JVC NXPN-7 Service manual

SERVICE MANUAL

MB675<Rev.002>20089SERVICE MANUAL

NX-PN7J,NX-PN7C,NX-PN7B,NX-PN7E,

NX-PN7US,NX-PN7UW,NX-PN7UJ

COMPACT COMPONENT SYSTEM

NX-PN7EN,NX-PN7EV,NX-PN7A,

NX-PN7B, NX-PN7E
NX-PN7EN, NX-PN7EV

COPYRIGHT © 2008 Victor Company of Japan, Limited

Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

COPYRIGHT © 2008 Victor Company of Japan, Limited

No.MB675<Rev.002>

2008/9

REVISION INFORMATION

COMPACT COMPONENT SYSTEM

NX-PN7J, NX-PN7C, NX-PN7B, NX-PN7E,

NX-PN7EN, NX-PN7EV, NX-PN7A, NX-PN7US,

NX-PN7UW, NX-PN7UJ

■ OVERVIEW

Add NX-PN7B, NX-PN7E, NX-PN7EN, NX-PN7EV, NX-PN7A, NX-PN7US, NX-PN7UW and
NX-PN7UJ

■ DETAILS

COVER SECTION

Title Line No.MB675<Rev.001> No.MB675<Rev.002> Description

Revision Rev.001 Rev.002
Issue Date 2008/07 2008/09
Model No. NX-PN7C,

Cover Illustration ILLUSTRATION(mb675_0001.png) ILLUSTRATION(mb675_0001.png)
Category Audio/Video Systems category Audio/Video Systems Division
SPECIFICATION 1 NX-PN7J,C
10

NX-PN7J

Dock A and B for iPod
* Only for still picture.

Compatible iPod types
iPod nano 1GB/2GB/4GB

yes
no

NX-PN7A,
NX-PN7B,

NX-PN7C,

NX-PN7E,
NX-PN7EN,
NX-PN7EV,

NX-PN7J,

NX-PN7UJ,
NX-PN7US,
NX-PN7UW

Dock A and B for iPod
* Only for still picture.

Compatible iPod types
iPod nano 1GB/2GB/4GB

Audio
yes

COPYRIGHT © 2008 Victor Company of Japan, Limited

MB675-R002

2008/09

Title Line No.MB675<Rev.001> No.MB675<Rev.002> Description

11

12

13

14

15

16

17

18

19

20

21 -

22 -

iPod nano (2nd Generation)
2GB/4GB/8GB

yes
no

iPod nano (3rd Generation) 4GB/8GB

yes

yes

iPod mini 4GB
yes
no

iPod mini (2nd Generation) 4GB/ 6GB

yes
no

iPod (4th Generation) 20GB/40GB

yes

no

iPod photo (4th Generation)

20GB/30GB/40GB/60GB
yes

yes*

iPod video (5th Generation)
30GB/60GB/80GB

yes
yes

iPod classic 80GB/160GB

yes

yes

iPod touch 8GB/16GB/32GB
yes
yes

iPhone 4GB/8GB/16GB
yes

yes

Video
no

iPod nano (2nd Generation)

2GB/4GB/8GB
Audio

yes

Video
no

iPod nano (3rd Generation) 4GB/8GB

Audio
yes

Video

yes

iPod mini 4GB

Audio

yes

Video
no

iPod mini (2nd Generation) 4GB/ 6GB

Audio

yes

Video
no

iPod (4th Generation) 20GB/40GB
Audio

yes

Video
no

iPod photo (4th Generation)
20GB/30GB/40GB/60GB

23 -

24 -

25 -

26 -

2 (MB675-R002)

