Sony TA-ZH1ES User manual

SERVICE MANUAL
Sony Video & Sound Products Inc.
TA-ZH1ES
HEADPHONE AMPLIFIER
9-896-334-01
2016J33-1
© 2016.10
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Chinese Model
Ver. 1.0 2016.10
SPECIFICATIONS
Note:
Be sure to keep your PC used for service and
checking of this unit always updated with the
latest version of your anti-virus software.
In case a virus affected unit was found during
service, contact your Service Headquarters.
Section for headphone amplier
PHONES (headphones)section
Rated power output
BALANCED: 1,200 mW + 1,200 mW (32 Ω,
THD 1%)
Frequency characteristics
BALANCED: 4 Hz - 80 kHz (-3 dB, D.C.PHASE
LINEARIZER OFF)
Playing frequency range
BALANCED: 4 Hz - 200 kHz (D.C.PHASE
LINEARIZER OFF)
Supported impedance
Input section
USB-B section
Supported format
PCM 2ch: 44.1/48/88.2/96/176.4/192/352.8/
384/705.6/768 kHz (16/24/32 bit)
DSD 2ch: 2.8/5.6/11.2/22.4 MHz (1 bit)
WALKMAN port (for WALKMAN®/Xperia™
connection)section
Supported format
PCM 2ch: 44.1/48/88.2/96/176.4/192/352.8/
384 kHz (16/24/32 bit)
DSD 2ch: 2.8/5.6/11.2 MHz (1 bit)
COAX (coaxial) IN section
Input impedance
75 Ω
Supported format
PCM 2ch: 32/44.1/48/88.2/96/176.4/192 kHz
(16/24 bit)
OPT(optical)IN section
Supported format
PCM 2ch: 32/44.1/48/88.2/96 kHz (16/24 bit)
LINEIN L/R section
Maximum input voltage
2 Vrms
Input impedance
50 kΩ
Pre-out section
PRE OUT L/R section
Output voltage
2 Vrms (Fixed)
Output impedance
100 Ω
General
Powerrequirements
Powerconsumption
35 W
Power consumption (during standby mode)
0.3 W
Dimensions (w/h/d) (including projecting parts)
Approx. 210 mm × 65 mm × 314 mm
(8.27 in × 2.56 in × 12.37 in)
Mass
Approx. 4.4 kg (9.7 lb)
Supplied Accessories
Headphone amplier
AC power cord (mains lead)
USB cable (USB-A/USB-B)
Digital cable for WALKMAN®
Remote control
R03 (size AAA) batteries
Operating instructions
Precautions/Specications
Design and specications are subject to
change without notice.
Area Supported impedance
U.S.A. and
Canada
12 Ω - 600 Ω
Other countries 8 Ω - 600 Ω
Area Power requirements
U.S.A., Canada
and Taiwan
120 V, 50/60 Hz
Other countries 220 V - 240 V, 50/60 Hz
On Copyrights
WALKMAN® and WALKMAN® logo are
registered trademarks of Sony
Corporation.
“Xperia” and “Xperia Tablet” are
trademarks of Sony Mobile
Communications AB.
Macintosh and Mac OS are trademarks of
Apple Inc., registered in the U.S. and other
countries.
Windows, the Windows logo, and
Windows Media are either registered
trademarks or trademarks of Microsoft
Corporation in the United States and/or
other countries.
This product is protected by certain
intellectual property rights of Microsoft
Corporation. Use or distribution of such
technology outside of this product is
prohibited without a license from
Microsoft or an authorized Microsoft
subsidiary.
The system names and product names
indicated in this manual are generally the
trademarks or registered trademarks of
the manufacturer.
™ and ® marks are omitted in this manual.

TA-ZH1ES
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 soldering iron around 270 °C during
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.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)
1.5 kΩ0.15 μF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
SAFETY-RELATED COMPONENT WARNING!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON 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 PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC-
TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.

