Marantz AV7702mkII User manual

AV Pre Tuner
AV7702mkII /U1B/N1B
AV7702mkII
S1306V04DM/DG1607
Copyright 2016 D&M Holdings Inc. All rights reserved.
WARNING: Violators will be prosecuted to the maximum extent possible.
Ver. 4
•Some illustrations using in this service manual are slightly different from the actual set.
•Please use this service manual with referring to the operating instructions without fail.
•For purposes of improvement, specications and design are subject to change without notice.
Please refer to the
MODIFICATION NOTICE.
Service
Manual

Contents
ABOUT THIS MANUAL................................................................3
What you can do with this manual ...........................................3
Using Adobe Reader (Windows version)...................................4
SAFETY PRECAUTIONS...............................................................6
NOTE FOR SCHEMATIC DIAGRAM..............................................7
NOTE FOR PARTS LIST................................................................7
Instructions for handling semi-conductors and optical unit ...7
1. Ground for Human Body......................................................7
2. Ground for Workbench ........................................................7
TECHNICAL SPECIFICATIONS.....................................................9
DIMENSION ..............................................................................10
CAUTION IN SERVICING ...........................................................11
Initializing This Unit.................................................................11
JIG FOR SERVICING ..................................................................11
DISASSEMBLY ..........................................................................12
1. FRONT PANEL ASSY............................................................14
2. RADIATOR ASSY .................................................................14
3. DIGITAL PCB .......................................................................15
4. VIDEO PCB..........................................................................16
5. INPUT PCB ..........................................................................16
6. XLR PCB..............................................................................17
7. SMPS PCB ...........................................................................17
8. TRANS POWER....................................................................17
SPECIAL MODE.........................................................................18
Special mode setting button ..................................................18
1. Version Display Mode ........................................................19
2. Selecting the Mode for Service-related Operations...........23
2-1. DIAGNOSTIC MODE (Service Path Check Mode) ..............24
DIAGNOSTIC PATH DIAGRAM...........................................29
2-2. 232C Standby Clear Mode................................................68
2-3. Operation Info Mode........................................................68
2-4. TUNER STEP mode (N only) ..............................................69
3. PANEL / REMOTE LOCK Selection Mode ............................70
4. CY920 Reboot Mode ..........................................................71
5. CY920 Initialization Mode ..................................................71
JIG FOR SERVICING ..................................................................72
Procedure after Replacing the Printed circuit boards............75
Procedure after Replacing the Microprocessor, etc...............75
FIRMWARE UPDATE PROCEDURE............................................76
1. Updating via USB ...............................................................76
2. Updating via DPMS ............................................................85
SURROUND MODES AND PARAMETERS..................................92
TROUBLE SHOOTING................................................................95
1. POWER ...............................................................................95
2. Analog video......................................................................96
3. HDMI/DVI ...........................................................................99
4. AUDIO ..............................................................................101
5. Network/Bluetooth/USB ..................................................103
6. SMPS ................................................................................108
Audio Check PASS .................................................................110
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK................... 111
LEVEL DIAGRAM.....................................................................112
BLOCK DIAGRAM ...................................................................118
POWER DIAGRAM ..................................................................122
WIRING DIAGRAM..................................................................123
PRINTED CIRCUIT BOARDS ....................................................124
SCHEMATIC DIAGRAMS (01/39).............................................131
SCH01_DIGITAL CONNECT....................................................131
SCH02_DIGITAL POWER........................................................132
SCH03_MAIN CPU.................................................................133
SCH04_EXPANDER................................................................134
SCH05_CPU LEVEL CHG ........................................................135
SCH06_DIR ............................................................................136
SCH07_AUDIO PLD ...............................................................137
SCH08_DSP1 .........................................................................138
SCH09_DSP2 .........................................................................139
SCH10_DSP3 .........................................................................140
SCH11_DSP4 .........................................................................141
SCH12_ADC ..........................................................................142
SCH13_ZONE DAC ................................................................143
SCH14_CY920 .......................................................................144
SCH15_VIDEO DECODER.......................................................145
SCH16_HDMI SW2 ................................................................146
SCH17_HDMI SW1 ................................................................147
SCH18_VSP & IP & OSD .........................................................148
SCH19_VIDEO PLD ................................................................149
SCH20_HDMI TX & SCALER ...................................................150
SCH21_INPUT........................................................................151
SCH22_PREOUT.....................................................................152
SCH23_F-HDMI .....................................................................153
SCH24_A-VIDEO....................................................................154
SCH25_RC-5 & MX-PORT.......................................................155
SCH26_RS232C & TRIGGER....................................................156
SCH27_SIDE CNT...................................................................157
SCH28_FRONT CNT ...............................................................158
SCH29_MAIN DAC1...............................................................159
SCH30_MAIN DAC2...............................................................160
SCH31_XLR............................................................................161
SCH32_REGULATOR & TUNER...............................................162
SCH33_FRONT.......................................................................163
SCH34_H-DAM_AMP1 ..........................................................164
SCH35_H-DAM_AMP2 ..........................................................165
SCH36_H-DAM_AMP3 ..........................................................166
SCH37_H-DAM_AMP4 ..........................................................167
SCH38_H-DAM_AMP5 ..........................................................168
SCH39_SMPS.........................................................................169
EXPLODED VIEW ....................................................................170
PACKING VIEW .......................................................................171
SEMICONDUCTORS ................................................................172
1. IC's....................................................................................172
2. FL DISPLAY.......................................................................190
2

