PD
RF AMP, FOCUS/TRACKING ERROR AMP,
DIGITAL SIGNAL PROCESSOR, DIGIRAL SERVO PROCESSOR,
DIGITAL FILTER, D/A CONVERTER
IC721
21
FDO
23
SLDO
22
SPDO
25
CONT4
A
B
D
E
F
C
I-V AMP
DETECTOR
LD
PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSM-213DCP)
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
M702
(SPINDLE)
M701
(SLED)
M
M
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC722
49
48
X701
16.9344MHz
S701
(LIMIT)
79 DATAIN
80 DATACK
5C2FIN
1LRSY
2ADDATA
3ADBCK
4ADLRCK
7CKIN
9CKOUT
78 RESB
99 I-LC78646/LC78684 DI
98 O-LC78646/LC78684 DO
100 O-LC78646/LC78684 CLK
5O-LC78646 CE
85 I-WRQ
86 I-CD DRF
4O-LC78646 RESET
60
DATA
59
DATACK
52
C2F
58
LRSY
57
ASDFIN
56
ASDACK
55
ASLRCK
54
16MOUT
106
76 66
53
EFLG
50
FSX/16MIN
73 CMDOUT
74 CMDIN
CE FSYNC
O-LC78684 CE
I-LC78684 SYNC
75 CL
26MP3RES
64
DO
63
DI
62
CL
96I-CD NUMBER SENS
22
I-BU IP DOWN/
CD OPEN CLOSE
9RIN LM-R
11RESET
1O-SYS-MUTE
94O-POWER RELAY
29I-HOLD
S-MUTE
O-POWER
HOLD
61
CE
65
*WRQ
67DRF
72CD MUTE
66*RES
4OUT1
2OUT2
M751
(LOADING)
M
LOADING MOTOR DRIVE
IC701
MP3 DECODER
IC801
SYSTEM CONTROLLER
IC901 (1/2) S751
OPEN/CLOSE
DETECT
OPEN
CLOSE
LEVEL SHIFT
Q731
TABLE ADDRESS
SENSOR
IC731
+
ROTARY
ENCODER
S711
7FIN LM-F
9RIN TM-R
4OUT1
2OUT2
M741
(TABLE)
M
TABLE MOTOR DRIVE
IC712
7FIN TM-F
LM-F, LM-R,
TM-F, TM-R
D
S-MUTE,
O-POWER, HOLD
B
42
LCHO
45
RCHO R-CH
CD-L
A
APC
FIN2
FIN1
LDD
LDS
TIN2
TIN1
XOUT
XIN
RF 4EFMIN
3ERROR
CORRECT
EQ,
AGC
COMMAND
INTERFACE
CLOCK
GENERATOR
PH, BH
RF AMP
TBAL A/D
CONVERTER
D/A
CONVERTER
EXTERNAL
AUDIO IN
SERIAL OUT
D/A
CONVERTER
SERVO
PROCESSOR
AUTOMATIC
POWER CONTROL
Q701
27I-POWER DOWN POWER DOWN
RESET
RESET,
POWER DOWN
C
• SIGNAL PATH
: CD PLAY
• R-ch is omitted due to same as L-ch.
(Page 24)
(Page 24)
(Page 24)
(Page 23)
R-CH
DISC TRAY
ADDRESS DETECT
I/01 – I/016
A0 – A8
MDATA0
– MDATA15
MADRS0
– MADRS8
27 OE45OEB
13 WE42WEB
14 RAS41RASB
29 LCAS43CASLB
28 UCAS44CASUB
IC802
MEMORY
2-5, 7-10,
31-34, 36-39 23-30, 33-4060-53, 50
16-19, 22-26
MUTING
Q311
MUTING CONTROL
SWITCH
Q312

CX-JT8
2323
10
CAPSTAN/REEL
MOTOR DRIVE
Q601
11
PLUNGER DRIVE
(DECK-A)
Q602
MM
TAPE MECHANISM
DECK BLOCK
(CAPSTAN/REEL)
(DECK-A)
(DECK-B)
LED DRIVER,
TAPE MECHANISM CONTROLLER
IC202
MOTOR
3 DATA
4 CLOCK
87 I-LC72121 DI
92 O-LC72121/BU2099 CLK
9 O-LC72121 CE
88 I-TUNER TUNE
97 I-TUNER STEREO
2 I-BU1924 DI
3 I-BU1924 CLK
21 I-MIC/I-TU SIG
19 I-SPEANA M
91 O-LC72121/M61529/BU2099 DO
5 LCK
18 SO
A-SOL
G
TAPE-L, REC-L (Page 24)
K
DI, SO, CLK, MCLK, LCK, (Page 24)
J
TUNER-L (Page 24)
D
LM-F, LM-R, TM-F, TM-R (Page 22)
TUNER UNIT
AM LOOP
FM ANT
AM ANT
L-CH
R-CH R-CH
TU-MUTE
DI
DI
CLK CLK
S-OUT
LCK
DI
BIAS OSC
L201
REC BIAS
SWITCH
Q228
+9V
BIAS OSC
Q223
ERASE
HRPE1
(REC/PB/ERASE)
(DECK-B)
HP1
(PB)
(DECK-A)
L-CH
R-CH R-CH
R-CH
L-CH
R-CH R-CH
18 I-SPEANA L
20 I-SPEANA H
76 I-HP MUTE
BAND-PASS
FILTER
Q204 – 206
KEY ACTIVE
SWITCH
Q504, 505
28 I-RMC
REMOTE CONTROL
RECEIVER
IC802
S301 – 309,
S311 – 331
(FRONT PANEL KEY)
83 I-VOL B
84 I-VOL A
ROTARY
ENCODER
S801
SPEANA AMP
Q201, 202
B+ SWITCH
Q921
FL901
FLUORESCENT
INDICATOR TUBE
MUTING
Q219, 221
12
PLUNGER DRIVE
(DECK-B)
Q603
B-SOL
LED213
LED901
A-PHOTO
B-SOL
A-SOL
CAPM+
B-PHOTO
A-HALF
B-HALF
A-MODE
B-MODE
REC (FWD)
REC (REW)
9 I-BASS
+3.3V
B+
D603 – 610
I-B-PHOTO
I-B-HALF
I-REC (FWD)
S10/I-REC (REW)
S6 – S10
S1 – S5,
S11 – S26
G2 – G11
48
52
49
53
50
55
S7/I-A-PHOTO
95
O-KEYSCAN
S8/I-A-HALF
U8
U9
U7
S10/U11
S7/U5
S8/U6
S9/I-B-MODE
47
54
S6/I-A-MODE S9/U10
S6/U4
U8
U9
U7
U11
U5
U6
U10
U4
93O-POWER LED
8
O-BU2099 LCK
41 – 45, 56 – 7131 – 40
MIC, SA SA
MIC
E
VOLUME
79 I-BASS B
80 I-BASS A
ROTARY
ENCODER
S802
TREBLE
MIDDLE
81 I-JOG B
82 I-JOG A
ROTARY
ENCODER
S803
BASS
77 I-TRE B
I-KEY1 –
I-KEY3
78 I-TRE A
ROTARY
ENCODER
S804
MULTI JOG
26 – 24
SO
MCLK
LCK
X901
32.768kHz
13
12
XT2
XT1
7
O-M61529 CLK
16
15
X902
8.64MHz
CF2
CF1
i-BASS
LED303 8 CD3
3
LED302 7 CD2
2
LED301 6 CD1
1
POWER 1STANDBY/ON
(Page 24)
HP
F
(Page 24)
(AEP, UK)
(Except AEP, UK, CIS)
SYSTEM CONTROLLER
IC901 (2/2)
FM 75Ω
(COAXIAL)
LED DRIVER
IC201
3 DATA
4 CLOCK
5 LCK
18 SO
LED204 9 TAPE
TAPE A/B
LED205
10HEAVY HEAVY
LED206
11VOCAL VOCAL
LED207
12SALSA
TECHNO
LED208
13TECHNO
SALSA
LED210
14HIP POP HIP POP
LED211
15MANUAL MANUAL
LED203 8 AUX
MD (VIDEO)
LED202 7 TUNER
TUNER BAND
LED201 6CD
CD
DISC DIRECT PLAY
ANTENNA
34
32
BIN (L)
AIN (L)
28 27
EQOUT (L)
26
PB-OUT (L)
TAI (L) MUTE
DECK A/B SELECT SWITCH, REC/PB EQ AMP
IC201 (SUFFIX-11) IC201 (SUFFIX-13)
REC-
OUT (L) REC-IN (L)
21 EQ 24
DO
CLK
CE
TUNED
ST
RDS DATA
RDS INT
MULTI CONTROLLER
IC309 (SUFFIX-11) IC309 (SUFFIX-13)
7 BIAS
15
14
6 REC
11 TUNER MUTE
MUTE-ON/OFF
REC MUTE-ON/OFF
9
10 REC MUTE
PB MUTE
8A/B 13
A/B
REC ON/OFF
SWITCH
Q222, 225
3DATA
4CLOCK
5LCK
18SO
CLK S-OUT
13
LM-L (CD) LM-F
12
LM-R (CD) LM-R
TAPE-L
REC-L
15
TM-L (CD) TM-F
14
TM-R (CD) TM-R
• SIGNAL PATH
: TUNER (FM/AM)
: TAPE PLAY (DECK-A)
: TAPE PLAY (DECK-B)
: REC
• R-ch is omitted due to same as L-ch.