TA-ZH1ES
3
1. SERVICING NOTES ............................................. 4
2. DISASSEMBLY
2-1. Disassembly Flow........................................................... 6
2-2. Plate (BTM) Block.......................................................... 7
2-3. Chassis Block-1 .............................................................. 7
2-4. Chassis Block-2 .............................................................. 8
2-5. Top Panel Block, Frame (Wall) Block ............................ 9
2-6. DISPLAY Board Block................................................... 10
2-7. DISPLAY Board, OLED Display (OLED1)................... 10
2-8. USB MICRO Board........................................................ 11
2-9. AL Knob (VOL), Bearing (VOL) ................................... 11
2-10. VOL Board...................................................................... 12
2-11. XLR CONNECTOR Board, 4.4 JACK Board................ 12
2-12. 6.3 JACK Board.............................................................. 13
2-13. 3.5 JACK Board Block ................................................... 13
2-14. 3.5 JACK Board, Holder (Jack)...................................... 14
2-15. Shield (Inlet), Fuse (F101).............................................. 14
2-16. AC Inlet (AC1)-1 ............................................................ 15
2-17. AC Inlet (AC1)-2 ............................................................ 16
2-18. Power Transformer (T001)-1 .......................................... 16
2-19. Power Transformer (T001)-2, Plate (TR) ....................... 17
2-20. 317 REG Board, 7818 REG Board, 7918 REG Board ... 17
2-21. USB A Board .................................................................. 18
2-22. POWER SUPPLY Board ................................................ 18
2-23. DIGITAL Board.............................................................. 19
2-24. LINE IN Board, LINE OUT Board, LPF Board............. 20
2-25. DSP Board....................................................................... 21
2-26. Service Position .............................................................. 21
3. TEST MODE ............................................................ 22
4. TROUBLESHOOTING .......................................... 24
5. DIAGRAMS
5-1. Block Diagram - INPUT Section -.................................. 34
5-2. Block Diagram - DSP Section - ...................................... 35
5-3. Block Diagram - AMP Section - ..................................... 36
5-4. Block Diagram - OUTPUT Section -.............................. 37
5-5. Block Diagram
- PANEL/POWER SUPPLY Section -............................ 38
5-6. Printed Wiring Board - DIGITAL Board (Side A) - ....... 40
TABLE OF CONTENTS
5-7. Printed Wiring Board - DIGITAL Board (Side B) - ....... 41
5-8. Schematic Diagram - DIGITAL Board (1/10) -.............. 42
5-9. Schematic Diagram - DIGITAL Board (2/10) -.............. 43
5-10. Schematic Diagram - DIGITAL Board (3/10) -.............. 44
5-11. Schematic Diagram - DIGITAL Board (4/10) -.............. 45
5-12. Schematic Diagram - DIGITAL Board (5/10) -.............. 46
5-13. Schematic Diagram - DIGITAL Board (6/10) -.............. 47
5-14. Schematic Diagram - DIGITAL Board (7/10) -.............. 48
5-15. Schematic Diagram - DIGITAL Board (8/10) -.............. 49
5-16. Schematic Diagram - DIGITAL Board (9/10) -.............. 50
5-17. Schematic Diagram - DIGITAL Board (10/10) -............ 51
5-18. Schematic Diagram - DSP Board (1/2) - ........................ 52
5-19. Schematic Diagram - DSP Board (2/2) - ........................ 53
5-20. Printed Wiring Board - DSP Board - .............................. 54
5-21. Printed Wiring Board - LPF Board -............................... 54
5-22. Schematic Diagram - LPF Board - ................................. 55
5-23. Printed Wiring Boards - LINE/USB Section -................ 56
5-24. Schematic Diagram - LINE/USB Section - .................... 57
5-25. Printed Wiring Board - 3.5 JACK Board -...................... 58
5-26. Schematic Diagram - 3.5 JACK Board - ........................ 59
5-27. Printed Wiring Boards - VOLUME/JACK Section -...... 60
5-28. Schematic Diagram - VOLUME/JACK Section -.......... 61
5-29. Printed Wiring Board - DISPLAY Board - ..................... 62
5-30. Schematic Diagram - DISPLAY Board - ........................ 63
5-31. Printed Wiring Boards - REGULATOR Section - .......... 64
5-32. Schematic Diagram - REGULATOR Section - .............. 64
5-33. Schematic Diagram - POWER SUPPLY Board - ........... 66
5-34. Printed Wiring Board - POWER SUPPLY Board - ........ 67
6. EXPLODED VIEWS
6-1. Bottom Plate Section ...................................................... 94
6-2. Chassis Section ............................................................... 95
6-3. Top Panel Section ........................................................... 96
6-4. Case Section.................................................................... 97
6-5. Power Transformer Section ............................................ 98
6-6. DIGITAL Board Section................................................. 99
6-7. Back Panel Section ......................................................... 100
7. ELECTRICAL PARTS LIST .............................. 101
Accessories are given in the last of the electrical parts list.