Jump to the target of a schematic diagram
connector
Click the Ref. No. of the target connector in the red
box around a schematic diagram connector.
•The screen jumps to the target connector.
• Page magnication stays the same as before the
jump.
CP401
CP106
v
ABOUT THIS MANUAL
Read the following information before using the service manual.
What you can do with this manual
Search for a Ref. No. (phrase)
(Ctrl+Shift+F)
You can use the search function in Acrobat Reader to
search for a Ref. No. in schematic diagrams, printed
wiring circuit diagrams, block diagrams, and parts
lists.
1. Press Ctrl+Shift+F on the keyboard.
• The Search window appears.
2. Enter the Ref. No. you want to search for in the
Search window, and then click the Search button.
• A list of search results appears.
3. Click an item on the list.
• The screen jumps to the page for that item, and the
search phrase is displayed.
Ctrl
Shift
F
3

Using Adobe Reader (Windows version)
• Properties
Click this button and check that the printer is set to a
suitable paper size.
• Page to print
Select the following checkbox.
"More Options" : "Current View"
• Page Sizing & Handling
Select the following checkbox.
"Size" / "Size Options" : "Fit"
Add notes to this data (Sign)
The Sign function lets you add notes to the data in
this manual.
Save the le once you have nished adding notes.
[Example using Adobe Reader X]
On the "View" menu, click "Sign".
• The Sign pane appears.
[Example using Adobe Reader 9]
On the "Document" menu, click "Sign".
Magnify schematic / printed circuit board
diagrams - 1
(Ctrl+Space, mouse operation)
Press Ctrl+Space on the keyboard and drag the
mouse to select the area you want to view.
• The selected area is magnied.
• When you want to move the area shown, hold
down Space and drag the mouse.
• When you want to show a full page view, press
Ctrl+0 on the keyboard.
Ctrl Space
0
Print a magnied part of the manual
The Properties dialog box and functions will vary depending on your printer.
1. Drag the mouse to magnify the part you want to print.
2. On the "File" menu, click "Print".
3. Congure the following settings in the Print dialog box.
4. Click the Print button to start printing.
4