Audio
yes

Video
yes*

iPod video (5th Generation)
30GB/60GB/80GB

Audio
yes

Video
yes

iPod classic 80GB/160GB

Audio
yes

Title Line No.MB675<Rev.001> No.MB675<Rev.002> Description

27 -

28 -

29 -

30 -

31 -

54 - NX-PN7BEENEV
55 -

56 -

57 ­ 58 -

59 ­ 60 ­ 61 -

62 -

63 -

64 -

65 -

66 -

67 -

68 -

69 -

Video
yes

iPod touch 8GB/16GB/32GB

Audio
yes

Video
yes

iPhone 4GB/8GB/16GB

Audio
yes

Video
yes

Amplifier
Output Power

10 W (5 W + 5 W) at 8 Ω (10% THD)
(IEC268-3)

Terminals
AUDIO IN

Input Sensitivity/
Impedance (1 kHz)

LEVEL 1: 500 mV/47 kΩ
LEVEL 2: 250 mV/47 kΩ
LEVEL 3: 125 mV/47 kΩ
Dock A and B for iPod

* Only for still picture.
Compatible iPod types
iPod nano 1GB/2GB/4GB
Audio
yes

Video
no

iPod nano (2nd Generation)
2GB/4GB/8GB

Audio
yes

Video
no

iPod nano (3rd Generation) 4GB/8GB
Audio
yes

Video
yes

iPod mini 4GB
Audio
yes

Video
no

iPod mini (2nd Generation) 4GB/ 6GB
Audio
yes

(MB675-R002) 3

Title Line No.MB675<Rev.001> No.MB675<Rev.002> Description

70 -

71 -

72 -

73 -

74 -

75 -

76 -

77 -

78 -

79 -

80 -

81 -

82 -

83 -

84 -

85 -

Video
no

iPod (4th Generation) 20GB/40GB
Audio
yes

Video
no

iPod photo (4th Generation)
20GB/30GB/40GB/60GB

Audio
yes

Video
yes*

iPod video (5th Generation)
30GB/60GB/80GB

Audio
yes

Video
yes

iPod classic 80GB/160GB
Audio
yes

Video
yes

iPod touch 8GB/16GB/32GB
Audio
yes

Video
yes

iPhone 4GB/8GB/16GB
Audio
yes

Video
yes

Output power (each iPod)
DC 5 V 500 mA

VIDEO OUT (For iPod)
Composite

PHONES

86 ­ 87 ­ 88 -

89 ­ 90 -

91 -

92 -

4 (MB675-R002)

32Ω 1 kΩ
15 mW/ch output into 32 Ω
Tuner
FM tuning range

87.50 MHz - 108.00 MHz
Unit
Dimensions (W/H/D)

318 mm × 148 mm × 154 mm
Mass

Approx. 1.6 kg
Speaker Specifications

Title Line No.MB675<Rev.001> No.MB675<Rev.002> Description

93 -

94 -

95 -

96 ­ 97 -

98 -

99 -

100 -

101 ­ 102 ­ 103 -

105 - Design and specifications are subject to

106 - NX-PN7AUSUJUW
107 -

108 -

109 ­ 110 -

111 ­ 112 ­ 113 -

114 -

115 -

116 -

Type
Full range bass-reflex type

Speakers
7 cm cone × 2

Impedance
8 Ω

Power Specifications
Power Source

DC 10.7 V 3 A (EXTERNAL DC IN)
AC Adaptor (AA-R1001)

INPUT
AC 110 - 240 V 50 Hz/60 Hz 1 A

OUTPUT
DC 10.7 V 3 A 32.1 VA

Power Consumption

35 W (power on mode)
4 W or less (in Standby mode)
1 W or less (in ECO mode)
19 W (in Standby mode with two iPod

devices connected.)

change without notice.

Amplifier
Output Power

10 W (5 W + 5 W) at 8Ω(10% THD)
(IEC268-3)

Terminals
AUDIO IN

Input Sensitivity/
Impedance (1 kHz)

LEVEL 1: 500 mV/47 kΩ
LEVEL 2: 250 mV/47 kΩ
LEVEL 3: 125 mV/47 kΩ
Dock A and B for iPod