H
SP-F, SURR (Page 24)
16
FRONT SPON/OFF SP-F
17
REAR SPON/OFF SURR
+4V
+3.3V (SUB)
6-2. BLOCK DIAGRAM – TUNER/TAPE/PANEL Section –

CX-JT8
2424
J221
R-CH
PHONES
FRONT
SPEAKER
+
–
–
+
R
L
JK503 (1/2)
R-CH
R-CH
–VL
–VP +VP
–VH
OVER LOAD
DETECT
Q505
OUTPUT LEVEL
DETECT
Q23, 24
DC DETECT
Q5, 6
BIAS
Q507, 509
HOLD
Q7 – 9
THERMAL DETECT
Q10, 11
FEED BACK
SWITCH
Q491
+
FINAL DRIVE
Q501, 503
SWITCHING
Q17, 19, 22
SWITCHING
Q18
R-CH
R-CH
+
+
+
TH501,
502
+
R-CH
R-CH
CASCADE
Q511, 513, 515
PRE DRIVE
Q517, 519
MIC AMP
IC401 (1/2)
MIC AMP
IC401 (2/2)
MUTING
Q525
+
CURRENT
MIRROR
Q521, 523
FREQUENCY
CONTROL
Q314 – 316
BASS BOOST
ON/OFF SWITCH
Q323
R-CH
+
+VL
+VH
OUTPUT LEVEL
DETECT
Q20, 21
1
14
6
9
BASS BOOST ENHANCER
IC303 (SUFFIX-11) IC303 (SUFFIX-13)
INPUT SELECTSWITCH, TONE CONTROL,
ELECTRICAL VOLUME, BASS BOOST AMP
IC301 (SUFFIX-11) IC301 (SUFFIX-13)
BASS BOOST CONTROLLER
IC310 (SUFFIX-11) IC310 (SUFFIX-13)
CTRL1 –
CTRL3
INA
VREF
7
BBE
13
GIN
I-BASS
19
SAOUT SA
MIC
OUTA
29
TOUT 25
OUT2
VR401
J401
3
DATA
4
CLOCK
LCK
S-MUTE O-POWER HOLD
CLK SO
5
LCK
35
RECB-2
12 – 10
BASS BOOST
CONTROL
Q317 – 320
BB CTRL1 –
BB CTRL4
16 – 13
40 CD-L
MD-L
2MIC
39 TUNER-L
38 TAPE-L
28 VOLIN2
MIC LEVEL
AGC
Q401
–30V
REGULATOR
Q533 – 536
(AC IN)
SUB POWER
TRANSFORMER
PT902
MAIN POWER
TRANSFORMER
PT901
RECT
D2
+VL
TO
POWER AMP
BLOCK
–VL
VL
VL
VF1
TO
FLUORESCENT
INDICATOR TUBE
VF2
RECT
D1
+VH
–VH
–VFL
EVER+10V
VH
VH
RECT
D902 – 905
+4V
REGULATOR
IC501
+3.3V (SUB)
POWER DOWN
RESET
D504
RESET SIGNAL
GENERATOR
IC502
MIC MIC MIXING
CD-L
A
D402
TUNER-L
J
TAPE-L, REC-L TAPE-L
REC-L
G
DI, SO, CLK,
MCLK, LCK
K
RESET,
POWER DOWN
C
21
DATA
22
CLOCK
D401
MIC, SA (Page 23)
E
S-MUTE, O-POWER, HOLD
B
: MIC INPUT
(Page 22)
SP-F,
SURR
H
(Page 23)
HP
F
(Page 23)
(Page 22)
(Page 23)
(Page 23)
(Page 23)
(Page 22)
(Except AEP, UK, CIS)
(Chilean, Peruvian)
AEP, UK, CIS,
Australian
AC VOLTAGE
S901
Except AEP, UK,
CIS, Australian
Except
Chilean, Peruvian
VOLTAGE
SELECTOR
RY901
RY902
RESET SWITCH
Q901
R-CH
SURROUND
SPEAKER
+
–
–
+
R
L
JK503 (2/2)
R-CH
FRONT SPEAKER
ON/OFF RELAY DRIVE
Q304
MUTING CONTROL
SWITCH
Q527
POWER OFF
MUTING DRIVER
Q529, 530
D513
VM+10V
FAN MOTOR
ON/OFF SWITCH
Q327, 328, 372, 373
RY501 RY502
SURROUND SPEAKER
ON/OFF RELAY DRIVE
Q532
M731
(FAN)
M
SP-F
SURR
: TAPE PLAY
: REC
: CD PLAY
: TUNER (FM/AM)
SIGNAL PATH
: MD (VIDEO) IN
R-ch is omitted due to same as L-ch.
R-CH
JK302
L
R
MD (VIDEO)
IN
37
BASS BOOST
CONTROL
Q492
R-CH
BUFFER
IC304
CENTER VOLATAGE
GENERATOR
Q324
VM+10V
MCLK DI
+
+4V
HOLD
Q12
OVER CURRENT
DETECT
Q13
IC304 (SUFFIX-11) IC304 (SUFFIX-13)
O-POWER
VM+9V
VM+10V RECT
D319 – 322
RECT
D301 – 304
VM
VM
VCC
DECK+9V, M+9V
+10V
REGULATOR
IC313
+9V
REGULATOR
IC308
D102
P+7V
D313 – 315
+9V
REGULATOR
IC305
+4V
REGULATOR
IC306
B+ SWITCH
Q301, 302
RELAY B++9V
+1.8V
(MP3)
+3.3V (MAIN)
+1.8V
REGULATOR
IC803
IC313 (SUFFIX-11) IC313 (SUFFIX-13)
IC308 (SUFFIX-11) IC308 (SUFFIX-13)
IC305 (SUFFIX-11) IC305 (SUFFIX-13)
IC306 (SUFFIX-11) IC306 (SUFFIX-13)
POWER ON/OFF
RELAY DRIVE
Q330, 331
6-3. BLOCK DIAGRAM – AMP/POWER SUPPLY Section –

CX-JT8
2727
CN708
C711
C712
C721
C719
C720
C718
C717
C715
C716
C714
C706
C707
R739
R740
R741
M702
M701
R738
C747 C748
R707
C705
C709
R730
C746 C708 R729
C743
C744
R725R726
R731
C754C742
C753
R760
C756
C722
FB707FB708
R720
R719
R718
R721
C830
R826
R827
R828
R825
C825
R823
R824
C829
FB808
FB701
R765 C734
C735
X701
C732
C733
C729
C811
R817
R818
C812
R819R820
FB807
FB801
FB802
C844
C856
C810
R801 R802
C837
R803
R804
R805
C813
C814
C843
C803 C805
C815
C816
R834
R833 R832
IC803
FB803
FB805
FB806
CN710
(SUFFIX-11)
(SUFFIX-13)
C802
C807
R732
C806
C817
R717
R716
C741
R728
R745
R701
R706
R708C710
R727C703
C723
R711
R703
R704
R705
C702
C701
R702
FB804
C831
C704
R709
S701
R714
R715
TP
TP
TP
TP
C713
R829
R747
R746
R713
C823
C824
R744
R807
R806
IC801
C804
C859
C858
C857 C860
R860
C835
C834
C731
Q701
R722
IC721
IC722
IC802
16P
0.1
47p
0.1
0.0047
100p
1
0.0047
150V
0.001
0.1
0.1
100
6.3V
0
6.8k
0
6.8k
0.1 220
10V
10
0.001