Magnify schematic / printed circuit board
diagrams - 2
(Pan & Zoom function)
The Pan & Zoom function lets you see which part of
a magnied diagram is being shown in a separate
window.
[Example using Adobe Reader X]
On the "View" menu, point to "Zoom", and then
click "Pan & Zoom".
• The Pan & Zoom window appears on the screen.
[Example using Adobe Reader 9]
On the "Tools" menu, point to "Select & Zoom",
and then click "Pan & Zoom Window".
Magnify schematic / printed circuit board
diagrams - 3
(Loupe Tool function)
The Loupe Tool function lets you magnify a specic
part of a diagram in a separate window.
[Example using Adobe Reader X]
On the "View" menu, point to "Zoom", and then
click "Loupe Tool".
• The Loupe Tool window appears on the screen.
[Example using Adobe Reader 9]
On the "Tools" menu, point to "Select & Zoom",
and then click "Loupe Tool Window".
5

SAFETY PRECAUTIONS
The following items should be checked for continued protection of the customer and the service technician.
leakage current check
Before returning the set to the customer, be sure to carry out either (1) a leakage current check or (2) a line to chassis
resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the
power cord is less than 460 kohms, the set is defective.
Be sure to test for leakage current with the AC plug in both polarities, in addition, when the set's power is in each state
(on, off and standby mode), if applicable.
CAUTION Please heed the following cautions and instructions during servicing and
inspection.
◎Heed the cautions!
Cautions which are delicate in particular for servicing are
labeled on the cabinets, the parts and the chassis, etc. Be
sure to heed these cautions and the cautions described in
the handling instructions.
◎Cautions concerning electric shock!
(1) An AC voltage is impressed on this set, so if you touch
internal metal parts when the set is energized, you
may get an electric shock. Avoid getting an electric
shock, by using an isolating transformer and wearing
gloves when servicing while the set is energized, or
by unplugging the power cord when replacing parts,
for example.
(2) There are high voltage parts inside. Handle with extra
care when the set is energized.
◎ Caution concerning disassembly and assembly!
Through great care is taken when parts were
manufactured from sheet metal, there may be burrs on
the edges of parts. The burrs could cause injury if ngers
are moved across them in some rare cases. Wear gloves
to protect your hands.
◎Use only designated parts!
The set's parts have specic safety properties (re
resistance, voltage resistance, etc.). Be sure to use parts
which have the same properties for replacement. The
burrs have the same properties. In particular, for the
important safety parts that are indicated by the z mark
on schematic diagrams and parts lists, be sure to use the
designated parts.
◎ Be sure to mount parts and arrange the wires
as they were originally placed!
For safety seasons, some parts use tapes, tubes or other
insulating materials, and some parts are mounted away
from the surface of printed circuit boards. Care is also
taken with the positions of the wires by arranging them
and using clamps to keep them away from heating and
high voltage parts, so be sure to set everything back as it
was originally placed.
◎Make a safety check after servicing!
Check that all screws, parts and wires removed or
disconnected when servicing have been put back in
their original positions, check that no serviced parts have
deteriorate the area around. Then make an insulation
check on the external metal connectors and between the
blades of the power plug, and otherwise check that safety
is ensured.
(Insulation check procedure)
Unplug the power cord from the power outlet, disconnect
the antenna, plugs, etc., and on the power. Using a 500V
insulation resistance tester, check that the insulation
resistance value between the inplug and the externally
exposed metal parts (antenna terminal, headphones
terminal, input terminal, etc.) is 1MΩ or greater. If it is
less, the set must be inspected and repaired.
Many of the electric and the structural parts used in the
set have special safety properties. In most cases these
properties are difcult to distinguish by sight, and the use
of replacement parts with higher ratings (rated power
and withstand voltage) does not necessarily guarantee
that safety performance will be preserved. Parts with
safety properties are indicated as shown below on the
wiring diagrams and the parts list in this service manual.
Be sure to replace them with the parts which have the
designated part number.
(1) Schematic diagrams Indicated by the z mark.
(2) Parts lists Indicated by the z mark.
The use of parts other than the designated parts could
cause electric shocks, res or other dangerous situations.
CAUTION Concerning important safety
parts
6

