Sony MDX-C5960R User manual

MICROFILM
SERVICE MANUAL German Model
MDX-C5960R
US Model
Canadian Model
E Model
MDX-C5970
AEP Model
UK Model
MDX-C5970R
SPECIFICATIONS
MDX-C5960R/C5970/C5970R
Photo: MDX-C5960R
Model Name Using Similar Mechanism MDX-C7900/C7900R
Base Mechanism Type MG-164N-138
Optical Pick-Up Name KMS-241B/J1NP
FM/AM (MW/LW) MINIDISC PLAYER
– Continued on next page –

– 2 –
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK !OR DOTTED
LINE WITH MARK !ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
Never look into the laser diode emission from right avove when
checking it for adustment. It is feared that you will lose your sight.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
(KMS-241B/J1NP).
The laser diode in the optical pick-up block may suffer electro-
static break-down easily. When handling it, perform soldering
bridge to the laser-tap on the flexible board.Also perform m easures
against electrostatic break-down sufficiently before the operation.
The flexible board is easily damaged and should be handled with
care.
laser-tap
OPTICAL PICK-UP FLEXIBLE BOARD
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE !
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

– 3 –
1. GENERAL
Location of controls ........................................................ 4
Resetting the unit ............................................................ 5
Detaching the front panel................................................ 5
Labelling the rotary commander..................................... 5
Using the rotary commander .......................................... 5
Adjusting the sound characterisitics............................... 5
Attenuating the sound ..................................................... 5
Changing the sound and display settings ....................... 5
Boosting the bass sound.................................................. 5
Installation....................................................................... 6
Connections..................................................................... 7
2. DISASSEMBLY ......................................................... 10
3. ELECTRICAL ADJUSTMENTS......................... 16
Test Mode ........................................................................ 16
MD Section ..................................................................... 16
Tuner Section .................................................................. 16
4. DIAGRAMS
4-1. Block Diagram – SERVO Section – ............................... 19
4-2. Block Diagram – TUNER Section – .............................. 21
4-3. Block Diagram – MAIN Section – ................................. 23
4-4. Block Diagram
– DISPLAY/KEY CONTROL Section –........................ 25
4-5. Block Diagram – BUS CONTROL/
POWER SUPPLY Section – ........................................... 27
4-6. Notes for Printed Wiring Boards and
Schematic Diagrams ....................................................... 29
4-7. Printed Wiring Board – SERVO Board – ....................... 31
4-8. Schematic Diagram – SERVO Board (1/3) – ................. 33
4-9. Schematic Diagram – SERVO Board (2/3) – ................. 35
4-10. Schematic Diagram – SERVO Board (3/3) – ................. 37
4-11. Printed Wiring Board
– MAIN Board (Component Side) – .............................. 39
4-12. Printed Wiring Board
– MAIN Board (Conductor Side) – ................................ 41
4-13. Schematic Diagram – MAIN Board (1/4) – ................... 43
4-14. Schematic Diagram – MAIN Board (2/4) – ................... 45
4-15. Schematic Diagram – MAIN Board (3/4) – ................... 47
4-16. Schematic Diagram – MAIN Board (4/4) – ................... 49
4-17. Printed Wiring Board – KEY Board –............................ 51
4-18. Schematic Diagram – KEY Board – .............................. 53
4-19. IC Pin Function Description ........................................... 62
5. EXPLODED VIEWS................................................ 72
6. ELECTRICAL PARTS LIST ............................... 76
TABLE OF CONTENTS

– 4 –
SECTION 1
GENERAL This section is extracted from
instruction manual.