* Only for still picture.
Compatible iPod types
iPod nano 1GB/2GB/4GB
Audio
yes

Video
no

iPod nano (2nd Generation)
2GB/4GB/8GB

Audio
yes

Video
no

(MB675-R002) 5

Title Line No.MB675<Rev.001> No.MB675<Rev.002> Description

117 -

118 -

119 -

120 -

121 -

122 -

123 -

124 -

125 -

126 -

127 -

128 -

129 -

130 -

131 -

132 -

133 -

134 -

135 -

136 -

iPod nano (3rd Generation) 4GB/8GB
Audio
yes

Video
yes

iPod mini 4GB
Audio
yes

Video
no

iPod mini (2nd Generation) 4GB/ 6GB
Audio
yes

Video
no

iPod (4th Generation) 20GB/40GB
Audio
yes

Video
no

iPod photo (4th Generation)
20GB/30GB/40GB/60GB

Audio
yes

Video
yes*

iPod video (5th Generation)
30GB/60GB/80GB

Audio
yes

Video
yes

iPod classic 80GB/160GB
Audio
yes

Video
yes

iPod touch 8GB/16GB/32GB
Audio
yes

Video
yes

iPhone 4GB/8GB/16GB
Audio
yes

Video
yes

Output power (each iPod)
DC 5 V 500 mA

VIDEO OUT (For iPod)
Composite

6 (MB675-R002)

Title Line No.MB675<Rev.001> No.MB675<Rev.002> Description

137 -

138 ­ 139 ­ 140 -

141 ­ 142 -

143 -

144 ­ 145 -

146 -

147 -

148 ­ 149 -

150 -

151 -

152 -

PHONES

32Ω 1 kΩ
15 mW/ch output into 32 Ω
Tuner
FM tuning range

87.50 MHz-108.00 MHz
Unit
Dimensions (W/H/D)

318 mm × 148 mm × 154 mm
Mass

Approx. 1.6 kg
Speaker Specifications
Type

Full range bass-reflex type
Speakers

7 cm cone × 2
Impedance

8 Ω
Power Specifications
Power Source

DC 10.7 V 3 A (EXTERNAL DC IN)
AC Adaptor (AA-R1001)

INPUT
AC 110 - 240 V , 50 Hz/60 Hz 1 A

OUTPUT
DC 10.7 V 3 A

Power Consumption:

35 W (power on mode)

153 ­ 154 ­ 155 -

157 - Design and specifications are subject to

4 W or less (in Standby mode)

1 W or less (in ECO mode)

19 W (in Standby mode with two iPod

devices connected.)

change without notice.

SECTION 1 PRECAUTION

Title Line No.MB675<Rev.001> No.MB675<Rev.002> Description

1.1 Safety
Precautions

1.5 Safety
Precautions (U.K
only)

1 - 1. This design of this product contains

8 ILLUSTRATION(LXM-SA007-

001_01.png)

T - 1.5 Safety Precautions (U.K only)

ILLUSTRATION(LXM-SA009­001_01.png)

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.

(MB675-R002) 7

Title Line No.MB675<Rev.001> No.MB675<Rev.002> Description

2 - 2. Any unauthorised design alterations or

additions will void the manufacturer's
guarantee; furthermore the manufacturer
cannot accept responsibility for personal
injury or property damage resulting
therefrom.

3 - 3. Essential safety critical components

are identified by
( ILLUSTRATION(kigo001.png) ) on the
Parts List and by shading on the
schematics, and must never be replaced
by parts other than those listed in the
manual. Please note however that many
electrical and mechanical parts in the
product have special safety related
characteristics. These characteristics are
often not evident from visual inspection.
Parts other than specified by the
manufacturer may not have the same
safety characteristics as the
recommended replacement parts shown
in the Parts List of the Service Manual
and may create shock, fire, or other
hazards.

4 - 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
re-assembling.

1.5.1 Warning T - 1.5.1 Warning
1 - 1. Service should be performed by

qualified personnel only.

2 - 2. This equipment has been designed

and manufactured to meet international
safety standards.

3 - 3. It is the legal responsibility of the

repairer to ensure that these safety
standards are maintained.

4 - 4. Repairs must be made in accordance

with the relevant safety standards.

5 - 5. It is essential that safety critical

components are replaced by approved
parts.