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4
SECTION 1
SERVICING NOTES
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
CAPACITOR ELECTRICAL DISCHARGE PROCESSING
For the electric shock prevention, perform the discharge process-
ing by connecting the resistor at both ends of capacitor with refer-
ring to the figure below.
Note: Resistor for perform the discharge, be sure to using a resistor of
800 /2 W or higher.
800 :/2 W
C108
– DIGITAL Board (Side B) –
“PROTECTOR” APPEARS IN THE DISPLAY WINDOW
“PROTECTOR” appears if an abnormal current is carried on the
headphone jack, or the temperature in the amplifier rises abnor-
mally. In this case, remove the headphone plug from the amplifier,
then press [1] (power).
The SERVICING NOTES contains important information for servicing. Be sure to read this section before repairing the unit.
DESTINATION IDENTIFICATION
Distinguish by Part No. and Destination code of the model number
label on the bottom side of the main unit.
MODEL NUMBER LABEL
CH
US, CND, CEL
– Bottom view –
Part No.
Destination code
Part No.
Destination code
Destination Part No. Destination
code
CEL model 4-594-840-0[] CEL
CH model 4-594-842-0[] CN4
US, CND models 4-599-213-0[] UC2
DESTINATION ABBREVIATIONS
The following abbreviations for model destinations are used in this
service manual.
• Abbreviations
CH : Chinese model
CEL : European, East European, CIS area, Middle East area,
South East Asia area, Hong Kong, Korean, Australian
and New Zealand models
CND : Canadian model
NOTE OF REPLACING THE ELECTRICAL PARTS ON
EACH BOARDS FOR REPAIRING
Among mounted electrical parts on each boards, only parts that
are described in the electrical parts list can be replaced for repair.
The parts that are not described in the electrical parts list cannot be
replaced with single for repairing.

TA-ZH1ES
5
CHECKING THE OPERATION
Input systems:
Connect the Walkman, smartphone, AV equipment, PC and so on
corresponding to this unit, and check the operation.
For the equipment to connecting, refer to the instruction manual.
Output systems:
Since the balanced output and unbalanced output Path are differ-
ent, both those output are confirmation.
Equipment for the confirmation, recommend the following.
• Stereo Headphones MDR-1A
• Headphone cable MUC-S20BL1
Operation checking software:
For each operation checks, download the following software from
the support website etc. of Sony as necessary, and use them.
For details of the method etc. of download and install, refer to the
instruction manual.
• Media Go (Management and playback of music including Hi-
Res sound quality that it saved on the PC)
• Hi-Res Audio Player (High quality playback of music includ-
ing Hi-Res sound quality that it saved on the PC (Bit Perfect
play back by ASIO driver))
• Driver for USB terminal (Driver needed in order to use this unit in
Windows OS (It is not necessary to install the driver in Mac OS))
Note: For the Windows 7/Windows 8/Windows 8.1/Windows 10, the driv-
er for the USB port is installed automatically when the amplifier is
detected by the PC.
(If the driver is not installed for Windows 7/Windows 8/Windows
8.1/Windows 10, download from the support website. If the Win-
dows Vista, download and install from the support website)
AC INLET CHANGE AND SHIELD (INLET) DELETION
The AC inlet has been changed in the middle of production, and
the color of the cable has changed.
Moreover, the shield (inlet) that surround the AC inlet is deleted
with change of AC inlet, only for US, CND models.
Please reference to the figure below.
Former type New type
All models
Orange
White
AC inlet Brown
Black
AC inlet
US, CND
models
only Chassis
section
Shield (inlet)
AC inlet
Chassis
section
AC inlet