– 5 –

– 6 –

– 7 –

– 8 –

– 9 –

– 10 –
SECTION 2
DISASSEMBLY
SUB PANEL
Note: Follow the disassembly procedure in the numerical order given.
1 five screws
(PTT2.6
× 6)
1 screw
(PTT2.6
× 6)
2 sub panel
MECHANISM DECK (MG-164N-138)
1 two screws
(PTT2.6
× 4)
3 mechanism deck
(MG-164N-138)
2 connector
(CN200)

– 11 –
MAIN BOARD, HEAT SINK
SERVO BOARD
4 insulating sheet
3 main board
2 three screws
(PTT2.6
× 6) (ground point)
1 two screws
(PTT2.6
× 10)
6 heat sink
5 eight screws
(PTT2.6
× 10)
2 two screws
(BVTT2
× 4)
1 sensor flexible board
(CN102)
2 two screws
(BVTT2
× 4)
1 flexible boar
d
(CN103)
3 servo board

– 12 –
1 tension spring (FL2)
1 tension spring (FL2
)
2 two tension springs (FLOAT F)
3 Pushing an arrow A part, raise the float block
up ward at the front to release a lock.
A
float block
lever (lock R)
lever (lock L)
MD COVER ASS’Y
FLOAT BLOCK
1 four screws
(B2 × 3)
3 MD cover ass’y
2 Pushing the Cassette Holder toward the direction A with a
screwdriver, etc., disengage the Shaft (MD Cover Guide) from
the slot in the MD Cover Assy.
Note:Take care not to scratch the optiocal Pick-up when pushing
the Cassette Holder with a screwdriver. etc.
shaft (MD cover guide)
cassette holder
A

– 13 –
LO MOTOR ASS’Y (LOADING) (M903)
LEVER (LE) ASS’Y
4 Remove the bracket (LO)
in the direction of the arrow
A .
1 Remove solders of motor (M903)
5 LO motor ass’y (loading)
(M903)
2 tension spring (rack)
3 claw
A
2 stopper washer
2 lever (LE) ass’y
3 roller (GLE)
1

– 14 –
HOLDER ASS’Y
CHUCKING ARM ASS’Y
1 Remove the chucking arm ass’y
in the direction of the arrow.
holder ass’y
2 type-E stopring 1.5
2 type-E stopring 1.5
3 lever (lock L)
2 type-E stopring 1.5
2 type-E stopring 1.5
4 Remove the holder ass’y in the
direction of the arrow.
1 spring (CHKG)
1 spring (CHKG)
3 lever (lock R)

– 15 –
OPTICAL PICK-UP (KMS-241B/J1NP)
SL MOTOR ASS’Y (SLED) (M902), SP MOTOR ASS’Y (SPINDLE) (M901)
6 bearing (SL)
5 feed screw ass’
y
3 screw
(K2 × 3)
2 shaft (SL2)
1 two screws
(K2 × 3)
7 optical pick-up
(KMS-241B/J1NP)
4 screw
(B2 × 3)
4 screw
(P1.7 × 1.8)
5 bracket (SL)
9 two screws
(P1.7 × 1.8)
!º retainer (SP)
!¡ SP motor ass’y
(spindle) (M901)
7 screw
(B2 × 3)
2 two screws
(2 × 8)
3 sensor board
1 Remove solders of motors
(M901, M902)
8 base (SL)
6 SL motor ass’y
(sled) (M902)