6 - 6. If mains voltage selector is provided,

check setting for local voltage.

7 - ILLUSTRATION(LXM-SA009-

001_02.png)

STANDARD SCHEMATIC DIAGRAMS

Description of Major ICs

Diagram Name No.MB675<Rev.001> No.MB675<Rev.002> Description

Menu - U302: BI102024X

BI102024X.xml

Menu - U702: BI103952X

BI103952X.xml

Menu - U310: BI113231X

BI113231X.xml

8 (MB675-R002)

Diagram Name No.MB675<Rev.001> No.MB675<Rev.002> Description

Menu - U705: BI119711X

BI119711X.xml

Menu - U703: BI117371X

NJM2233BM.xml

Menu - U303: BI126541V

TDA7266SA.xml

(MB675-R002) 9

PARTS LIST

r

r

MODEL No. LIST

Model No. No.MB675<Rev.002>

NX-PN7A 07
NX-PN7B 03
NX-PN7C 02
NX-PN7E 04
NX-PN7EN 05
NX-PN7EV 06
NX-PN7J 01
NX-PN7UJ 0A
NX-PN7US 08
NX-PN7UW 09

General assembly [M1]

Symbol or

!

M1 6 ------------ BI1005469102X1 FRONT CABINET (Addition) 1 07,08,09,0A
M1 13 ------------ BI1005450302X1 DISPLAY WINDOW (Addition) 1 07,08,09,0A
M1 14 ------------ BI1005480102X1 AD ORNAMENT (Addition) 1 07,08,09,0A
M1 35 ------------ BI2035200101X1 BRACKET (Addition) 1 03,04,05,06,07,08,09,0A

<Rev.001> <Rev.002>

Electrical parts list Main board [01]

Symbol o

!

01 U801 ------------ BI100NS9543000 IC (Addition) 1 03,04,05,06
01 Q323 ------------ DTC114TK DIGI TRANSISTOR (Addition) 1 03,04,05,06,07,08,09,0A
01 D324 ------------ MTZJ20B Z DIODE (Addition) 1 03,04,05,06,07,08,09,0A
01 C437 ------------ BICC475250KA02 C CAPACITOR (Addition) 1 03,04,05,06,07,08,09,0A

! 01 R303 BIRCW0100050X ------------ RESISTOR (Deletion) 1 01,02

! 01 R303 ------------ BIRCW0100050X RESISTOR (Addition) 1 01,03,04,05,06,07,08,09,0A

01 R330 ------------ BIRC0000025A00 C RESISTOR (Addition) 1 03,04,05,06,07,08,09,0A
01 R357 ------------ BIRC0000105A00 C RESISTOR (Addition) 1 03,04,05,06
01 R357 ------------ BIRC1830105A00 C RESISTOR (Addition) 1 07,08,09,0A
01 CN302A ------------ BI12S30063X SOCKET CONN (Addition) 1 03,04,05,06
01 CN307A ------------ BI12P30293X CONNECTOR (Addition) 1 03,04,05,06,07,08,09,0A
01 RN801 ------------ BIRN1020105A40 C RESISTOR (Addition) 1 03,04,05,06

<Rev.001> <Rev.002>

Part No.

Part No.

Part Name Description Qty Models

Part Name Description Qty Models

DC jack board [05]

Symbol or

!

05 CN307B ------------ BI240V03396M01 CONNECTOR (Addition) 1 03,04,05,06,07,08,09,0A
05 JK204 ------------ BI23A0541X DC POWER JACK (Addition) 1 03,04,05,06,07,08,09,0A

<Rev.001> <Rev.002>

Part No.

Part Name Description Qty Models

Packing and accessories [M3]

Symbol o

!