NOTE FOR SCHEMATIC DIAGRAM
WARNING:
Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
CAUTION:
Before returning the set to the customer, be sure to carry out either (1) a leakage current check or (2) a line to chassis resistance check. If
the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the set
is defective.
WARNING:
DO NOT return the set to the customer unless the problem is identied and remedied.
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM / M=1,000,000 OHM
ALL CAPACITANCE VALUES ARE EXPRESSED IN MICRO FARAD, UNLESS OTHERWISE INDICATED. P INDICATES MICRO-MICRO FARAD. EACH
VOLTAGE AND CURRENT ARE MEASURED AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT
PRIOR NOTICE.
NOTE FOR PARTS LIST
1. Parts indicated by "nsp" on this table cannot be supplied.
2. When ordering a part, make a clear distinction between "1" and "I" (i) to avoid mis-supplying.
3. A part ordered without specifying its part number can not be supplied.
4. Part indicated by " ★" mark is not illustrated in the exploded view.
WARNING: Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
INSTRUCTIONS FOR HANDLING SEMI-CONDUCTORS AND OPTICAL UNIT
Electrostatic breakdown of the semi-conductors or optical pickup may occur due to a potential difference caused by
electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grounding band (1 MΩ) that is properly grounded to remove any static electricity that may be charged
on the body.
2. Ground for Workbench
Be sure to place a conductive sheet or copper plate with proper grounding (1 MΩ) on the workbench or other surface,
where the semi-conductors are to be placed. Because the static electricity charge on clothing will not escape through the
body grounding band, be careful to avoid contacting semi-conductors with your clothing
<Incorrect>
CBA
Grounding Band
Conductive Sheet or
Copper Plate
1MΩ
1MΩ
<Correct>
CBA
7