– 16 –
SECTION 3
ELECTRICAL ADJUSTMENTS
TEST MODE
This set have the test mode function. In the test mode, FM Auto
Scan/Stop Level andAM (MW)Auto Scan/Stop Level adjustments
can be performed easier than it in ordinary procedure.
<Set the Test Mode>
1. Turn ON the regulated power supply. (The clock is displayed)
Note: Press the [OFF] button, if the clock is not displayed.
2. Push the preset [4] button.
3. Push the preset [5] button.
4. Press the preset [1] button for more than two seconds.
5. Then the display indicates all lights, the test mode is set.
<Release the Test mode>
1. Push the [OFF] button.
MD SECTION
MD section adjustments are done automatically in this set.
TUNER SECTION
Note:
Adjust the tuner section in the sequence shown below.
1. FM Auto Scan/Stop Level Adjustment.
2. FM Stereo Separation Adjustmnet.
3. AM (MW) Auto Scan/Stop Level Adjustment.
4. RDS S-Meter Adjustment. (MDX-C5960R/5970R)
FM Auto Scan/Stop Level Adjustment
Setting:
[SOURCE] button: FM
FREQUENCY SELECT switch: FM 200 k (E model)
Procedure:
1. Set to the test mode.
2. Push the [SOURCE] button and set to FM.
Display
0 dB=1 µV
See the adjustment location from on page 18 for the ad-
justment.
Cautions during repair
When the tuner unit is defective, replace it by a new one be-
cause its internal block is difficult to repair.
3. Adjust with the volume RV2 on TU1 so that the “FM” indica-
tion turns to “FM0” indication on the display window.
But, in case of already indicated “FM0”, turn the RV2 so that
put out light “0” indication and adjustment.
Display
*1: MDX-C5960R/C5970R indicate “98.00”.
Adjustment Location: See page 18.
FM Stereo Separation Adjustment
Setting:
[SOURCE] button: FM
FREQUENCY SELECT switch: FM 200 k (E model)
Procedure:
L-CH Stereo separation: A-B
R-CH Stereo separation: C-D
The separations of both channels should be equal.
Specification: Separation more than 30 dB
Adjustment Location: See page 18.
FM RF signal
generator
Carrier frequency: 97.9 MHz (MDX-C5970)
98.0 MHz (MDX-C5960R/C5970R)
Output level : 22 dB (12.6
µ V)
Mode : mono
Modulation : 1 kHz, 22.5 kHz deviation (30%)
0.01 µ F
set
antenna jack (J1)
FM RF signal
generator
0.01 µ F
set
antenna jack (J1)
+
–
LINE OUT jack (CNP300)
level meter
10 k
Ω
MDX-C5970 MDX-C5960R/
C5970R
Carrier frequency 97.9 MHz 98.0 MHz
Output level 60 dB (1 mV) 70 dB (3.2 mV)
Mode stereo stereo
main 1 kHz, 33.75 kHz 1 kHz, 16.25 kHz
deviation (45%) deviation (21.7%)
Modulation sub 1 kHz, 33.75 kHz 1 kHz, 16.25 kHz
deviation (45%) deviation (21.7%)
19 kHz 7.5 kHz 7.5 kHz
pilot deviation (10%) deviation (10%)
FM Stereo Level meter Level meter
signal generator connection reading (dB)
output channel
L-CH L-CH A
B
R-CH L-CH Adjust RV4 on TU1
for minimum reading.
R-CH R-CH C
D
L-CH R-CH Adjust RV4 on TU1
for minimum reading.
SHUF
*1
SHUF
*1

– 17 – – 18 –
RDS S-Meter Adjustment (MDX-C5960R/C5970R)
Setting:
[SOURCE] button: FM
Procedure:
1. Set to the test mode. (See page 16)
2. Push the [SOURCE] button and set to FM.
Display
3. Push the preset [10] button.
4. Adjust RV1 on MAIN board so that the display indication is
“11.2”.
Display
Specification: Display indication : 10.8 to 11.6
Adjustment Location: See page 18.
AM (MW) Auto Scan/Stop Level Adjustment
Setting:
[MODE] button (MDX-C5970): AM
[MODE] button (MDX-C5960R/C5970R): MW
FREQUENCY SELECT switch: AM 10 k (E model)
Procedure:
1. Set to the test mode. (See page 16)
2. Push the [SOURCE] button and set to FM.
3. Push the [MODE] button and set to AM (MDX-C5970) or MW
(MDX-C5960R/C5970R).
Display
4. Adjust with the volume RV1 on TU1 so that the “AM” or “MW”
indication turns to “AM0” or “MW0” indication on the dis-
play window.
But, in case of already indicated “AM0” or “MW0”, turn the
RV1 so that put out light “0” indication and adjustment.
Display
*2: MDX-C5960R/C5970R indicate “MW”.
*3: MDX-C5960R/C5970R indicate “999”.
*4: Only MDX-C5960R/C5970R indicate.
Adjustment Location: See page 18.
AM RF signal
generator
Carrier frequency: 1000 kHz (MDX-C5970)
999 kHz (MDX-C5960R/5970R)
30% amplitude
modulation by
1 kHz signal
Output level : 33 dB (44.7
µ V)
set
AM dummy antenna
(50 Ω )
30 Ω
15 pF
65 pF
antenna jack (J1)
FM RF signal
generator
Carrier frequency: 98.0 MHz
Output level : 35 dB (56.2
µ V)
Mode : mono
Modulation : no modulation
0.01 µ F
set
antenna jack (J1)
Adjustment Location:
– SET UPPER VIEW –
SHUF
TP
*3
*2
*4
SHUF
TP
*3
*2
*4
SHUF
SHUF
RV1 RDS S-Meter Adjustment
(MDX-C5960R/C5970R)
TU1
RV1 AM (MW) Auto Scan/Stop Level Adjustmen
t
RV2 FM Auto Scan/Stop Level Adjustment
RV4 FM Sereo Separation Adjustment