M3 A1 ------------ BI440002109000 INST BOOK (Addition) 1 03
M3 A1 ------------ BI440002089000 INST BOOK (Addition) 1 04
M3 A1 ------------ BI440002108000 INST BOOK (Addition) 1 05
M3 A1 ------------ BI440002126000 INST BOOK (Addition) 1 06
M3 A1 ------------ BI440002127000 INST BOOK (Addition) 1 07
M3 A1 ------------ BI440002107000 INST BOOK (Addition) 1 08
M3 A1 ------------ BI440002092000 INST BOOK (Addition) 1 09
M3 A1 ------------ BI440002125000 INST BOOK (Addition) 1 0A
M3 A3 ------------ BI400083291001 REGISTER CARD (Addition) 1 03
M3 A4 ------------ ------------ WARRANTY CARD (Addition) 1 03,04,05,06
M3 A4 ------------ ------------ WARRANTY CARD (Addition) 1 07,08,09,0A
M3 A5 ------------ BIG60NXPN702BX REMOCON UNIT (Addition) 1 03,04,05,06
M3 A8 ------------ ------------ BATTERY (Addition) 1 01,02,03,04,05,06,07,08,09,0A

! M3 A9 ------------ BI212011030001 AC ADAPTOR (Addition) 1 03
! M3 A9 ------------ BI212011023001 AC ADAPTOR (Addition) 1 04,05,06,08,09,0A
! M3 A9 ------------ BI212011029001 AC ADAPTOR (Addition) 1 07

M3 A10 ------------ ------------ WARRANTY CARD (Addition) 1 07,08,09,0A

! M3 A11 ------------ BI23A0095X CONVERSION

<Rev.001> <Rev.002>

Part No.

Part Name Description Qty Models

(Addition) 1 08,09,0A

PLUG

10 (MB675-R002)

Symbol o

r

!

M3 P1 ------------ BI410011378001 CARTON (Addition) 1 03,04,05,06
M3 P1 ------------ BI410011411001 CARTON (Addition) 1 07,08,09,0A

M3 XXXXX ------------ ------------ BATTERY (Deletion) 1 01,02

<Rev.001> <Rev.002>

Part No.

Part Name Description Qty Models

(MB675-R002) 11

SPECIFICATION

NX-PN7J,C

Amplifier

Output Power without iPod

with an iPod
with two iPod devices

AUDIO IN Input Sensitivity/

Impedance (1 kHz)

Dock A and B for iPod
* Only for still picture.

Output power (each iPod) DC 5 V=500 mA
VIDEO OUT (For iPod) Composite
PHONES 32 Ω - 1 kΩ

FM tuning range 87.5 MHz - 108.0 MHz (100 kHz channel space)
AM tuning range 530 kHz - 1710 kHz (10 kHz channel space)

Dimensions (W/H/D) 318 mm × 148 mm × 154 mm (12-9/16 inches × 5-7/8 inches × 6-1/8 inches)
Mass Approx. 2.6 kg (5.8 lbs)

Type Full range bass-reflex type
Speakers 7 cm (2-13/16 inches) cone × 2
Impedance 8 Ω

Power Requirements AC 120V~60 Hz, 0.4 A
Power Consumption 35 W (power on mode)

Compatible iPod types iPod nano 1GB/2GB/4GB Audio yes

7.5W per channel min. RMS driven into 8 Ω at 1 kHz with no more than 10% total harmonic distortion

7.0W per channel min. RMS driven into 8 Ω at 1 kHz with no more than 10% total harmonic distortion

6.3W per channel min. RMS driven into 8 Ω at 1 kHz with no more than 10% total harmonic distortion

Terminals

LEVEL 1: 500 mV/47 kΩ
LEVEL 2: 250 mV/47 kΩ
LEVEL 3: 125 mV/47 kΩ

Video no

iPod nano (2nd Generation) 2GB/4GB/8GB Audio yes

Video no

iPod nano (3rd Generation) 4GB/8GB Audio yes

Video yes

iPod mini 4GB Audio yes

Video no

iPod mini (2nd Generation) 4GB/ 6GB Audio yes

Video no

iPod (4th Generation) 20GB/40GB Audio yes

Video no

iPod photo (4th Generation) 20GB/30GB/40GB/60GB Audio yes

Video yes*

iPod video (5th Generation) 30GB/60GB/80GB Audio yes

Video yes

iPod classic 80GB/160GB Audio yes

Video yes

iPod touch 8GB/16GB/32GB Audio yes

Video yes

iPhone 4GB/8GB/16GB Audio yes

Video yes

15 mW/ch output into 32 Ω

Tuner

Unit

Speaker Specifications

Power Specifications

4 W or less (in Standby mode)
2 W or less (in ECO mode)
19 W (in Standby mode with two iPod devices connected.)

Design and specifications are subject to change without notice.

