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SONY.
DIGITAL AUDIO RECORDER

PCM-7030

MAINTENANCE MANUAL 1st Edition (Revised 7) Serial No. 20001 and Higher (UC) Serial No. 50001 and Higher (EK)

WARNING
For the customers in U.S.A.
This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with the instructions manual. may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be required to correct the interference. Important- To insure that the complete system (including this peripheral) is capable of complying with the FCC requirements. it is recommended that the user make sure that the individual equipment of the complete system has a label with one of the following statements. "This equipment has been tested with a Class A Computing Device and has been found to comply with Part 15 of FCC rules."

SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the 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 3.5 mAo Leakage current can be measured by anyone of three methods.
1.

A commercial leakage tester, such as the Simpson
229 or RCA WT-540A. Follow the manufac-

turers' instructions to use these instruments.
2.

-or"This equipment complies with the requirements in Part 15 of FCC rules for a Class A Computing Device." -or equivalent.

A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. Measuring the voltage drop across a resistor by means of a YOM or battery-operated AC voltmeter. The "limit" indication is 5.25 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive YOM that is suitable. Nearly all battery operated digital multimeters that have a 20 V AC range are suitable. (See Fig. A)

3.

The shielded interface cable recommended in this manual must be used with this equipment in order to comply with the limits for a computing device pursuant to Subpart J of Part 1 5 of FCC Rules.

For the customers in Canada This apparatus complies with the Class A limits for radio noise emissions set out in Radio Interference Regulations.
To Exposed Metal Pans on Set

Pour les utilisateurs au Canada Cet appareil est conforme aux normes Classe A pour bruits radioelectriques. specifies dans Ie Reglement sur Ie brouillage radioelectrique.
0.15,u:

AC
voltmeter (5.25 V)

I .'
-:Eanh Ground

Fig. A. Using an AC voltmeter to check AC leakage

l l l. I

TABLE OF CONTENTS
, . INSTALLATION
1-1. Packing ................................................ 1-1 1 -2. Installation Environment ar1d Installation Space ............................... 1 - 2 1-2-1. Operating environment ............... 1-2 1-2-2. Installation Space ....................... 1-2 1 -3. Rack mounting method ..................... 1-4 1 -4. Installation of the DABK -7030, DABK-7031, DABK-7032 and DABK-7033 ......................................... 1-7 1 - 4-1. DABK -7030 Installation Procedure ..... ............................... 1-7 1 - 4- 2. DABK -7031 Installation Procedure ........... ......................... 1 - 11 1 - 4- 3. DABK -7032 Installation Procedure .................................... 1 - 14 1-4-4. DABK-7033 Installation Procedure ........ .................. .......... 1 - 16 1-5. Initial Settings of the Board's Switches and Volumes ....................................... 1 - 20 1 - 5- 1. Level schedule change (ADA-1S Board) ........................ 1-20 1 - 5- 2. Fader Start/Stop Change Procedure (RM - 77 Board) 2- 6- 2. Replacing the SY - 155B Board .......................................... 2-23 2- 6- 3. Replacing the lithium battery (CR-2450) .................................. 2-25 2-7. SELF- DIAGNOSIS (ERROR CODE) ...... 2- 26 2-7-1. Error codes ................................. 2- 26 2-7 - 2. Remedy for error code "Error 2-05" ............................... 2-31 2-S. SERVICE MENU .................................... 2-31 2-S-1. SERVICE MENU Structure .......... 2-32 2-8-2. SERVICE MENU items ................ 2-33 2-9. Tools and Instruments ...................... 2-47

3. PERIODICAL INSPECTION AND MAINTENANCE
3-1. Cleaning .......................................... " .. 3-1 3- 2. Periodical Inspection and Maintenance Procedures ................. " .. 3-2 3-3. Post-Repair Maintenance ................ ,.. 3-2

4. MECHANICAL ADJUSTMENT, TAPE PATH ADJUSTMENT, SERVO BLOCK ADJUSTMENT, RECORDING / PLAYBACK BLOCK ADJUSTMENT, AND ERROR RATE CHECK
4-1. Preparation .......................................... ·4-5 4- 2. Mechanical Device Test (operation check) ............................... 4- 6 4- 3. Mechanical Adjustment ...................,.. 4- 6 4-3-1. Rotary encoder position adjustment ...............................,.. 4-7 4-3-2. End sensor (S side, T side) operation check .......................,.. 4- 9 4-3-3. FF/REW torque check ...........,.. 4-10 4-3-4. REW torque adjustment (DR-139 board adjustment) "'" 4-3-5. REV torque adjustment ............. 4-3-6. FWD back tension adjustment '.. 4-3-7. EJECT torque checK· .... · ............ 4-3-8. FF/REW time check ................. 4-4. Tape Path Adjustment ..................... 4-4-1. Tape running check (1) ........... 4-4-2. Tape running check (2) ........... 4- 4- 3. Tape path fine adjustment ...... 4-4-4. RF raise up time check ........... 4-11 4-12 4-13 4-13 4-14 4-14 4-14 4-16 4-16 4-19

1 -21

2. SERVICE INFORMATION
2-1. Removal of Boards and Major Mechanical Parts ................................ 2-1 2-2. Board Arrangement View For PCM-7030 ........................................... 2-15 2-3. Cassette Compartment Service Information ......................................... 2-16 2-4. Precautions for the main Parts replacement procedure ........................ 2-19 2-4- 1. Installation position of the front panel and cassette compartment ............................... 2-19 2-5. Chip Part Replacement Procedure ..... 2- 19 2-6. SERVICE INFORMATION CONCERNING THE SY - 155B BOARD (SYSTEM CONTROL) ...... ................... 2 - 20 2- 6-1. LED for confirming the operations of the SY -155B Board ............. 2- 20

- 1 -

4-4-5. Lack of RF waveform check in FF/REW ................................ 4-19 4-4-6. Overall tape path check ............ 4-20 4-5. Servo Block Adjustment .................... 4-21 4-5-1. SWP position adjustment .......... 4-21 4-5-2. ATF playbackAGC adjustment ..... 4-22 4-6. Recording/Playback Block Adjustment(Recording current level) ... 4- 24 4-6-1. Adjustment using the RF LEVEL CHECKER PD-817 .......... 4-24 4- 6- 2. Adjustment using a spectrum analyzer ....................................... 4- 32 4-7. EQ-H preset (RF-31 board) and error rate check ........................................... 4-39 4-7-1. EQ-H preset (RF-31 board) ..... 4-39 4-7-2. Error Rate Check ........................ 4-39 4'- 8. Cassette Compartment Operation Check .................................................. 4-46

KY-192/LED-104/SW-420 ...................... A-17 PS-211 ........................................................ A-20 RF-31 .......................................................... A-23 RM-77 ......................................................... A-26 SP-13· .......... · ...... ·.................... · .... · .... · ........ A-33 SP-17B ........................................................ A-41 SP-17C ........................................................ A-45 SY-155B ...................................................... A-49 SV - 123 ................................. ....................... A-57

B. CIRCUIT BOARD DIAGRAMS
AC-104 .. · .... ·.... · .... · ........ ·........ · .... · ...... · ........ B-2 ADA-18 ....................................................... B-6
~~:;;A=r

. . . . . . . . . . . . ..
...................................... .

B-11

~:~~~~;~

B-12

DC-47 .......................................................... 8-14

5. ELECTRICAL ADJUSTMENTS
5-1. Initial Preparation ............................... 5-2 5 -1 -1. Equipment Required ................... 5- 2 5 - 1 - 2. Initial switch and control settings ....................................... 5-3 5- 2. Signal Processing Adjustment (SP-13 BOARD) ................................. 5- 5 5-2-1. RF PLL Adjustment ................... 5-5 5-2-2. LTS Adjustment ......................... 5-9 5-3. A/D and D/A Adjustment (ADA-18 BOARD) .............................. 5-11 5- 3-1. A/D Conversion Level Adjustment ................................. 5-11
5-3~2.

DR-139 HP-48 KY-192

~~

...................................... .