TA-ZH1ES
6
SECTION 2
DISASSEMBLY
• This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
2-2. PLATE (BTM) BLOCK
(Page 7)
2-3. CHASSIS BLOCK-1
(Page 7)
2-4. CHASSIS BLOCK-2
(Page 8)
2-5. TOP PANEL BLOCK,
FRAME (WALL) BLOCK
(Page 9)
2-6. DISPLAY BOARD BLOCK
(Page 10)
2-7. DISPLAY BOARD,
OLED DISPLAY (OLED1)
(Page 10)
2-8. USB MICRO BOARD
(Page 11)
2-9. AL KNOB (VOL),
BEARING (VOL)
(Page 11)
2-10. VOL BOARD
(Page 12)
2-11. XLR CONNECTOR BOARD,
4.4 JACK BOARD
(Page 12)
2-12. 6.3 JACK BOARD
(Page 13)
2-13. 3.5 JACK BOARD BLOCK
(Page 13)
2-14. 3.5 JACK BOARD, HOLDER (JACK)
(Page 14)
2-15. SHIELD (INLET), FUSE (F101)
(Page 14)
2-16. AC INLET (AC1)-1
(Page 15)
2-17. AC INLET (AC1)-2
(Page 16)
2-18. POWER TRANSFORMER (T001)-1
(Page 16)
2-19. POWER TRANSFORMER (T001)-2,
PLATE (TR)
(Page 17)
2-20. 317 REG BOARD, 7818 REG BOARD, 7918 REG BOARD
(Page 17)
2-23. DIGITAL BOARD
(Page 19)
2-21. USB A BOARD
(Page 18)
2-22. POWER SUPPLY BOARD
(Page 18)
2-24. LINE IN BOARD,
LINE OUT BOARD,
LPF BOARD
(Page 20)
2-25. DSP BOARD
(Page 21)
2-26. SERVICE POSITION
(Page 21)
SET
TOP PANEL BLOCK
FRAME (WALL) BLOCK

TA-ZH1ES
7
Note: Follow the disassembly procedure in the numerical order given.
2-2. PLATE (BTM) BLOCK
2-3. CHASSIS BLOCK-1
• Continued on 2-4 (page 8).
1eight screws
(BVTP3 u8)
3plate (BTM) block
(Including the plate (BTM-IN))
front side
rear side
top side
plate (BTM) block
(Including the plate (BTM-IN))
1eight screws
(BVTP3 u8)
front side
ventilation hole
hex wrench,
etc.
2Insert a hex wrench, etc. into a ventilation
hole on the plate (BTM) block and lift the
plate (BTM) block.
front side
rear side
top side
front side
– Bottom view –
3DVWLQJSRVLWLRQRIWKHFXVKLRQ&=$
cushion
(CZ2-A)
cushion
(CZ2-A)
cushion
(CZ2-A)
3two screws
(BVTP3 u8)
1cushion
(CZ2-A)
1cushion (CZ2-A)
2USB MICRO
board cable
connector
(CN502)
3two screws
(BVTP3 u8)
4two screws
(BVTP3 u8)
4two screws
(BVTP3 u8)
4four screws
(BVTP3 u8)
1cushion
(CZ2-A)
cushion
(CZ2-A)
cushion
(CZ2-A)
OK NG
USB cable
LINE OUT
cable
LINE OUT
cable
USB cable
Gap.
Separate the LINE OUT cable and USB cable at this area
and then fix them in place with the cushion (CZ2-A).

TA-ZH1ES
8
2-4. CHASSIS BLOCK-2
1RWHDERXWLQVWDOOLQJWKHFKDVVLVEORFN
Note 1: When installing the chassis block, push the cables into
the inside and be careful so that they do not get pinched.
front
side
rear side
top side
bottom side
Press.
chassis block
front side
front side
Press. Press.
chassis block
chassis block
hole
frame (wall) block back panel
hole
frame (wall) block
DIGITAL
board
clamp filter
sheet (POW)
+RZWRLQVWDOOWKHFODPSILOWHU
)&
30 mm
1clamp filter
3close 4Lock the
two claws.
5seal cushion
3Open the chassis block
in the direction of the arrow.
43.5 JACK board cable
connector (CN011: 7 pin)
56.3 JACK board cable
connector (CN004: 7 pin)
63.5 JACK board cable
connector (CN003: 6 pin) 7XLR CONNECTOR board
and 4.4 JACK board cable
connector (CN006: 13 pin)
83.5 JACK board cable
connector (CN010: 8 pin)
0Remove the DISPLAY
board cable from the
five wiring stoppers.
qd DISPLAY board
cable connector
(CN100: 2 pin)
qf chassis block
qs DISPLAY board
cable connector
(CN603: 9 pin)
qa DISPLAY board
cable connector
(CN604: 8 pin)
9Draw the USB MICRO board
cable out of the slit.
slit
qg seal
cushion
qh clamp
filter
(FC1)
1Lift the chassis block in the direction of the arrow
and pull out the back panel of the chassis block
from the hole on the frame (wall) block.
Pull the DISPLAY board cable in the direction of the arrow.
2Wrap the cable
around.
6Wrap around.
frame (wall) block
1RWHDERXWLQVWDOOLQJWKHFKDVVLVEORFN
slit 2Pass the USB MICRO board cable
through the slit of the chassis block.
DISPLAY board cable
connector (8 pin)
XLR CONNECTOR board
screw hole
Attach in order from 1to 6.
Note 2: When installing the chassis block, take care so that
the DISPLAY board cable does not get caught between
the screw hole on the frame (wall) block and the chassis
block, and between the XLR CONNECTOR board and
the chassis block.

