Adjustments; Adjustment Location: Mechanism Deck Block - Sony PCM-R500 Service Manual

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3 7 6 3 1 5 1 5 0
SECTION 3

ADJUSTMENTS

PRECAUTION
1. The adjustments are performed in the sequence that they are
described.
2. The required test tapes are:
TY-7111 (8-909-812-00) ................................. Level
TY-7252 (8-909-822-00) ................................. Tracking
TY-7551 (8-909-814-00) ................................. Function
TY-30B (8-892-358-00) ................................... Blank
The required torque meter is:
TW-7131 (8-909-708-71) ................................ FWD
3. Switch and Control Settings
REMOTE switch : OFF
REC MODE switch : 48k (STANDARD)
REC LEVEL control : Minimum
PHONE LEVEL control : Minimum
4. Preparation of End Sensor Cassette
(1) Push the slider locks of a cassette tape and slide the slider in
the direction of the arrow.
hub hole
slider lock
slider
T E
L 1 3 9 4 2 2 9 6 5 1 3
hub hole
slider lock
(2) Open the cassette lid and cut tape.
cassette lid
cut tape
slider tape
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(3) Turn the hubs to take-up tape (for both T and S sides).
The end sensor cassette tape for end sensor adjustment is
now prepared.
5. Take care never to turn RV1 and RV2 within the RF AMP board
.
of the cassette compartment section.
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6. When adjusting tape pass and each guide, as shown below, it is
a good practice to remove the holder assy and use the DAT cas-
sette holder (J-8000-002-A). This facilitates adjustment work.
• When removing and installing the holder assy, turn the pulley
counterclockwise and set loading OUT condition for easy re-
moval and installation.
• When adjusting, turn the pulley clockwise and turn on the
CASSETTE TABLE IN switch (S2) to set loading IN condi-
tion. Then, set the test tape.
1 BVTT 3 × 8
5 Nylon washer
6 Step screw
7 Cassette
holder assy
4 Push down the holder
3 Cassette
in the direction
spring
2 BVTP 3 × 6
7. Test Mode
• To enter the test mode, short between TP (MAIN-TEST) and
the GND on the DIGITAL board, then turn on the power. The
meter scale within the fluorescent indicator tube (FL701) will
flash.
Press the OPEN/CLOSE 6 key and set the test tape. (The
specified tape should be used for each adjustment.)
Test Mode (Short between TP (MAIN-TEST) and GND)
1 Have "DPG" display lit in the fluorescent indicator tube.
(Press the AMS + key.)
• S2, T2 and F Guide Adjustments
• End Sensor Adjustment
• Tape Pass Fine Adjustment (×1.5FWD mode)
• DPG Adjustment
2 Have "TR" display lit in the fluorescent indicator tube.
(Press the " key.)
• FWD Torque Adjustment
• FWD Back Tension
(Torque measurement mode)
Adjustment
• To release the test mode, remove the short between TP (MAIN-
TEST) and GND. After necessary adjustment is completed,
be sure to release the test mode.
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8
8. After adjustment is completed, perform the following checks to
verify the tape speed.
(1) Check that with the REC MODE switch set to STANDARD
48k, tape is normally recorded and played back. (×1)
(2) Check that with the REC MODE switch set to LONG, tape
is normally recorded and played back. (×0.5)
(3) Check that in performing the CUE (" + )) or REVIEW
(" + 0) operation, "kyur kyur" sound is heard. (×3, ×8)

Adjustment Location: mechanism deck block

S1 guide
Q Q
3 7 6 3 1
S2 guide
u 1 6 3
.
2 4
9 9 8
(4) Check that after performing the FF ()) or REW (0)
operation, the time display is appropriate. (×16)
(5) Check that the AMS (+, =) operation is normal.
5 1 5 0 8 9 2 4 9
m
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2
9 9
T1 guide
T2 guide
8 2 9 9
F guide