1-2 (No.MB675<Rev.002>)

NX-PN7BEENEV

Amplifier

Output Power 10 W (5 W + 5 W) at 8 Ω (10% THD) (IEC268-3)

Terminals

AUDIO IN Input Sensitivity/

Impedance (1 kHz)

Dock A and B for iPod
* Only for still picture.

Output power (each iPod) DC 5 V 500 mA
VIDEO OUT (For iPod) Composite
PHONES 32Ω 1 kΩ

FM tuning range 87.50 MHz - 108.00 MHz

Dimensions (W/H/D) 318 mm × 148 mm × 154 mm
Mass Approx. 1.6 kg

Type Full range bass-reflex type
Speakers 7 cm cone × 2
Impedance 8 Ω

Power Source DC 10.7 V 3 A (EXTERNAL DC IN)
AC Adaptor (AA-R1001) INPUT AC 110 - 240 V 50 Hz/60 Hz 1 A

Power Consumption 35 W (power on mode)

Compatible iPod types iPod nano 1GB/2GB/4GB Audio yes

OUTPUT DC 10.7 V 3 A 32.1 VA

4 W or less (in Standby mode)
1 W or less (in ECO mode)
19 W (in Standby mode with two iPod devices connected.)

LEVEL 1: 500 mV/47 kΩ
LEVEL 2: 250 mV/47 kΩ
LEVEL 3: 125 mV/47 kΩ

iPod nano (2nd Generation) 2GB/4GB/8GB Audio yes

iPod nano (3rd Generation) 4GB/8GB Audio yes

iPod mini 4GB Audio yes

iPod mini (2nd Generation) 4GB/ 6GB Audio yes

iPod (4th Generation) 20GB/40GB Audio yes

iPod photo (4th Generation) 20GB/30GB/40GB/60GB Audio yes

iPod video (5th Generation) 30GB/60GB/80GB Audio yes

iPod classic 80GB/160GB Audio yes

iPod touch 8GB/16GB/32GB Audio yes

iPhone 4GB/8GB/16GB Audio yes

15 mW/ch output into 32 Ω

Tuner

Unit

Speaker Specifications

Power Specifications

Video no

Video no

Video yes

Video no

Video no

Video no

Video yes*

Video yes

Video yes

Video yes

Video yes

Design and specifications are subject to change without notice.

(No.MB675<Rev.002>)1-3

NX-PN7AUSUJUW

Amplifier

Output Power 10 W (5 W + 5 W) at 8Ω(10% THD) (IEC268-3)

Terminals

AUDIO IN Input Sensitivity/

Impedance (1 kHz)

Dock A and B for iPod
* Only for still picture.

Output power (each iPod) DC 5 V 500 mA
VIDEO OUT (For iPod) Composite
PHONES 32Ω 1 kΩ

FM tuning range 87.50 MHz-108.00 MHz

Dimensions (W/H/D) 318 mm × 148 mm × 154 mm
Mass Approx. 1.6 kg

Type Full range bass-reflex type
Speakers 7 cm cone × 2
Impedance 8 Ω

Power Source DC 10.7 V 3 A (EXTERNAL DC IN)
AC Adaptor (AA-R1001) INPUT AC 110 - 240 V , 50 Hz/60 Hz 1 A

Power Consumption: 35 W (power on mode)