100
6.3V
1.2k
0.1 0.1 12k
0.047
1
680680
2.2k
47p0.1
47p
100
47p
0.1
100
100
100
100
22p
100
100
100
100
47p
100
100
47p
1M 15p
18p
16.9344MHz
0.01
0.01
220
10V
0.1
3.3k
150
1
1k1k
0.1
1
0.1
100 100
0.1
100
100
100
0.1
100
6.3V
0.1
0.01 100
6.3V
220
10V
0.1
100
100 2.2k
MM1571J
19P
0.1
100
6.3V
0
0.1
0.1
100
100
0.1
47k
100
47k
47k
10k0.047
1000.1
100
6.3V
330
15k
15k
15k
100
6.3V
0.1
15k
22p
47
6.3V
27k
100
100
0.0047
100
33
33
1k
47p
47p
100k
100
100
LC78684E-E
22p
22p
22p
22p
100p
100
0.1
220
10V
0.1
UP0411600SO
1k
LC78646E-E
BA5836FP
LC32V4265CT
-25
DRF
DRF
CD_RES
CD_RES
CD_WRQ
CD_WRQ
DO
DO
DI
DI
CL
CL
CD_CE
CD_CE
WE
RAS
A0
A1
A2
A3A4
A5
A6
A7
A8
UCAS
LCAS
I/O9
I/O10
I/O11
I/O12
I/O13
I/O14
I/O15
I/O16
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
I/O9
I/O10
I/O11
I/O12
I/O13
I/O14
I/O15
I/O16
MP3_CE
MP3_CE
FSYNC
FSYNC
A0
A1
A2
A3
A4
A5
A6
A7
A8
OE
UCAS
LCAS
WE
RAS
OE
F
GND
VC
VCC
E
C
B
NC
A
D
VC
VCC
E
D
A
B
C
F
GND
LD
VR
PD
F+
T-
T+
F-
(SLED)
(SPINDLE)
GND
SLIN
IN4
BIAS
VCC
VCC
TIN
IN3
RESET
VO3(+)
VO3(-)
VO4(-)
VO4(+)
SPIN
RESET
REG-B
REGOUT
MUTE
GND
IN2
FOIN
GND
OPOUT
VO2(-)
VO2(+)
VO1(+)
VO1(-)
IN(-)
OP
SLCIST
EFMIN
RF
RFVDD
RFVSS
FIN1
FIN2
TIN1
TIN2
VREF
REF1
FE
TEC
TE
RFMON
JITTC
ADAVDD
ADAVSS
TDO
FDO
SPDO
SLDO
GPDAC
CONT4
MP3RES
DEFECT
FSEQ
MONI1
MONI2
MONI3
MONI4
MONI5
VSS
VDD
DOUT
TEST
V/*P
SBCK/FG
LDS
FR
VVDD
PCKIST
VVSS
PDO2
PDO1
CONT2
VSS
VDD5
DRF
DO
DI
CL
CE
LIMIT SW
CD_MUTE
DATA
DATACK
LRSY
ASDFIN
ASDACK
ASLRCK
16MOUT
EFLG
C2F
XVSS
XIN
XOUT
XVDD
RVDD
RCHO
RVSS
LCHO
LVD D
FSX/16MIN
DRF
FSYNC
CL
DO
DI
3.3V
3.3V
AMUTE
CD_CE
CD_WRQ
CD_RES
D.OUT
MP3_CE
VIN
GND
CONT
VO
NOISE
VSS
I/O16
I/O15
I/O14
I/O13
VSS
I/O9
I/O10
I/O11
I/O12
NC
LCAS
UCAS
OE
A8
A7
A6
A5
A4
VSS
VCC
I/O1
I/O2
I/O3
I/O4
VCC
I/O5
I/O6
I/O7
I/O8
NC
NC
WE
RAS
NC
A0
A1
A2
A3
VCC
MADRS0
MADRS1
MADRS2
MADRS3
MADRS4
MADRS5
MADRS6
MADRS7
MADRS9
MADRS8
DVDD4
VSS
MADRS10
MADRS11
MADRS12
OEB
CASUB
CASLB
WEB
RASB
DATACK
DATAIN
RESB
INTB
CE
CL
CMDIN
CMDOUT
OVF
CNTOK
WOK
VSS
DVDD6
CRCF
FSYNC
STDAT
STCK
STREQ
VSS
DVDD5
DVDD2
VSS
MDATA0
MDATA1
MDATA2
MDATA3
MDATA4
MDATA5
MDATA6
MDATA7
DVDD3
VSS
MDATA8
MDATA9
MDATA10
MDATA11
MDATA12
MDATA13
MDATA14
MDATA15
LRSY
ADDATA
ADLRCK
C2FIN
TEST1
CKIN
VSS
CKOUT
TEST2
DVDD1
PW
SBSY
SFSY
SBCK
AVDD
VPRFR
VCOC
VPDO
AVSS
+1.8V REGULATOR
ADBCK
LVSS
*WRQ
*RES
LDD
SLCO
SBCK/CONT6
RF AMP,
SLED/SPINDLE
MOTOR DRIVE,
FOCUS/TRACKING
COIL DRIVE
AUTOMATIC
POWER
CONTROL
(LIMIT IN)
(LD)(PD)
(VC)
(FE)
(TE)
(RF)
MP3 DECODER
MEMORY
A-GND
D-GND
P+7.0V
P-GND
DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO PROCESSOR,
DIGITAL FILTER,D/ACONVERTER
FOCUS/TRACKING ERROR AMP,
R-CH
L-CH
A1
A2
6-6. SCHEMATIC DIAGRAM – BD Board – • See page 52 for IC Block Diagrams. •See page 52 for Waveforms.
The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replaceonlywith part numberspecified.
(Page 32)
(Page 38)

CX-JT8
2929
6-8. SCHEMATIC DIAGRAM – CHANGER Section – • See page 52 for IC Block Diagrams.
C741
R702 R701
D701
C751
C715
R713
R712 R711
D711
CN721
R722
R721
R723
C736
C735
C737
R731R732
C731
R734
R733
R735
CN704
E3
E2
E1
CN703
CN742 CN702
CN741
IC731
CN751 CN705
C752 R751
CN701 (SUFFIX-11)
(SUFFIX-13)
CN731
Q731
M751
M741
S751
IC701
IC712
0.01
100 470
MTZJ-T-77
5.1A
0.01
100
16V
22k
4.7k 1k
MTZJ-T-77
3.6B
2P
4.7k
4.7k
4.7k
0.1
0.1
0.1
10010k
10
50V
12k
1k
100
2P
4P
5P 5P
3P
RPI-576
2P 2P
0.1 4.7k
12P
3P
DTC114ESA
BA6956AN
BA6956AN
RNF RNF
TM-2
GND
TM-1
SENS-IN
SENS-OUT
GND
TM-1
TM-2
SENS-IN
SENS-OUT
GND
SENS-IN
SENS-OUT
GND
SENS-IN
SENS-OUT
GND GND
OPEN SW OPEN SW
LM-2
LM-1 LM-1
LM-2
GND
E-1
E-2
E-3
M+9V
GND
VCC
OUT2
GND
VREF
OUT1
VM
FIN
RIN
VCC
OUT2
GND
VREF
OUT1
VM
FIN
RIN
LM-R
LM-F
TM-R
TM-F
E-1
E-2
E-3
TBL ADDRESS SENS
OPEN SW
(LOADING)
S711
DISC TRAY
ADDRESS DETECT
(TABLE)
TABLE ADDRESS SENSOR
OPEN
CLOSE
OPEN/CLOSE
DETECT
DRIVE
LOADING MOTOR
DRIVE
TABLE MOTOR
LEVEL
SHIFT
D+3.3V
B1
B2
(Page 31)
(Page 37)

CX-JT8
3030
6-9. SCHEMATIC DIAGRAM – MAIN Board (1/4) (Suffix-11) – • See page 52 for IC Block Diagram.