B-16 B-20

~~~;~4

=r. . . . . . . . . . . . . 8-24
B-31

PS-211 ........................................................ B-27
:~-_3;7~- _ ....................................... --,

SP-13 .......................................................... B-36 SP-178/17C ............................................... B-41 SV-123 ........................................................ B-45

E:~~~

Center potential adjustment ...... 5-13

=r-.. . . . . . . . . . . .

u ······

8-48

5-3-3. D/A conversion level adjustment .................................. 5-13 5-4. Time Code Adjustment (With the optional TC-58 board (DA8K - 7030) installed.) ................... 5-17

~:~ ~ ~:B ~

....................

8-52

C. SCHEMATIC DIAGRAMS
AC-104 ........................................................ C-2 ADA - 18 (1/2) ............... ............................ C - 7 ADA - 18 (2/2) ........................................... C - 13 CP-157A ...................................................... C-21 CP - 158 ........................................................ C - 23 CP - 171 ...... ........................................... ....... C - 25 -2 -

A. BLOCK DIAGRAMS
OVERALL ........ ............................................. A - 2 MECHANISM DECK ...................................... A-5 ADA-18 ....................................................... A-9

DR - 1 39 ..................................... .................. A- 13

CP-172A ...................................................... C-29 CP-1728 ...................................................... C-31 DC-47 .......................................................... C-33 DR-139 ....................................................... C-37 HP-48 .......................................................... C-43 KY-192 ....................................................... C-45 LE- 90A ........................................................ C-53 LE-908 ........................................................ C-55 LED-104 ...................................................... C-57 PS- 211 ........................................................ C-59 RF-31 .......................................................... C-63 RM-77 ......................................................... C-67 SP-13 .......................................................... C-71 SP-178 .... ·.......................... ·...... ···· .... ··· .... ·.. C-79 SP-17C ........................................................ C-83 SV-123 ........................................................ C-87 SW-420 ....................................................... C-93 SW-426 SW-452 SY-1558 (1/2) .......................................... C-99 SY-1558 (2/2) .......................................... C-105 VR - 109 ........................................................ C-l11 FRAME (1/4) ............................................. C-113 FRAME (2/4) ............................................. C-121 FRAME (3/4) ............................................. C-127 FRAME (4/4) ............................................. C-135 . ....................................... C-97

~

D. SEMICONDUCTOR PIN ASSIGNMENTS

E. REPLACEABLE PARTS
E-1. PARTS ORDERING INFORMATION ..... E-l E-2. EXPLODED VIEWS AND PARTS ......... E- 2 E-3. ELECTRICAL PARTS LIST .................. E- 27

- 3 -

SECTION 1 INSTALLATION
1- 1. Packing

Power cord

Operation and maintenance manual

PCM - 7030 (UC,EK)

1-1

1 - 2.

Installation Environment and Installation Space

Be sure to observe the following precautions including operation environment and installation space when you install the PCM - 7030 Digital Audio Recorder. 1- 2-1. Operating environment

1. Do not install the unit in a place subject to direct

sunlight or strong light, excessive dust, and frequent vibrations. Also do not install the unit near intense electric or magnetic fields. 2. Give consideration to the air circulation of the installation site to prevent the temperature of the inside unit from rising. 3. The operating temperature inside the unit is 5°C to 35°C (41°F to 95~). Do not install the unit in a place near heat sources. 1 - 2- 2. Installation space

1. The outside dimensions of the unit is given in

the figure on next page. 2. Be sure to install the unit with a clearance of at least 40cm (15.75' ) between the wall and the rear surface of the unit for ventilation and easier maintenance. 3. When you use the unit on a desk, provide a clearance of at least 40cm (15.75 above the
W )

upper surface of the unit for easier maintenance of the printed circuit board. On the other hand when you mount the unit on a rack, you can insert or remove the printed circuit board by drawing the unit forward. Therefore, you do not have to provide the clearance over the upper surface of the unit.

1-2

PCM - 7030 (UC,EJ()

External dimensions 115 130 242

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When mounted in a rack
Maximum amount of movement 580

30

Rack
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pCM - 7030 (UC,EK)

unit: mm

1 "3

1 - 3. Rack mounting method
The PCM - 7030 can be used together with the EIA 19 inch standard rack.
It is recommended to use the rail and handles below

Rack mounting procedure (for RMM-30, RMM-31)
(I) Remove the inside rail from the RMM - 30 bracket

attachment rail.

to install it in the rack. Rail: Rack mount rail RMM-30 (option) suitable for a rack 660-830mm (26-33 3/4 inches) long. Handle: Rack mount adapter RMM-31 (option) Note: Please be sure to carry out the installation with two or more persons. If the PCM - 7030 is not supported securely when being inserted onto the rack's rails, injUry or damage can result. Preparation Remove the four legs of the PCM -7030.

outside rail

inside rail

(2) Remove the side panel screws of the PCM -7030

( + B4 x 10, two places on the right and left
respectively) and remove the inside rail as in the illustration. (Use the removed screws (+ B4 x 10) for the installation.)
leg

inside rail

Installation position.

"F.F
72.9

about 57

fl. ~5 ·1

unit: mm

1-4

PCM - 7030 (UC.EII:)

(3) Remove the side panel screws (+ B4 x 6) of the PCM-7030 and install the RMM-31 handles as illustrated. (To install, use the screws (+ B4 x 14) that come with the RMM-31.) Note : Save the screws removed so they can be used later.
handle

(4) Temporarily attach the outside rail of the RMM - 30 bracket attachment rail to the rack. (To install, use the screws (+ B5 x 8) that come with the RMM - 30.)
Loosely set the rear bracket screws and adjust the front of the bracket with the rack.

Front of rack Rear of rack 12.7 31.75
1 2.7
-+-..."...::'-I--'-.J..I

outside rail

~
o

31.75 Installation position, about 2

I

84Ita::===::':::::;::;==:J unit: mm

+ B4 x 14 (screws that come with the RMM31)

Temporarily attach the front part of the bracket to the rail at the installation point by putting two screws (+ 85 x 8) into the screw holes from the outside 31. 75mm apart. Temporarily attach the rear part of the bracket to the rail at the installation point by putting two screws (+ 85 x 8) into the screw holes from the outside 31.75mrn apart.
(5) While pressing the stoppers on the inside rails,

insert the PCM - 7030 on the outside rails and push to the rear of the rack.

PCM - 7030 (UC,EK)

1-5

(6) Firmly tighten the rear bracket screws.

(8) Push the PCM - 7030 into the rack and attach the handles to the rack with the screws (+ RK5 x 16) and decorative washers that come with the RMM-30.

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+ 85 x 8
(screws that come with the RMM-30)

· · ·

(7) Pull the PCM - 7030 out about 20cm and firmly

tighten the front bracket screws.

+ RK5 x 16 (screws that come with the RMM-30)

Decorative washer (comes with the RMM-30)

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1-6

PCM - 7030

(UC.E~)

