For U.S.A.

, Canada, Europe,
Asia, China, Hong Kong &
Taiwan R.O.C. model
Hi-Fi Component

SERVICE MANUAL
MODEL AVR-1602/682
AV SURROUND RECEIVER

Some illustrations using in this service manual are slightly different from the actual set.

14-14, AKASAKA 4-CHOME, MINATO-KU, TOKYO 107-8011 JAPAN

Telephone: 03 (3584) 8111

X0116 1174 NC 0111

 AVR-1602/682

SCHEMATIC DIAGRAMS(5/7)
1 2 3 4 5 6 7 8 9 10 11

+ B LINE G
- B LINE

NOTICE WARNING: SIGNAL LINE

ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics.
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacement parts recommended by the manufacture.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CAUTION:
CONDITION. Before returning the unit to the customer, make sure you make either (1) a
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR leakage current check or (2) a line to chassis resistance check. If the leakage SCHEMATIC DIAGRAMS(5/7)
NOTICE. current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective.
MAIN P.W.B. UNIT H
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.

46
 AVR-1602/682

SCHEMATIC DIAGRAMS(5/7)
1 2 3 4 5 6 7 8 9 10 11

A B B

C D
F

+ B LINE G
- B LINE

NOTICE WARNING: SIGNAL LINE

ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics.
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacement parts recommended by the manufacture.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CAUTION:
CONDITION. Before returning the unit to the customer, make sure you make either (1) a
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR leakage current check or (2) a line to chassis resistance check. If the leakage SCHEMATIC DIAGRAMS(5/7)
NOTICE. current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective.
MAIN P.W.B. UNIT H
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.

46
 AVR-1602/682

SCHEMATIC DIAGRAMS(5/7)
1 2 3 4 5 6 7 8 9 10 11

+ B LINE G
- B LINE

NOTICE WARNING: SIGNAL LINE

ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics.
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacement parts recommended by the manufacture.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CAUTION:
CONDITION. Before returning the unit to the customer, make sure you make either (1) a
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR leakage current check or (2) a line to chassis resistance check. If the leakage SCHEMATIC DIAGRAMS(5/7)
NOTICE. current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective.
MAIN P.W.B. UNIT H
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.

46
 AVR-1602/682

SCHEMATIC DIAGRAMS(5/7)
1 2 3 4 5 6 7 8 9 10 11

+ B LINE G
- B LINE

NOTICE WARNING: SIGNAL LINE

ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics.
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacement parts recommended by the manufacture.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CAUTION:
CONDITION. Before returning the unit to the customer, make sure you make either (1) a
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR leakage current check or (2) a line to chassis resistance check. If the leakage SCHEMATIC DIAGRAMS(5/7)
NOTICE. current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective.
MAIN P.W.B. UNIT H
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.

46
 AVR-1602/682

SCHEMATIC DIAGRAMS(5/7)
1 2 3 4 5 6 7 8 9 10 11

+ B LINE G
- B LINE

NOTICE WARNING: SIGNAL LINE

ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics.
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacement parts recommended by the manufacture.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CAUTION:
CONDITION. Before returning the unit to the customer, make sure you make either (1) a
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR leakage current check or (2) a line to chassis resistance check. If the leakage SCHEMATIC DIAGRAMS(5/7)
NOTICE. current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective.
MAIN P.W.B. UNIT H
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.

46
 AVR-1602/682

SCHEMATIC DIAGRAMS(5/7)
1 2 3 4 5 6 7 8 9 10 11

+ B LINE G
- B LINE

NOTICE WARNING: SIGNAL LINE

ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics.
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacement parts recommended by the manufacture.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CAUTION:
CONDITION. Before returning the unit to the customer, make sure you make either (1) a
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR leakage current check or (2) a line to chassis resistance check. If the leakage SCHEMATIC DIAGRAMS(5/7)
NOTICE. current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective.
MAIN P.W.B. UNIT H
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.

46
 AVR-1602/682

SCHEMATIC DIAGRAMS(6/7)
1 2 3 4 5 6 7 8 9 10 11

+ B LINE G
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM WARNING: - B LINE
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Parts marked with this symbol have critical characteristics.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT Use ONLY replacement parts recommended by the manufacture.
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
NOTICE.
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective. SCHEMATIC DIAGRAMS(6/7)
WARNING: FRONT P.W.B. UNIT H
DO NOT return the unit to the customer until the problem is located and TACT S/W P.W.B. UNIT
corrected.
H/P & POWER S/W P.W.B. UNIT

47
 AVR-1602/682

SCHEMATIC DIAGRAMS(6/7)
1 2 3 4 5 6 7 8 9 10 11

A B B

C D
F

+ B LINE G
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM WARNING: - B LINE
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Parts marked with this symbol have critical characteristics.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT Use ONLY replacement parts recommended by the manufacture.
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
NOTICE.
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective. SCHEMATIC DIAGRAMS(6/7)
WARNING: FRONT P.W.B. UNIT H
DO NOT return the unit to the customer until the problem is located and TACT S/W P.W.B. UNIT
corrected.
H/P & POWER S/W P.W.B. UNIT