D102
R101
R102
C103
R304 R303
C351
R302
R301
C102
C101
C301
R317
C321
C323
C327
C331
C333
R319
C325C319
R330
C320
C324
C337
R323
C332
C334
C328
C326
R326
C353
C303
C318
R318
D317
C304
C357
C311C312
C310
R397
C355
R396
R395
Q312
R316
C362
JR322
JR311
JR310
R328
R322
R320
Q311 Q310
JR313JR312
R321 JR325
C361
R365
C393
JK302
R327
C365
C309
CN101
IC301
C302
C366
JR300 C300
C317
R325
R324
C313
C411
C314C412
C352
C356
C354
R380
R355 R356
C342 R354 R358R399 R398
10EDB40-TB3
10k
10k
100 16V
22k 22k
1000p
4.7k
4.7k
4.7
50V
4.7
50V
10 50V
2.2k
0.022
0.022
0.0027
0.22
0.22
1k
0.0470.047
10k
0.022
0.022
10
50V
1k
0.22
0.22
0.0027
0.047
10k
470p
100
10V
10
50V
2.2k
1SS355
4.7
50V
1000
10V
10 50V
10
50V
10
50V
1k
470p
2.2k
2.2k
2SA1235F
10k
220p
0
0
0
33k
15k
1k
2SD1306 2SD1306
00
15k 0
220p
1M
0.47
50V
2P
4.7k
220p
10
50V
M61529FP
10 50V
220p
01
10
50V
10k
1k
10
16V
4.7
35V
10
16V
4.7
35V
470p
470p
1000p
470k
2.2k 2.2k
0.1 47k 22 k5.6k 5.6k
A1
A2
A4
A5
A6
A7
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
C2
C1
C3
C4
C5
CD-MUTE
CLK
CE
TUNED
ST
TUMUTE
DI
VACS/STR
DO
DI
MIC-SIG
MCLK
-VFL
11P
CLK
DI
DO
CE
TUNED
ST
TUNER-L
GND
TUNER-R
TU-MUTE
VM+9V
CLOCK
GND
SWOUT
OUT2
BB_B2
BB_A2
VOLIN2
SUR2/DPL2
SUR1/DPL1
CD-L
TUNER-L
TAPE-L
MD-L
GAME-L
RECB-2
TMI2
TMO2
TCA2
TCB2
TCC2
TOUT2
REF
MIC
CD-R
TUNER-R
TAPE-R
MD-R
GAME-R
RECB-1
TMI1
TMO1
TCA1
TCB1
TCC1
TOUT1
VOLIN1
BB-A1
BB-B1
OUT1
SAOUT
VCC
DATA
(1/4)
MUTING
CONTROL
SWITCH
MUTINGMUTING
INPUT SELECT SWITCH,
TONE CONTROL,
ELECTRICAL VOLUME,
BASS BOOST AMP
L
R
MD(VIDEO)
IN
THE ASSEMBLED
BLOCK
SUPPLIED WITH
TUNER UNIT
(COAXIAL)
AM
LOOP
ANTENNA
(Page 31)
(Page 33)
(Page 32)

CX-JT8
3131
6-10. SCHEMATIC DIAGRAM – MAIN Board (2/4) (Suffix-11) – • See page 52 for IC Block Diagram. •See page 52 forWaveforms.
R233
R425
R424
CN309
C402
C202
C201
C203
C204
C237
C244
C232
C266
C248
C267
R267
C269
R271
C273 C247
C249
C254
R284
C253
R278
R270R282
R215
C260
C258
R287R288 C259
R235
R286
R232R234
C261
C285 R285
Q228
C240 R253
R246
C221
R245R273
R269
R241 R242
D206
R251
R353
R352
R455
R406
R426
R466
D305
C392 C391 C390
R485
R430
R368
IC310
R272
R400 R401 R402 R404 R405
R412 R413
C401
R486
R418R417R416R415R419 R414
R407 R408 R409 R410
D306
R216
C250
C272
CN203
HP1
HPRE1
C234
R226 C226
C286
C233
C225
R225
C242C241
C223
Q223
Q221 Q218
Q225
Q222
R260
IC201
GA1
JR309
JR308
JR307
JR306
JR305
JR304
JR303
R307
R231
R266
C268
IC309
R420
C450
JR316
Q220Q219
L201
R268
R265
C239
R252
D205
R283
R220
CN202
22k
22k
22k
12P
0.1
1000p
1000p
1000p
1000p
150V
47 16V
47
16V
0.01
2.2
50V
0.01
4.7k
1
50V
10k
150V
2.2
50V
2.2
50V
4.7
50V
10k
100
16V
22k
10k100
4.7k
0.47 50V
4.7
50V
10k10k 22
25V
10k
10k
2.2k22k
0.47
50V
2200p 10k
2SB1116
10
50V 10k
47k
47
16V
10k10k
10k
4.7k 4.7k
1SS355
4.7
11k
11k
11k
22k
22k
22k
1SS355
100p 100p 100p
100
10k
100
BU2099FV
10k
10k 10k 10k 10k 10k
10k 10k
0.1
100
10k10k10k10k10k 10k
10k 10k 10k 10k
1SS355
4.7k
2.2
50V
150V
3P
1000p
10k 2200p
2200p
1000p
2200p
10k
0.00470.0047
0.022
100V
2SC2001
2SC3052F 2SC3052F
2SA1235F
2SC3052F
220
HA12237F
0
0
0
0
0
0
0
100
2.2k
4.7k
1
50V
BU2099FV
10k
10
50V
0
2SC3052F2SC3052F
4.7k
4.7k
0.015
22k
1SS355
10k
10k
8P
A1
A2
A4
A5
A6
A7
E1
E2
E3
19
20
21
22
23
24
18
SP-F
LINK
CD-EN
TUMUTE
S-OUT
CLK
LCK
TBL-SENSE
V-BASS
PB-EQ(R)
TAI(R)
EQOUT(R)
PB-OUT(R)
REC-IN(R)
ALC(R)
REC-OUT(R)
VCC
ALC-DET
GND
IREF
TEST
ALC(L)
REC-IN(L)
PB-OUT(L)
TAI(L)
EQOUT(L)
PB-EQ(L)
PB-NF2(L)
PB-NF1(L)
AIN(L)
RIP
BIN(L)
REC-RETURN
GND
BIN(R)
AIN(R)
PB-NF1(R)
(R)
PB-NF2
GND
LM-R
LM-F
TM-R
TM-F
TBL ADDRESS SENS
D+3.3V
M+9V
OPEN SW
SO
VDD
VSS
DATA
CLOCK
LCK
SO
VDD
VSS
DATA
CLOCK
LCK
(2/4)
(PB)
(DECK-A)
ERASE
(DECK-B)
(REC/PB/ERASE)
L-CH
R-CH
R-CH
L-CH
BIAS OSC
BIAS OSC
MUTING
MUTING MUTING
MUTING
SWITCH
REC ON/OFF
Q222,225
SWITCH
REC BIAS
NC
NC
REC-OUT
(L)
ONRECMUTE- /OFF
OFFMUTE-ON/
BA/
/HI
NOR
OFFALC-ON/
NC
NC
NC
REC/PB EQ AMP
(CHASSIS)
E-1
E-2
E-3
NC
NC
NC
NC
CTRL3
CTRL2
CTRL1
OE
NC
BB CTRL1
BB CTRL2
BB CTRL4
BB CTRL3
BASS BOOST CONTROLLER
MULTI CONTROLLER
NC
OE
REC
BIAS
A/ B
PB MUTE
REC MUTE
REAR SP
/OFF
ON
FRONT SP
TM-L(CD)
TM-R(CD)
LM-L(CD)
LM-R(CD)
TUNER
MUTE
/OFF
ON
DECK A/B SELECT SWITCH,
I-BASS
(Page
30)
(Page 33)
(Page 29)

CX-JT8
3232
6-11. SCHEMATIC DIAGRAM – MAIN Board (3/4) (Suffix-11) – • See page 52 for IC Block Diagram.