1- 4. Installation of the DABK- 7030, DABK-7031, DABK-7032 and DABK-7033
1- 4':' 1. DABK - 7030 Installation Procedure

Note : Before installing the DABK -7030, turn off the unit's POWER switch.

1) Flexible card cable (30P) connection to the SY-1558 board
(1) Remove the ADA -18 board's two screws (+ B3

The DABK -7030 comprises the following: TC-58 (UC) or TC - 58P (EK) TC panel Screws (+ PWH3 x 6) Nylon rivets Flexible card cable (30P) Initial preparation Remove the unit's top panel (secured by four + B4
x 6 screws) and the bottom panel (secured by five

board

:1

x 5).
(2) Release the PCB holder's lock and open the ADA

;1
:2 :2 :1

-18 board as shown by the arrow.

+ B4 x 6 screws).

holder Relase the

holder's lock.
Front panel

(3) Remove the SP-13 board's screw (+ PWH3 x 6). (4) Release the PCB holder's locks and opeIJ. the SP -13 board as shown by the arrow.

+ PWH3 x 6

+ 84 x 6 (five)

[

Relase ti'le holder's lock.

! I

PCM - 7030 (UC,EK)

1-7

(5) Insert the flexible card cable (30P) through the chassis hole. Keep inserting the cable until it locks into the CNI connector on the SY -155B board Note: Take care to insert the flexible card of the contact/incontact side.

2) TC- 58 (UC) or installation

TC- 58P (EK) board

(1) Lay the unit so that the bottom side is in front

of you.
(2) Secure the flexible card cable with the two cable

clips.

Flexible card cable (30P)

Install the flexible card cable (30P) as far as it will go until the line indicated on the flexible card cable (30P ), and connector push down the marked portions of connector.

Front panel Cable clips

*

(3) Fasten the TC-58 (UC) or TC-58P (EK)

board

to the chassis with the two nylon rivets.

(6) Close the SP-I3 board until the two PCB holders

lock. Then tighten the screw (+ PWH3 x 6) removed in step (3).
(7) Close the ADA -18 board until the PCB holder

locks. Then tighten the two screws (+ B3 x 5) removed in step (1).
SP-13 board

Flexible card cable (30P)

~'~~~i&~===::s:;;#-

Nylon rivets

1
1-8

PCM - 7030 (UC,ElC)

(4) Connect the flexible card cable (30P) to the CN2 connector on the TC-58 (UC) or TC-58P (EK) board. (5) Connect the 4P, 5P. and 6P harnesses held by the cable holder to CN! (5P), CN3 (4P), and CN4 (6P) respectively on the TC-58 (UC) or TC-58P (EK) board. (6) Close the TC-58 (UC) or TC-58P (EK) board as shown by the arrow. (7) Secure the TC-58 (UC) or TC-58P (EK) board to the chassis with the two screws (+ PWH3 x
6).

3) Installation of Connector Panel Panel

to TC

(1) Remove the blind plate from the connector panel.

Blind plate

+ 83)( 6 (two)
Cable holder

(2) Install the TC panel on the connector panel (where the blind plate was removed) and secure it with the + B3 x 6 screws removed in step 0).

:-t~~ff""-Side

Contact

Connector panel

+ B3x 6 (two)

TC panel TC-58 (UC) or TC-58P (EK) board

:I

PCM - 7030 (UC.EK)

1-9

(3) Remove the two connector panel screws (+ B3 x 5) and open the connector panel as shown by the arrow.

+ B3 x
Connector panel

5 (two)

(4) Connect the TC panel's harness to the CP-171 board's CNlO connector (black). Secure the harness with the four purse locks shown in the figure below.

4) Post-Installation Check After installing the DABK -7030, do the following check. 1. Video synchronization signal input check (1) From the video synchronization signal generator, input the signal to the TC panel's REF VIDEO INPUT terminal. Note: The unit's video· synchronization signal frequency setting must match the input signal Refer to the menu operation in the Operation Manual. (2) Set the TC panel's 75 ohm termination ON/OFF switch to ON. (3) Set the SYNC switch on the front panel to VIDEO. (4) Make sure the VIDEO display on the front panel's display is lit. (5) Then set the 75 ohm termination ON/OFF switch to OFF.
2. Time code I/O check (0 Connect the INPUT and OUTPUT terminals of the TIME CODE terminal on the TC panel. (2) Play the tape containing the time code. (3) Press the DISPLAY key on the front panel to display the EXT TIME CODE on the display's work area. (4) On the display, make sure the tape time area's time code display matches the work area's time code display.

Purse locks CN10 (Black)

(5) Close the connector panel. (6) Fasten the connector panel to the chassis with the two + B3 x 5 screws removed in step (3). (7) Re- install the top panel (with the four + B4 x 6 screws) and bottom panel (with the five + B4 x 6 screws) on the unit.

1 - 10

PCM - 7030 (UC,EK)

1

1 - 4- 2. OABK -7031 Installation Procedure The DABK -7031 comprises the following: DID-I0 board :1 :1 DID panel Screw (+ PWH3 x 6) :1
Initial preparation

1) Installation of 010- 10 board to SY - 1558 board (1) Remove the ADA -18 board's two + B3 x 5 screws. (2) Release the PCB holder's lock and open the ADA -18 board as shown by the arrow.

Remove the PCM-7030's top panel by removing the four + B4 x 6 screws. Remove the top panel as shown
by the arrow.

holder Relase the holder's lock. Front panel

(3) Remove the SP-13 board's screw (+ PWH3 x 6).
(4) Release the PCB holders' locks and open the SP

I
f
Note: Before installing the DABK-7031, turn off the unit's POWER switch.

-13 board as shown by the arrow.
+PWH3x6

Relase the holder's bCk.

pCM -

7030 (UC,EK)

1 - 11

(5) Insert the DIO-IO board's DIN connector into the

SY -155 (B) board's DIN connector. Insert the DIO-lO board until the SY -155B SY bracket supporters lock in place. (6) Use the + PWH3 x 6 screw to fasten the DIO-lO board to the SY -155B board's SY bracket (7) Connect the harnesses (held by the cable holder on the chassis) to the CNI (black), CN2 (red), and CN4 (brown) connectors on the DIO-lO board The color of the harness must match the color of the respective connector.

2) Installation of 010 panel to Connector panel
(1) Remove the blind plate.

SP- 13 board

+ PWH3 x 6
Blind plate
RED

(2) Install the DIO panel on the connector panel (where the blind plate was removed) with the
eN1

+ B3 x 6 screws removed in step

(1).

,
SY - 155B board SY bracket
(8) Close the SP-13 board until the two PCB holders

t

lock. (9) Fasten the SP-13 board to the SY bracket with the + PWH3 x 6 screw that was removed in step
(3).

(10) Close the ADA -18 board until the PCB holder locks. (11) Fasten the ADA-18 board to the chassis with the two + B3 x 5 screws that were removed in step (0.

1 - 12

PCM - 7030 (UC,EK)

1

I

=

(3) Remove the two + B3 x 5 screws and open the connector panel as shown by the arrow.

3) Post-Installation check After installing the DABK - 7031, do the following check. WORD synchronization signal input check
(1) From the device having the WORD synchronization

signal output. input the signal to the DID panel's WORD SYNC INPUT terminal. Note : The unit's sampling frequency setting must match the frequency of the synchronization signal that is input. (2) On the DIO panel, set the 75 ohm termination switch to ON and set the EXT SYNC switch to WORD. (3) On the front panel, set the SYNC switch to EXT. (4) Check if the EXT SYNC display is lit on the display. (5) After the above check, set the SYNC switch on the front panel and the 75 ohm termination switch and EXT SYNC switch on the DIO panel as follows:
CP- 171 board

+ B3 x 5
Connector panel

(two)

(4) Connect the DIO panel assembly harness to the CNll connector (white) on the CP-171 board. Insert the harness through the three purse locks shown below.
DIO panel

SYNC switch : INT 75 ohm termination switch : OFF EXT SYNC switch : D- I

Purse locks

eN11
(white)

(5) Close the connector panel and secure it to the chassis with the two + B3 x 5 screws removed in step (3). (6) Re-install the top panel on the unit with the four + B4 x 6 screws.

PCM - 7030 (UC,EK)

1 - 13

WORD synchronization signal output check

1-4-3.

DABK-7032 Installation Procedure
:1 :1

(1) Connect an oscilloscope or a frequency counter

The DABK -7032 comprises the following: MEM - 40B board Screw (+ PWH3 x 6)