Compatible iPod types iPod nano 1GB/2GB/4GB Audio yes

OUTPUT DC 10.7 V 3 A

LEVEL 1: 500 mV/47 kΩ
LEVEL 2: 250 mV/47 kΩ
LEVEL 3: 125 mV/47 kΩ

iPod nano (2nd Generation) 2GB/4GB/8GB Audio yes

iPod nano (3rd Generation) 4GB/8GB Audio yes

iPod mini 4GB Audio yes

iPod mini (2nd Generation) 4GB/ 6GB Audio yes

iPod (4th Generation) 20GB/40GB Audio yes

iPod photo (4th Generation) 20GB/30GB/40GB/60GB Audio yes

iPod video (5th Generation) 30GB/60GB/80GB Audio yes

iPod classic 80GB/160GB Audio yes

iPod touch 8GB/16GB/32GB Audio yes

iPhone 4GB/8GB/16GB Audio yes

15 mW/ch output into 32 Ω

Tuner

Unit

Speaker Specifications

Power Specifications

4 W or less (in Standby mode)
1 W or less (in ECO mode)
19 W (in Standby mode with two iPod devices connected.)

Video no

Video no

Video yes

Video no

Video no

Video no

Video yes*

Video yes

Video yes

Video yes

Video yes

Design and specifications are subject to change without notice.

1-4 (No.MB675<Rev.002>)

SECTION 1

PRECAUTION

1.1 Safety Precautions

(1) This design of this product contains special hardware and

many circuits and com ponen ts sp ecial ly for s afety purp os­es. 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.

(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 respo nsibility for pe rsonal 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 vi sual insp ection nor can the
protection afforded by them nec essaril y be obtained by us­ing replacement compon ents rated for higher voltag e, watt­age, etc. Replacement parts which have these special
safety characteristic s ar e identified in the Parts L is t of Ser­vice Manual. Electrical components having such features
are identified by shading on the schemat ics and by ( ) on
the Parts List in the Servic e Manual. The use o f a substitute
replacement which does not have the s am e 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 w ith ties,

clamps, tubings, barrie r s a nd th e li ke 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 reass embling the produc t, always perform an is ola­tion check on the exposed metal parts of the product (an­tenna terminals, knobs, metal cabinet, screw heads,
headphone jack, con trol shaft s, etc.) to be sure th e product
is safe to operate without danger of elect rical 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 Test er", measure the leak age cu rrent
from each exposed metal parts of the cabinet, parti cular­ly any exposed metal part having a return path to the
chassis, to a kn own good earth g round. Any lea kage 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 mann er. C on nec t 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

voltmeter.
Move the resistor connection to each exposed metal
part, particularly any exposed metal part having a return
path to the chassis, and measu re t he AC volt age acros s
the resis tor. Now, r ever se th e plug in th e AC o utlet 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.).

AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)

0.15 F AC TYPE

Place this
probe on

1500 10W

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 provid ed, 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 dia gra ms , the pa rts 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)

each exposed
metal part.

(No.MB675<Rev.002>)1-5

1.5 Safety Precautions (U.K only)

(1) This design of this product c ontain s sp ecial h ard ware an d ma ny c ircuits and compo nen ts spec ially for safety purp oses. Fo r con-

tinued protection, no ch anges should be mad e to the original d esi gn unless authorized in wr it ing by th e m an ufac turer. Replace­ment parts must be identical to those used in the original circuits.

(2) Any unauthorised design alterations or additions will void the manufacturer's guarantee; furthermore the manufacturer cannot

accept responsibility for personal injury or property damage resulting therefrom.

(3) Essential safety critical component s are id en tifi ed by ( ) on the Parts List and by shading on the sche ma tic s, an d mu st ne ver

be replaced by parts other than those listed in the manual. Please note however that many electrical and mechanical parts in
the product have specia l s afet y rel ate d characteristics. Thes e c hara cte ris tic s a re often not evident from visua l ins pe cti on . Parts
other than specified by the manufa cturer ma y not hav e the same safety chara cteris tics as the recomme nded rep lacemen t parts
shown in the Parts List of the Service Manual and may create shock, fire, or other hazards.