MDX-C5960R/C5970/C5970R
– 19 – – 20 –
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM – SERVO Section –
F
C B
D A
E
I J
J
I
B
A
C
D
E
F
DETECTOR
1
2J
I
4
5
6
7
A
B
C
D
8
9
E
F
LDPD
LASER DIODE
ILCC
PD
OPTICAL PICK-UP
(KMS-241B/J1NP)
AUTOMATIC
POWER
CONTROL
Q302
11
10
APC
PD
LD/PD
AMP
12
APCREF
I-V
AMP
I-V
AMP
AT
AMP B.P.F. 29 30
WBL
ADFM ADIN 32
ADFG
ABCD
AMP FOCUS
ERROR AMP
TRACKING
ERROR AMP
35
34
26
28
ABCD
FE
TE
SE
V-I
CONVERTER
20
F0CNT WBL
3T EQ
+3.3V
SERIAL/
PARALLEL
CONVERTER,
DECODER
COMMAND
1716 18
SWDT
SCLK
XLAT
RF AMP
B.P.F.
46
RFO 40 RF AGC
& EQ
AGCI
EQ
38
RF
RF AMP,
FOCUS/TRACKING ERROR AMP
IC302
TEMP
48 47
MORFO
MORFI
3T PEAK &
BOTTOM
WBL 33
AUX
73 62
37
PEAK
36
BOTM
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC303
6
8OUT4F OUT4R
M
M901
(SPINDLE)
27
25 OUT2F OUT2R
M
M902
(SLED)
21
23 OUT1F OUT1R
12
10 OUT3F OUT3R
FCS+
FCS–
TRK+
TRK–
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
3
4
IN4R
IN4F
29
30
IN2F
IN2R
19
18
IN1F
IN1R
14
15
IN3F
IN3R
SPFD
SPRD IC306
92
91
88
89
86
85
83 APCREF
SFDR
SRDR
FFDR
FRDR
TFDR
TRDR
16PSB
PWM GENERATOR
AUTOMATIC
POWER
CONTROL
DIGITAL
SERVO
SIGNAL
PROCESS
7465647566 63
ANALOG MUX
A/D CONVERTER
AUTO
SEQUENCER
13
FROM CPU
INTERFACE
DIGITAL SERVO
SIGNAL PROCESSOR
IC301 (2/2)
RECP
PEAK HOLD
Q301
+3.3V
ABCD
AUX1 AUX2
ABCD
FE
TE
SE
PEAK
BOTM
81
80
82
XLRF
CKRF
DTRF
EFM/ACIRC
ENCODER/DECODER
SHOCK PROOF
MEMORY CONTROLLER
ATRAC
ENCODER/DECODER
PLL
FILTER
59
58
61
60
FILI
PCO
CLTV
FILO
100
EFMO 23
ADDT
IC301 (1/2)
15TX
COMPA-
RATOR
51
52
55
ASYO
ASYI
RFI
ADIP
DEMODULATOR/
DECODER
78
ADFG
SPINDLE
SERVO
79 F0CNT
94 93
SPFD SPRD
SUBCODE
PROCESSOR
24
SAMPLING
RATE
CONVERTER
DIGITAL
AUDIO
INTERFACE 22
21
DIN
DOUT
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER, 2M BIT D-RAM
IC301 (1/2)
DADT
INTERNAL BUS
D-RAM CLOCK
GENERATOR
2526 27
512FS OSC
IC304
XBCK LRCK
FS256
BCK
LRCK
FS256
X301
22.5792MHz
16
OSCI
17
OSCO
CPU
INTERFACE MONITOR CONTROL
10
XRST
12
DQSY
11
SQSY
14
XINT
9 8 5 6 7
SENS SRDT SWDT SCLK XLAT
LEVEL SHIFT
IC502
51331
61242
LEVEL SHIFT
IC503
1 2 3 4
MNT0 MNT1 MNT2 MNT3
13
1 3 5
12
2 4 6
FOK SHOCK XBUSY SLOCK
SWDT SCLK XLAT
59 62 55 54 52 45 51 64 26 27 28 29
MNT0 MNT1 MNT2 MNT3
67
A-MUTE
21
LOCK
39
TEMP
MD-RST
SQSY
CC-XINT
SENS
MD-SI
MD-SO
MD-CKO
MD-LAT
7 6
EJECT LOAD
5 4
05
1 7
M
RIN FIN
OUT1 OUT2
LOADING
MOTOR DRIVE
IC305
M903
(LOADING)
63
C-SW
LOADING START/
EJECT END
E-SW LIMIT-IN
(LIMIT)
LOADING
END
ON:When the disc loading start
and the disc eject completion. ON:When completion of
the disc loading.
ON:When the optical pick-up is
inner position.
31
32
EXTAL
XTAL
X501
10MHz
TH501
66
DEEMP
47, 46, 48, 49
1, 2, 24, 25
D0 – D3
32 – 29, 34 – 38, 43
9 – 12, 14 – 18, 5
A0 – A9
D0 – D3A00 – A09
41 22
45 3
44 4
42 23
XOE
XWE
XRAS
XCAS
OE
WE
RAS
CAS
D-RAM
IC307
(Page 23)
A
DADT, BCK, LRCK, FS256(Page 23)
C
LOCK
MD-ATT
(Page 23)
D
(Page 23)
B
EMPHASIS
MD MECHANISM CONTROLLER
IC501 (1/2)
• SIGNAL PATH
: MD PLAY
11 56
RESET, EMPHASIS
RESET