Initial preparation

to the WARD SYNC OUTPUT tenninal on the DIO panel. (2) Check if the stipulated wavefonn or frequency is being output.
DIGITAL AUDIO signal

I/O check

(1) Input the digital signal to the DIGITAL INPUT

Remove the unit's top panel (Refer to the 1 - 4 - 1. DABK - 7031 procedure.)

installation

terminal on the DIO panel. (2) On the front panel, set the AUDIO INPUT switch to DIGITAL and tum on the INPUT MONITOR switch. (3) Check if the level meter on the display moves in accordance with the input signal. (4) Tum off the INPUT MONITOR switch on the front panel. (5) Connect the device having the digital signal input to the DIGITAL OUTPUT terminal on the DIO panel. (6) Play a pre-recorded tape (music, etc.) to check if the signal is being input to the device in step
(5).

Note : Before installing the DABK -7032, turn off the unit's POWER switch.

1) Installation of MEM - 40B board to SY1558 board
(1) Open the ADA -18 board and the SP-13 board.

(Refer to the 1- 4-1. DABK -7031 installation procedure.) (2) Remove the SP-17C board from the SY -155B board. (The board supporters are located in two places. One + PWH3 x 6 screw.)

SP-13 board
ADA - 18 board

Claw

Press the claw to . release the lock.

;1
,

Board supporters (in two places)

1 - 14

PCM - 7030 (UC,Eg:)

1

I

= =

(3) Insert the MEM-40B board's DIN connector into the SY -155B board's DIN connector. Insert the MEM-40B board until the SY-I55B board's board supporters lock. (4) Fasten the MEM - 40B board to the SY - 155B board's SY bracket with the + PWH3 x 6 screw.
SP-13 board

2) Post-Installation check
After installing the DABK - 7032, do the following check. (1) ()pen the SERVICE menu. (Simultaneously press the STOP, DISPLAY, and SET keys on the front panel) (2) Open the TEST menu.


While pressing the MENU key, turn the dial counterclockwise to display the following: [tESt] cLoSE

® While pressing the DATA key, turn the dial until
"oPEn" is displayed. Then press the SET key. @ While pressing the MENU key, turn the dial clockwise to display the following: [is_Ed] cLoSE
@ While pressing the DATA key, turn the dial until

"oPEn" is displayed. Then press the SET key. (3) While pressing the MENU key, turn the dial clockwise to display the following: inStAnt tESt (4) Press the SET key and check if "noError" displayed about 20 seconds later.
SY bracket

is

(5) Close the SERVICE menu. (Simultaneo1lsly press the STOP, DISPLAY. and RESET keys.)

(5) Close the SP-13 board and ADA-18 board. (Refer to "1- 4-1. DABK -7031 Installation Procedure.") (6) Install the top panel on the unit with the four

+ B4 x 6 screws.

PCM - 7030 (UC,EK)

1 - 15

1-4-4. DABK-7033 Installation Procedure
The DABK -7033 comprises the following: IF - 283 board Board supporter Harness with D-SUB connector D-SUB connector screws ROM Sample Disk
Initial preparation

:1 :3 :1 :2

1) Installation of Harness with D - SUB connector to the connector panel (1) Remove the D - SUB blind plate from the connector panel.

:2
:1

Remove the top panel by removing the four + B4 x 6 screws. Remove the top panel as shown by the arrow.

D-SUB blind plate

~~+P2.6X4
(two)

(2) Install the harness with D-SUB connector on the connector panel (where the D-SUB blind plate was removed) with the two D- SUB connector screws.

Note : Before installing the DABK -7033, turn off the unit's POWER switch.

Hamess with D- SUB connector

~
c- SUB
connector screws

1 - 16

PCM - 7030 (UC.t:.K)

l I

2) IF-283 board installation on the RM-77 board
(1) Remove the two

+ B3 x 5 screws and open the

connector panel as shown by the arrow.

(4) Connect the harness with D-SUB connector to the IF-283 board's CN2 connector (yellow). Connect the harness by securing it with the four purse locks. (5) Remove the screw ( + PWH3 x 6) that the stopping on the RM -77 board (A Side board address A - 1) and install the harness together with the ground wire with the lug terminal provided with the IF - 238 board.
(6) Remove the screw.( + B3 x 6) holding the frame

ground wire of the D-SUB 9 pin (REMOTE 9P).

+ B3 x 5
Connector panel

(two)

Secure the lug terminal with ground wire of the harness with the D-SUB connector with a purse lock, and install it together with the removed frame ground wire with a screw (+ B3 x 6).
Note: Before connect the ground wire. clean the surface in alcohol

(2) Insert the three board supporters into the IF-283

board as shown in the figure below.

~ ~+PWH3x6 fi
I~ IF-283
t:?~

~ ___ RM-77 board
board

4--_---:--t----.:;7

Board supporters

JJ--.

!

CN2

(3) Mount the IF-283 board to the RM-77 board and push it in until the board supporters lock.

\~~)
IF-283

RM-77 board

board

+ 83 x6
REM()TE 9P

frame groll nd wire

(7) Close the connector panel. (8) Fasten the connector panel to the cha;sis with the two + B3 x 5 screws removed in ~.ep (1). FCM - 7030 (UC,EK)
1 - 17

3) ROM Replacement (1) Remove the ADA-18 board's two + B3 x 5 screws. (2) Release the PCB holder's lock and open the ADA -18 board as shown by the arrow.

(5) Remove the DIO-I0 board from the SY -155B board. Note: Do this when the PCM -7030 is equipped with the DABK-7031 (optional).

SP- 13 board

+ PWH3 x 6

Relase the holder's lock. Front panel

(3) Remove the SP-13 board's screw (+ PWH3 x 6). (4) Release the PCB holders' locks and open the SP - 13 board as shown by the arrow.
+PWH3 x 6 SY - 1558 board

DIN connector

(6) Remove the ROM SYC3V *. * (board adress C3) on the SY -155B board and install the ROM (IFC3V *. *) that goes with the DABK -7033. (7) Remove the ROM SYC4V (board adress C4) on the SY -155B board and install the lWM (IFC4V *.*) that goes with the DABK-7033.

*. *

SP-13 board

ReJase the holder's lock.

ICC4

ICC3
SY - 1558 board

1 - 18

PCM - 7030 (UC,EF<)

I I

=

=

(8) Install the DIO-I0 board on the SY -155B board. Note: Do this when the PCM -7030 is equipped with the DABK-703I (optional).
(9) Close the SF-13 board until the two PCB holders

lock.
(0) Fasten the SF-I3 board to the board guide with

the + PWH3 x 6 screw that was removed in step
(3).

(11) Close the ADA -18 board until the PCB holder

locks.
(2) Fasten the ADA-18 board to the chassis with

the two + B3 x 5 screws that were removed in step (1).
(3) Install the top cover on the unit with the four

+ B4 x 6 screws.

(

I
1
PCM - 7030 (UC,EK)
1 - 19

I

1 - 5.

Initial Settings of the Board's Switches and Volumes

(2) Level schedule change Upon factory shipment, the RVI0l, RV20l, RV301, and RV401 volumes are set to the level schedule (+ 4dBs input -+ 20dB display -+ 4dBs output). To change the above volumes' level schedule, adjust the volumes as described below. First set the ANALOG AUDIO INPUT level adjustment knob (CHI and CH2 on the front panel) to the center position. RV101 and RV201 input level adjustment For RVI0I, adjust the CHI input level When it
is turned clockwise, the level will increase.

The switch and volume settings required for level schedule changes (ADA-18 board) and fader start/ stop procedure changes (RM -77 board) are described below. Note: Do not touch any switches and volumes other than those specified below.

1 - 5- 1. Level schedule board)

change (ADA - 18

RV302

For RV20I, adjust the CH2 input level.When it
is turned clockwise. the level will increase.

G

The level setting (+ 4dBs
RV402

=

-

20dB) upon

factory shipment has a variable range of + 8/ -I4dB for RVIOI and RV201. RV302 and RV402 output level adjustment For RV302, adjust the CHI output level.When it is turned clockwise, the level will increase. For RV402, adjust the CH2 output level.When it is turned clockwise, the level will increase. The level setting (- 20dB = + 4dBs) upon factory

:0 :0

G
5101 GRV101 GRV201 ADA- 18 BOARD COMPONENT SIDE BOARD N~ 1-637-267-11

5201

(1) If the standard

