Harman Kardon HK680 - Troubleshooting Common Issues; No Lights or No Sound; Sound Problems; Tone Control and Phono Issues

HK680 ‘
GENERAL UNIT PARTS LIST
Ref. No. PartNo, Description
AA —A443-HK6880A ~—s- FRONT PANEL ASS'Y (>
AA _—A443-HK6880B = FRONT PANEL ASS'Y @>
AB —A319-HK6880A_ ~—SLEG_ASS'Y
131 1414-17801 CABINET TOP
133 1423-03101 CABINET BACK, BOTTOM
135 1424-38801 CABINET BACK, REAR
137: 1443-15201 PANEL, FRONT (>
137 1443-15202 PANEL, FRONT QD
140. 1562-09602 FRAME, L >
140 1562-09601 FRAME, L QD
141 1562-09702 FRAME, R (>
141 ~~: 1562-09701 FRAME, R QD
143 1532-22801 WINDOW, REMOTE SENSOR
144 1511-23601 PLATE, PHONO
146 1662-67202 PUSH BUTTON, SPEAKES 1/2, TONE DEFEAT,
MONO >
146 1662-67201 PUSH BUTTON, SPEAKES 1/2, TONE DEFEAT,
MONO @>
147 ~~: 1660-02302 PUSH BUTTON, POWER (E>
147 1660-02301 PUSH BUTTON, POWER QD
148 = 1662-71902 PUSH BUTTON, FUNCTION (>
148 1662-71901 PUSH BUTTON, FUNCTION QD
150 1630-05002 ROTARY KNOB, VOLUME @B>
150 1630-05001 ROTARY KNOB, VOLUME @>
151 1632-20702 ROTARY KNOB, BASS, TREBLE, BALANCE @>
151 1632-20701 ROTARY KNOB, BASS, TREBLE, BALANCE >
154 1732-09801 INDICATOR, FUNCTION (LISTEN) (x7)
155 1732-09901 INDICATOR, FUNCTION (REC) (x7)
157 1742-09402 ORNAMENT, SPEAKERS, TONE DEFEAT/
MONO (x2) @
157 1742-09401 ORNAMENT, SPEAKERS, TONE DEFEAT/
MONO (X2) QD
159 1319-04303 LEG (x4)
160 1319-04601 LEG, SPONGE (x4)
161 2211-7332 CHASSIS
162 2219-8389 METAL FITTG, REMOTO IN/OUT
163 2219-8007 METAL FITTG, POWER TRANS
164 2219-8364 METAL FITTG, H CENTER
165 2219-8009 METAL FITTG, R SIDE TOP
166 2219-8010 METAL FITTG, TRANS SIDE
RefNo. PartNo.
167 2219-8011
168 =. 2219-8012
169 = 2219-8013
170 =. 2219-8366
71 2219-8367
172 =~. 2219-8349
173 2219-8390
174 =. 2219-8393
175 =——-2114-131143
177 2222-7346
178 =—-.2222-7179
179 2222-7347
181 2224-7090
182 =. 2224-146
183 = 2224-7147
- 185 = 2459-3003511
186 2402-0374
187 2114-71246
188 = 2240-R0101
189 2360-7026
190 =. 2218-R0130
191 2440-60
192 2327-R0140102
193 2327-R0126044
194 — 2327-R0130062
197 —- 2347-R0126082
199 2347-R0130062
200 = 2347-R0130062
204 = 2347-R0130062
205 —-2347-R0130062
207. =. 2347-R0130082
208 = 2347-R0130084
210 =: 2347-R0130102
211 2347-R0140064
214 = 2347-R0130062
215 = -2347-R0130102
217 =——-.2347-R0130082
218 2401-0473
220 =. 2557-F301426
Descripti
METAL FITTG, R SIDE
METAL FITTG, R CENTER
METAL FITTG, TRANS CENTER
METAL FITTG, MAIN HEAT SINK, REAR SIDE
METAL FITTG, MAIN HEAT SINK, FRONT SIDE €
METAL FITTG, POWER IN SIDE
METAL FITTG, POWER IN PCB
METAL FITTG, RE IN FORCE
BUSHING, RCV701
HEAT SINK, 0417, 418, 0427-434
HEAT SINK, 0951, 952
HEAT SINK, MAIN TOP SIDE
INSULATOR, HEAT SINK
INSULATOR, TOP COVER (x2)
INSULATOR, POWER TR (x4)
RIVET, PLASTIC, PHONO PLATE
WASHER, PLASTIC, HEAT SINK {x6)
BUSHING, AC CORD
HOLDER, WIRING (x20)
BOSS, SPECIAL, FRONT (x9)
BRACKET,FIX, WIRING
NUT,SPE (x4) ;
SCREW,BND+ (4x10 mm)({x4)
SCREW,BND+ (2.6x4 mm)(x2)
SCREW,BND+
(3x6
mm)(x4)
eC
SCREW,BND T+ (2.6x8 mm)
SCREW,BND T+ (3x6 mm)(x3)
SCREW,BND T+ (3x6 mm)}(x2)
SCREW,BND T+ (3x6 mm)(x17)
SCREW,BND T+ (3x6 mm)(x14)
SCREW,BND T+ (3x8 mm)(x17)
SCREW,BND T+ (3x8 mm)(x21)
SCREW,BND T+ (3x10 mm){x10)
SCREW,BND T+ (4x6 mm)(x6)
SCREW,BND T+ (3x6 mm)(x6)
SCREW,BND T+ (3x10 mm)(x7)
SCREW BND T+ (3x8 mml{x2) a i
WASHER,METAL (x2)
SCREW,B SPW+ (3x14 mm)(x10)