Sony HCD-H170 - MECHANICAL ADJUSTMENTS; Precautions, Torque, and Timer Test Mode; Deck Section Adjustments Overview; Head Azimuth Adjustment

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SECTION 4
MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured alcohol-
moistened swab:
record/playback head pinch roller
erase head rubber belt
capstan idler
2. Demagnetize the record/playback head with a head
demagnetizer.
(Head demagnetizer do not approach for the erase head.)
3. Do not use a magnetized screwdriver for the adjustment.
4. After the adjustments, apply suitable locking compound
to the parts adjusted.
5. The adjustment should be performed with the rated
power supply voltage unless otherwise noted.
© Torque Measurement
_ 35 to 60g +cm
Ce 1026 (0.49 to 0.830z + inch)
2 to 6g*cm
(0.028 to 0.080z « inch)
35 to 60g*°cm
(0.49 to 0.830z « inch)
2 to 6g*cm
(0.028 to 0.080z * inch)
70 to 110g*cm
(0.98 to 1.520z * inch)
Forward
back tension
CQ- 102C
Reverse CQ- 102RB
Reverse
FF/REW CQ-201B
@ Timer Test Mode
When BAND, SHIFT and PRESET/TIMER+ buttons are
pressed at the same time the following time test operation is
performed. After the operation, it becoms in the system
reset mode. Take care that the frequency preset to the tuner
is initialized.
POWER OFF
Timer set Clock
Timer ON
Timer OFF
Function
FL tube display (FL1100)
All light
AM10: 23
AM10: 24
AM10: 31
TUNER
for 2 seconds
“AM 10: 23”
for 0.5 second
“AM 10: 24”
for 0.5 second
+—-—---POWER ON
for 2 seconds
Last channel
for 1 second
“AM 00: 00” flashing ~<—--—-POWER ON
(ie “TUNER”
4) Finish
SECTION 5
ELECTRICAL ADJUSTMENTS
DECK SECTION
1, The adjustment should be performed in the publication.
(Be sure to make playback adjustment at first.)
2. The adjustment and measurement should be performed
for both L-CH and R-CH.
e Switch position
DOLBY NR switch: OFF
@ Test Tape
P-4-A100
P-4-L300
WS-48B
10kH, —10dB
315Hz, 0dB
3kHz, 0dB
Head Azimuth Adjustment
Level Adjustment
Tape Speed Adjustment
Record/Playback Head Azimuth Adjustment
Procedure:
1. Forward Playback Mode
Reverse Playback Mode
test tape
P-4-A100
(10kHz, —10dB)
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