MDX-C5960R/C5970/C5970R
– 21 – – 22 –
4-2. BLOCK DIAGRAM – TUNER Section –
1
4
2FM-ANT
AM-ANT
6
VCO
21
FM/AM-IF
20
SD
5
5 283 24
10
16
9
13 12
69
100
15
VT
13
AM OSC
DATA
CLOCK
SSTOP
SDA
OSCOUT
OSCIN
SCL
SSTOP
BAND (9K-10K)
53
S-METER (VSM)
SD-IN
83
ST-MONO
62
TU-ATT
LP AM
2
LP HC
1
LP FM
LP OUT
FM IN
25
AM IN
IF FM
14
IF AM
51
QUALITY
35
NS-MASK
14
VDDA
7
VDDD
81
19
S-METER
18
16
12
FM-LCH
FM-RCH
AM-DET
23
FM-DET
FILTER
AM OSC
BUFFER
Q4
X1
10.25MHz
FM/AM PLL
IC100
05
• SIGNAL PATH
: FM
: AM (MW/LW)
MUTING
Q101
BUFFER
Q50
BAND-PASS
FILTER
IC101
R-CH
R-CH
FM/AM TUNER UNIT
TU1
MASTER CONTROLLER
IC700 (1/4)
LO/DX
11
SEEK
22
ST/MONO
SEEK
FM/AM SIGNAL
METER BUFFER
Q1
B+ SWITCH
Q51
J1
(FM/AM ANTENNA) 8
FM +B
FM B+
FM B+
10
AM +B
AM B+
TUNER B+
BACKUP +5V
9
+B
82 52
MPDH (MTP)
67
DAVN
RDS DECODER
IC102
INTERFACE
REGISTER
IIC BUS
SLAVE
TRANSCEIVER
OSCILLATOR
& CLOCK
X2
4.332MHz
48
5
OSCI
OSCO
10
9
SDA
SCL
DAVN
57 kHz
BAND-PASS
FILTER
CLOCKED
COMPARATOR
RDS/RDBS
DEMODULATOR
& DECODER
SIGNAL
QUALITY
DECODER
16 18 19
MPX
CIN
4
5
SC
OUT
MULTI
PATH
DETECTOR
20 2
LVIN
MPTH
Q5
NOISE DET
DISCHARGE
SWITCH
FM RDS
S-METER
RV1
(C5970: E model)
(C5960R/C5970R)
(C5970)
(C5960R/C5970R)
DATA
CLOCK
DATA, CLOCK (Page 23)
G
FM (Page 23)
E
AM (Page 23)
F
S701
MW 10K/FM 200K
MW 9K/FM 50K
FREQUENCY SELECT
SEEKOUT
MUTING
CONTROL SWITCH
Q103
D5

