Sony MHC-881 Service Manual

SERVICE MANUAL
® MHC-881/D7/G88 are composed of following models.
As for the service manual, it is issued for each component model,
then, please refer to it.
MHC-881/D7/G88
US Model
Canadian Model!
MHC-881/D7
AEP. Model
UK Model
MHC-881
E Model
Australian Mode!
Tourist Model
MHC-G88
COMPONENTS MODEL NANE FOR THIS SYSTEM
MHC-881
MHC-G88
MHC-D7 HCD-H881D
HCD-H881
CD PLAYER/TUNER/AMP FRONT SPEAKER.
SS-H991
SURROUND SPEAKER
SS-SR10P
(Canadian model)
SS-SR991
(EXCEPT Canadian model)
SPECIFICATIONS
Supplied accessories
AM loop antenna (1)
Remote Commander
RM-SC1OOF (1)
(HCD-H881 : US, Canadian model)
RM-SDS0O (1)
(EXCEPT HCD-H881 : US, Canadian model)
Sony SUM-3 (NS) batteries (2)
FM lead antenna (1)
Speaker cords (4)
General
Power requirements
US, Canadian, Mexican model : 120V AC, 60Hz
AEP, German, Italian, East European,
CIS model : 220-230V AC, 50/60Hz
UK, Australian model : 240V AC, 50/60Hz
E, Saudi Arabia, Singapore, Argentine, Hong Kong,
Indonesia, Taiwan, Tourist model : 110- 120/220- 240V AC,
50/60Hz
Malaysia, Thailand model : 220- 240V AC, 50/60Hz
Power consumption
US model : 275W
Canadian model : 300VA
AEP, German, Italian,
CIS, UK, East European model : 145W
Other model : 190W
Dimensions
Approx. 280 X 325 x 360mm
(11'4 x 127% X 14% in) (w/h/d)
Mass
US, Canadian model
Approx. 10kg (22 Ib)
AEP, UK, German, Italian, East European, CIS model
Approx. 9.5kg (20 Ib 15 oz)
Other model
Approx. 9.0kg (19 Ib 14 oz)
incl. projecting parts and controls
Design and specifications are subject to change without notice.
MINI Hi-Fi COMPONENT SYSTEM
SONY.

Sony MHC-881 Specifications

General

Brand	Sony
Model	MHC-881
Category	Hi Fi Component
Language	English

Summary

Safety Check-out

Leakage Test

Procedures for measuring AC leakage current from exposed metal parts to earth ground.

Section 1 Servicing Notes

Notes on Handling the Optical Pick-up Block or Base Unit

Guidelines for safely handling the optical pick-up and its flexible board to prevent damage.

Notes on Laser Diode Emission Check

Instructions for safely checking the laser diode emission, emphasizing distance from the objective lens.

Section 3 Disassembly

3-1. Front Panel Removal

Step-by-step procedure for removing the front panel, including component references.

3-2. CD Block Removal

Procedure for removing the CD block mechanism from the unit.

3-3. Lid (A)/(B) Assy, Cassette, Mechanism Deck Block and HP/MIC Board Removal

Steps for disassembling the cassette, mechanism deck, and HP/MIC board.

Section 4 Adjustments

4-1. Mechanical Adjustments

Procedures for mechanical adjustments, including torque and tape tension measurements.

4-2. Electrical Adjustments

Guidelines for electrical adjustments in the deck section, including switch positions and test modes.

Tuner Section

Precautions In Repairing

CD Section

Focus Bias Adjustment

Adjustment procedure for focus bias when the optical block is replaced, focusing on eye pattern.

RF Level Check

S-Curve Check

Section 5 Explanation of IC Terminals

IC500 ASD0204-012-3BA (System Control /FL Drive)