CN311
CN312
CN306
CN310
C385
R335
R493 C491
C315
R492
R491
R494 C492
C384
R495
R300
C341
C367
C396
R421
C400
R333
R334
R479 R337 R467
Q314
R362
R361
R366
R367
R480
R363
C330C316
R347
C439
C329
R364
C340
R338
R339
D311
C370
C369
JR333 C386
Q327
Q328
R392
R315 Q372
C379 C377
R359
R371
R372
R391
D372 D371
D374
C398
R461R460
D312
Q373
R433
R434
Q491
Q492
Q304
Q323
IC303
JR336
CN303
M731
R470
R393
R370
C440
JR339
JR341
C383
C382
R332
R468
R394
Q315 Q316
JR337
Q318
Q317
Q319
Q320
R336
R331
R478
R403
R340
R375
9P
19P
13P
5P
0.033
56k
100k 0.015
4.7
50V
220k
220k
220k 1
50V
0.033
22k
4.7k
47
16V
0.22
0.22
10k
22
25V
10k
8.2k
47k 1.5k 1.5k
2SK2158
22k
5.6k
270
4.7k
10k
22k
4.7
50V
4.7
50V
4.7k
4.7 100V
4.7
50V
100k
47
16V
4.7k
1k
1SS355
10 50V
10 50V
047
25V
2SA1235F
2SA953K
220
10k 2SC3052F
47
25V
4.7
50V
470k
4.7k
4.7k
47k
1SS355 1SS355
1SS355
10
50V
2.2k2.2k
UDZSTE-1713B
2SC2001LK
680
2W
680
2W
2SC3052F
2SK2158
2SA953K
2SC3052
NJM2156
0
3P
3.3k
10k
10k
4.7
100V
0
0
3300p
3300p
47k
82k
10
2SK2158 2SK2158
0
2SK2158
2SK2158
2SK2158
2SK2158
27k
3.3k
2.2k
820
5.6k
4.7k
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
ZZ1
ZZ2
ZZ3
ZZ4
ZZ5
ZZ6
ZZ7
ZZ8
ZZ1
ZZ2
ZZ3
ZZ4
ZZ5
ZZ6
ZZ7
ZZ8
CD-MUTE
V-BASS
18 19 20
HP
21
22
23
24
SP-F
LINK
HP CTL
D GND
R-OUT
HP-GND
L-OUT
FAN+
FAN-
FAN+
L-OUT
SP-GND
R-OUT
VM(AC)
VM(AC)
VCC
LINK/MATRIX
P-GND
L-CH
A-GND
PW-GND
A-GND
RELAY B+
P+7.0V
CD DRF
GND
GOUT
GIN
VREF
OUTB
LOUTB
LINB
HOUTB
HINB
INB
HOUTA
HINA
INA
LINA
LOUTA
OUTA
BBE
LPOUT
LPIN
V+
(3/4)
SWITCH
FEED BACK
BASS BOOST
CONTROL
Q327,328,372,373
FAN MOTOR ON/OFF SWITCH
ON/OFF
SPEAKER
FRONT
BASS BOOST
CONTROL
Q317-320
BASS BOOST ON/OFF SWITCH
BASS BOOST
ENHANCER
Q314-316
FERQUENCY
CONTROL
UNREG VM
IN-L
IN-R
(FAN)
D-GND
AMUTE
D.OUT
3.3V
3.3V
CD_RES
DI
DO
CL
MP3_CE
FSYNC
CD_WRQ
DRF
CD_CE
LC78646 CE
LC78646 WRQ
LC78684 SYNC
LC78646/LC78684 CLK
LC78646/LC78684 DO
LC78646/LC78684 DI
LC78646 RESET
R-CH
LC78684 CE(MP3)
RELAY
DRIVE
The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replaceonly with partnumber specified.
(Page 33)
(Page 30)
(Page
42)
(Page
45)
(Page
27)
(Page
47)

CX-JT8
3333
6-12. SCHEMATIC DIAGRAM – MAIN Board (4/4) (Suffix-11) –
R484
CN304
D315 D313
CN307
R346
R387
C397
R386
R388
C345
C372
D364
R431
R379
D314
R482 R481
C399
C419C418
D321 D322
C375
C374C373
D301 D302
C380 C381
D304D303
C420 C421
R378
D319 D320
R483
R314
C363
IC304
R313
R432
C339
C364
D307
C371
JR334
R487
R488
IC305 IC306 IC308 IC313
C417
D308
Q331
Q330
D316
Q324
R348 R384
JR321
JR328
JR326
JR317
R309
Q301
Q302
R310
R427 R428
JR302
10k
31P
10EDB40-TB3 10EDB40-TB3
13P
22k
12k
100
10V
10k
1k
100
16V
10
50V
1SS355
150k
2.2k
10EDB40-TB3
4.7k 4.7k
470
16V
0.010.01
10EDB40-TB3 10EDB40-TB3
2200
25V
0.010.01
10EDB40-TB3 10EDB40-TB3
470
16V
47
16V
10EDB40-TB310EDB40-TB3
2200
25V
220
16V
10k
10EDB40-TB3 10EDB40-TB3
1k
100k
10
50V
NJM4565M
100k
100
220
16V
10
50V
1SS355
47
16V
0
0
0
TA7809S TA7809S TA7810S
1000
10V
0
2SA1235F
2SC3052F
10EDB40-TB3
2SC3052F
01k
0
0
0
0
0
2SA1980G
2SC3052F
0
00
0
C2
C1
C3
C4
C5
E1
E2
E3
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
MIC-S
MIC-SIG
FIL2
FIL1
-VFL
EVER+10V
MIC+10V
+4V
ST
TUNED
CE
DO
DI
CLK
MCLK
LCK
TBL-SENSE
CD-EN
S-MUTE
VACS/STR
DECK+9V
HOLD
O-POWER
S-OUT
MIC10V
HP
MIC-S
O-POWER
HOLD
S-MUTE
FIL1
FIL2
EVER+10V
-VFL
O-POWER
DECK+9V
O-POWER
+4V
SYSTEM MUTE
DC-DET
VM+10V
HOLD
SW OUT
-VFL
VSTBY
FIL-2
FIL-1
SW LIMIT
P-0N
D-GND
-VFL
EVER 10V
MIC 10V
4V(SW)
BU1924 CLK
BU1924 DATA
TUNER STEREO
LC72121 CE
LC72121 DI
M61529 CLK
BU2099FB LCK
POWER RELAY
PROTECTOR (HOLDER)
STREAM IN(VACS)
SYSTEM MUTE
S-OUT
MIC GND
(4/4)
VF1
VF2
TUNER TUNED
LC72121/M61529/BU2099FV DO
LC72121/BU2099FV CLK
CD NUMBER SENS
BU UP DOWN/CD OPEN CLOSE
NC
TUNER S-METER
DECK 9V
MIC SIG
HP
A-GND
SW ON/OFF SENS
O-POWER
IO
G
IO
G
IO
G
IO
G
+9V REGULATOR +9V REGULATOR +10V REGULATOR+4V REGULATOR
Q330,331
POWER ON/OFF
RELAY DRIVE
Q301,302
B+ SWITCH
CENTER
VOLTAGE
GENERATOR
BUFFER
VCC
GND
µPC3504HF
(Page 32)
(Page 30) (Page 31)
(Page 47)
(Page 42)

CX-JT8
3636
D102
R101
R102
C103
R304 R303
C351
R302
R301
C102
C101
C301
R317
C321
C323
C327
C331
C333
R319
C325C319
R330
C320
C324
C337
R323
C332
C334
C328
C326
R326
C353
C303
C318
R318
D317
C304
C357
C311C312
C310
R397
C355
R396
R395
Q312
R316
C362
JR322
JR311
JR310
R328
R322
R320
Q311 Q310
JR313JR312
R321 JR325
C361
R365
C393
JK302
JR124
C432 C434
R327
C365
C309
C435
C433
C431
CN101
IC301
C302
C366
JR300 C300
C317
R325
R324
C436
C313
C411
C314C412
C108
C352
C442 C425
C356
R329
C354
R380
R355 R356
C342 R354
C428
R399 R398 R358
C430JR314
10EDB40-TB3
10k
10k
100 16V
22k 22k
1000p
4.7k
4.7k
4.7
50V
4.7
50V
10 50V
2.2k
0.022
0.022
0.0027
0.22
0.22
1k
0.0470.047
10k
0.022
0.022
10
50V
1k
0.22
0.22
0.0027
0.047
10k
470p
100
10V
10
50V
2.2k
1SS355
4.7
50V
1000
10V
10 50V
10
50V
10
50V
1k
470p
2.2k
2.2k
2SA1235F
10k
220p
0
0
0
33k
15k
1k
2SD1306 2SD1306
00
15k 0
220p
1M
0.47
50V
2P
0
10p 10p
4.7k
220p
10
50V
10p
10p
10p
M61529FP
10 50V
220p
01
10
50V
10k
1k
10p
10
16V
4.7
35V
10
16V
4.7
35V
0.01
470p
0.1 470p
470p
0
1000p
470k
2.2k 2.2k
0.1 47k
0.01
22k
0.010
A1
A2
A3
A4
A5
A6
A7
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
C2
C1
C3
C4
C5
CD-MUTE
RCLK
RDATA
CLK
CE
TUNED
ST
TUMUTE
DI
VACS/STR
DO
DI
MIC-SIG
MCLK
-VFL
∗
∗∗
CLK
DI
DO
CE
TUNED
ST
TUNER-L
GND
TUNER-R
TU-MUTE
FM SIGNAL OUT
RDS INT
RDS DATA
+3.3V
VM+9V
CLOCK
GND
SWOUT
OUT2
BB_B2
BB_A2
VOLIN2
SUR2/DPL2
SUR1/DPL1
CD-L
TUNER-L
TAPE-L
MD-L
GAME-L
RECB-2
TMI2
TMO2
TCA2
TCB2
TCC2
TOUT2
REF
MIC
CD-R
TUNER-R
TAPE-R
MD-R
GAME-R
RECB-1
TMI1
TMO1
TCA1
TCB1
TCC1
TOUT1
VOLIN1
BB-A1
BB-B1
OUT1
SAOUT
VCC
DATA
(1/4)
MUTING
CONTROL
SWITCH
MUTINGMUTING
INPUT SELECT SWITCH,
TONE CONTROL,
ELECTRICAL VOLUME,
BASS BOOST AMP
(AEP,UK)
(AEP,UK)
(AEP,UK)
15P
11P
(AEP,UK)
(EXCEPT AEP,UK)
∗
CN101
L
R
MD(VIDEO)
IN
THE ASSEMBLED
BLOCK
SUPPLIED WITH
TUNER UNIT
(COAXIAL)
AM
LOOP
ANTENNA
(AEP,UK,CIS)
(AEP,UK,CIS)
(E,E51,SP,AUS)
(AEP,UK,CIS)
(AEP,UK,CIS)
∗ R398,399
5.6k
10k (AEP,UK,CIS)
(E,E51,SP,AUS)
(AEP,UK,CIS)
(E,E51,SP,AUS)
6-15. SCHEMATIC DIAGRAM – MAIN Board (1/4) (Suffix-13) – • See page 52 for IC Block Diagram.