signal level used is small (around - 20dBs), do the following: Switchover the SIOl, S201, S301. and S401 switches in correspondence to the analog audio This is to be used if the standard level is set

shipment has a variable range of + 4/ - 12dB.

I/O signal's standard signal level. low, at around - 20dBs. If all the switches are set to II. the + 4dBs input signal will be displayed as - 20dB on the level meter. (Setting upon factory shipment.)
If all the switches are set to L. the - 20dBs input

signal will be displayed as - 20dB on the level meter.

1 - 20

PCM - 7030 (UC,Ef()

I

1-5-2. Fader Start/Stop Change Procedure (RM-77 Board)
The following two methods can be used for tape transport control with the fader: 1. Start the tape transport by raising the fader and stop it with the STOP keY.Or, start the tape transport with the START key and stop it with the STOP key. 2. Start the tape transport by raising the fader and stop it by lowering the fader. Select one of the above methods with SWl.
c::::J
SWI

When the switch is set, the setting will apply to both start and stop.

~
SWI

.

From pin 1 of the 8-pin remote terminaL the PLAY and STOP commands will be input alternately. This allows an external fader (mixer) to perform fader start and fader stop.The signal from of the 8-pin remote terminal's pin 1 will thereby change as follows:

a-pin remote terminal pin 1

W!LJ SWI

DID SWI

..

--uPLAY

~~
PLAY STOP

,..

pin 2

LI
STOP

-

RM-77 BOARD COMPONENT SIDE BOARD No. 1-637-272-11

Setting upon factory shipment: The start and stop are independent.

IfLJ SWI
Pin 1 of the 8-pin remote terminal is dedicated to the PLAY command The fader start can be done with

an external fader (mixer).Pin 2 is dedicated to the
STOP command.

PCM - 7030 (UC,EK)

1 - 21

1

1

I

SECTION 2 SERVICE INFORMATION
2- 1, Removal of Boards and Major Mechanical Parts
Top panel removal

Top panel

Removal
(three)

of front

panel assembly

DC-47 board

removal

Opening the

ADA-18

board

+PWH3 x 6

Front panel assy Dial assy Note: · When removing or attaching the front panel assembly. please do it when the cassette compartment has finished ejecting or when the cassette holder has finished lowering, · Refer to the instructions 2 - 4 - , . Installation position of the panel and cassette compartment" for installing the front panel asseembly.
M

Front panel

Removal of KY-192, HP-47, VR-109. LED-l04, and SW-420 boards

Fuse replacement

ADA-18

board

removal

Fuse cover Fuse

Remove the fuse cover.

LED-104 board Rear panel

KY - , 92 board

SW-420 board
+-83 x 5 (two)
Connector panel

PCM - 7030 (UC.EK)

2-,

2· 2

,NY -SP1052 / Druck 1

Opening

the SP-13

board

SY-155B

board

removal

Bottom

panel

removal

ADA - 18 board

SP- 17 board and MEM - 40C board (option) SP- 17C4l&

sP- 1 3

board

removal

D
Remove the SY - 1558 board from the bottom plate side. SP-13 board

PS-211

board

removal

t

+ 83 x 5 (two) + 83 x 5 (two) 9
'f

Remove the spring

~'>-=~~==-- Supporter

SP-13 board SY - 155 (8) board

+ PWH3 x 6 (three)

I
ps- 211
board

l

2-3

2-4

PCM - 7030 (UC.EK)

SONY-SPI052 !Druck 2

Opening the connector panel

IF-283 board (option) removal

RM-77

board

removal

Rear

panel

removal

IF- 283 board (option) Connector panel

+ PWH3 x

6 (two)

Rear panel

+ 83

x 5 (four)

Opening the TC-58 (UC) or TC-58P (EK) board (option)

TC-58 (UC) or TC-58P (EK) (option) removal

board

CP-171

board

removal

AC-l04

board

removal

AC - 104 board

TC-58 (UC) or TC-58P (EK) board (option)

PCM - 7030 (UC.EK)

2-5

2-6

j

'NY-SPI052/Druck3

Opening the SV-123 board

MD assembly removal

DR-139 board

removal

Switching

regulator removal
Switching regulator

SV - 123 board

Move the MD assembly toward the rear panel and lift it up to remove.

SV- 123 board

DR-139 board

Rear panel

LW3, TYPE B (four)

DR - 139 board

CN107

~
--=--CN103 CN104

SV-123 board

removal

Cassette
cassette illumination assy SV - 123 board

compartment
+ B3 x 5 (two)

removal
~

_ _-;;;;:~ + 82 x 3 (four)

Cassette compartment

Remove the harness and close the SV - 123 board.

V

~

POWER switch
(ON)

POWER switch

(OFF)
Loader (main)

+ PWH3 x 6 (two)

.

"'.

~ "~~

<~~h

..

1. Turn on the POWER switch. 2. Lift up the lever (lock). 3. Use your finger to push the loader as shown by the arrow so that the cassette holder gOBS all the way

5. To remove the cassette compartment, lift up the rear panel side and then lift up the front panel side. Then remove it directly upward, as shown by the arrow.
Note : While removing the cassette compartment, do not bump it left or right.

down.

4. With the cassette holder aA the way down. turn off the
POWER switch. (The cassette holder will normally go back up after about a second it is down. Turn off the POWER switch before the cassette holder goes back up.) 2·7

2-8

PCM - 7030 (UC.EK)

SONY-SP1052 !Druck 4

DATM assembly and Cassette compartment

Cassette compartment

removal

Drum

assembly removal
Make a ring with a strip of paper and use it to cover the drum.

+ B2 x 3 (four)

RF shielded plate (upper)

+B2 x 3

1. 2.

Note: Refer to the instructions "2- 4-1.1nstllation position of the front panel and cassette compartment-for installing the DA TM assembly and the cassette compartment.

3. 4.
remove the cassette DATM assembly.

Lever (Lock)

RF shielded plate (harness)

Rem ova I of the cas sette com pa rtment motor and cassette holder detection switches (S1 and 52)

Removal of the pinch roller, tape-end sensor, and mode detection switch.
HN-151 flexible board

*

+~X~~

Pinch roller End sensor

~ ...................
Pinch roller arm assembly End sensor

*

Handling the flexible
Keep the soldering iron

printed

board

temperature at around 270'C .

Precision + P2 x 2.2 (two) Cassette compartment motor HN-151 flexible board

· Do not touch the same pattern more than 3 times with the soldering iron. · Do not exert any excessive force on the pattern.

*

HN-151 flexible board

*

PCM - 7030 (UC.EK)

2-9

2 - 10

j

-NY-SPI052/Druck5

RF-31 board removal

assembly Rotary encoder removal MD shielded plate removal
MD shielded plate

Reel

motor assembly + 82 x 4 (three)

removal

Loading

motor removal

Capstan

motor removal

Harness guide

Capstan motor

2 - 11

2 - '2

PCM - 7030 (UC.EK)

I~

SONY-SPI052/Druck 6

ADJUSTMENTS (CONFIRMATIONS) AFTER MAJOR PARTS REPLACEMENTS
When you replace major parts, be sure to adjust and confirm the following items.
Mechanism Deck Assembly (DATM-06R) 4-3-2. 4-3-3. ,-4:...,.-.;:;,.3_-4..;.;.._ _ _ _ _--., lEnd sensor operation checkl ...... IFF/REW torque checkl- I FWD torque adjustmentl4-3-5. 4-3-6.
,-4~-.;;;.3..,..-7;..:.'_ _ _ _ _--.,

I REV torque adjustment I - 1FWD back tension adjustment I - 1 EJ ECT torque check I -

4-4-1. 4-4-2. (cassette compartment assembly I Tap e run n i n g c h e c k (1) 1 --+ 1Tap e run n i n g c h e c k ( 2) 1 --+ mounting) ~ 4-2. 4-3-8. 4-4-3. r-:4:-::-~4~-4~._---:-_~...,...., I Mechanism device test I - I FF /REW time check 1 ...... 1 Tape path fine adjustment I ...... 1 RF raise up time check 1 ...... 4-4-5. Lack of RF waveform check in FF/REW 4-5-1. 4-4-6. --+ IOverall tape path check I --+ 1 SWP position adjustment 1--+

4-5-2. 4-& 5-2. 1ATF playback AGC adjustment I ~ Recording/playback adjustment ...... Signal processing adjustment ...... L..:...:.':":-~:;":";:=;';"";":'=-'::"""';:'=;;;';;";=';;~ (recording current level adjustment) (RF PLL adjustment) 4-7-2. I Error rate check 1 Drum Assembly (DDH-14AR) 4-3-4. 4-3-5. r-:4:...,.-.;:;,.3,....;-6::,:..--,-_--,-_.....,..,..._ _-. 1FWD torque adjustment I - 1REV torque adjustment 1- I FWD back tension adjustment 1--+ 4- 4-1. 4-4- 2. (cassette compartment assembly ITape running check (1) I - ITape running check (2) I...... mounting) ..... 4-2. 4-4-3. 4-4-4. ,....;4_-...:..4-...,;5;.:..._ _ _ _--. 1Mechanism device test 1--+ 1 Tape path fine adjustment 1...... 1 RF raise up time check 1--+ Lack of RF waveform ...... check in FF/REW 4-4-6. 4-5-1. 4-5-2. IOverall tape path check 1--+ I SWP position adjustment 1--+ A-=-T=F:,....;;p;;.;,la-y...,b-a-c~k-A':""G~C-=-a-d':':j-us-t-m-e-n--'t1--+