TA-ZH1ES
9
2-5. TOP PANEL BLOCK, FRAME (WALL) BLOCK
:LUHVHWWLQJ
front side
rear side
top side
wiring stopper
front
side
wiring stopper
DISPLAY board
–%RWWRPYLHZ–
2three screws
(BVTP3 u10)
8frame (wall) block
3XLR CONNECTOR
board wire with
lug terminal
1Remove the DISPLAY board cable
from the two wiring stoppers. 2screw
(BVTP3 u10)
2screw
(BVTP3 u10)
2screw
(BVTP3 u10)
2screw
(BVTP3 u10)
2screw
(BVTP3 u10)
3VOL board wire
with lug terminal
front
side
rear side
DISPLAY board
bottom
side
frame (wall)
block
rear side
top panel block
1RWHDERXWLQVWDOOLQJWKHWRSSDQHOEORFN
total eight
screw hole
pillars
4Open the top panel
block in the direction
of the arrow.
5DISPLAY board
cable connector
(CN4252: 2 pin)
6DISPLAY board
cable connector
(CN5003: 7 pin)
7top panel block
eight screw hole pillars
Note: When installing the top panel block, take care so that the cables
are not pinched at the eight screw hole pillars of the frame (wall)
block and the top panel block.
bottom
side
CN4002
CN4003 CN4006 CN4001
S4001
screw
hole
pillar
Installation
direction
for the lug
terminal.
top side
Push the wire with lug terminal
toward the screw hole pillar to
keep it away from the S4001.
Push the wiring stopper to the outer side
to keep the DISPLAY board cable away
from the CN4002.
Push the XLR CONNECTOR board
wire with lug terminal to the inside.

TA-ZH1ES
10
front side
rear side
top side
DISPLAY board
screw hole
guide line
cushion
(LED)
3DVWLQJSRVLWLRQRIWKHFXVKLRQ/('
top panel block
2screw
(BVTP3 u6) 1cushion (LED)
2six screws
(BVTP3 u6)
2screw
(BVTP3 u6)
3wiring stopper
4DISPLAY board block
3wiring
stopper
Note: Be careful that it does not obstruct
the screw hole.
front side
OK
NGNG
DISPLAY
board guide line
cushion
(LED)
screw
hole
cushion
(LED)
screw
hole
cushion
(LED)
The cushion (LED) is in
contact with the screw hole.
The cushion (LED) is
overlapping the screw hole.
2-6. DISPLAY BOARD BLOCK
2-7. DISPLAY BOARD, OLED DISPLAY (OLED1)
front side
rear side
top side
DISPLAY board
guide line
3DVWLQJSRVLWLRQRIWKHFXVKLRQZLQGRZ
guide
line
3DVWLQJSRVLWLRQRIWKHFXVKLRQGLVSOD\
This side is the
terminal side.
cushion
(window)
cushion
(window)
holder (EL)
OLED display
Bend. cushion (display)
tape (OLED)
3two claws
2cushion
(display)
1knob
(gain)
3two claws
4connector
(CN4004)
5DISPLAY board
6two cushions
(window)
9OLED display (OLED1)
8holder (EL) block
7Peel the OLED display off
of the holder (EL) block.
DISPLAY board
cushion (display)
display side
bottom
side