MDX-C5960R/C5970/C5970R
– 23 – – 24 –
4-3. BLOCK DIAGRAM – MAIN Section –
LOCK IN
61
AF ATT
71
SCL 70
SDA
55AMP ATT
80
58
TEL-ATT
32
60
AU ATT
05
• SIGNAL PATH
: MD PLAY
: FM
: AM (MW/LW)
: BUS AUDIO IN
STB
I
(Page 28)
AMP ON
H
(Page 27)
MASTER CONTROLLER
IC700 (2/4)
NOISE
SHAPER
INPUT
INTERFACE D/A
CONVERTER
MODE
CONTROL
CLK
CONTROL DIGITAL FILTER,
D/A CONVERTER
IC101
12
9
VOUTL
VOUTR R-CH
BATTERY OFF
MUTE DRIVER
Q704
MUTING
CONTROL SWITCH
Q702 (2/2)
MUTING
CONTROL SWITCH
Q703
56
AMP ON
MUTE
J
(Page 27)
MD-ATT
D
(Page 20)
6
5
4
1
15
17 16
DATA
BCK
LRCK
XTI
RSTB
DM1 DM0
BCK
DADT
LRCK
FS256
A
(Page 20)
DADT,
BCK,
LRCK,
FS256
B
(Page 20)
E
(Page 22)
F
(Page 22)
EMPHASIS
DIGITAL
FILTER
RESET,
EMPHASIS
FM
AM
G
(Page 22) DATA, CLOCK
C
(Page 20) LOCK
RESET
COM +8V
BATT B+
D703
Q702 (1/2)
D700
D511
D701
CNP300 (2/2)
FRONT
LINE OUT
AUDIO OUT
(LINE OUT)
(L)
(R)
REAR
LINE OUT
(L)
(R)
MUTING
Q301
MUTING
Q401
MUTING
Q300
MUTING
Q400
FRONT L (+)
1
12
14
5
3
FL+
FL–
21
23
FR+
FR–
FL-IN
FR-IN
11 9
7
RL+
RL–
RL-IN
15
22
17
19
RR+
RR–
RR-IN
4
LEVEL SHIFT
Q500
CNP500 (1/2)
(POWER CONNECTOR)
POWER AMP
IC500
FRONT L (–)
9
FRONT R (+)
4
FRONT R (–)
12
REAR L (+)
2
REAR L (–)
10
REAR R (+)
3
REAR R (–)
11
TEST MODE
15
13
MUTING
Q302
MUTING
Q403
MUTING
Q303
MUTING
Q402
PDL
SE2L
SE1L
SE3L
SDA
SCL
DATA
CLOCK
MUTE
12
11
1
28
VOLUME
CONTROL
CIRCUIT
LOUDNESS
CONTROL
CIRCUIT
DIGITAL CONTROL
CIRCUIT IIC BUS
LOUDNESS
CONTROL
CIRCUIT
INPUT
SELECTOR
(L)
(R) R-CH
R-CH
INPUT SELECT,
ELECTRICAL VOLUME
IC300
CNP300 (1/2)
BUS
AUDIO IN
TESTIN
SOFT
MUTE TONE
CONTROL
CIRCUIT FADER
FADER 20
2625 24
OUT RL
22
OUT FL
R-CH
R-CH
R-CH
R-CH
(C5970/C5970R)
(C5960R)
(C5970/C5970R)
MUTE ST-BY
TEL-ATT
(C5970/C5970R)