Onkyo CP 1057 F Service Manual

Page 1

CP-1057F

SERIAL N0. 3209

ONKYO SERVICE MANUAL

QUARTZ LOCKED DIRECT DRIVE
FULLY AUTOMATIC TURNTABLE

MODEL CP-1057F

UDN, UDC, UD

120V AC, 60 Hz

UGV, UG

220V AC, 50 HZ

UW

120 or 220V AC, 50/60Hz

UQA, UQB

SAFETY-RELATED COMPONENT WARNING! I

COMPONENTS IDENTIFIED BY MARK ,5 ON
THE SCHEMATIC DIAGRAM AND IN THE PARTS
LIST ARE CRITICAL FOR RISK OF FIRE AND
ELECTRIC SHOCK. REPLACE THESE COM-
PONENTS WITH ONKYO PARTS WHOSE PARTS
NUMBERS APPEAR AS SHOWN IN THIS MANUAL.

MAKE LEAKAGE-CURRENT 0R RESISTANCE
MEASUREMENTS TO DETERMINE THAT
EXPOSED PARTS ARE ACCEPTABLY IN-
SULATED FROM THE SUPPLY CIRCUIT BEFORE
RETURNING THE APPLIANCE TO THE
CUSTOMER.

: ONKYO®
Alllllll chPlINEms

240V, 50 Hz
SPECIFICATIONS
Type: Quartz locked direct drive

Turntable Platter:
Motor:

Speeds:

Wow & Flutter:
Signal-to-Noise Ratio:
Tonearm:

Effective Arm Length:

Overhang:

Offset Angle:

Maximum Tracking
Error:

Suitable Cartridge
Weight:

Tracking Force:

Other Features:

fully automatic turntable
with auto lead-in and return,
reject, repeat, cue and search
button functions, two-motor
micro-computer design

330 mm (13) aluminum
diecast.

Quartz locked direct drive
brushless DC motor

33-1/3, 45 rpm,

less than 0.023% (WRMS)
better than 80 dB (DIN B)
Statically balanced straight
type

226 mm (8-7/8)

15 mm (1/2")

21 degrees

+3 degrees, *1 degree

Min. 4, Max 9 grams

0 7 3.0 grams

Tracking force direct readout
scale

Removable headshell
Anti-skating device

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CP-1057F

Dimensions (WxDxH): 442 x410 x 160 mm 4. Lead-in count adjustment (Tracking force: 2 grams
(17-7/16 x 16-3/16 x 6-1/8") Anti-skating force: 2 grams Speed: 45 rpm)

Weight: 8,8 kg (20 lbs.) Using test record 0NK-1000, adjust so the lead-in

Accessories: Headshell, counterweight, count is 10-20 counts for both 300m and 17cm records.
overhang gauge,adapter, Adjust using the PU pulley shutter and NCDG-1683
instruction manual printed circuit board jumper lead.

Cartridge (G/W) MC type (0C64MCE/ audio- The Count changes in the following manner as the jumper
technica ATUL3) leads are cut:

Frequency responce 20 . . . 40,000 Hz

gsggiance .85)?lV0-6 cm / dyne Jumper lead A 3 count changes

Stylus tip 0.4X0.7 mil elliptical stylus/ Jumperlead B 6 count changes
DN-64STE/audio-technica Jumper lead C 12 count chnages
ATN-UL3 Jumper lead i cut: - . connect: +

Tracking force 1.7 kg

, 5. Return count adjustment (Speed: 45 rpm)
Optional Recommended Headshell: SHZIE Using test record ONK-lOOO, adjust so the 3mm pitch
. return count is 24-26 counts. Adjust using the PU
Specifications are subject to change for further product pulley eccentricity pin. C onfirm that the tonearm does
improvements. not return until 22 counts at a pitch of 1mm.

SERVICE PROCEDURES

lnsuhtion resistance measurement
Connect the insulating-resistance tester between the plug of
power supply cord and chassis.
Specifications; D model 500 V 3.3 10.33 MS]
G/W models 500 V more than 10 M9

R703-1K ohm

/ Return ADJ.

ADJUSTMENT PROCEDURES

1. Return sensitivity adjustment (fig. 1)

Turn the unit upside-down and, with the DD motor and
arm motor connector removed, connect a DC voltmeter
between TP and GND. Move the arm to the inside of the LEAD'i" ADJ'
platter, put the return sensor in the release position and
shut out extraneous light. Starting with the semi-fixed
resistor R703 set all the way to the left,begin to rotate
the resistor clockwise to the point where the voltage
between TP and GND rises ZmV above low (a few
hundred mV).

2. Platter height adjustment (fig. 2)
Return the unit to the upright position and rotate the
float base height adjustment screw. Adjust so that the
platter height is 24mm 1' 3mm above the cabinet.

3. Stylus height adjustment (Stylus: UD: 0C-39M UG:

included (0C-64MCE)

Set the tonearm in the up position and adjust the

lifter plate screw so the height of the stylus tip is

8mm t 1mm above the platter mat.

Note 1: The height should be 10.5 mm: 1mm measured
from the surface of the platter.

Note 2: Rotate the lifter plate screw counterclockwise fig_ 2
to lower the stylus height and clockwise to
raise the stylus height.