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11
2-8. USB MICRO BOARD
2-9. AL KNOB (VOL), BEARING (VOL)
front side
rear side
top side
hole
micro USB connector
rib
hole
top side
front side
– Frame (wall) right view –
hole
,QVtallatiRQ SRVitiRQ RI the 86% 0,&52
ERarGElRFN
2claw
1screw (BVTP3 u8)
4USB MICRO
board block
3Draw the micro
USB connector
out of the hole.
5Remove the USB MICRO
board block in the direction
of the arrow.
8USB MICRO board
Note: When installing the USB MICRO board,
align the hole and rib.
7connector
(CN4203)
6ground (USB)
,QVtallatiRQ GireFtiRQ IRr the FaEle
USB MICRO board
(CN4203: 9 pin)
DIGITAL board
(CN502: 10 pin)
tape
Check the length from the tape to
the connectors, and insert the end
of the shorter length into the USB
MICRO board connector.
front side
rear side
top side
hole
AL knob (VOL)
Align the D-shaped parts of the rotary encoder
and AL knob (VOL) and insert.
– Bottom view –
front
side
hole
rib
AL knob
(VOL)
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rotary encoder
4AL knob (VOL)
flat point screw (HEX. 3 u4)
5bearing (VOL)
Note 2: When installing the bearing (VOL),
align the hole and rib.
1Rotate the AL knob (VOL) to
align the hole and flat point
screw (HEX. 3 × 4).
2Use a hex wrench to
remove the flat point
screw (HEX. 3 × 4).
hex wrench
3flat point screw
(HEX. 3 u4)
VOL board
Push the AL knob
(VOL) straight all
the way in.
Note 1: Push in the AL knob (VOL) while taking
care not to push the VOL board.

TA-ZH1ES
12
2-10. VOL BOARD
2-11. XLR CONNECTOR BOARD, 4.4 JACK BOARD
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–6LGHYLHZ–
front side
rear side
top side
groove
boss
collar (damper)
hole
collar (damper)
Not deformed. Deformed.
OK NG
VOL board
collar (damper)
1three screws
(BVTP2.6 u8)
4housing (VOL)
3screw
(BVTP3 u10)
2Remove the VOL board block
in the direction of the arrow.
Note: When installing the VOL
board block, align the
hole and boss.
3screw
(BVTP3 u10)
3screw
(BVTP3 u10)
5bushing (damper)
5bushing
(damper)
6collar (damper)
5bushing
(damper)
6collar (damper)
6collar (damper)
7VOL board
front side
rear side
top side
bottom side
hole
4.4 JACK board
hole
– Rear view –
:ire VeWWiQJ
XLR CONNECTOR board
3.5 JACK board wiring stopper
1Remove the cables of the
XLR CONNECTOR board
and 4.4 JACK board from
the wiring stopper.
6Draw the jack out
of the hole.
3Draw the connector
out of the hole. 5two screws
(BVTP2.6 u8)
74.4 JACK board
2two screws
(BVTP2.6 u8)
4XLR CONNECTOR board
Note: When installing the XLR CONNECTOR board,
pull out the wire with lug terminal toward the
rear side.
wire with lug terminal

TA-ZH1ES
13
2-12. 6.3 JACK BOARD
2-13. 3.5 JACK BOARD BLOCK
2Draw the jack out
of the hole.
1two screws
(BVTP2.6 u8)
36.3 JACK board
front side
rear side top side
hole
bottom side
total seven indicators (HP)
2Remove the 3.5 JACK board block
in the direction of the arrow.
Note: When removing the 3.5 JACK board block,
make sure to remove it straight to the rear side.
Removing it in any other direction may
damage the indicators (HP).
1two screws
(BVTP3 u8)
33.5 JACK board block
front side
rear side top side
bottom side

TA-ZH1ES
14
2-14. 3.5 JACK BOARD, HOLDER (JACK)
2-15. SHIELD (INLET), FUSE (F101)
front side
rear side
top side
cushion (LED)
Press.
boss
rear side
hole
cushion (LED)
Bend.
Align with
the corner.
holder (jack)
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3.5 JACK board
63.5 JACK board
Note: When installing the 3.5 JACK
board, align the hole and boss.
4Remove the 3.5 JACK board block
in the direction of the arrow.
2screw
(BVTP2.6 u8)
1cushion
(LED)
9holder (jack)
2three screws
(BVTP2.6 u8)
2screw
(BVTP2.6 u8)
2screw
(BVTP2.6 u8)
3wiring
stopper
5connector
(CN5002)
7ground (HP-L) block
8ground (HP-S)
front side
rear side bottom side
1screw
(BV3 u8)
3shield (inlet)
2Remove the shield
(inlet) in the direction
of the arrow.
4fuse (F101)
Note: The shield (inlet) has been deleted
in the middle of production.
(US, CND only)