(Page 37)
(Page 39)
(Page 38)

CX-JT8
3737
R233
R425
R424
CN309
C402
C202
C201
C203
C204
C237
C244
C232
C266
C248
C267
R267
C269
R271
C273 C247
C249
C254
R284
C253
R278
R270R282
R215
C260
C258
R287R288 C259
R235
R286
R232R234
C261
C285 R285
Q228
C240 R253
R246
C221
R245R273
R269
R241 R242
D206
R251
R353
R352
R455
R406
R426
R466
D305
C392 C391 C390
R485
R430
R368
IC310
R272
R400 R401 R402 R404 R405
R412 R413
C401
R486
R418R417R416R415R419 R414
R407 R408 R409 R410
D306
R216
C250
C272
CN203
HP1
HPRE1
D101
C234
R226 C226
C286
C233
C225
R225
C242C241
C223
Q223
Q221 Q218
Q225
Q222
R260
IC201
GA1
JR309
JR308
JR307
JR306
JR305
JR304
JR303
R307
R231
R266
C268
IC309
R420
C450
JR316
Q220Q219
L201
R268
R265
C239
R252
D205
R283
R220
CN202
D324
22k
22k
22k
12P
0.1
1000p
1000p
1000p
1000p
150V
47 16V
47
16V
0.01
2.2
50V
0.01
4.7k
1
50V
10k
150V 2.2
50V
2.2
50V
4.7
50V
10k
100
16V
22k
10k100
4.7k
0.47 50V
4.7
50V
10k10k 22
25V
10k
10k
2.2k22k
0.47
50V
2200p 10k
2SB1116
10
50V 10k
47k
47
16V
10k10k
10k
4.7k 4.7k
1SS355
4.7
11k
11k
11k
22k
22k
22k
1SS355
100p 100p 100p
100
10k
100
BU2099FV
10k
10k 10k 10k 10k 10k
10k 10k
0.1
100
10k10k10k10k10k 10k
10k 10k 10k 10k
1SS355
4.7k
2.2
50V
150V
3P
1SS355
1000p
10k 2200p
2200p
1000p
2200p
10k
0.00470.0047
0.022
100V
2SC2001
2SC3052F 2SC3052F
2SA1235F
2SC3052F
220
HA12237F
0
0
0
0
0
0
0
100
2.2k
4.7k
1
50V
BU2099FV
10k
10
50V
0
2SC3052F2SC3052F
4.7k
4.7k
0.015
22k
1SS355
10k
10k
8P
1SS355
A1
A2
A3
A4
A5
A6
A7
E1
E2
E3
19
20
21
22
23
24
18
SP-F
LINK
CD-EN
TUMUTE
S-OUT
CLK
LCK
TBL-SENSE
V-BASS
PB-EQ(R)
TAI(R)
EQOUT(R)
PB-OUT(R)
REC-IN(R)
ALC(R)
REC-OUT(R)
VCC
ALC-DET
GND
IREF
TEST
ALC(L)
REC-IN(L)
PB-OUT(L)
TAI(L)
EQOUT(L)
PB-EQ(L)
PB-NF2(L)
PB-NF1(L)
AIN(L)
RIP
BIN(L)
REC-RETURN
GND
BIN(R)
AIN(R)
PB-NF1(R)
(R)
PB-NF2
GND
LM-R
LM-F
TM-R
TM-F
TBL ADDRESS SENS
D+3.3V
M+9V
OPEN SW
SO
VDD
VSS
DATA
CLOCK
LCK
SO
VDD
VSS
DATA
CLOCK
LCK
(2/4)
(PB)
(DECK-A)
ERASE
(DECK-B)
(REC/PB/ERASE)
L-CH
R-CH
R-CH
L-CH
(AEP,UK)
BIAS OSC
BIAS OSC
MUTING
MUTING MUTING
MUTING
SWITCH
REC ON/OFF
Q222,225
SWITCH
REC BIAS
NC
NC
REC-OUT
(L)
ONRECMUTE- /OFF
OFFMUTE-ON/
BA/
/HI
NOR
OFFALC-ON/
NC
NC
NC
REC/PB EQ AMP
(CHASSIS)
E-1
E-2
E-3
NC
NC
NC
NC
CTRL3
CTRL2
CTRL1
OE
NC
BB CTRL1
BB CTRL2
BB CTRL4
BB CTRL3
BASS BOOST CONTROLLER
MULTI CONTROLLER
NC
OE
REC
BIAS
A/ B
PB MUTE
REC MUTE
REAR SP
/OFF
ON
FRONT SP
TM-L(CD)
TM-R(CD)
LM-L(CD)
LM-R(CD)
TUNER
MUTE
/OFF
ON
DECK A/B SELECT SWITCH,
I-BASS
B2
6-16. SCHEMATIC DIAGRAM – MAIN Board (2/4) (Suffix-13) – • See page 52 for IC Block Diagram. •See page 52 forWaveforms.
(Page 29)
(Page
36)
(Page 39)

CX-JT8
3838
6-17. SCHEMATIC DIAGRAM – MAIN Board (3/4) (Suffix-13) – • See page 52 for IC Block Diagram.
The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replaceonly with partnumber specified.