1""1

4-6. Recording/playback adjustment (recording current level adjustment) Capstan Motor (BHF2803A)

4-7-2. 5-2. Signal processing adjustment --+ I Error rate check 1 (RF PLL adjustment)

4- 4- 1. 4- 4- 2. (cassette compartment assembly ITape running check (1)1-ITape running check (2)1...... mounting)-. 4-2.
1 Mechanism

4-4-6. IOverali tape path check Reel Motor (U - 2A) 4-3-a

4-4-a 4-4-4 4-4-~ device test 1--+ I Tape path fine adjustment 1--+ I RF raise up time check 1--+ rLa-c-k"':o'-f-RF-w-a-v-el-o-r-m"'" --+ check in FF/REVI

I
4-3-4
4-3-~

1F F / REW to rq ue check 1--+ 1FWD torque adjustment I ...... "IR~E=V-:-t-o-rq-u-e-a-:d:7'ju-s-t-m-e-n""'t1......
4- 3- 6. 4- 3-7. ,-4;,...-...,;.4_-..:. .;1._ _ _ _ _ _~__, IFWD back tension adjustmentl ...... IEJECT torque checkl--+ITape running check (1)1 ...... 4- 4- 2. (cassette compartment assembly 4- 2. 1Tape running check (2) 1--+ mounting) --+ Ir.M:-;e-c...,h-a-n':""is-m-d~e-v~ic-e-t-e-st-.I ......

PCM - 7030 (UC,EK)

2 - 13

4-3-8.
4-4-~

4-4-3. 4-4-&
IOverall tape path check 1

4-4-4.
1RF raise up time check 1 -

I F_F..:.../....;.R..;.;;E:..:cW.;......;t;.;..im_e.;......;c.... .... h.,;..ec....;.k;.Jl- 1Tape path fine adjustment 1 -

Lack of RF waveform check in FF /REW

Pinch Roller Block Assembly

4-4-1.
ITape running

4-4-2.
check (1)1-ITape running check (2)1-

(cassette compartment assembly mounting) -

4-2.
1 Mechanism device test 1 -

4-4-3.

4-4-4.

4-4-5.
... L.,;..a-c.:....k....:o:..:.f-R-F-w-av-e-fo-r-m-. ....

1Tape path fine adjustment I .... 1RF raise up time check 1 -

4-4-6.
1 Overa II tape path

check in FF /REW check

I
4-4- 3.
1Tape path fine adjustment

Rotary Encoder

4- 3-1.
1 Rotary encoder position adjustment 1 -

I-

4-4-4.
1RF raise up time check

I-

4-2.
1 Mechanism device test 1

Cassette Compartment Assembly

4-2.
1 Mechanism device test 1 -

4-&
1Cassette compartment operation check 1 -

Ir::F::-:F:"/'-:-R~EW"""-"""'ti"""m-e-c""h-ec"""'k""l

4-3-&

DR - 139 Board

4-2.
1 Mechanism device test 14-3-~

4-3-& 1FF /REW 4-3-&

torque adjustment

4-3-4 1 - r.1F=W7:-=:O-to-r-q-u-e-ad'-:-j=-u-s-tm-e-nt""l-

I REV torque adjustment

1.... 1FWD

back tension adjustment

1- r.1E=-J"7'E=-C=-=T-t-o-rq-u-e-c-h"""e-c"""'k""l 1.... 0.1T=-a-p-e"7'pa-t:-h"""'f:-:-in-e-ad-:-:j-us-t-m-e-n-'t14-4-3.

4-3-~

4-4-1.
ITa pe ru n n ing check (1)

1- 1 pe Ta

4-4-2.
ru n n i ng chec k (2)

I RF

4-4-4
raise up time check

1-

4-4-~

4-4-&
-+ '"'I O::-v-e-r"":a""ll-ta-p-e-p-a-t:-h-c:-he-c"""'k""l

Lack of RF waveform check in FF/REW

SV-123 Board

4-2. 4-4-&
I Tape path fine adjustment

4- 4-1.
running

4-4-2.
check (1) 1 .... ITape running
4-4-~

1 Mechanism device testl-ITape

check (2) I ....

I .... 1 RF

4-4-4

raise up time check 1 -+ r-L':""a-c"";'k";;o;';"f-R-F-w-a-v-ef-o-rm--' .... check in FF /REW

4 - 4 - 6.
[Overall tape path check

1- 1 SWP

. .,4;.,--.=.,5,. . -1;;.;. _.,--_,.,.-_---,
position adjustment

1
5-2.
Signal processing adjustment -> (RF PLL adjustment)

RF-31 Board Assembly

4-5-2.
[ATF playback AGC adjustment

1-+ r-R-e"7'c-o-r-d~i-ng-/-:-p...,l-a-y-b-a-c-k-a-d-ju-s-t-m-e-n-t..,-+
(recording current level adjustment)

4-&

4-7-2.
[Error rate check 1

2 - 14

PCM - 7030 (UC,EIC)

l l

2- 2.

Board Arrangement View For PCM-7030
Connector panel

MD ass'y

Main unit

· Main unit
Q)AC-104 board @ADA-18 board @CP-171 board @DC-47 board @HP-47 board @KY-192 board
® sy - 155B board il)VR-109 board

· DABK - 7031 ,Option)
@ DIO- 10 board

< Connector panel> ®CP-157B board @CP-158 board @CP-172C board @CP-172D board @SW-426 board
< MD ass'y>
@DR-139 board @HN-151 board @RF-31 board

· DABK -7030 (Option)
@TC-58 board

< Connector panel> @CP- 152 board ~CP- 159C board @CP-159D board @SW-455 board

< Connector panel >@CP-173A board @CP- 173B board @SW-453 board @SW- 454 board
· DABK - 7032 (Dption)
@MEM-40B board

· DABK - 7033 (Dption)
~ IF - 283 board

< Cassette compartment> @SW- 452 board

PCM - 7030 (UC.EK)

2 - 15

=

2-3. Cassette Compartment Service Information
1) Releasing the cassette compartment lever Be sure to release the lever (lock) before turning (by hand) the cassette control motor's worm gear to move the cassette holder when the cassette compartment is to be replaced, etc. Raise the lever (lock) as shown below to release the lock.
Raise lever (Lock)

2) Extracting a cassette tape when EJECT and cassette UP are inoperational.
If the EJECT operation does not work or if the

cassette compartment does not go up, extract the cassette tape by following the procedure below. Procedure (1) Tum off the POWER switch. (2) Remove the top panel. (Refer to 2-1.) (3) Check whether the tape is out of the cassette or contained in the cassette. If the tape is contained in the cassette, do the following: (4) Tum the cassette control motor's worm gear as shown by the arrow to raise the cassette holder.

Worm gear

holder

(5) Eject the cassette when the cassette door on the front panel opens upward in link with the raising of the cassette holder (cassette tape). (6) Tum the worm gear until the cassette is positioned to be taken out. (7) Check for any problems after taking out the cassette. Execute necessary. proper countermeasures if

I
2 - 16

PCM - 7030 (UC,J::K)

1

If the tape is out of the cassette, do the following: (4) Tum (by hand) the loading motor pulley on the mechanical deck, as shown by the arrow (ccw). Unload the eject guide to return it. The tape will then be in the loading position.

(8) Turn the cassette control motor's wonn gear to raise the cassette holder, as shown by the arrow CD. Then take out the cassette. Check for any problems after taking out the cassette. Execute proper countenneasures if necessary. After executing countermeasures, install the cassette

Loading motor

compartment on the mechanical deck. To install, turn the worm gear in reverse to lower the cassette holder, as shown by the arrow @. Turn the worm gear until the cassette holder goes all the way down. Then attach the cassette compartment to the MD with the four screws (+ B2 x 3). Turn on the POWER switch to return the cassette compartment to its proper position.

Worm gear

(5) Remove the cassette compartment(Refer to 2-1.) Slowly take out the cassette compartment while keeping the front cover open with your fingers.

Keep the front

holder

Cassette tape

(6) Carefully take out the tape remaining in the unit (mechanical deck) without scratching it. (7) While keeping the cassette's front cover open, turn the reel hub in the cassette to wind the tape around the reel.

PCM - 7030 (UC,EK)

2 - 17

3) Operation Without the Cassette Compartment (Using the cassette weight and cassette compartment dummy connector)
To operate compartment the
is

Cassette compartment

unit while the removed, use the

cassette cassette

to stop the compartment dummy connector function of the cassette compartment motor control. Also use the cassette weight (J-6224140- A) to insert a cassette (test tape, etc.) and to operate the unit.

*

* About the cassette compartment dummy connector
The cassette compartment dummy connector is used to short pins 1, 2, and 3 of the CN106 connctor on the DR-139 board. You can make it simply in the following way using a small harness (CCP). Required item: Small harness (CCP) , part number 1-946-957-11 (1) Cut the orange and yellow lead wires of the harness (CCP) at the base as shown in the figure.
(2) Short (solder) the three remaining lead wires (red,

(4) Attach the cassette tape (test tape, etc.) to the

cassette weight
Cassette weight

/'
Cassette tape

brown, and blue) as shown in the figure. Solder here.

Brown
(5) Align the cassette weight attached the cassette

tape over the cassette positioning pin and mount it on the mechanical deck.