TA-ZH1ES
15
2-16. AC INLET (AC1)-1
• Continued on 2-17 (page 16).
Note 3: During reassembly, use new cable ties
to fasten the cables back in place as
they were before disassembly.
front side
rear side bottom side
AC inlet
1Cut the cable tie.
2AC inlet cable connector
(CN102)
rear side rear side
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–7RSYLHZ–
OK NG
terminal
terminal
AC inlet
AC inlet
guide line
C113
DIGITAL board CN102
CN102
AC inlet terminals AC inlet terminals
shield (inlet) hole shield (inlet) hole
The cables are in
between the AC
inlet terminals.
The cables are outside
of the AC inlet terminals.
The cables are not visible
when looking at the shield
(inlet) hole from the top.
The cables are visible when
looking at the shield (inlet)
hole from the top.
1Pass through between the
terminals of the AC inlet.
2Insert into the
connector
(CN102).
3Secure with
a cable tie.
4Push in between
C113 and CN102.
Note 2: The shield (inlet) has been deleted in the middle of production.
Note 1: The color of the AC inlet cable has been changed in the middle
of production. The cable color of the former type is used here.

TA-ZH1ES
16
2-17. AC INLET (AC1)-2
2-18. POWER TRANSFORMER (T001)-1
• Continued on 2-19 (page 17).
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–5HDUYLHZ–
front side
rear side
hole
bottom side
top side
2Draw the AC inlet cable
out of the hole.
1two screws (BV/ring)
(L = 8.0 mm)
3AC inlet
(AC1)
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UHDUGLUHFWLRQ
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OK
NG
front side
rear side
RY100
bottom side
–7RSYLHZ–
rear
side
rear
side
front side
front
side
RY100
wiring stopper
wiring stopper
power
transformer
cable
power
transformer
cable
power
transformer
cable
power
transformer
DIGITAL board
power transformer
cable
wiring
stopper
1connector (CN300)
5screw
(BV3 u8)
3power transformer cable
[red/black/red] connector
(CN300)
6power transformer wire
with lug terminal
1Remove the power transformer
cable from the wiring stopper.
4power transformer cable connector (CN101)
[orange/white]: US, CND
[red/white]: CEL, CH 1Remove the power transformer
cable from the wiring stopper.
Passed over
the RY100.
Passed to the side
of the RY100.
4Secure with the
wiring stopper.
3Twist the power transformer
cable twice.
2Push into
the gaps.
2Pull out the power transformer
cable from the gaps.
[white]
[orange]: US, CND
[red]: CEL, CH
[white]
[orange]: US, CND
[red]: CEL, CH
Attach in order from 1to 4.
Note 2: Check that the power transformer cable
is not on top of the DIGITAL board.
Note 1: Secure so that the power
transformer cable is not on
top of the DIGITAL board.
Wrap the cable [orange or red] around
the cable [white] from the inner side.
The cable [orange or red] is not
wrapped around the cable [white].

TA-ZH1ES
17
2-19. POWER TRANSFORMER (T001)-2, PLATE (TR)
2-20. 317 REG BOARD, 7818 REG BOARD, 7918 REG BOARD
front side
rear side bottom side
round shape round shape
top side bottom side
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4Remove the plate (TR)
in the direction of the
arrow.
1screw
(BV3 u8)
3power transformer
(T001)
1screw (BV3 u8)
1screw
(BV3 u8)
1screw (BV3 u8)
2wiring stopper
2wiring stopper
2wiring
stopper
5plate (TR)
Note: When installing the plate (TR), check that the round
shapes are in the correct orientation.
Round shapes engraved. Round shapes not engraved.
front side
rear side
bottom side
CN301
CN302
CN303
1screw
(BV3 u8)
2leaf spring (IC)
1screw
(BV3 u8)
1screw
(BV3 u8)
47818 REG
board
2leaf spring (IC)
2leaf spring (IC)
3connector
(CN351)
3connector
(CN373)
3connector
(CN361)
4317 REG
board
47918 REG
board
DIGITAL board
DIGITAL board
connector
connector
needle-nosed pliers,
etc.
317 REG board,
7818 REG board,
7918 REG board
Note: When removing the 317 REG board, 7818 REG board,
or 7918 REG board, make sure to hold the board with
needle-nosed pliers, etc., and remove the connector
perpendicularly.
If you do not remove it perpendicularly, the connector
on the DIGITAL board may get damaged.
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TA-ZH1ES
18
2-21. USB A BOARD
2-22. POWER SUPPLY BOARD
front side
rear side
bottom side
4Remove the USB A board block
in the direction of the arrow.
1sheet
(USB)
2connector
(CN600) 3screw (BV/ring)
(L = 8.0 mm)
7USB A board
6sheet (blind)
5USB A board cable
connector (CN5602)
DIGITAL board
bottom
side
guide line screw
sheet (USB)
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text
Note: Be careful of the orientation of the text and
affix so that the screws are not overlapped.
front side
front side
POWER SUPPLY board
POWER SUPPLY board
POWER SUPPLY board
The POWER SUPPLY board is raised.
three screws
three screws
Firmly hold so that the
POWER SUPPLY board
does not rotate.
Secure with
screw.
Secure with
screw.
The POWER SUPPLY board and bracket (DCDC)
are stuck together.
bracket (DCDC)
bracket (DCDC)
two connectors
two connectors
rear side
CN2011
bottom side
DIGITAL board
CN2012
2connector
(CN210)
1three screws
(BVTP3 u8)
3connector
(CN211)
OK
NG
– Side view –
1RWHVZKHQVFUHZLQJWKH32:(56833/<ERDUG
Note 1: When installing the POWER SUPPLY board, tighten the
screws while firmly holding the POWER SUPPLY board
with your hand so that it does not rotate. Also, firmly screw
so that the POWER SUPPLY board is not raised.
4POWER SUPPLY board
Note 2: When installing the POWER SUPPLY
board, firmly insert the two connectors,
and securely connect the DIGITAL board
connectors.
Secure with
screw.