(4) The leads in the products are routed a nd dresse d with tie s, clamps, tu bings, ba rriers and the li ke to be separated f rom 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 re-assembling.

1.5.1 Warning

(1) Service should be performed by qualified personnel only.
(2) This equipment has been designed and manufactured to meet international safety standards.
(3) It is the legal responsibility of the repairer to ensure that these safety standards are maintained.
(4) Repairs must be made in accordance with the relevant safety standards.
(5) It is essential that safety critical components are replaced by approved parts.
(6) If mains voltage selector is provided, check setting for local voltage.

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.

1-6 (No.MB675<Rev.002>)

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

SECTION 3

DISASSEMBLY

3.1 Main body (Used figure are NX-PN7J)

3.1.1 Removing the Rear cabinet (See Fig.1, 2)

(1) Remove the thirteen screws A attaching the Rear cabinet.

(See Fig.1)

(2) Disconnect the card wire from LCD board connected to

connector CN308

(3) Disconnect the connector wire from LED board connected

to connector CN713A

(4) Disconnect the connector wire from iPod board connected

to connector CN710A

(5) Disconnect the connector wire from iPod board connected

to connector CN711A of the Main board. (See Fig.2)

(6) Disconnect the connector wire from LED board connected

to connector CN712A of the Main board. (See Fig.2)

(7) Disconnect the connector wire from Speakers c onnected to

connector CN304

of the Main board. (See Fig.2)

of the Main board. (See Fig.2)
of the Main board. (See Fig.2)

of the Main board. (See Fig.2)

A

A

Fig.1

CN308 CN710A CN711ACN304

CN713A CN712A

Fig.2

(No.MB675<Rev.002>)1-7

3.1.2 Removing the Main board (See Fig.3 to 5)

(1) Disconnect the connector wires from Jack board connect-

ed to connector CN301A
Main board. (See Fig.3)

(2) Disconnect the Earth wire conne cte d to post pin WP304

the Main board. (See Fig.3)

(3) Disconnect the connector wire f rom AC ad apter c onnec ted

to connector CN307A

(4) Remove the two screws B attaching the Antenna terminal.

(See Fig.4)

(5) Remove the three screws C attaching the Main board. (See

Fig.5)

, CN302A and CN306A of the

of the Main board. (See Fig.3)

WP304

of

CN302A CN301A CN306A CN307A

Fig.3

B

3.1.3 Removing the AC adapter (See Fig.6)

(1) Remove the two screws D attaching the AC adapter.

3.1.4 Removing the Jack board (See Fig.6)

(1) Remove the one screw E attaching the Jack board.

3.1.5 Removing the LCD board (See Fig.7)

(1) Remove the seven screws F attaching the LCD board.

Fig.4

C

Fig.5

E

D

Fig.6

1-8 (No.MB675<Rev.002>)

F

Fig.7

3.1.6 Removing the LED boards (See Fig.8)
Remove the two screws G attaching the LED boards.

3.1.7 Removing the iPod board (See Fig.9 to 12)

(1) Remove the twelve screws H attaching the Speaker cov-

ers. (See Fig.9)
(2) Remove the four screws J attaching the Duct. (See Fig.10)
(3) Remove the four screws K attaching the Holder. (See

Fig.11)
(4) Remove the five screws L attaching the iPod board. (See

Fig.12)
(5) Turn over the iPod board and then remove the cover

spring.

H

G

Fig.8

K

Fig.11

Cover spring

H

Fig.9

L

Fig.12

J

Fig.10

(No.MB675<Rev.002>)1-9

SECTION 4

ADJUSTMENT

This service manual does not describe ADJUSTMENT.

SECTION 5

TROUBLESHOOTING

This service manual does not describe TROUBLESHOOTING.

1-10 (No.MB675<Rev.002>)

(No.MB675<Rev.002>)1-11

Victor Company of Japan, Limited

Audio/Video Systems Division 10-1, 1cho me ,Oh w ata ri-m ach i,Ma eba shi - city,3 71- 85 43,J apa n

(No.MB675<Rev.002>)

Printed in Japan

VPT