t

Small harness (1- 946- 957 -11)

Using the Cassette compartment dummy connector and cassette weight ( 1) Remove the top panel.
(2) Remove the cassette compartment.

(Refer to the removal procedure in 2-1.) (3) Insert the cassette compartment dummy connector into the CNI06 connector on the mechanical deck's DR-I39 board

Positioning pin

2 - 18

PCM - 7030 (UC,EK)

I

2- 4.

Precautions for the main parts replacement procedure
Installation position of the front panel and cassette compartment

2- 5. Chip Part Replacement Procedure
Tools: Soldering iron of 20W (Use a temperature controller, if possible, which can set control the iron temperature to 270 ± lOOC) Solder (0.6 mm dia.) Desoldering metal braid equivalent) Tweezers Soldering Conditions: Tip temperature; 270 ± 10 °C Within the 2 seconds.
1. To remove a resistor or capacitor, place the tip

2- 4- 1.

Some DAT cassettes have a different external shape with a small comer round as shown below.
cassette

( Solder wick or

of a soldering iron on chip parts to heat the parts, Using this type of cassette causes the round part of the comer of cassette tape being caught in the front panel window if the gaps between the cassette and the insertion window of the front panel are insufficient as shown below, and the error massage "ERROR 2-21 may be displayed on the display of
W

and then move it horizontally for removal while being desoldered. For removal of a diode or transistor, heat the one side, with two pins, of chip parts at the same time, set the parts up when desoldered, and remove the two pins. And then, remove the pin on anothe side. 2. Absorb solder by using a desoldering metal braid to smooth removal. 3. Confinn by visual check that no pattern of the removed chip parts is peeled off and no adjacent parts is damaged or bridged.
4. Perfonn a thin pretinning on the pattern. 5. Place new chip parts on the pattern to solder

the front panel.

Ensure to have spaces between the cassette and front panel window when reinstalling the above parts after exchanging them for repainnellt. Adjust the installing position within the range of the holes in order to install the front panel assembly and
DATM

the land surface of board after

assembly. Install

the

whole

DATM· by

its both sides. Note: · The chip part removed should not be used again. · When mounting the new chip part, should not shift so that it not short. · Use the soldering iron verticaly as much as possible. · When mounting the new chip part, heat it from pattern side. Never contact the tip of the :soldering iron to the part.

clockwise to make gaps easier. After installation, carry out an eject operation several times by using an optional cassette tape and confirm that the both sides of the cassette tape do not touch the front panel window.
the front panel cassette window

JE
gap

cassette

f

j~
gap
2 - 19

PCM - 7030 (UC,EK)

2-6. SERVICE INFORMATION CONCERNING THE SY-1558 BOARD (SYSTEM CONTROL)
2- 6-1. LED for confirming the operations of the SY -1558 board
A
ICF2
G

H

J

K

2
3 4

0
SWS

~ D. DI1 &~) 07 0 ;6'0 013
D60~0012
08 010

BTl

o
SW3

05

5
6
7

CJCJ

B
ICF4

8

SY - 155B Board
(component side)

There are 11 LED, D5- D15, to confirm the operations of the SY -155B board. The following explains the workings of each LED.
05 (RED)

I
f

: HARD INITIALIZE completion TALLY (SYS- INIT) · Lights when the power source voltage monitoring circuit (ICK2) is reset. · Extionguished when initialization (SYS-INIT ROUTINE) is completed. : BACKUP MEMORY INITIALIZE TALLY · Lights when the backup memory is initialized at the DEFAULT value. : SYS nomal TALLY · Blinks when the system component ( SYSCON) operates normally. (200ms interval)

08 (YELLOW) : SP-I3 MUTE TALLY Lights when the system activates
mlltinQ' on thp. SP-l ~ hOlirrl MUTE

---r-' PB AUDIO MUTE
L
.SP-13 OUTPUT MUTE

i

(Lights in each case.) 09 (YELLOW) : AUDIO MEMORY DATA OUT TALLY · AUDIO MEMORY (MEM-40 board) Lights when data is output from the SP-I3 board · Lights when the monitor is set to REPRO in the SYNC REC (RMW) mode.
INPUT o-(ANALO(; 0--0--/DIGITAl.J PEPRO 0 _ (TAPE) SP-13

06 (RED)

07 (GREEN)

DIO D/A

·-----AUDIO MEMORY Lights at this time

KY

:A

(

1

I
1

2 - 20

PCM - 7030 (UC,EK)

010 (YELLOW): RMW T ALLY

Lights when the operating mode of the CXDl008/1009 (SP-13 board) is RMW (Read Modify Write).

013 (RED)

: 9- PIN data signal transmission TALLY (9-PIN microcomputer-SYSCON) · Lights when data is transmitted to a 9- PIN microcomputer.


the recording system mode
014 (RED)

is SYNC REC. ®When SOFT tape (wide track pitch) is loaded. : 9- PIN data signal reception TALLY (SCU -+ 9- PIN microcomputer) · Lights when receiving data from a SCU (J,t PD71051) ICK4.
015 (GREEN)

® When the leading head is selected
on the ERROR RATE HEAD menu (SERVICE MENU)

: 9 - PIN

data

siganl

transmission

® When trailing head is selected on
the TEST signal recording menu (SERVICE MENU)

TALLY (SCU -9PIN microcomputer) · Lights when data is transmitted to a SCU.

Conditions

~DE
CZ.lor®[email protected]

Leading head mode AUDIO SUB AUDIO SUB AUDIO SUB AUDIO SUB AUDIO SUB AUDIO SUB AUDIO SUB AUDIO SUB AUDIO

Trailing head mode

The above

@ @ @ @
PB

AUDIO SUB AUDIO SUB AUDIO SUB AUDIO SUB AUDIO SUB AUDIO SUB AUDIO SUB AUDIO SUB AUDIO SUB

REC

SYNC REC

SAFE

REC

SYNC REC

ASSEMBLE

REC REC

SYNC REC

AUDIO INSERT

PB

SYNC REC

SUB INSERT

® ® ® ® ®

REC

MONITOR REC

SAFE

REC

MONITOR REC

ASSEMBLE

REC REC PB PB

MONITOR REC

AUDIO INSERT

MONITOR REC

SUB INSERT

o
011 (GREEN)

SUB

REC

mark: Sound comes out from here

: 9- PIN microcomputer normal TALLY · Lights when communication between the 9- PIN microcomputer (ICK3) and the system (ICF2) has been confirmed.

012 (RED)

: 9- PIN data signal reception TALLY (9-PIN microcomputer-SYSCON) · Lights when receiving data from a 9- PIN microcomputer.

pCM - 7030 (UC.EK)

2 -.21

LED display management after power is on

~

POWER ON

(

ENTRY

I
HARD Initialization (SYS-INm

: LED

D5~ 13

Lighted Extinguished

: LED D5

I
OS Initialization (RT30V-14)

I
Initialization of each TASK (OS executes)

Initialization management

I
PRIORITY lowest position TASK management (XI NIT - CLR) : LED
D6~13

Display starts front panel TALLY display starts

: Fluorescent display

I
Normal TASK management (aS control)

2 - 22

PCM - 7030 (UC,EK)

I

2-6-2.

Replacing the SY-1558 board

(1) Remove the top and bottom panels from the unit.

The following two items are necessary when replacing the SY -155B board (1) Initialization of the SETUP item to back up
(2)

(2) Open the ADA-18 board and the SP-i3 board (3) Remove the DIO-lO board and the optional MEM - 40B board (if the DABK -7032 is installed) . (4) Remove the harness from each connector of the SY -155B board. (5) Remove the SY - 155B board from the bottom panel. Step 3 Installation of. the new SY -1558 board (1) Carry out the following procedures before installing the SY -155B board in the unit. CD Solder (solder bridge) the battery backup solder slit (SL2) (see diagram below) on the solder side of the SY -155B board.
B
A

Writing to the SERVO system DPG and AGC DATA backup memory Make sure that the following time infonnation (CD [email protected]) is reset by doing step (1). CD HOUR TIME (DRUM ON TIME) : display menu, service munu @OPERATION TIME: service munu ® TAPE RUNNIING TIME: service munu @TOTAL HOUR TIME: service munu @THREAD/UNTHREAD COUNTER: service munu Consequently, before replacing the SY-155B board make a note of this infonnation. After replacing, it is important to figure out the sum of the information taken note of and the newly displayed time to set the correct time.

2
SY - 155B Board (solder side)

SY -1558 board replacing procedure Step 1 Make a note of the hour meter data (1) Tum on the power (POWER) to the unit.
(2) Open the service menu by simultaneously pressing