CN311
CN312
CN306
CN310
C385
R335
R493 C491
C315
R492
R491
R494 C492
C384
R495
R300
C341
C367
C396
R421
C400
R333
R334
R479 R337 R467
Q314
R362
R361
R366
R367
R480
R363
C330C316
R347
C439
C329
R364
C340
R338
R339
D311
C370
C369
JR333 C386
Q327
Q328
R392
R315 Q372
C379 C377
R359
R371
R372
R391
D372 D371
D374
C398
R461R460
D312
Q373
R433
R434
Q491
Q492
Q304
Q323
IC303
JR336
CN303
M731
R470
R393
R370
C440
JR339
JR341
C383
C382
R332
R468
R394
C448
JR343
R299
R390
R498
R499
C447
C358
R341
Q315 Q316
JR337
R375
R340 R403
R478
R331
Q318
Q317
Q319
Q320
R336
9P
19P
13P
5P
0.033
56k
100k 0.015
4.7
50V
220k
220k
220k 1
50V
0.033
22k
4.7k
47
16V
0.22
0.22
10k
22
25V
10k
8.2k
47k 1.5k 1.5k
2SK2158
22k
5.6k
270
4.7k
10k
22k
4.7
50V
4.7
50V
4.7k
4.7 100V
4.7
50V
100k
47
16V
4.7k
1k
1SS355
10 50V
10 50V
047
25V
2SA1235F
2SA953K
220
10k 2SC3052F
47
25V
4.7
50V
470k
4.7k
4.7k
47k
1SS355 1SS355
1SS355
10
50V
2.2k2.2k
UDZSTE-1713B
2SC2001LK
680
2W
680
2W
2SC3052F
2SK2158
2SA953K
2SC3052
NJM2156
0
3P
3.3k
10k
10k
4.7
100V
0
0
3300p
3300p
47k
82k
10
0.1
0
10k
10k
10k
10k
47p
1000p
10k
2SK2158 2SK2158
0
2.2k
2SK2158
2SK2158
2SK2158
2SK2158
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
ZZ1
ZZ2
ZZ3
ZZ4
ZZ5
ZZ6
ZZ7
ZZ8
ZZ1
ZZ2
ZZ3
ZZ4
ZZ5
ZZ6
ZZ7
ZZ8
CD-MUTE
V-BASS
18 19 20
HP
21
22
23
24
SP-F
LINK
∗
∗
∗
HP CTL
D GND
R-OUT
HP-GND
L-OUT
FAN+
FAN-
FAN+
L-OUT
SP-GND
R-OUT
VM(AC)
VM(AC)
VCC
LINK/MATRIX
P-GND
L-CH
A-GND
PW-GND
A-GND
RELAY B+
P+7.0V
CD DRF
GND
GOUT
GIN
VREF
OUTB
LOUTB
LINB
HOUTB
HINB
INB
HOUTA
HINA
INA
LINA
LOUTA
OUTA
BBE
LPOUT
LPIN
V+
(3/4)
SWITCH
FEED BACK
BASS BOOST
CONTROL
Q327,328,372,373
FAN MOTOR ON/OFF SWITCH
ON/OFF
SPEAKER
FRONT
BASS BOOST
CONTROL
Q317-320
BASS BOOST ON/OFF SWITCH
BASS BOOST
ENHANCER
Q314-316
FERQUENCY
CONTROL
UNREG VM
IN-L
IN-R
(FAN)
D-GND
AMUTE
D.OUT
3.3V
3.3V
CD_RES
DI
DO
CL
MP3_CE
FSYNC
CD_WRQ
DRF
CD_CE
LC78646 CE
LC78646 WRQ
LC78684 SYNC
LC78646/LC78684 CLK
LC78646/LC78684 DO
LC78646/LC78684 DI
LC78646 RESET
R-CH
LC78684 CE(MP3)
RELAY
DRIVE
∗
10k (AEP,UK,CIS)
∗
5.6k
10k (AEP,UK,CIS)
R375
4.7k
R340
(AEP,UK,CIS)
820
1.5k
(E,E51,SP,AUS)
(E,E51,SP,AUS)
∗
(AEP,UK,CIS)
R331
1.5k
3.3k(E,E51,SP,AUS)
(E,E51,SP,AUS)(E,E51,SP,AUS)
(AEP,UK,CIS)18k
27k (E,E51,SP,AUS)
D2
A2
E2
C2
(Page
27)
(Page 36)
(Page 39)
(Page
42)
(Page
45)
(Page
47)

CX-JT8
3939
6-18. SCHEMATIC DIAGRAM – MAIN Board (4/4) (Suffix-13) –
R484
CN304
D315 D313
CN307
R346
R387
C397
R386
R388
C345
C372
D364
R431
R379
D314
R482 R481
C399
C419C418
D321 D322
C375
C374C373
D301 D302
C380 C381
D304D303
C420 C421
R378
D319 D320
R483
R314
C363
IC304
R313
R432
C339
C364
D307
C371
JR334
R427 R428
R487
R488
IC305 IC306 IC308 IC313
C417
D308
Q331
Q330
D316
Q324
R348 R384
JR321
JR328
JR326
JR317
R309
C437
C438
Q301
Q302
R310
D318
D323
10k
31P
10EDB40-TB3 10EDB40-TB3
13P
22k
12k
100
10V
10k
1k
100
16V
10
50V
1SS355
150k
2.2k
10EDB40-TB3
4.7k 4.7k
470
16V
0.010.01
10EDB40-TB3 10EDB40-TB3
2200
25V
0.010.01
10EDB40-TB3 10EDB40-TB3
470
16V
47
16V
10EDB40-TB310EDB40-TB3
2200
25V
220
16V
10k
10EDB40-TB3 10EDB40-TB3
1k
100k
10
50V
NJM4565M
100k
100
220
16V
10
50V
1SS355
47
16V
0
00
0
0
TA7809S TA7809S TA7810S
1000
10V
0
2SA1235F
2SC3052F
10EDB40-TB3
2SC3052F
01k
0
0
0
0
0
220p
220p
2SA1980G
2SC3052F
0
C2
C1
C3
C4
C5
E1
E2
E3
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
MIC-S
MIC-SIG
FIL2
FIL1
-VFL
EVER+10V
MIC+10V
+4V
RCLK
RDATA
ST
TUNED
CE
DO
DI
CLK
MCLK
LCK
TBL-SENSE
CD-EN
S-MUTE
VACS/STR
DECK+9V
HOLD
O-POWER
S-OUT
MIC10V
HP
MIC-S
O-POWER
HOLD
S-MUTE
FIL1
FIL2
EVER+10V
-VFL
O-POWER
DECK+9V
O-POWER
+4V
SYSTEM MUTE
DC-DET
VM+10V
HOLD
SW OUT
-VFL
VSTBY
FIL-2
FIL-1
SW LIMIT
P-0N
D-GND
-VFL
EVER 10V
MIC 10V
4V(SW)
BU1924 CLK
BU1924 DATA
TUNER STEREO
LC72121 CE
LC72121 DI
M61529 CLK
BU2099FB LCK
POWER RELAY
PROTECTOR (HOLDER)
STREAM IN(VACS)
SYSTEM MUTE
S-OUT
MIC GND
(4/4)
VF1
VF2
TUNER TUNED
LC72121/M61529/BU2099FV DO
LC72121/BU2099FV CLK
CD NUMBER SENS
BU UP DOWN/CD OPEN CLOSE
NC
TUNER S-METER
DECK 9V
MIC SIG
HP
A-GND
SW ON/OFF SENS
O-POWER
IO
G
IO
G
IO
G
IO
G
+9V REGULATOR +9V REGULATOR +10V REGULATOR+4V REGULATOR
Q330,331
POWER ON/OFF
RELAY DRIVE
Q301,302
B+ SWITCH
CENTER
VOLTAGE
GENERATOR
(AEP,UK)
BUFFER
(AEP,UK)
VCC
GND
(E,E51,SP,AUS)
µPC3504HF
G2
F2
(Page 36) (Page 37)
(Page 38)
(Page 47)
(Page 42)

CX-JT8
4242
6-21. SCHEMATIC DIAGRAM – POWER Board (1/2) –
R110
R109
R108
R107
R106
R105
R104
R103
EP01
R12
R14
R13
R563 R564 R567 R568
R580
C531
D13
R16
R6 R7 R8 R9
D12
R17
R10 R11
R28
R18
C22 R21
D17D16
R23
R22
C23
R20R19
C24
R39 R38
R40
R581
R33
C33
R99
R86
R93
C37
D23
D29
C40
Q20
R82
R85
R92
C35
D24
C41
R58 R78 R79R74
R72
D34
D33
Q22
R59
C42 C43
R70
R56
R55
R60
D35
R75
D38
R54
R36
R37
R34
D32
C45
R26
C30
R64
R27
D31
R62
R61
R94
C31
R63
R52
R51
R50
R49 R48
R47 R46
R45
C6 C5
C19
D19
R71
CN1
CN502
D40 D39
D514
R83
CN501
JW3
D515
Q536
Q533 Q534 Q535
C8 C7
C15 C14
C11
C18
R31
R100
R29
R81
D30
Q17
Q19
D42
Q18
Q24Q23
R77
D36
D37
D25