TA-ZH1ES
19
2-23. DIGITAL BOARD
3
2
1
front side
rear side
sheet (main)
bottom side
LPF board
rear side
:LUHVHWWLQJ
LINE OUT board
DIGITAL board
CN402
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alignment
mark
DIGITAL
board
front side
–%RWWRPYLHZ–
7two screws
(BV/ring)
(L = 8.0 mm)
1LINE OUT board cable
connector (CN002)
2LPF board cable
connector (CN402)
two holes
9Draw the three
jacks out of the
three holes.
6wiring stopper
8screw (B3 u5)
hole
5screw
(BV3 u8)
3USB A board cable
connector (CN600)
4AC inlet cable connector
(CN102)
5five screws
(BV3 u8)
5screw
(BV3 u8)
5screw
(BV3 u8)
6wiring stopper
6wiring stopper
0sheet (main)
qa DIGITAL
board
Twist the LPF board
cable three times.

TA-ZH1ES
20
2-24. LINE IN BOARD, LINE OUT BOARD, LPF BOARD
rear side
0four screws
(BV/ring)
(L = 8.0 mm)
CN5501
rear side
top side
bottom side
boss
boss
two bosses
hole
hole
CN5101
two holes
hole
qa Draw the jack block
out of the four holes.
qs line input/output
jack block
qk LPF board
cable connector
(CN5405)
qh LINE OUT board
cable connector
(CN5500)
qf LINE IN board
Note 4: When installing the LINE IN board,
align the two bosses and two holes.
qj LINE OUT board
Note 5: When installing the LINE OUT board,
align the two bosses and two holes.
ql LPF board
hole
5screw
(B3 u5)
6two screws
(BV/ring)
(L = 8.0 mm)
7screw
(BVTP3 u8)
7screw
(BVTP3 u8)
7screw
(BVTP3 u8)
back panel block
9Remove the back panel block
in the direction of the arrow.
3
2
1
hole
hole
qd connector (CN5406)
Note 3: When removing the connector,
make sure to pull out straight.
Removing at an angle may
damage the connector.
qg connector (CN5404)
Note 3: When removing the connector, make
sure to pull out straight. Removing at
an angle may damage the connector.
Note 2: When installing the line input/
output jack block to the back
panel, make sure that the
protrusion of the jack root does
not run into the back panel.
Four protrusions
of the jack root
– Rear view –
LPF
board
rear side
:LUHVHWWLQJ
LINE OUT
board
DIGITAL board
CN402
Twist the LPF board
cable three times.
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LQSXWRXWSXWMDFNEORFN
2LPF board cable
connector (CN402)
3USB A board cable
connector (CN600)
front side
bottom side
1LINE OUT board cable
connector (CN002)
slit
4AC inlet cable
connector (CN102)
8 Draw the LINE OUT board
cable out of the slit.
Note 1: Take care not to damage
the connector and cable.