47
 AVR-1602/682

SCHEMATIC DIAGRAMS(6/7)
1 2 3 4 5 6 7 8 9 10 11

+ B LINE G
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM WARNING: - B LINE
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Parts marked with this symbol have critical characteristics.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT Use ONLY replacement parts recommended by the manufacture.
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
NOTICE.
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective. SCHEMATIC DIAGRAMS(6/7)
WARNING: FRONT P.W.B. UNIT H
DO NOT return the unit to the customer until the problem is located and TACT S/W P.W.B. UNIT
corrected.
H/P & POWER S/W P.W.B. UNIT

47
 AVR-1602/682

SCHEMATIC DIAGRAMS(6/7)
1 2 3 4 5 6 7 8 9 10 11

+ B LINE G
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM WARNING: - B LINE
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Parts marked with this symbol have critical characteristics.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT Use ONLY replacement parts recommended by the manufacture.
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
NOTICE.
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective. SCHEMATIC DIAGRAMS(6/7)
WARNING: FRONT P.W.B. UNIT H
DO NOT return the unit to the customer until the problem is located and TACT S/W P.W.B. UNIT
corrected.
H/P & POWER S/W P.W.B. UNIT

47
 AVR-1602/682

SCHEMATIC DIAGRAMS(6/7)
1 2 3 4 5 6 7 8 9 10 11

+ B LINE G
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM WARNING: - B LINE
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Parts marked with this symbol have critical characteristics.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT Use ONLY replacement parts recommended by the manufacture.
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
NOTICE.
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective. SCHEMATIC DIAGRAMS(6/7)
WARNING: FRONT P.W.B. UNIT H
DO NOT return the unit to the customer until the problem is located and TACT S/W P.W.B. UNIT
corrected.
H/P & POWER S/W P.W.B. UNIT

47
 AVR-1602/682

SCHEMATIC DIAGRAMS(6/7)
1 2 3 4 5 6 7 8 9 10 11

+ B LINE G
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM WARNING: - B LINE
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Parts marked with this symbol have critical characteristics.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT Use ONLY replacement parts recommended by the manufacture.
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
NOTICE.
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective. SCHEMATIC DIAGRAMS(6/7)
WARNING: FRONT P.W.B. UNIT H
DO NOT return the unit to the customer until the problem is located and TACT S/W P.W.B. UNIT
corrected.
H/P & POWER S/W P.W.B. UNIT

47
 AVR-1602/682

SCHEMATIC DIAGRAMS(7/7)
1 2 3 4 5 6 7 8 9 10 11

G
+ B LINE
SIGNAL LINE
NOTICE WARNING:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics.
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacement parts recommended by the manufacture.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CAUTION: SCHEMATIC DIAGRAMS(7/7)
CONDITION. Before returning the unit to the customer, make sure you make either (1) a
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR leakage current check or (2) a line to chassis resistance check. If the leakage TUNER P.W.B. UNIT H
NOTICE. current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.

48
 AVR-1602/682

SCHEMATIC DIAGRAMS(7/7)
1 2 3 4 5 6 7 8 9 10 11

A B B

C D
F

G
+ B LINE
SIGNAL LINE
NOTICE WARNING:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics.
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacement parts recommended by the manufacture.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CAUTION: SCHEMATIC DIAGRAMS(7/7)
CONDITION. Before returning the unit to the customer, make sure you make either (1) a
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR leakage current check or (2) a line to chassis resistance check. If the leakage TUNER P.W.B. UNIT H
NOTICE. current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.

48
 AVR-1602/682

SCHEMATIC DIAGRAMS(7/7)
1 2 3 4 5 6 7 8 9 10 11

G
+ B LINE
SIGNAL LINE
NOTICE WARNING:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics.
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacement parts recommended by the manufacture.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CAUTION: SCHEMATIC DIAGRAMS(7/7)
CONDITION. Before returning the unit to the customer, make sure you make either (1) a
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR leakage current check or (2) a line to chassis resistance check. If the leakage TUNER P.W.B. UNIT H
NOTICE. current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.

48
 AVR-1602/682

SCHEMATIC DIAGRAMS(7/7)
1 2 3 4 5 6 7 8 9 10 11

G
+ B LINE
SIGNAL LINE
NOTICE WARNING:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics.
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacement parts recommended by the manufacture.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CAUTION: SCHEMATIC DIAGRAMS(7/7)
CONDITION. Before returning the unit to the customer, make sure you make either (1) a
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR leakage current check or (2) a line to chassis resistance check. If the leakage TUNER P.W.B. UNIT H
NOTICE. current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.

48
 AVR-1602/682

SCHEMATIC DIAGRAMS(7/7)
1 2 3 4 5 6 7 8 9 10 11

G
+ B LINE
SIGNAL LINE
NOTICE WARNING:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics.
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacement parts recommended by the manufacture.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CAUTION: SCHEMATIC DIAGRAMS(7/7)
CONDITION. Before returning the unit to the customer, make sure you make either (1) a
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR leakage current check or (2) a line to chassis resistance check. If the leakage TUNER P.W.B. UNIT H
NOTICE. current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.

48
 AVR-1602/682

SCHEMATIC DIAGRAMS(7/7)
1 2 3 4 5 6 7 8 9 10 11

G
+ B LINE
SIGNAL LINE
NOTICE WARNING:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics.
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacement parts recommended by the manufacture.
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CAUTION: SCHEMATIC DIAGRAMS(7/7)
CONDITION. Before returning the unit to the customer, make sure you make either (1) a
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR leakage current check or (2) a line to chassis resistance check. If the leakage TUNER P.W.B. UNIT H
NOTICE. current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.

48