C38
R76
R96
R42R41R43
R69
Q21
R95
R32
R35
Q6Q5
R4
D11
Q9Q8Q7
D18
Q11 Q10
R53
C34
R98 R97R91
D2
C12
D1
R73
R44
R102
D41
82k
82k
82k
82k
82k
82k
82k
82k
10k
6.8k
2.2k
4.7k 4.7k 4.7k 4.7k
10
100
10V
MC2838
1k
56k 56k 56k 56k
MC2836
1k
1k 1k
1k
100
1
50V 15k
MC2836MC2838
33k
33k
0.22
50V
10k15k
47 25V
100k 10k
10k
100k
10k
47
50V
3.3k
3.3k
3.3k
47
63V 1SS355TE-17
1SS355TE-17
330p
2SD814A(RS)
15k
2.2k
3.3k
0.068
1SS355TE-17
47 50V
330 33k 5.6k47k
4.7k
1SS355TE
-17
1SS355TE
-17
2SB792A(RS)
270
22p 330p
15k
1.8k
1.5k
2.7k
1SS355TE
-17
2.2k
1SS355TE
-17
15k
10k
82k
82k
1SS355TE
-17
330p
3.3k
330p
3.3k
10k
1SS355TE
-17
10k
3.3k
10k
330p
10k
47k
1.5k
10k
220k 220k
22k 47k
47k
0.1 0.1
0.1
100V
MC2836
10k
12P
13P
1SS355TE
-17
1SS355TE
-17
1SS355TE
-17
4.7k
13P
UDZ-30B
2SA1235F
2SA1980G 2SA1980G 2SA1980G
0.1 0.1
3300 80V 3300 80V
4700
35V
0.1
100V
0
3.3
3.3
15k
UDZ-16B
2SA1235F
2SK3053
FMB-G16L
2SK3053
2SA1235F2SA1235F
3.3k
1SS355TE
-17
1SS355TE
-17
UDZ-18B
330p
3.3k
4.7k
3.3k3.3k3.3k
10k
2SC3052F
22k
33k
33k
2SC3052F2SA1235F
4.7k
1SS355TE-17
2SC3052F2SC3052F2SC3052F
MC2838
SRA2202S 2SB792A
(RS)
3.3k
47
63V
2.2k 2.2k120
G5SBA60L
-6088
4700
35V
D10XB20
82k
82k
FMB-G16L
A1
A2
A3
A4
A5
A7
A8
A9
A10
A11
A12
A13
FIL-1
FIL-2
STBY
MUTE
VCC
VM
-VFL
SURR
HOLD
-VH
+VH
-VL
FIL-2
FIL-1
O-POWER
P-ON
RYB+
HOLD
O-POWER
-VFL
+VH
P-ON
STBY
VSTBY
O-POWER
SW ON/OFF SENS
SYSTEM MUTE
FIL-1
FIL-2
-VFL
HOLD
P-ON
L-OUT
SP-GND
R-OUT
VM(AC)
VM(AC)
VCC
LINK/MATRIX
IN-R
IN-L
UNREG VM
RELAY B+
VH(AC)
VL(AC)
GND(M)
VL(AC)
VH(AC)
VM(AC)
VM(AC)
FIL-1
FIL-2
P-ON
EVER 10V
NC
(CHASSIS)
(1/2)
A-GND
PW-GND
DC-DET
SW OUT
SW LIMIT
Q533-536
-30V REGULATOR
SWITCHING
SWITCHING
Q17,19,22
Q23,24
DETECT
LEVEL
OUTPUT
Q5,6
DC DETECT
DETECT
Q20,21
OUTPUT LEVEL
Q7-9
HOLD
Q10,11
THERMAL DETECT
1
23
4
4
3
1
2
VM+10V
(AEP,UK,CIS,E51)
(E,SP,AUS)
2.7k
(SUFFIX-11)
(SUFFIX-13)
(SUFFIX-11)
(SUFFIX-13)
G2
C1
C2
G1
(Page 43)
(Page 38)
(Page 33)
(Page 50)
(Page 51)
(Page 39)
(Page 32)

CX-JT8
4343
6-22. SCHEMATIC DIAGRAM – POWER Board (2/2) –
The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replaceonly with partnumber specified.
C534
C535
EP502
R66
C26
R65R520R526
R67
D20
C25
R68
R578
R577 D513 R575
R594
R593
C529
R576
R536 R534
R90
R510
R512
R532C510 R528
Q514
Q512 R518
D506
R522
R524 R516
C504
Q506
R506
C502
TH502
C512
D502
D504
R546
R560 R554C520
R591 R562
R592
R558
R561
C530
R569 R557
C519 R553
EP501
C532
C533R544
R542
C508 C506
R540
Q520
R533 R525
R514
R505
C501
R509
R517
C505C507
D505
Q515
D507
R521
R523
R531C509
R539
R541
D510
C511
R543
Q519
R547
R559
R535
C513
R545
C538
R599
R500
R513
R511
C523
D511
R571 R570
C503
R515
Q511
Q513
R519
D503
D501
R537
R529
TH501
L502L501
D509
D512
R588
RY502
Q532
C543
C541 C542
C544 C527
C525 C524
C526
R582R572R579R573R604R602R603R601R574
C540
Q527
Q521
R530
R538
Q508
Q510
R548
D508
Q518 Q516
Q522Q524 Q13
R508
Q504
Q502
R502
R504
Q530
Q529
Q505
R507
Q507
Q509
R501
R503
Q503
Q501
Q517
Q523
R527
JW16
JW15
JW9 JW10
RY501
R589
JW551
JW552
Q525
Q526
C514
JK503(1/2)
JK503(2/2)
C521
C517
R555
R549
R596
R598
R597
R595
R556
C518
R550
C522
Q12
R587
R586
0.1
0.1
10k
4700p
10k391k
47k
MC2838
2200p
10k
220
4.7k 1SS355TE-17 4.7k
10k
10k
2.2
50V
22k
100 100
10k
2.7k
1k
1.5k820p 47k
2SC3478
LK
2SC3478
LK 39
1SS244
1.8k
2.2k 220
0.1
2SB792A(RS)
100
0.01
33 35V
MC2836
MC2838
100
3.9k 27k820p
47k 1M
15k
1k
68k
0.1
470k 1k
820p 27k
2200p
2200p2.2k
2.2k
100p
100V
100p
100V
10k
2SB792A(RS)
100 1k
6.8k
100
0.01
2.7k
39
100p
100V
100p
100V
1SS244
2SD814A(RS)
1SS355TE
-17
1.8k
2.2k
1.5k820p
10k
2.2k
MC2836
33
35V
2.2k
2SB792A(RS)
27k
3.9k
100
22
50V
100
0.33
47k
4.7k
6.8k
1k
0.1
1SS355TE-17
10
1/2W
10
1/2W
0.1
220
2SC3478
LK
2SC3478
LK
39
MC2838
MC2836
1k
4.7k
MC2838
1SS355TE-17
1k
2SC3052
0.1
0.1 0.1
0.1 0.1
0.1 0.1
0.1
1818181818181818220
10
16V
2SA1235F
2SC3052F
4.7k
1k
2SC3052F
2SC3052F
27k
1SS355TE
-17
2SB792A(RS) 2SD814A(RS)
2SC3052F2SC3052F 2SB792A(RS)
1.2k
2SB1649
2SD2562
0.22
3W
0.22
3W
2SA1235F
2SC3052F
2SB792A(RS)
1.2k
2SC3052F
2SC3052F
0.22
3W
0.22
3W
2SB1649
2SD2562
2SB792A(RS)
2SC3052F
47k
4.7k
2SC3624A
-T1L15
2SC3624A
-T1L15
22
50V
8P
8P
0.47
1W
0.47
1W
0.47
1W
0.47
1W
2SC3143
K4/K5
220
220
A1
A2
A3
A4
A5
A7
A8
A9
A10
A11
A12
A13
-VL
-VH
MUTE
VCC
HOLD
+VH
RYB+
SURR
VM
∗∗
∗
∗
∗
∗
∗
∗
(CHASSIS)
(CHASSIS)
(2/2)
-1 -2
-1-2SPEAKER
SURROUND
ON/OFF
RELAY DRIVE
SPEAKER
SURROUND
L
R
SPEAKER
L
R
FRONT
MUTING
MUTING
CONTROL
SWITCH
MUTING
Q508,510
BIAS
Q518,520
PRE DRIVE
Q522,524
CURRENT
MIRROR
Q512,514,516
CASCADE
OVER CURRENT
DETECT
HOLD
DETECT
OVER LOAD
Q502,504
FINAL
DRIVE
Q529,530
POWER OFF
MUTING DRIVER
DETECT
OVER LOAD
FINAL
DRIVE
Q501,503
BIAS
Q507,509
CASCADE
Q511,513,515
CURRENT
MIRROR
Q521,523
PRE DRIVE
Q517,519
(AEP,UK,CIS)
∗
C517,518
(E,E51,SP,AUS)
0.22 50V
0.47 50V
(AEP,UK,CIS)
∗
(E,E51,SP,AUS)
0.47 50V
(AEP,UK,CIS)
∗
(E,E51,SP,AUS)
C521,522
R555,556
4.7 50V
47k
100k
(AEP,UK,CIS)
∗
(E,E51,SP,AUS)
R549,550
390
470
(Page
42)