Personal notes:
8

TECHNICAL SPECIFICATIONS
nAudio section
• Analog
Input sensitivity/Input impedance : 200 mV/47 kΩ/kohms
Frequency response : 10 Hz – 100 kHz — +1, –3 dB (Direct mode)
S/N : 105 dB (IHF–A weighted, Direct mode)
Distortion : 0.005 % (20 Hz – 20 kHz) (Direct mode)
Rated output : Unbalanced RCA pre-output : 1.2 V
Balanced XLR pre-output: 2.4 V
• Digital
D/A output : Rated output — 2 V (at 0 dB playback)
Total harmonic distortion — 0.008 % (1 kHz, at 0 dB)
S/N ratio — 102 dB
Dynamic range — 100 dB
Digital input : Format — Digital audio interface
• Phono equalizer
Input sensitivity : 2.5 mV
RIAA deviation : ±1 dB (20 Hz to 20 kHz)
S/N : 74 dB (A weighting, with 5 mV input)
Distortion factor : 0.03 % (1 kHz, 3 V)
nVideo section
• Standard video connectors
Input/output level and impedance : 1 Vp-p, 75 Ω/ohms
Frequency response : 5 Hz – 10 MHz — 0, –3 dB
• Color component video connector
Input/output level and impedance : Y signal — 1 Vp-p, 75 Ω
PB / CB signal — 0.7 Vp-p, 75 Ω
PR / CR signal — 0.7 Vp-p, 75 Ω
Frequency response : 5 Hz - 60 MHz — 0, –3 dB
nTuner section
(Note : μV at 75 Ω, 0 dBf = 1 x 10–15 W)
Reception frequency range : FM 87.5 MHz - 107.9 MHz (for U)
FM 87.5 MHz - 108.0 MHz (for N)
AM 530 kHz - 1710 kHz (for U)
AM 522 kHz - 1611 kHz (for N)
Effective sensitivity : FM 1.5 μV (14.8 dBf) (for U)
FM 1.2 μV (12.8 dBf) (for N)
AM 20 μV (for U)
AM 18 μV (for N)
S/N ratio : MONO ― 78 dB (for U)
MONO ― 70 dB (for N)
STEREO ― 68 dB (for U)
STEREO ― 67 dB (for N)
HD ― 85 dB (for U)
Distortion : MONO ― 0.1 % (for U)
MONO ― 0.7 % (for N)
SRETEO ― 0.2 % (for U)
SRETEO ― 1.0 % (for N)
HD ― 0.02 % (for U)
nWireless LAN section
Network type (wireless LAN standard) : Conforming to IEEE 802.11b
Conforming to IEEE 802.11g
Conforming to IEEE 802.11n
(Wi-Fi® compliant)z1
Security : WEP 64 bit, WEP 128 bit
WPA/WPA2-PSK (AES)
WPA/WPA2-PSK (TKIP)
Radio frequency : 2.4 GHz
No. of channels : 1 - 11 ch (for U)
1 - 13 ch (for N)
z1 The Wi-Fi® CERTIFIED Logo and the Wi-Fi CERTIFIED On-Product Logo
are registered trademarks of the Wi-Fi Alliance.
nBluetooth section
Communications system : Bluetooth Version 2.1 + EDR
(Enhanced Data Rate)
Transmission power : Maximum 2.5 mW (Class 2)
Maximum communication range : Approx. 32.8 ft/10 m in line of sightz2
Frequency band : 2.4 GHz band
Modulation scheme : FHSS (Frequency-Hopping Spread Spectrum)
Supported proles : A2DP (Advanced Audio Distribution Prole)1.2
AVRCP (Audio Video Remote Control Prole)1.4
Corresponding codec : SBC, AAC
Transmission range (A2DP) : 20 Hz - 20,000 Hz
z2 The actual communication range varies depending on the inuence of
such factors as obstructions between devices, electromagnetic waves
from microwave ovens, static electricity, cordless phones, reception
sensitivity, antenna performance, operating system, application
software etc.
nGeneral
Power supply : (for U) : AC 120 V, 60 Hz
(for N) : AC 230 V, 50 Hz / 60 Hz
Power consumption : 60 W
Power consumption in standby mode : 0.2 W
Power consumption in CEC standby mode : 0.5 W
Power consumption in network standby mode : 2.7 W
For purposes of improvement, specications and design are subject to
change without notice.
9

.
1 3/8
(32)
2 (50)
2 1/8
(53)
1 5/8
(40)
1/2
(12)
6 3/4 (171) 7 3/8 (185)
9 3/4 (247)
14 1/4 (361) 16 1/4 (411)
3/4
(18)
10 5/8 (267) 15 1/2 (392)
7/8
(20)
2 (50) 13 1/2 (340)
5/8
(14)
17 3/8 (440)
2 3/8
(60)
DIMENSION
Unit : in. (mm)
Weight : 22 lbs 8 oz (10.2 kg)
10

CAUTION IN SERVICING
Initializing This Unit
Make sure to initialize this unit after replacing the microcomputer or any peripheral equipment, or the digital PCB.
1. Press the power button to turn off the power.
2. While holding down buttons "MOVIE" and "MUSIC" simultaneously, press the power button to turn on the power.
3. Release the buttons after conrming that the display ashes at 1-second intervals.
＊ The unit is initialized.
NOTE：• If the unit fails to enter the service mode in step 3, repeat the procedure from step 1.
• Initializing the device restores the customized settings to the factory settings. Write down your settings in advance and
recongure the settings after initialization.
JIG FOR SERVICING
Use the following jigs (extension cable kit) when repairing the PCBs.
Order with your dealer for the jigs your dealer if necessary.
8U-110084S : EXTENSION UNIT KIT : 1Set
8U-110136S : EXTENSION UNIT KIT : 1Set
(See page 72)
MUSICMOVIEX
11