~

make a solder
bridge

solder 51 it (SL2)

the STOP, DISPLAY and SET keys on the front panel. (3) While pressing the DATA key, tum the search dial to the right to set the work area of the display of the front panel to the following. Display (work area) : oPEn
(4) Press the SET key. (5) While pressing the MENU key, tum the search

I

dial to the right, display the hour meter data (CD [email protected]) and make a note of them. (6) Tum the power (POWER) OFF. Step 2 Removing the SY -1558 board Carry out the following procedure while referring to the instructions for "2-1. Removal of boards and major mechanical parts". Note: Carry out removal (POWER) turned off. PCM - 7030 (UC,EK) with the power 2 - 23

@ Set the bit switches (SW5, SE,3) on the component

(6) Confinn that the SY-155B board's LED D6 (red) goes out when the power switch is turned on. (At this point the Error 2 - 05 indicator is displayed on the FL display because the SERVO is not yet adjusted.) Further, confinn that the time code indicator (upper left) and time code mode indicator (time area, upper right) are set in the tape time area of the FL display in the following way.

side of the SY -155B board in the following way.

· For J/UC model
s.vs SW3
t:::I

SW3 (SW3-1-SW3-B): All OFF

ON ON

SY-155B Board (component

I~~i~~~~il
I~~i~~i~el

side)

SWS (SW5-1-SW5-B) SW5-1 : OFF SW5-2SWS-7: OFF SW5-B : ON

· For EK model
SW3 (SW3-1-SW3-8): All OFF

ON ON

I~~ii~i~il

~
Destination
J, UC

Tape time area Set time code display SMPTE EBU Time code mode display

SW5 (SW5-1-SWS-8) SW5-1 :ON SW5-2SW5-7:0FF SW5-8 :ON

DF

1~~~~~i~~1
INITIALIZE)

EK

-

SWS-' : OFF ( ON

Timeco~e settIng SWS-B: switch . BACKUP fo~ardlng

If the display is different. confirm the setting of

sWItch : J. UC : EK

OFF N ' . . I' : ~~ onltla Ize O N : Inltlafize

switch 1 (time code setting switch that depends on the destination) of the SY -155B board's bit switch (SW5) and redo the step 4 procedure form
(1).

(3) Install the SY -155B board in the unit. (4) Attach the bottom panel to the unit. Step 4 Initialization of set up data and time information data (1) Turn the main unit power switch (POWER) to
ON.

(It must be redone. The TC format's default value is set by the number 1 switch during backup memory initialaization.) Step 5 Writing the servo system's DPG and AGC data into memory
(1) Perfonn adjustment of DPG and AGC by opening

(2) Confirm that LED D6, that confums the operation of the SY -155B board, is lighted. (Execute the initialization of the back up memory TALLY) (3) Confinn that the FL display of the front panel display is as below. (That is; SERVO DPG, AGe DATA CLEAR) FL display: Error 2- 05 (4) Tum main unit power switch to OFF. (5) Set switch number 8 of the SY -155B board's bit switch (SW5) to OFF. Note: Make sure that this switch (SW5-8) is off. If it is left on, the back up memory will be initiali2ed each time the power switch is turned on.
2 - 24

up the test menu in the service menu. Concerning adjustment. Perfonn it while referring to 4- 21 page, 4- 5-1. SWP position adjustment and 4-22 page, 4-5-2. ATG playback AGC adjustment (2) Confirm that Error 2-05 is not displayed in the FL display. Further, insert a cassette that has finished being recorded (music) and replay it to confinn that the sound is reproduced. (3) Tum the power switch (POWER) to OFF. (4) Tum the power switch (POWER) to ON. (5) Confirm that the following indicators are not displayed on the FL display. Display indicator (work area) : Error 1- 05
If the indicator is displayed confinn the battery

I I
1

backup's solder slit. PCM - 7030 (UC,EK)

(6) Turn the power switch (POWER) to OFF. (7) Install the optional board.
(8) Close the SP-13 board and ADA -18 board and

fasten with screws. (9) Put on the top panel.
2- 6- 3. Replacing the lithium battery (CR-

2450)
Replace the SY -155B board's lithium battery (CR2450) for battery backup according to the following procedure. Name of parts Lithium battery (CR- 2450) : 1 (part number: 1-528-229-11) Explanation of operation Replacing procedure _ (1) Turn the power switch (POWER) of the PCM7030 to ON and wait for more than 10 minutes. (2) Turn the power switch (POWER) to OFF.
(3) Remove the SY -155B board from the unit.

(4) Remove the solder from the solder slit (SL2) on

the solder side of the SY -155B board. ,(5) Remove the lithium battery (BTl) from the SY -155B board. (6) Solder (solder bridge) a new lithium battery (CR

+5V

+--_20-˘CS 28 ,':-=-_ _t -_ _ _t - _--1 Vex

ICC1 ICC2

GND

-2450). (7) Solder (solder bridge) the solder slit (SL2). (8) Install the SY -155B board in the unit. (9) Turn the power switch (POWER) to ON. (10) Confirm that the ARAM (ALARM) indicator on the front panel is extinguished. Precautions: · Perform the change carefully because the contents of the SRAM will be destroyed if the pins of TP12, ICC1 and ICC2 are shorted.
·In procedure (8) above if ARAM (ALARM) is lighted

In the above circuits, Vcc + 5V and CS pull- up resistor + 5V are supplied to ICC1 and ICC2 by three power circuits as follows: CD Power source of the unit @ + 5V from C12 and C13 charged by the power source of the unit.
@ + 3V from BTl

(Error 1- 05 or Error 2- 05 are displayed in the FL display), their ALARM management is carried out. (Refer to the item on setting the selVO data) · Replace them after confirming that the v()ltage of the new batteries is 2.6V or more.

· During operation of the unit the above voltages are supplied by

CD, and ® recharges.

· When the unit is off the above voltages are supplied by ®. · When ® is completely discharged, the above voltages are supplied by ®. In this way the ICCl's and ICC2's SRAM data is backed up.

PCM - 7030 (UC.EK)

2 - 25

2-7. SELF- DIAGNOSIS (ERROR CODE)
2-7 -1.
This

Error codes
shows the error codes and the

section

malfunctioning parts that can be assumed from the error codes displayed (refer to the OPERATION MANUAL's pages 7-6, 7-2-2. for the section on error codes) by the self-diagnosis function of the SYS CPU (SY -155B board's ICF2, .Ll PD70216 [V50]). With these it is possible to know what caused the error.
Error code 1 -

**

(Error 1 - * *)

Errors that occur related to the SY - 155 board (system control)

Error code 1-01

Error content Error in ADDRESS BUS

Error level 5

Assumed malfunctioning parts
· .Ll PD70216L (CPU) (ICF2) · CXD8139AQ (ICF4) · ADDRESS (AO-A19) pattern · .Ll PD70216L (CPU) (ICF2) · CXD8139AQ (ICF4) · DATA (DO-DI5) pattern

1-02

Error in DATA BUS

5

1-03

Error in ROM

5

· AM27COlO (ROM) (ICC3, ICC4) · ADDRESS. DATA or CONTROL pattern in ROM
· .Ll PD43256AGU

1-04

Error in RAM

5

(RAM) (ICC1, ICC2) · ADDRESS, DATA or CONTROL pattern in RAM

1-05*

BACKUP MEMORY DATA has been destroyed

5

· Battery backup circuit · RAM · TL7705CPS (RESET IC) (ICK2) · SN74LS03NS (ICD3)
· .Ll

1-10

Invalid interrupt occurred

5

PD71059GB (ICU) (ICG1, ICHl) · ADDRESS, DATA or CONTROL pattern in ICU

* Refer

to the 2-7-2. Remedy for error code MError 2-05" on page 2-31.

2 - 26

PCM - 7030 (UC,EK)

I i l

Error code2-** (Error 2-**) Errors that occur related to the SV - 123 board (servo)

Error code 2-02

Error content Error in DATA BUS

Error level 5

Assumed malfunctioning parts · CXD8139AQ (ICF4) , SY -155 board (SV I/F circuit) · CXP80524 (CPU) (lC101), SV-123 board ·8P harness, SV-123 board SV -123 board · CXP80524 (CPU) (lCIOl) Same as error code 1- 05 (System backs up servo-system's DPG and AGe data) SV-I23 board · CXP80524 (CPU) (lC101) · SV !NT signal pattern ·8P harness · Cassette compartment (mechanical trouble) · Cassette compartment sensors (CC UP, CC DOWN signals) and harness · Cassette tape is stuck in the cassette compartment · Cassette compartment sensors (CC UP, CC DOWN signals) and harness · Cassette compartment motor and casstte compartment motor drive circuit (DR-I39 board) · Mechanical deck (tape guide, pinch r