DISASSEMBLY
• Remove each part following the ow below.
• Reassemble the removed parts in the reverse order.
• Read "Precautions During Work" before reassembling the removed parts.
• If wire bundles are removed or moved during adjustment or part replacement, reshape the wires after completing
the work. Failure to shape the wires correctly may cause problems such as noise.
FRONT PANEL ASSY
See "DISASSEMBLY"
1. FRONT PANEL ASSY
and "EXPLODED VIEW"
FRONT PCB
Ref. No. of EXPLODED VIEW : C5
HEAD PHONE PCB
Ref. No. of EXPLODED VIEW : C2
FRONT HDMI FFC CABLE PCB
Ref. No. of EXPLODED VIEW : C7
FRONT HDMI PCB
Ref. No. of EXPLODED VIEW : C3
FRONT SW PCB
Ref. No. of EXPLODED VIEW : C1
TOP COVER
MAIN TRANS
See "DISASSEMBLY"
8. MAIN TRANS
and "EXPLODED VIEW"
MAIN TRANS
Ref. No. of EXPLODED VIEW : C21
RADIATOR ASSY
See "DISASSEMBLY"
2. RADIATOR ASSY
and "EXPLODED VIEW"
H-DAM PCB
Ref. No. of EXPLODED VIEW : C10
GUIDE FFC1 PCB
Ref. No. of EXPLODED VIEW : C11
HEATSINK
Ref. No. of EXPLODED VIEW : M15
DIGITAL PCB ASSY
See "DISASSEMBLY"
3. DIGITAL PCB ASSY
and "EXPLODED VIEW"
DIGITAL PCB
Ref. No. of EXPLODED VIEW : C37
GUIDE FFC2 PCB
Ref. No. of EXPLODED VIEW : C36
CY920 MODULE ASSY
Ref. No. of EXPLODED VIEW : C39
INPUT PCB ASSY
See "DISASSEMBLY"
5. INPUT PCB ASSY
and "EXPLODED VIEW"
INPUT PCB
Ref. No. of EXPLODED VIEW : C30
VIDEO PCB ASSY
See "DISASSEMBLY"
4. VIDEO PCB ASSY
and "EXPLODED VIEW"
VIDEO PCB
Ref. No. of EXPLODED VIEW : C35
XLR PCB ASSY
See "DISASSEMBLY"
6. XLR PCB ASSY
and "EXPLODED VIEW"
XLR PCB
Ref. No. of EXPLODED VIEW : C16
FRONT CNT PCB
Ref. No. of EXPLODED VIEW : C13
SIDE C PCB
Ref. No. of EXPLODED VIEW : C14
FUSE PCB
Ref. No. of EXPLODED VIEW : C12
SMPS PCB
See "DISASSEMBLY"
7. SMPS PCB
and "EXPLODED VIEW"
SMPS PCB
Ref. No. of EXPLODED VIEW : C22
12

Explanatory Photos for DISASSEMBLY
• For the shooting direction of each photos used in this manual, see the photo below.
• A, B, C and D in the photo below indicate the shooting directions of photos.
• The photographs with no shooting direction indicated were taken from the top of the unit.
• Photos of AV7702mkII U are used in this manual.
The viewpoint of each photograph
(Shooting direction : X) [View from the top]
Front side
↑Shooting direction: A↑
↓Shooting direction: B↓
↓Shooting direction: D↓
↑Shooting direction: C↑
13

1. FRONT PANEL ASSY
Proceeding : TOP COVER →FRONT PANEL ASSY
(1) Remove the screws.
(2) Remove the screws. Cut the wire clamp, then remove the connector. Remove the FFC.
2. RADIATOR ASSY
Proceeding : TOP COVER →FRONT PANEL ASSY →RADIATOR ASSY
(1) Remove the screws.
(2) Cut the wire clamp, then remove the connector wire. Remove the screws.
View from the bottom x9
FFC FFC
CN602
CN321
x2 x2
STYLE PIN
Shooting direction: A
x3
↑Shooting direction: D↑↑Shooting direction: C↑
↑Shooting direction: A↑
CN920
CN921
CN922
CN923 CN483
CN481
CN484
CN482
CUTx4
x1 x1
14

3. DIGITAL PCB
Proceeding : TOP COVER →BACK CHASSIS →DIGITAL PCB
(1) Remove the screws.
(2) Cut the wire clamp, then remove the connector. Remove the FFC.
(3) Remove the connector.
Shooting direction: A
x2
x16
x50
x2
x2
FFC FFC
CN321
CN903
CN531 CUTx5
STYLE PIN
BN24A BN26A BN25A BN21A
BN23A
BN27A
15

4. VIDEO PCB
Proceeding : TOP COVER →BACK CHASSIS →DIGITAL PCB →VIDEO PCB
(1) Cut the wire clamp, then remove the connector.
5. INPUT PCB
Proceeding : TOP COVER →BACK CHASSIS →DIGITAL PCB →VIDEO PCB →INPUT PCB
(1) Remove the connector.
BN21B
BN28B
BN27B
CUT x3
STYLE PIN
BN26CBN24C
BN64C
BN23C
From HDAM PCB
From HDAM PCB
From HDAM PCB
From HDAM PCB
16

6. XLR PCB
Proceeding : TOP COVER →BACK CHASSIS →DIGITAL PCB →VIDEO PCB →INPUT PCB
→XLR PCB
(1) Remove the screws.
(2) Remove the connector.
(3) Remove the screws.
7. SMPS PCB
Proceeding : TOP COVER →BACK CHASSIS →DIGITAL PCB →SMPS PCB
See "EXPLODED VIEW" for instructions on removing the SMPS PCB.
8. TRANS POWER
Proceeding : TOP COVER →BACK CHASSIS →DIGITAL PCB →TRANS POWER
See "EXPLODED VIEW" for instructions on removing the transformer (TRANS).
View from the bottom
x3
↑Shooting direction: A↑
CN920
CN921
CN922
CN923
x2
x7
x2
17

SPECIAL MODE
Special mode setting button
b No. 1 - 5, 8 : While holding down buttons "A", "B" and "C" simultaneously, press the power button to turn on the power.
b No. 6, 7 : While the power is on, hold down buttons "A" and "B" for at least 3 seconds .
b No. 9 : While holding down buttons "A" and "B" simultaneously, insert the AC plug into the wall outlet to turn on the power.
No. Mode Button A Button B Descriptions
1Version Display
(u-COM / DSP Error Display) DIMMER STATUS
Displays the version of rmware such as the main rmware or DSP. Errors that
have occurred are displayed.
(See page 19)
2 Selecting the Mode for Service-related ZONE
SELECT BACK This is a display for turning on each service-related mode. Service-related modes: No. 2-1 - No. 2-4
2-1 Check the Video/Audio path Mode CURSOR
f/d-
This is a special mode for service conrmation used during repair work to
simplify the conrmation work for the Audio channel / video channel. (See
page 24)
2-2 232C Standby Clear Mode ↑ - Switches from 232C standby mode to normal standby mode.
(See page 68)
2-3 Operation Info Mode ↑ -
Displays the accumulated operating time of the unit, the number of times the
power was switched on, and the number of occurrences of each protection. (See
page 68)
2-4 TUNER STEP Mode
(N model only) ↑ - Enables reception STEP of the ANALOG TUNER to be changed. (See page 69)
3 User Initialization Mode GAME A-DSX Initializes backup data.
(Settings for the Installer Setup are not initialized.)
4 Factory Initialization Mode MOVIE MUSIC Initializes backup data.
(The settings for the Installer Setup is also initialized.)
5 PANEL / REMOTE LOCK Selection Mode BACK ENTER Start this unit in the PANEL/REMOTE LOCK selection mode so that PANEL LOCK
and Remote Lock can be switched between ON and OFF. (See page 70)
6 CY920 Reboot Mode M-DAX DYNAMIC
EQ The CY920 is restarted after CY920 hang up.
7 CY920 Initialization Mode BACK ENTER Enter this mode only after replacing Flash for CY920 and rewriting the rmware.
8 USB Update mode HDMI OUT STATUS Switches this unit to USB Update mode.
9 Forced USB All Device Write Mode HDMI OUT STATUS
Mode used when this unit cannot be recovered.
Forcibly switches this unit to USB update mode.
(See page 78)
NOTE:
When the volume indicator displays " ", the set has entered a special mode for developers.
In this case, RS-232C communication cannot be used.
To cancel this special mode, press and hold the "CURSOR f"and "STATUS" buttons for 3 seconds and longer. When the volume
indicator returns to the normal display, RS-232C communication can be used.
X
0
BACK ENTER
DYNAMIC
VOL
DYNAMIC
EQ M-DAX
DIMMER
STATUS
ZONE
SELECT
GAME
MUSIC
MOVIE
HDMI
OUT
A-DSX
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1. Version Display Mode
1.1. Actions
Version information is displayed when the device is started in this mode.
1.2. Starting up
While holding down buttons "DIMMER" and "STATUS" simultaneously, press the power button to turn on the power.
then press the "STATUS" button to display the information in section 1.3 on the display.
b The version list is also displayed on GUI while the version is displayed on the display.
1.3. Display Order
Error information("See "1.4. Error display") → q Model destination information, Serial Number
→ w Firmware Package Version → e Main µ-com, Main 1st Boot Loader Version → r DSP1/2/3/4 ROM
→ t Audio, Video PLD → y GUI SFLASH → u Ethernet 1st Boot Loader, Hardware ID
→ i Ethernet 2nd Boot Loader, Rhapsody Flag → o Ethernet IMAGE → Q0 Ethernet MAC ADDRESS information
→ Q1 BT MAC ADDRESS information → Q2 HD Radio (For U Region)
→ Q3 MultEQ Pro APP (Displayed when Audyssey Pro is complete)
→ Q4 MultEQ Pro ICL (Displayed when Audyssey Pro is complete)
q Model destination information, Serial Number：
FLD L1 AV7702mkII U
FLD L1 AV7702mkII N
FLD L2 S/N. **********
w Firmware Package Version：
FLD L1 Firm. Package
L2 Ver.:****
e Main µ-com, Main 1st Boot Loader Version:
FLD L1 Main :********
L2 Main FBL:**.**
r DSP1/2/3/4 ROM :
FLD L1 DSP1 :**.**
L2 DSP2 :**.**
FLD L1 DSP3 :**.**
L2 DSP4 :**.**
t Audio, Video PLD :
FLD L1 Audio PLD:**.**
L2 Video PLD:**.**
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y GUI SFLASH :
FLD L1 GUI :@@$\****
@ ： Model code, $ ： Brand code, \ ： Region code (U=1, N=2, K=5, F=4, ALL=0)
u Ethernet 1st Boot Loader, Hardware ID :
FLD L1 Ethernet FBL
L2 ******-AA
AA : Hardware ID
i Ethernet 2nd Boot Loader, Rhapsody Flag :
FLD L1 Ethernet SBL
L2 *************-BB
BB : Rhapsody Flag
o Ethernet IMAGE :
FLD L1 Ethernet IMG
L2 *************
Q0 Ethernet MAC ADDRESS information：
FLD L1 * N E T M A C A d d r e s s
L2 ******-******
Q1 BT MAC ADDRESS information：
FLD L1 * B T M A C A d d r e s s
L2 ******-******
Q2 HD Radio (for U Region) :
FLD L1 *HD :********-
L2 XYYYY.ZZZ
*Software Congration
XRelease Typte
YBase Version No.
ZBuild No.
Q3 MultEQ Pro APP :
FLD L1 * M u l t E Q P r o A P P
L2 **.**.**.****
Q4 MultEQ Pro ICL :
FLD L1 * M u l t E Q P r o I C L
L2 **.**.**.****
20